- Synthesis of [N-methyl- 11C]-3-[(6-dimethylamino)pyridin-3-yl]-2,5-dimethyl-N, N-dipropylpyrazolo[1,5-a]pyrimidine-7-amine: A potential PET ligand for in vivo imaging of CRF1 receptors
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A convenient synthesis of [N-methyl- 11C]-3-[(6-dimethylamino)pyridin-3-yl]-2,5-dimethyl-N, N-dipropylpyrazolo[1,5-a]pyrimidine-7-amine (R121920), a highly selective CRF1 antagonist has been developed as a potential PET ligand. 3-[(6-methylamino)pyridin-3-yl]-2,5-dimethyl-N,N-dipropylpyrazolo [1,5-a]pyrimidine-7-amine (7), the precursor for radiolabelling was synthesized through a novel palladium catalyzed Suzuki coupling of aryl bromide 5 with heteroaryl boronate ester 4. The requisite boronate ester 4 was synthesized in four steps from 2-amino-4-bromopyridine in 50% overall yield. Although the synthesis of cold R121920 proceeded in 93% yield by sodium hexamethyl-disilazide (NaHMDS) mediated N-methylation of the desmethylamine 7 at -78°C, the attempted radiosynthesis under various conditions using conventional bases were not successful. However, the radiolabeling of [ 11C]R121920 was successfully carried out with [11C]MeOTf in acetone at -20°C in the absence of added basic reagents. The radiotracer was purified by RP-HPLC followed by RP-solid phase extraction. The yield of the reaction was 5% (at EOB) and the specific activity was > 1000 Ci/mmol (at EOB) with a radiochemical purity > 99%. Copyright
- Kumar, J.S. Dileep,Majo, Vattoly J.,Prabhakaran, Jaya,Simpson, Norman R.,Van Heertum, Ronald L.,John Mann
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Read Online
- N-(1H-IMIDAZOL-2-YL)BENZAMIDE COMPOUND AND PHARMACEUTICAL COMPOSITION COMPRISING THE SAME AS ACTIVE INGREDIENT
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N-(1H-imidazol-2-yl)benzamide compound of formula (I), or a pharmaceutically acceptable salt, a prodrug, a solvate, or a stereoisomer thereof which is a novel compound exhibiting excellent inhibitory activity against IRAK-4, can be used without side effects for efficient prevention and treatment of diseases mediated by IRAK-4 receptors, particularly autoimmune diseases or lymphomas.
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Page/Page column 42
(2021/04/10)
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- MRGPRX2 ANTAGONISTS AND USES THEREOF
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The present disclosure is directed to use of MrgprX2 antagonists in the treatment of inflammatory disorders, e.g., inflammatory disorders of the skin. This invention is also directed to pharmaceutical compositions comprising a MrgprX2 antagonist and a pharmaceutically or orally acceptable carrier for administration.
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Paragraph 00282-00283
(2021/05/15)
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- High-selectivity CSF1R inhibitor, preparation method and pharmaceutical applications thereof
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The invention relates to a high-selectivity CSF1R inhibitor with a structure represented by a formula (I), a preparation method and pharmaceutical applications thereof. According to the invention, thecompound can be widely applied to preparation of medicines for treating cancers, tumors, autoimmune diseases, metabolic diseases or metastatic diseases, especially for treating ovarian cancer, pancreatic cancer, prostate cancer, breast cancer, cervical cancer, glioblastoma, multiple myeloma, metabolic diseases, neurodegenerative diseases, primary tumor site metastasis or bone metastatic cancer, and is expected to be developed into a new generation of CSF1R inhibitor drugs.
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Paragraph 0028-0030
(2020/03/11)
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- Discovery of a First-in-Class Gut-Restricted RET Kinase Inhibitor as a Clinical Candidate for the Treatment of IBS
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Abdominal pain and abnormal bowel habits represent major symptoms for irritable bowel syndrome (IBS) patients that are not adequately managed. Although the etiology of IBS is not completely understood, many of the functions of the gastrointestinal (GI) tract are regulated by the enteric nervous system (ENS). Inflammation or stress-induced expression of growth factors or cytokines may lead to hyperinnervation of visceral afferent neurons in GI tract and contribute to the pathophysiology of IBS. Rearranged during transfection (RET) is a neuronal growth factor receptor tyrosine kinase critical for the development of the ENS as exemplified by Hirschsprung patients who carry RET loss-of-function mutations and lack normal colonic innervation leading to colonic obstruction. Similarly, RET signaling in the adult ENS maintains neuronal function by contributing to synaptic formation, signal transmission, and neuronal plasticity. Inhibition of RET in the ENS represents a novel therapeutic strategy for the normalization of neuronal function and the symptoms of IBS patients. Herein, we describe our screening effort and subsequent structure-activity relationships (SARs) in optimizing potency, selectivity, and mutagenicity of the series, which led to the discovery of a first-in-class, gut-restricted RET kinase inhibitor, 2-(4-(4-ethoxy-6-oxo-1,6-dihydropyridin-3-yl)-2-fluorophenyl)-N-(5-(1,1,1-trifluoro-2-methylpropan-2-yl)isoxazol-3-yl)acetamide (15, GSK3179106), as a clinical candidate for the treatment of IBS. GSK3179106 is a potent, selective, and gut-restricted pyridone hinge binder small molecule RET kinase inhibitor with a RET IC50 of 0.3 nM and is efficacious in vivo.
- Schenck Eidam, Hilary,Russell, John,Raha, Kaushik,Demartino, Michael,Qin, Donghui,Guan, Huiping Amy,Zhang, Zhiliu,Zhen, Gong,Yu, Haiyu,Wu, Chengde,Pan, Yan,Joberty, Gerard,Zinn, Nico,Laquerre, Sylvie,Robinson, Sharon,White, Angela,Giddings, Amanda,Mohammadi, Ehsan,Greenwood-Van Meerveld, Beverly,Oliff, Allen,Kumar, Sanjay,Cheung, Mui
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supporting information
p. 623 - 628
(2018/07/25)
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- Discovery of a Novel Series of 7-Azaindole Scaffold Derivatives as PI3K Inhibitors with Potent Activity
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The phosphoinositide 3-kinase (PI3K) inhibitors potently inhibit the signaling pathway of PI3K/AKT/mTOR, which provides a promising new approach for the molecularly targeted cancer therapy. In this work, a novel series of 7-azaindole scaffold derivatives was discovered by the fragment-based growing strategy. The structure-activity relationship profiles identified that the 7-azaindole scaffold derivatives exhibit potent activity against PI3K at molecular and cellular levels as well as cell proliferation in a panel of human tumor cells.
- Yang, Chengbin,Zhang, Xi,Wang, Yi,Yang, Yongtai,Liu, Xiaofeng,Deng, Mingli,Jia, Yu,Ling, Yun,Meng, Ling-Hua,Zhou, Yaming
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supporting information
p. 875 - 880
(2017/08/16)
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- A thiophene and pyrimidine derivatives, its preparation process and its use in medicine
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The invention discloses thiophene miazines derivates as well as a preparation method and a medical application thereof. The thiophene miazines derivates are compounds with a general formula I, a general formula II or a general formula III, wherein in the general formulae, Ar is any one of phenyl, halogen-substituted phenyl, C1-6 alkyl-substituted phenyl, biphenylyl, halogen-substituted biphenylyl, naphthyl, pyridyl, thienyl, halogen-substituted thienyl, C1-3 alkyl-substituted thienyl, furyl, halogen-substituted furyl and C1-3 alkyl-substituted furyl, A, D and E are respectively carbon atoms or nitrogen atoms but are not carbon atoms at the same time, and R is R1-NH-. The thiophene miazines derivates provided by the invention can be used for obviously restraining the activity of an EGFR (Epidermal Growth Factor Receptor) and the activity of A431 cells, are expected to be developed as a tyrosine kinase inhibitor, and are extensive in application prospect and medicinal value.
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Paragraph 0232-0234
(2016/12/01)
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- Indazole Compounds as IRAK4 Inhibitors
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The present invention provides indazole compounds of formula (I), which are therapeutically useful as kinase inhibitors, particularly IRAK4 inhibitors, wherein Z1, Z2, R1, R2, R3, ‘m’ and ‘n’ have the meanings given in the specification, and pharmaceutically acceptable salts or stereoisomers thereof that are useful in the treatment and prevention of diseases or disorders, in particular their use in diseases or disorders mediated by kinase enzyme, particularly IRAK4 enzyme. The present invention also provides pharmaceutical compositions comprising at least one of the compounds of the compound of formula (I) together with a pharmaceutically acceptable carrier, diluent or excipient.
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Paragraph 0273; 0274
(2016/11/28)
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- PI3K inhibitor, preparation method and application thereof in pharmacy
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The invention belongs to the technical field of pharmaceuticals and particularly relates to a PI3K inhibitor, a preparation method and application thereof in the pharmacy. The PI3K inhibitor is a compound of the structure shown by the general formula I or medically acceptable salt of the inhibitor. After the PI3K inhibitor is tested with a PI3K biochemical activity test method, the compound has excellent inhibitory activity to PI3K alpha and PI3K gamma, wherein the IC50 values of a plurality of compounds to the PI3K alpha and PI3K gamma reach nanomole grades (smaller than 100 nM). The result shows that the compounds can provide the inhibitor with better effectiveness and selectivity for curing PI3K-acted proliferative disease, and further a targeted drug for curing No. I type diabetes mellitus, lung disease, breast cancer, prostatic cancer, solid tumor, lymphoma, cardiovascular disease, rheumatoid arthritis, leukemia and the like can be hopefully developed. (Please see the general formula I in the description.).
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Paragraph 0297; 0298; 0299
(2016/12/26)
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- BICYCLIC HETEROCYCLYL DERIVATES AS IRAK4 INHIBITORS
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The present invention provides bicyclic heterocyclyl kinase enzyme inhibitor compounds of formula (I), which are therapeutically useful as kinase inhibitors, particularly IRAK4 inhibitors, wherein A, Y, Z, X1, X2, R1, R3, ‘m’, ‘n’ and ‘p’ have the meanings given in the specification and pharmaceutically acceptable salt or stereoisomer thereof that are useful in the treatment and prevention of diseases or disorder, in particular their use in diseases or disorder mediated by kinase enzyme, particularly IRAK4 enzyme. The present invention also provides pharmaceutical composition comprising at least one of the compounds of compound of formula (I) together with a pharmaceutically acceptable carrier, diluent or excipient therefor.
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Paragraph 131; 132
(2016/12/16)
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- ANTIMITOTIC AMIDES FOR THE TREATMENT OF CANCER AND PROLIFERATIVE DISORDERS
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Novel, antimitotic heteroaryl amides and pharmaceutically acceptable salts of Formula I where Ar, R5, R6, R8, R9, R11, X1, and X2 are as defined herein, as compounds for treatment and prevention of cancer and proliferative diseases and disorders.
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Page/Page column 68
(2015/09/28)
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- BICYCLIC HETEROCYCLYL DERIVATIVES AS IRAK4 INHIBITORS
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The present invention provides bicyclic heterocyclyl kinase enzyme inhibitor compounds of formula (I), which are therapeutically useful as kinase inhibitors, particularly IRAK4 inhibitors. wherein A, Y, Z, X1, X2, X3, R1, R3, 'm', 'n' and 'p' have the meanings given in the specification and pharmaceutically acceptable salt or stereoisomer thereof that are useful in the treatment and prevention of diseases or disorder, in particular their use in diseases or disorder mediated by kinase enzyme, particularly IRAK4 enzyme. The present invention also provides pharmaceutical composition comprising at least one of the compounds of compound of formula (I) together with a pharmaceutically acceptable carrier, diluent or excipient therefor.
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Page/Page column 23
(2015/07/23)
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- Azonia Aromatic Cations by Ring-Closing Metathesis: Synthesis of Azaquinolizinium Cations
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A strategy based on a ring-closing metathesis (RCM) reaction of pyridinium azadienes in the presence of the second generation Grubbs catalyst was employed as a new approach to synthesize the 1-azaquinolizinium (pyrido[1,2-a]pyrimidin-5-ium) heterocycle and some simple derivatives. This method was also successfully applied to the first reported synthesis of the benzo-1-azaquinolizinium (pyrimido[2,1-a]isoquinolinium) cation by using the Hoveyda-Grubbs catalyst in Cl2CHCHCl2 at 130 C.
- Abeng?zar, Alberto,Abarca, Beatriz,Cuadro, Ana M.,Sucunza, David,álvarez-Builla, Julio,Vaquero, Juan J.
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p. 4214 - 4223
(2015/06/30)
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- INDAZOLE COMPOUNDS AS IRAK4 INHIBITORS
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The present invention provides indazole compound of formula (I), which are therapeutically useful as kinase inhibitor, particularly IRAK4 inhibitors. wherein Z1, Z2, R1, R2, R3, 'm' and 'n' have the meanings given in the specification, and pharmaceutically acceptable salts or stereoisomers thereof that are useful in the treatment and prevention of diseases or disorder, in particular their use in diseases or disorder mediated by kinase enzyme, particularly IRAK4 enzyme. The present invention also provides pharmaceutical composition comprising at least one of the compounds of compound of formula (I) together with a pharmaceutically acceptable carrier, diluent or excipient therefor.
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Page/Page column 51
(2015/07/23)
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- NOVEL OXAZOLIDINONE DERIVATIVE AND MEDICAL COMPOSITION CONTAINING SAME
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Disclosed is a novel oxazolidinone derivative represented by Formula 1 above, in particular, a novel oxazolidinone compound having a cyclic amidoxime or cyclic amidrazone group. In Formula 1, R and Q are the same as defined in the detailed description. In addition, disclosed is a pharmaceutical composition for an antibiotic which includes the novel oxazolidinone derivative of Formula 1, a prodrug thereof, a hydrate thereof, a solvate thereof, an isomer thereof, or a pharmaceutically acceptable salt thereof as an active ingredient. The novel oxazolidinone derivative, the prodrug thereof, the hydrate thereof, the solvate thereof, the isomer thereof, and the pharmaceutically acceptable salt thereof have broad antibacterial spectrum against resistant bacteria, low toxicity and strong antibacterial effects against Gram-positive and Gram-negative bacteria and thus may be effectively used as antibiotics.
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Paragraph 0071-0073
(2014/02/16)
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- NOVEL OXAZOLIDINONE DERIVATIVE AND MEDICAL COMPOSITION CONTAINING SAME
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Disclosed is a novel oxazolidinone derivative represented by Formula 1 above, in particular, a novel oxazolidinone compound having a cyclic amidoxime or cyclic amidrazone group. In Formula 1, R and Q are the same as defined in the detailed description. In addition, disclosed is a pharmaceutical composition for an antibiotic which includes the novel oxazolidinone derivative of Formula 1, a prodrug thereof, a hydrate thereof, a solvate thereof, an isomer thereof, or a pharmaceutically acceptable salt thereof as an active ingredient. The novel oxazolidinone derivative, the prodrug thereof, the hydrate thereof, the solvate thereof, the isomer thereof, and the pharmaceutically acceptable salt thereof have broad antibacterial spectrum against resistant bacteria, low toxicity and strong antibacterial effects against Gram-positive and Gram-negative bacteria and thus may be effectively used as antibiotics.
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Paragraph 0080-0083
(2014/07/08)
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- Structure-activity relationships of substituted 1-pyridyl-2-phenyl-1,2- ethanediones: Potent, selective carboxylesterase inhibitors
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Inhibition of intestinal carboxylesterases may allow modification of the pharmacokinetics/pharmacodynamic profile of existing drugs by altering half-life or toxicity. Since previously identified diarylethane-1,2-dione inhibitors are decidedly hydrophobic,
- Young, Brandon M.,Hyatt, Janice L.,Bouck, David C.,Chen, Taosheng,Hanumesh, Parimala,Price, Jeanine,Boyd, Vincent A.,Potter, Philip M.,Webb, Thomas R.
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supporting information; experimental part
p. 8709 - 8715
(2011/02/23)
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- HETEROARYLS AMIDE DERIVATIVES AND THEIR USE AS GLUCOKINASE ACTIVATORS
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The present invention provides Formula (1A) compounds that act as glucokinase activators; pharmaceutical compositions thereof; and methods of treating diseases, disorders, or conditions mediated by glucokinase. X, Y, Z, R1, R2, R3, and R4 are as described herein.
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Page/Page column 66
(2010/04/06)
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- NITROGEN CONTAINING HETEROAROMATICS AS FACTOR Xa INHIBITORS
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The present application describes nitrogen containing heteroaromatics and derivatives thereof of formula (I) or pharmaceutically acceptable salt or prodrug forms thereof, wherein J is N or NH and D may be C(=NH)NH2, which are useful as inhibitors of factor Xa.
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Page/Page column 59
(2009/10/01)
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- OXAZOLIDINONE DERIVATIVES AS ANTIMICROBIALS
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The present invention relates to certain substituted phenyl oxazolidinones and to processes for the synthesis of the same. This invention also relates to pharmaceutical compositions containing the compounds of the present invention as antimicrobials. The compounds are useful antimicrobial agents, effective against a number of human and veterinary pathogens, including gram-positive aerobic bacteria, for example, multiple-resistant staphylococci, streptococci and enterococci as well as anaerobic organisms, for example, Bacterioides spp. and Clostridia spp. species, and acid fast organisms, for example, Mycobacterium tuberculosis, Mycobacterium avium and Mycobacterium spp.
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Page/Page column 91; 93
(2010/10/20)
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- Bicyclic heterocycles as cannabinoid receptor modulators
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The present application describes compounds according to Formula I, pharmaceutical compositions comprising at least one compound according to Formula I and optionally one or more additional therapeutic agents and methods of treatment using the compounds according to Formula I both alone and in combination with one or more additional therapeutic agents. The compounds have the general Formula I: including all prodrugs, pharmaceutically acceptable salts and stereoisomers, R1, R2, R3, R3a, R4, A, B, n, Y and Z are described herein.
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Page/Page column 8
(2008/06/13)
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- INHIBITORS OF HISTONE DEACETYLASE
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The invention relates to the inhibition of histone deacetylase. The invention provides compounds and methods for inhibiting histone deacetylase enzymatic activity. The invention also provides compositions and methods for treating cell proliferative diseases and conditions.
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Page/Page column 196
(2010/02/11)
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- Imidazole acetic acid TAFIa inhibitors: SAR studies centered around the basic P′1 group
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Structural modifications of the aminopyridine P1 ′ group of imidazole acetic acid based TAFIa inhibitors led to the discovery of the aminocyclopentyl analog 28, a 1nM TAFIa inhibitor with CLT50 functional activity of 14nM but without selectivity against CPB. While not as active, aminobutyl derivative 27 provided an improved 6.7-fold selectivity for TAFIa versus CPB.
- Nantermet, Philippe G.,Barrow, James C.,Lindsley, Stacey R.,Young, Marybeth,Mao, Shi-Shan,Carroll, Steven,Bailey, Carolyn,Bosserman, Michele,Colussi, Dennis,McMasters, Daniel R.,Vacca, Joseph P.,Selnick, Harold G.
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p. 2141 - 2145
(2007/10/03)
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- 4-OXOQUINOLIZINE ANTIMICROBIALS HAVING 2-PYRIDONE SKELETON AS PARTIAL STRUCTURE
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The present invention provides a 4-oxoquinolizine antibacterial agent having a 2-pyridone skeleton as a partial structure and also having a strong antibacterial effect on gram-positive bacteria, gram-negative bacteria or anaerobic bacteria. The compound h
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- AROYL-PIPERAZINE DERIVATIVES, THEIR PREPARATION AND THEIR USE AS TACHYKININ ANTAGONISTS
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This invention relates to piperazine derivatives of formula (I), wherein Y is bond or lower alkylene, R1 is aryl which may have substituent(s), R2 is aryl or indolyl, each of which may have substituent(s), R3 is hydrogen or lower alkyl, and R4 is as defined in the description, and its pharmaceutically acceptable salt, to processes for preparation thereof, to pharmaceutical composition comprising the same, and to a use of the same for treating or preventing Tachykinin-mediated diseases in human beings or animals. 1
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