- Contorted Heteroannulated Tetraareno[a,d,j,m]coronenes
-
Fused polycyclic aromatic compounds are interesting materials for organic electronics applications. To fine-tune photophysical or electrochemical properties, either various substituents can be attached or heteroatoms (such as N or S) can be incorporated into the fused aromatic backbone. Coronenes and heterocoronenes are promising compounds in this respect. Up until now, the possibilities for varying the attached fused heteroaromatics at the coronene core were quite limited, and realizing both electron-withdrawing and -donating rings at the same time was very difficult. Here, a series of pyridine, anisole and thiophene annulated tetraareno[a,d,j,m]coronenes has been synthesized by a facile two-step route that is a combination of Suzuki-Miyaura cross-coupling and a following cyclization step, starting from three different diarenoperylene dibromides. The contorted molecular π-planes of the obtained cata-condensed tetraarenocoronenes were analyzed by single-crystal X-ray crystallography, and the photophysical and electrochemical properties were systematically investigated by UV/Vis spectroscopy and cyclovoltammetry.
- Yang, Xuan,Rominger, Frank,Mastalerz, Michael
-
supporting information
p. 14345 - 14352
(2021/09/13)
-
- D-AMINO ACID OXIDASE INHIBITORS AND THERAPEUTIC USES THEREOF
-
The present invention relates to compounds of Formula (I): or a pharmaceutically acceptable salt thereof, wherein: each of A, B, C, D, and E, independently, is C, N, N—H, O, S, or absent is a single bond or a double bond; each of X, Y, and Z, independentl
- -
-
-
- Nobiletin derivative or pharmaceutically acceptable salt thereof as well as preparation method and application thereof
-
The invention discloses a nobiletin derivative or a pharmaceutically acceptable salt thereof as well as a preparation method and application thereof. The nobiletin derivative has a structural formula(I) shown in the description, in the formula, R1, R2, R3 and R4 are respectively selected from hydrogen, halogen, hydroxyl, amino, C1-6 substituted or non-substituted alkoxy, a C1-6 substituted or non-substituted ester group, C1-6 substituted or non-substituted alkamino and a C1-6 substituted or non-substituted amide group; R5 is selected from a C3-9 substituted or non-substituted aromatic ring and a C3-9 substituted or non-substituted aromatic heterocyclic ring; and X is selected from O or NR6. The nobiletin derivative or the pharmaceutically acceptable salt thereof, which is disclosed by theinvention, is novel in structure, and in addition, the compound has an excellent inhibition function on P-gp, can be prepared into a P-gp inhibitor, is capable of treating and/or preventing related diseases caused by P-gp, particularly diseases related to tumor drug resistance, or can be mixed and used with other medicines and used as a drug resistance reversal agent, has a high reversion multiple, and is capable of remarkably improving medicine effects of medicines.
- -
-
Paragraph 0075; 0084-0086
(2019/12/09)
-
- Aryl and Arylalkyl Substituted 3-Hydroxypyridin-2(1H)-ones: Synthesis and Evaluation as Inhibitors of Influenza A Endonuclease
-
Seasonal influenza infections are associated with an estimated 250–500 000 deaths annually. Resistance to the antiviral M2 ion-channel inhibitors has largely invalidated their clinical utility. Resistance to neuraminidase inhibitors has also been observed in several influenza A virus (IAV) strains. These data have prompted research on inhibitors that target the cap-snatching endonuclease activity of the polymerase acidic protein (PA). Baloxavir marboxil (Xofluza), recently approved for clinical use, inhibits cap-snatching endonuclease. Resistance to Xofluza has been reported in both in vitro systems and in the clinic. An X-ray crystallographic screening campaign of a fragment library targeting IAV endonuclease identified 5-chloro-3-hydroxypyridin-2(1H)-one as a bimetal chelating agent at the active site. We have reported the structure–activity relationships for 3-hydroxypyridin-2(1H)-ones and 3-hydroxyquinolin-2(1H)-ones as endonuclease inhibitors. These studies identified two distinct binding modes associated with inhibition of this enzyme that are influenced by the presence of substituents at the 5- and 6-positions of 3-hydroxypyridin-2(1H)-ones. Herein we report the structure–activity relationships associated with various para-substituted 5-phenyl derivatives of 6-(p-fluorophenyl)-3-hydroxypyridin-2(1H)-ones and the effect of using naphthyl, benzyl, and naphthylmethyl groups as alternatives to the p-fluorophenyl substituent on their activity as endonuclease inhibitors.
- Sagong, Hye Yeon,Bauman, Joseph D.,Nogales, Aitor,Martínez-Sobrido, Luis,Arnold, Eddy,LaVoie, Edmond J.
-
p. 1204 - 1223
(2019/05/24)
-
- Discovery of 5″-chloro-n-[(5,6-dimethoxypyridin-2- yl)methyl]-2,2':5',3″-Terpyridine-3'-carboxamide (mk-1064): A selective orexin 2 receptor antagonist (2-sora) for the treatment of insomnia
-
The field of small-molecule orexin antagonist research has evolved rapidly in the last 15 years from the discovery of the orexin peptides to clinical proof-of-concept for the treatment of insomnia. Clinical programs have focused on the development of antagonists that reversibly block the action of endogenous peptides at both the orexin 1 and orexin 2 receptors (OX1R and OX2R), termed dual orexin receptor antagonists (DORAs), affording late-stage development candidates including Merck's suvorexant (new drug application filed 2012). Full characterization of the pharmacology associated with antagonism of either OX1R or OX2R alone has been hampered by the dearth of suitable subtype-selective, orally bioavailable ligands. Herein, we report the development of a selective orexin 2 antagonist (2-SORA) series to afford a potent, orally bioavailable 2-SORA ligand. Several challenging medicinal chemistry issues were identified and overcome during the development of these 2,5-disubstituted nicotinamides, including reversible CYP inhibition, physiochemical properties, P-glycoprotein efflux and bioactivation. This article highlights structural modifications the team utilized to drive compound design, as well as in vivo characterization of our 2-SORA clinical candidate, 5''-chloro-N- [(5,6-dimethoxypyridin-2-yl)methyl] -2,2':5',3''-terpyridine-3'-carboxamide (MK-1064), in mouse, rat, dog, and rhesus sleep models.
- Roecker, Anthony J.,Mercer, Swati P.,Schreier, John D.,Cox, Christopher D.,Fraley, Mark E.,Steen, Justin T.,Lemaire, Wei,Bruno, Joseph G.,Harrell, C. Meacham,Garson, Susan L.,Gotter, Anthony L.,Fox, Steven V.,Stevens, Joanne,Tannenbaum, Pamela L.,Prueksaritanont, Thomayant,Cabalu, Tamara D.,Cui, Donghui,Stellabott, Joyce,Hartman, George D.,Young, Steven D.,Winrow, Christopher J.,Renger, John J.,Coleman, Paul J.
-
p. 311 - 322
(2014/04/03)
-
- Phenyl substituted 3-hydroxypyridin-2(1H)-ones: Inhibitors of influenza A endonuclease
-
Inhibition of the endonuclease activity of influenza RNA-dependent RNA polymerase is recognized as an attractive target for the development of new agents for the treatment of influenza infection. Our earlier study employing small molecule fragment screening using a high-resolution crystal form of pandemic 2009 H1N1 influenza A endonuclease domain (PAN) resulted in the identification of 5-chloro-3-hydroxypyridin-2(1H)-one as a bimetal chelating ligand at the active site of the enzyme. In the present study, several phenyl substituted 3-hydroxypyridin-2(1H)-one compounds were synthesized and evaluated for their ability to inhibit the endonuclease activity as measured by a high-throughput fluorescence assay. Two of the more potent compounds in this series, 16 and 18, had IC50 values of 11 and 23 nM in the enzymatic assay, respectively. Crystal structures revealed that these compounds had distinct binding modes that chelate the two active site metal ions (M1 and M2) using only two chelating groups. The SAR and the binding mode of these 3-hydroxypyridin-2-ones provide a basis for developing a new class of anti-influenza drugs.
- Parhi, Ajit K.,Xiang, Amy,Bauman, Joseph D.,Patel, Disha,Vijayan,Das, Kalyan,Arnold, Eddy,Lavoie, Edmond J.
-
p. 6435 - 6446
(2013/10/22)
-
- FSH RECEPTOR ANTAGONISTS
-
The invention relates to FSH receptor antagonist according to general formula (I) or a pharmaceutically acceptable salt thereof and to a pharmaceutical composition containing the same. The compounds can be used for the treatment and prevention of endometriosis, for the treatment and prevention of pre-menopausal and peri-menopausal hormone-dependent breast cancer, for contraception, and for the treatment of uterine fibroids and other menstrual-related disorders
- -
-
-
- UREA DERIVATIVE HAVING PI3K INHIBITORY ACTIVITY
-
Provided is a compound or a pharmaceutically acceptable salt thereof which inhibits the activity of PI3K to regulate many biological processes including the growth, differentiation, survival, proliferation, migration, metabolism, and the like of cells and is therefore useful for the prophylaxis/therapy of diseases including inflammatory diseases, arteriosclerosis, vascular/circulatory diseases, cancer/tumors, immune system diseases, cell proliferative diseases, infectious diseases, and the like. The above problem was solved by providing a urea derivative shown in the present specification, or a pharmaceutically acceptable salt thereof.
- -
-
-
- PYRAZOLE INHIBITORS OF PHOSPHATIDYLINOSITOL 3-KINASE
-
The present invention relates to compounds useful as inhibitors of PI3K, particularly of PI3Kγ. The invention also provides pharmaceutically acceptable compositions comprising said compounds and methods of using the compositions in the treatment of variou
- -
-
-
- ISOINDOLINONE INHIBITORS OF PHOSPHATIDYLINOSITOL 3-KINASE
-
The present invention relates to compounds useful as inhibitors of PI3K, particularly of PI3Kγ. The invention also provides pharmaceutically acceptable compositions comprising said compounds and methods of using the compositions in the treatment of various disease, conditions, or disorders.
- -
-
Page/Page column 54
(2011/08/04)
-
- INHIBITORS OF PI3 KINASE
-
The present invention relates to compounds of Formula I, II or III or a pharmaceutically acceptable salt thereof; methods of treating diseases or conditions, such as cancer, using the compounds; and pharmaceutical compositions containing the compounds, wherein the variables are as defined herein
- -
-
Page/Page column 51-52
(2010/10/03)
-
- TRIPYRIDYL CARBOXAMIDE OREXIN RECEPTOR ANTAGONISTS
-
The present invention is directed to tripyridyl carboxamide compounds which are antagonists of orexin receptors, and which are useful in the treatment or prevention of neurological and psychiatric disorders and diseases in which orexin receptors are involved. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which orexin receptors are involved.
- -
-
Page/Page column 15
(2010/03/02)
-
- ISONICOTINAMIDE OREXIN RECEPTOR ANTAGONISTS
-
The present invention is directed to isonicotinamide compounds which are antagonists of orexin receptors, and which are useful in the treatment or prevention of neurological and psychiatric disorders and diseases in which orexin receptors are involved. Th
- -
-
Page/Page column 49
(2010/05/14)
-
- TETRAHYDROTHIAZOLOPYRIDINE INHIBITORS OF PHOSPHATIDYLINOSITOL 3-KINASE
-
The present invention relates to compounds (I) useful as inhibitors of PBK, particularly of PI3K gamma. The invention also provides pharmaceutically acceptable compositions comprising said compounds and methods of using the compositions in the treatment of various disease, conditions, or disorders
- -
-
Page/Page column 44-45
(2010/09/17)
-
- TRI-CYCLIC PYRAZOLOPYRIDINE KINASE INHIBITORS
-
The present invention relates to compounds useful as inhibitors of P13K, particularly of P13Kgamma. The invention also provides pharmaceutically acceptable compositions comprising said compounds and methods of using the compositions in the treatment of several diseases, such as cancer and autoimmune diseases.
- -
-
Page/Page column 52
(2010/12/18)
-
- Inhibitors of PI3 kinase
-
The present invention relates to compounds of Formula I, or a pharmaceutically acceptable salt thereof, that inhibit phosphoinositide 3-kinase; methods of treating diseases or conditions, such as cancer, using the compounds; and pharmaceutical compositions containing the compounds.
- -
-
Page/Page column 30
(2009/07/10)
-
- PYRIDINE CARBOXAMIDE OREXIN RECEPTOR ANTAGONISTS
-
The present invention is directed to pyridyl carboxamide compounds which are antagonists of orexin receptors, and which are useful in the treatment or prevention of neurological and psychiatric disorders and diseases in which orexin receptors are involved
- -
-
Page/Page column 65-66
(2009/07/03)
-
- Antitumor agents 222. Synthesis and anti-androgen activity of new diarylheptanoids
-
Fifteen new diarylheptanoids were synthesized and evaluated for antagonistic activity against androgen receptor (AR)-mediated reporter gene transcription using DU145, PC-3, and LNCaP prostate cancer cell lines. Most compounds showed activity in a 5α-dihydrotestosterone (DHT)-induced reporter gene expression assay in DU145 cells transfected with wild-type AR. Ten compounds (5, 8, 10, 14-15, and 18-22) were equipotent with hydroxyflutamide (HF), the anti-androgen currently available for the treatment of prostate cancer. However, except for compounds 5 and 10, none of the tested compounds was significantly effective in attenuating DHT-induced reporter gene expression in LNCaP cells, which contain endogenous mutant AR.
- Ohtsu, Hironori,Itokawa, Hideji,Xiao, Zhiyan,Su, Ching-Yuan,Shih, Charles C.-Y.,Chiang, Tzuying,Chang, Eugene,Lee, YiFen,Chiu, Shang-Yi,Chang, Chawnshang,Lee, Kuo-Hsiung
-
p. 5083 - 5090
(2007/10/03)
-