- Preparation method and application of tetrahydrobenzothiophene compound and pharmaceutical composition
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The invention belongs to the field of medicines, and particularly relates to a tetrahydrobenzothiophene compound as well as a pharmaceutical composition and a preparation method and application thereof. The tetrahydrobenzothiophene compound is a compound I as shown I. In-flight R1 And R2 The C1 -4 is a saturated/unsaturated hydrocarbon group. - OCH3 , OCH2 CH3 Phenyl, substituted phenyl, NO2 One - COR of - OH - F, Cl - Br. I - H R1 AND R2 Or different. R3 It is-F. - Cl, Br, I, OH, Amino, C1 -4 saturated/unsaturated hydrocarbon group, OCH3 , OCH2 CH3 , H, Wherein one of them is, n ≥ 5, n Being an integer. The compound effectively inhibits salmonella by inhibiting the synthesis of ATP-dependent transporter in the lipopolysaccharide synthesis pathway. Aeruginosa, escherichia coli and staphylococcus aureus.
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Paragraph 0169; 0172-0173; 0241; 0244-0245
(2021/10/16)
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- Improved synthesis of sterically encumbered heteroaromatic biaryls from aromatic β-keto esters
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A protocol for the synthesis of hindered 4-aryl 2-aminopyrimidines from β–keto esters is described. The process employs trifluoroethanol as an essential additive to promote the guanidine condensation reaction, enabling the synthesis of 25 aryl- and heteroaryl substituted aminopyrimidines in good yields and high purities with no column chromatography. The conditions described herein are readily scalable and have been employed in the large-scale synthesis of the clinical A2a/A2bR antagonist AB928.
- Rosen, Brandon R.,Ul Sharif, Ehesan,Miles, Dillon H.,Chan, Nicholas S.,Leleti, Manmohan R.,Powers, Jay P.
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supporting information
(2020/03/25)
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- Synthesis and Antiproliferative Activities of Novel Substituted 5-Anilino-α-Glucofuranose Derivatives
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In order to find novel antitumor candidate agents with high efficiency and low toxicity, 14 novel substituted 5-anilino-α-glucofuranose derivatives have been designed, synthesized and evaluated for antiproliferative activities in vitro. Their structures were characterized by NMR (1H and 13C) and HR-MS, and configuration (R/S) at C(5) was identified by two-dimensional 1H,1H-NOESY-NMR spectrum. Their antiproliferative activities against human tumor cells were investigated by MTT assay. The results demonstrated that most of the synthesized compounds had antiproliferative effects comparable to the reference drugs gefitinib and lapatinib. In particular, (5R)-5-O-(3-chloro-4-{[5-(4-fluorophenyl)thiophen-2-yl]methyl}anilino)-5-deoxy-1,2-O-(1-methylethylidene)-α-glucofuranose (9da) showed the most potent antiproliferative effects against SW480, A431 and A549 cells, with IC50 values of 8.57, 5.15 and 15.24 μm, respectively. This work suggested 5-anilino-α-glucofuranose as an antitumor core structure that may open a new way to develop more potent anti-cancer agents.
- Hou, Qiaoli,Li, Baolin,Li, Xiabing,Sun, Baoli,Wang, Lili,Wang, Wei,Zhang, Yaling
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- NITROGEN-CONTAINING TRICYCLIC DERIVATIVE HAVING HIV REPLICATION INHIBITORY ACTIVITY
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The present invention provides a novel compound having antiviral activity, especially HIV replication inhibitory activity and a medicament containing the same. The compound represented by the formula: wherein A3 is CR3A, CR3A/s
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Paragraph 0469; 0470
(2018/04/19)
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- Diarylamino glucosan derivative, and preparation method and anti-tumor purpose thereof
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The invention belongs to the field of medicinal chemistry, and particularly relates to a diarylamino glucosan derivative, and a preparation method and an anti-tumor purpose thereof, wherein the diarylamino glucosan derivative particularly relates to a compound shown as a formula I. The invention also relates to the preparation method of the diarylamino glucosan derivative, and the purpose of the diarylamino glucosan derivative in an aspect of preparing medicine for treating tumor diseases. The diarylamino glucosan derivative particularly has the obvious inhibition effects on human skin quamous cell carcinoma cells, human lung carcinoma cells and human colon cancer cells.
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Paragraph 0097; 0098; 0099; 0100
(2017/04/26)
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- Synthesis and biological evaluation of 1,2,4-triazole-3-thione and 1,3,4-oxadiazole-2-thione as antimycobacterial agents
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Resistance among dormant mycobacteria leading to multidrug-resistant and extremely drug-resistant tuberculosis is one of the major threats. Hence, a series of 1,2,4-triazole-3-thione and 1,3,4-oxadiazole-2-thione derivatives (4a–5c) have been synthesized and screened for their antitubercular activity against Mycobacterium tuberculosis H37Ra (H37Ra). The triazolethiones 4b and 4v showed high antitubercular activity (both MIC and IC50) against the dormant H37Ra by in vitro and ex vivo. They were shown to have more specificity toward mycobacteria than other Gram-negative and Gram-positive pathogenic bacteria. The cytotoxicity was almost insignificant up to 100?μg/ml against THP-1, A549, and PANC-1 human cancer cell lines, and solubility was high in aqueous solution, indicating the potential of developing these compounds further as novel therapeutics against tuberculosis infection.
- Sonawane, Amol D.,Rode, Navnath D.,Nawale, Laxman,Joshi, Rohini R.,Joshi, Ramesh A.,Likhite, Anjali P.,Sarkar, Dhiman
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p. 200 - 209
(2017/07/13)
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- Design and synthesis of antimicrobial active new molecular entities of N-substituted pipradol derivatives
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Synthesis of antimicrobial 4-(hydroxyldiphenyl methyl)piperidin-1-yl)(substituted phenyl)methanone derivatives by using conventional chemical reactions to produces feasible and entirely new chemical entities (NCE’S) which were having a great potential microbial activities equivalent to fexofenidine used as a biological standard. This invention may help full for derive more potential pipradol molecules with peptide bond linkage.
- Sri Ramudu,Ramachandran,Venkat Rao,Murali Krishna,Satya Narayana,Reddy, Kallam Naveen
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p. 2113 - 2115
(2017/10/06)
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- Concise synthesis of cyclic carbonyl compounds from haloarenes using phenyl formate as the carbonyl source
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Various cyclic carbonyl compounds were concisely synthesized by carbonylative cyclization of haloarenes bearing nucleophilic moieties under Pd catalysis. A broad substrate scope and a feasible large-scale synthesis clearly demonstrate the high applicability of the reaction as a general, user-friendly method for access to cyclic carbonyl compounds.
- Konishi, Hideyuki,Nagase, Hiroki,Manabe, Kei
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supporting information
p. 1854 - 1857
(2015/01/30)
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- TETRAZOLINONE COMPOUND AND USE THEREOF
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The compound represented by formula (1): wherein R4 and R5 each represents a hydrogen atom, a halogen atom, or a C1-C3 alkyl group; R6 represents a C1-C4 alkyl group, a C3-C6 cycloalkyl group, or the like; R7, R8, and R9 each represents a hydrogen atom, a halogen atom, or the like; R10 represents a C1-C3 alkyl group, or the like; R13 represents a C1-C3 alkyl group, or the like; and Q represents a phenyl group, or the like; has an excellent control effect on pests.
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Paragraph 0804
(2015/11/16)
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- TETRAZOLINONE COMPOUND AND APPLICATIONS THEREOF
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Disclosed is a tetrazolinone compound having a high pest control effect and represented by the formula (1): wherein R1, R2, R3, and R11 each represent a halogen atom, a C1-C6 alkyl group, or the like; R4 and R5 each represent a hydrogen atom, a halogen atom, a C1-C3 alkyl group, or the like; R6 represents a C1-C3 alkyl group which may have a halogen atom(s) or the like; R7, R8, and R9 each represent a hydrogen atom, a halogen atom, or the like; R10 represents a C1-C3 alkyl group or the like; R12 represents a C1-C6 alkyl group, a C3-C6 cycloalkyl group, or the like, and R13 represents a C1-C6 alkyl group, a C2-C6 alkenyl group, or the like.
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Paragraph 0776
(2015/11/24)
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- TETRAZOLINONE COMPOUNDS AND ITS USE AS PESTICIDES
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The present invention provides a compound having an excellent efficacy for controlling pests. A tetrazolinone compound of a formula (1): [wherein R1 represents an C6-C16 aryl group, an C1-C12 alkyl group, or a C3-C12 cycloalkyl group, etc., which each optionally be substituted; R2, R3, R4 and R5 represent independently of each other a hydrogen atom, a halogen atom or an C1-C3 alkyl group, etc.; R6 represents an C1-C6 alkyl group, a C3-C6 cycloalkyl group, a halogen atom, a C1-C6 haloalkyl group, an C2-C6 alkenyl group, an C1-C6 alkoxy group, or a C1-C6 haloalkoxy group, etc.; R7, R8 and R9 represent independently of each other a hydrogen atom, a halogen atom, or an C1-C4 alkyl group, etc.; X represents an oxygen atom or a sulfur atom; and R10 represents an C1-C6 alkyl group, etc.] shows an excellent controlling efficacy on pests.
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Page/Page column 911
(2013/11/18)
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- Conformational studies of tertiary oligo-m-benzanilides and oligo-p-benzanilides in solution
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A series of oligo-m- and p-benzanilides were made and their conformations in solution were studied by NMR. In most cases, conformational mixtures were observed as soon as three or more monomers were incorporated into the oligomer. Some crystal structures were obtained, which indicated that helical conformations were adopted in the solid state.
- Chabaud, Laurent,Clayden, Jonathan,Helliwell, Madeleine,Page, Abigail,Raftery, James,Vallverdú, Lluís
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experimental part
p. 6936 - 6957
(2010/10/02)
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- Design and synthesis of 2-arylbenzimidazoles and evaluation of their inhibitory effect against Chlamydia pneumoniae
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Chlamydia pneumoniae is an intracellular bacterium that responds poorly to antibiotic treatment. Insufficient antibiotic usage leads to chronic infection, which is linked to disease processes of asthma, atherosclerosis, and Alzheimer's disease. The Chlamydia research lacks genetic tools exploited by other antimicrobial research, and thus other approaches to drug discovery must be applied. A set of 2-arylbenzimidazoles was designed based on our earlier findings, and 33 derivatives were synthesized. Derivatives were assayed against C. pneumoniae strain CWL-029 in an acute infection model using TR-FIA method at a concentration of 10 μM, and the effects of the derivatives on the host cell viability were evaluated at the same concentration. Fourteen compounds showed at least 80% inhibition, with only minor changes in host cell viability. Nine most potential compounds were evaluated using immunofluorescence microscopy on two different strains of C. pneumoniae CWL-029 and CV-6. The N-[3-(1H-benzimidazol-2-yl)phenyl]-3-methylbenzamide (42) had minimal inhibitory concentration (MIC) of 10 μM against CWL-029 and 6.3 μM against the clinical strain CV-6. This study shows the high antichlamydial potential of 2-arylbenzimidazoles, which also seem to have good characteristics for lead compounds.
- Keurulainen, Leena,Salin, Olli,Siiskonen, Antti,Kern, Jan Marco,Alvesalo, Joni,Kiuru, Paula,Maass, Matthias,Yli-Kauhaluoma, Jari,Vuorela, Pia
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supporting information; experimental part
p. 7664 - 7674
(2011/03/17)
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- Synthesis of 6- or 4-functionalized indoles via a reductive cyclization approach and evaluation as aromatase inhibitors
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Two new series of benzonitrile derivatives on position 6 or 4 of indole ring were successfully synthesized via a Leimgruber-Batcho reaction. All the compounds were evaluated in vitro on the inhibition of aromatase (CYP19) and 17α-hydroxylase-C17,20-lyase
- Leze, Marie-Pierre,Palusczak, Anja,Hartmann, Rolf W.,Le Borgne, Marc
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scheme or table
p. 4713 - 4715
(2009/04/08)
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- 4-(HETEROCYCLYL)ALKYL-N-(ARYLSULFONYL) INDOLE COMPOUNDS AND THEIR USE AS 5-HT6 LIGANDS
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The present invention relates to novel 4-(Heterocyclyl)alkyl-N- (arylsulfonyl)indole compounds of the formula (I), their derivatives, their stereoisomers, their pharmaceutically acceptable salts and pharmaceutically acceptable compositions containing them
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Page/Page column 22
(2008/12/07)
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- Design and synthesis of potent inhibitors of the malaria parasite dihydroorotate dehydrogenase
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Pyrimidine biosynthesis presents an attractive drug target in malaria parasites due to the absence of a pyrimidine salvage pathway. A set of compounds designed to inhibit the Plasmodium falciparum pyrimidine biosynthetic enzyme dihydroorotate dehydrogenase (PfDHODH) was synthesized. PfDHODH-specific inhibitors with low nanomolar binding affinities were identified that bind in the N-terminal hydrophobic channel of dihydroorotate dehydrogenase, the presumed site of ubiquinone binding during oxidation of dihydroorotate to orotate. These compounds also prevented growth of cultured parasites at low micromolar concentrations. Models that suggest the mode of inhibitor binding is based on shape complementarity, matching hydrophobic regions of inhibitor and enzyme, and interaction of inhibitors with amino acid residues F188, H185, and R265 are supported by mutagenesis data. These results further highlight PfDHODH as a promising new target for chemotherapeutic intervention in prevention of malaria and provide better understanding of the factors that determine specificity over human dihydroorotate dehydrogenase.
- Heikkil?, Timo,Ramsey, Christopher,Davies, Matthew,Galtier, Christophe,Stead, Andrew M. W.,Johnson, A. Peter,Fishwick, Colin W. G.,Boa, Andrew N.,McConkey, Glenn A.
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p. 186 - 191
(2007/10/03)
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- Preparation, X-ray structure and propylaminolysis of 7,7-dichloro-5,7- dihydro-thieno[3,4-b]pyridin-5-one
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Refluxing 2-methylpyridine-3-carboxylic acid with thionyl chloride for 6-7 h gave (~50%) title compound dichlorothienolactone 2 as was confirmed by a X-ray structure analysis. The propylaminolysis of 2 provides a new and convenient access to highly functi
- Van Es, Theodorus,Staskun, Benjamin,Fernandes, Manuel A.
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p. 373 - 376
(2008/09/19)
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- Alkylphenyliminoimidazolidine derivatives for treating urinary incontinence
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A compound of formula I or of tautomeric formula II wherein: R1 and R5 are each independently H, F, Cl, Br, CH2F, CHF2, CF3, Me, or OMe; R2 and R4 are each independently H, a branched C3-6-alkyl, F, Cl, Br, CH2F, CHF2, CF3 or Me, wherein at least one of the groups R2 or R4 is a branched C3-6-alkyl; and R3 is H, F, Cl, Br, CH2F, CHF2, CF3 or Me, or a pharmacologically acceptable salt thereof, pharmaceutical compositions containing these compounds, and their use in treating urinary incontinence or a bladder disease.
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- Synthesis and biological evaluation of 3-arylisoquinolines as antitumor agents
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To investigate the structure-activity relationship of 7,8-dimethoxy-2-methyl-3-(4,5-methylenedioxy-2-vinylphenyl)isoquinolin-1(2H) -one 2, diverse substituted 3-arylisoquinolines were synthesized and tested in vitro antitumor activity against five human tumor cell lines. The results showed a broad antitumor spectrum for a series of 3-arylisoquinolines.
- Cho, Won-Jea,Park, Myun-Ji,Chung, Byung-Ho,Lee, Chong-Ok
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- Synthesis and comparative molecular field analysis (CoMFA) of antitumor 3-arylisoquinoline derivatives
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In this study a series of 3-arylisoquinoline derivatives were synthesized and cytotoxicity against human melanoma tumor cell evaluated, and a three dimensional quantitative structure-activity relationship was investigated using the comparative molecular field analysis (CoMFA). The results suggested that the electrostatic, steric and hydrophobic factors of 3-arylisoquinolines were strongly correlated with the antitumor activity. Considerable predictive ability (cross-validated r2 as high as 0.721) was obtained through CoMFA. Copyright (C) 1998 Elsevier Science Ltd.
- Cho, Won-Jea,Kim, Eui-Ki,Park, Myun-Ji,Choi, Sang-Un,Lee, Chong-Ock,Cheon, Seung Hoon,Choi, Bo-Gil,Chung, Byung-Ho
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p. 2449 - 2458
(2007/10/03)
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- Utility of Complementary Molecular Reactivity and Molecular Recognition (CMR/R) Technology and Polymer-Supported Reagents in the Solution-Phase Synthesis of Heterocyclic Carboxamides
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The use of our recently reported chemical library purification strategy in the development of a herbicidal lead, N-(3-benzoylphenyl)-3-(1,1-dimethylethyl)-1-methyl-1H-pyrazole-5-carboxamide (3), is described. The approach applying fundamental properties of complementary molecular reactivity and molecular recognition (CMR/R) as the basis for a general purification strategy was utilized. Polymeric reagents were used in the synthesis to generate reactive species involved in product formation, and complementary molecular reactivity/molecular recognition polymer 8 (CMR/R polymer 8) was used in the solution-phase syntheses of building blocks, primary libraries, and lead refinement libraries. An extension of the CMR/R methodology was applied, utilizing a sequestration enabling reagent (SER), transforming a reactant into an electrophilic species sequestrable by CMR/R polymer 8. This library purification strategy enabled rapid lead generation and lead refinement to afford herbicide 27o. The CMR/R solid-phase purification technique enabled a simple, general, and powerful protocol, eliminating the usual tedious and time-consuming methods required for solution-phase product purification. The result was the synthesis of hundreds of compounds, prepared in a relatively short time, leading to a compound with a 4-fold improvement in herbicidal activity over the initial lead.
- Parlow, John J.,Mischke, Deborah A.,Woodard, Scott S.
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p. 5908 - 5919
(2007/10/03)
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- Synthesis of 4-N,N-dialkylaminoethyl-2-indolones as potential dopamine agonists
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A set of fourteen 4-ethyl>-2-indolone analogues of dopamine were synthesized in 15 steps and evaluated for their affinities towards the D2 receptor using sulpiride or spiperone as radioligands.Six analogues displayed D2 agonist activities comparable (Ki = 450 - 650 nM) to Ropinirole or SK and F 101468.The functionalized amino side chain introduced in the 4-position can be used to modulate the lipophlicity of the analogues without significantly affecting D2 activity. - Keywords: lactam; indolone; rigid dopamine analogue; D2 receptor binding
- Namil, A.,Benoit-Guyod, M.,Leclerc, G.
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p. 973 - 982
(2007/10/03)
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- Synthesis of new indolemethanamines using the Leimgruber-Batcho reaction
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A short and efficient synthesis of the title compounds is reported starting with commercially available cahboxylic acids 1 and 5, respectively. By appropriate modifications in the course of the Leimgruber-Batcho reaction used in the key step quite stable
- Stanetty,Koller
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p. 433 - 437
(2007/10/02)
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- THE PALLADIUM-CATALYSED ARYLATION OF ACTIVATED ALKENES WITH AROYL CHLORIDES
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Aroyl chlorides react with activated alkenes in presence of a tertiary amine and a catalytic amount of palladium acetate to give arylated alkenes, specifically cinnamic acid derivatives and stilbenes.The reaction involves a highly efficient decarbonylation of the aroyl chloride.High yields can be obtained at low catalyst concentration by choice of an appropriate base.The reaction is not particularly sensitive to substituents in the aroyl chloride, although strongly electron-donating groups are advantagenous (yields up to 98percent).With monosubstituted alkenes E-isomers are formed with almost complete specificity.A mechanism for the reaction is proposed.
- Blaser, Hans-Ulrich,Spencer, Alwyn
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p. 267 - 274
(2007/10/02)
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- Process for preparing highly pure 1-nitroanthraquinone
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1-Nitroanthraquinone is produced in highly pure form by a process comprising the steps of partially oxidizing 3-nitro-o-xylene (I) to 2-methyl-3-nitrobenzoic acid (II) converting II to 2-methyl-3-nitrobenzoyl halide (III), converting III to the novel intermediate 2-methyl-3-nitrobenzophenone (IV), oxidizing IV to 2-benzoyl-6-nitrobenzoic acid (V) and cyclizing V to 1-nitroanthraquinone.
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