52505-64-3

Upstream product

• 54364-12-4 4-methyl-6-phenyl-2-thioxo-1,2-dihydro-pyridine-3-carbonitrile 
• 105-39-5 chloroacetic acid ethyl ester 
• 54364-12-4 4-methyl-6-phenyl-2-thioxo-1,2-dihydro-pyridine-3-carbonitrile 
• 96517-64-5 ethyl (3-cyano-6-phenyl-4-methylpyridinylthio)acetate 
• 109-73-9 N-butylamine 
• 14091-94-2 3-morpholino-1-phenylbut-2-en-1-one 
• 105-36-2 ethyl bromoacetate 
• 98-86-2 acetophenone 
• 93-91-4 1-phenylbutan-1,3-dione 
• 18940-23-3 1-(1-morpholino)-1-phenyl-1-buten-3-one 

Downstream Products

• 58327-93-8 3-diacetylamino-4-methyl-6-phenyl-thieno[2,3-b]pyridine-2-carboxylic acid ethyl ester 
• 128918-29-6 3-Amino-4-methyl-6-phenyl-thieno<2,3-b>pyridin-2-carbonsaeurehydrazid 
• 118969-90-7 3-(2-Hydroxy-ethyl)-2,9-dimethyl-7-phenyl-3H-pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-one 
• 115919-80-7 3-Amino-4-methyl-6-phenyl-thieno<2,3-b>pyridin-2-carbonsaeureamid 
• 128918-16-1 3-Amino-4-methyl-6-phenyl-thieno<2,3-b>pyridin-2-carbonsaeureamid 
• 145916-77-4 7-phenyl-9-methyl-pyrido[3',2':4,5]thieno[3,2-d]-pyrimidine-4(3H)-one 
• 1581726-34-2 C₁₉H₁₉N₃O₂S 
• 874384-65-3 3-(3-benzoylthioureido)-4-methyl-6-phenyl-thieno[2,3-b]pyridine-2-carboxylic acid ethyl ester 
• 58327-85-8 2-(4-chloro-benzylidene)-4-methyl-6-phenyl-thieno[2,3-b]pyridin-3-one 
• 58327-81-4 4-methyl-6-phenyl-thieno[2,3-b]pyridin-3-ol 
• 58327-97-2 3-acetylamino-4-methyl-6-phenyl-thieno[2,3-b]pyridine-2-carboxylic acid 
• 58327-99-4 N-(4-methyl-6-phenyl-thieno[2,3-b]pyridin-3-yl)-acetamide 
• 119004-50-1 3-(2-Chloro-ethyl)-9-methyl-2,7-diphenyl-3H-pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-one 
• 119004-46-5 3-(2-Chloro-ethyl)-2,9-dimethyl-7-phenyl-3H-pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-one 

Relevant academic research and scientific papers

Discovery and structure-activity relationships study of novel thieno[2,3-b]pyridine analogues as hepatitis C virus inhibitors

Current treatment for hepatitis C is barely satisfactory, there is an urgent need to develop novel agents for combating hepatitis C virus infection. This study discovered a new class of thieno[2,3-b]pyridine derivatives as HCV inhibitors. First, a hit compound characterized by a thienopyridine core was identified in a cell-based screening of our privileged small molecule library. And then, structure activity relationship study of the hit compound led to the discovery of several potent compounds without obvious cytotoxicity in vitro (12c, EC50 = 3.3 μM, SI >30.3, 12b, EC50 = 3.5 μM, SI >28.6, 10l, EC50 = 3.9 μM, SI >25.6, 12o, EC 50 = 4.5 μM, SI >22.2, respectively). Although the mechanism of them had not been clearly elucidated, our preliminary optimization of this class of compounds had provided us a start point to develop new anti-HCV agents.

SUBSTITUTED PYRIDO[3', 2': 4, 5]THIENO[3,2-D]PYRIMIDINES AND PYRIDO[3', 2': 4, 5]FURO[3, 2, D]PYRIMIDINES USED AS INHIBITORS OF THE PDE-4 AND/OR THE RELEASE OF TNFΓ(A)

The invention relates to compounds of general formula (I); 1a, 1 b, 1 c and 1 d. The invention also relates to a method for the production thereof, pharmaceutical preparations containing said compounds and/or physiologically compatible salts thereof which can be produced therefrom and/or solvates thereof, and to the pharmaceutical use of said compounds, salts or solvates thereof as inhibitors of phosphodiesterase 4. The compounds comprise active ingredients for the treatment of diseases which can have a positive influence by inhibiting the activity of phosphodiesterase 4 and/or TNFα-release, for example, in lymphocytes, eosinophile and basophile granulocytes, macrophages and mastocytes.

SUBSTITUTED PYRIDO[3',2':4,5]THIENO[3,2-D]PYRIMIDINE-2,4(1 H,3H)-DIONES AND -4(3H)-ONES, SUBSTITUTED THIENO[2,3-D:4,5-D']DIPYRIMIDINE-2,4(1 H,3H)-DIONES AND -4(3H)-ONES, SUBSTITUTED PYRIDO[3',2':4,5]FURO[3,2-D]PYRIMIDINE-2,4(1 H,3H)-DIONES AND -4(3H)-ONES, AND SUBSTITUTED FURO[2,3-D:4,5-D']DIPYRIMIDINE-2,4(1 H,3H)-DIONES AN

The invention relates to novel pyrido[3',2':4,5]thieno[3,2-d]pyrimidine-2,4(1 H,3H)-diones and -4(3H)-one (X=C-H, Y=S), thieno[2,3-d:4,5-d']dipyrimidine-2,4(1 H,3H)-diones and -4(3H)-one (X=N, Y=S), in addition to pyrido[3',2':4,5]furo[3,2-d]pyrimidine-2,4(1 H,3H)-diones and -4(3H)-one (X=C-H, Y=0) and furo[2,3-d:4,5-d']dipyrimidine-2,4(1 H,3H)-diones and -4(3H)-one (X=N, Y=O) of general formulae 1a and 1b. The invention also relates to a method for the production thereof, pharmaceutical preparations containing said compounds and/or tautomers thereof and physiologically compatible salts which can be produced therefrom and/or solvates thereof, in addition to the pharmaceutical use of said compounds, tautomers thereof, salts or solvates, as inhibitors of TNFa-release.

Synthesis of novel heterocyclic compounds for antitumor and radioprotective activities

Some novel pyridothienoxazine (5); pyridothienopyrimidines (6), (8), (9), (14); pyridothienoimidazole (16); isothiazolopyridine (17), and pyridoisothiazolopyrimidines (18-20) were synthesized. The structural assignment of the prepared compounds were based on microanalytical and spectroscopic evidences. Some prepared compounds were tested in vitro for their antitumor and radioprotective activities. Compounds (7), (12), (17) and (19) showed significant activities against EAC cells, at a concentration of 250μg/ml; while the isothiazolopyridine (17) exhibited radioprotective activity.