A facile and general synthesis of 2,4‐Di‐ and 2,4,7‐trisubstituted thieno[2,3‐c]pyridines
摘要:
Abstractmagnified imageTreatment of 3,5‐dibromo‐ or 3,5‐dichloro‐pyridine‐4‐carboxaldehyde 2 with one equivalent of methyl thioglycolate, followed by exposure to base, provided 4‐bromo‐ or 4‐chloro‐thieno[2,3‐c]pyridine‐2‐carboxylate 4 in good yields. Oxidation of the thieno[2,3‐c]pyridine scaffold such as 7 with mCPBA, followed by treatment with POBr3, introduced a bromine exclusively at the 7‐position of the heterocycle. The 4‐ or 7‐bromide of the thienopyridines readily underwent Suzuki, Stille coupling, and Buchwald amination reactions, to afford 4‐ or 7‐substituted analogs 6 or 11. The 2‐carboxylate of 4b or 12 was smoothly removed through saponification and decarboxylation to furnish 15 or 16. Deprotonation of the thienopyridine at C‐2 position, followed by trapping with trimethyltin chloride, afforded a 2‐stannyl analog, which was readily converted to other C‐2 derivatives via Stille reaction.
Compounds having the formula
1
are useful for inhibiting protein kinases. Also disclosed are compositions which inhibit protein kinases and methods of inhibiting protein kinases in a patient.
3-(PHENYL-ALKOXY)-5-(PHENYL)-PYRIDINE DERIVATIVES AND RELATED COMPOUNDS AS KINASE INHIBITORS FOR THE TREATMENT OF CANCER
申请人:Abbott Laboratories
公开号:EP1463505A2
公开(公告)日:2004-10-06
US6831175B2
申请人:——
公开号:US6831175B2
公开(公告)日:2004-12-14
[EN] KINASE INHIBITORS<br/>[FR] INHIBITEURS DE KINASE
申请人:ABBOTT LAB
公开号:WO2003051366A2
公开(公告)日:2003-06-26
Compounds having the formula (I), are useful for inhibiting protein kinases and for the treatment of cancer. Also disclosed are compositions which inhibit protein kinases and methods of inhibiting protein kinases in a patient.