Transition-metal complex-catalyzed reductive N-heterocyclization: synthesis of 4(3H)-quinazolinone derivatives from N-(2-nitrobenzoyl)amides
摘要:
Several ruthenium and platinum complexes smoothly catalyze the reductive N-heterocyclization of N-(2-nitrobenzoyl)amides under carbon monoxide pressure to afford the corresponding 4(3H)-quinazolinone derivatives, including some quinazolinone alkaloids, in good yields.
Process for the regioselective n-alkylation of quinazolinones
申请人:American Cyanamid Company
公开号:US05610301A1
公开(公告)日:1997-03-11
A process for the regioselective N-alkylation of 2-alkyl-5,6,7 or 8-substituted-4(3H)-quinazolinones in the presence of lithium salts.
在锂盐存在下对2-烷基-5,6,7或8-取代-4(3H)-喹唑啉酮进行区域选择性N-烷基化的方法。
PLATELET ADP RECEPTOR INHIBITORS
申请人:SCARBOROUGH ROBERT M.
公开号:US20080194597A1
公开(公告)日:2008-08-14
Novel compounds of formulae (I) to (VIII), which more particularly include sulfonylurea derivatives, sulfonylthiourea derivatives, sulfonylguanidine derivatives, sulfonylcyanoguanidine derivatives, thioacylsulfonamide derivatives, and acylsulfonamide derivatives which are effective platelet ADP receptor inhibitors. These derivatives may be used in various pharmaceutical compositions, and are particularly effective for the prevention and/or treatment of cardiovascular diseases, particularly those diseases related to thrombosis. The invention also relates to a method for preventing or treating thrombosis in a mammal comprising the step of administering a therapeutically effective amount of a compound of formulae (I) to (VIII), or a pharmaceutically acceptable salt thereof.