DEMATTEI JOHN,BARNETT BRADLEY R.,LEONARD JOHN,SHAKYA SAGAR,NICHOLS PAUL J.,HACHE BRUNO P.,EVANS MATTHEW CHARLES,FORD JAMES GAIR
申请号：
IN9781/DELNP/2007
公开号：
IN270067B
申请日:
2007.12.17
申请国别(地区):
IN
年份:
2015
代理人:
摘要：
Provided are methods for the synthesis of heterocyclic compounds such as benzimidazole carboxylic acid core structures having Formula Ia-2 and their synthetic intermediates: wherein X1, X2, X5, R1, R2 and R4 are as defined herein. Compounds of Formula Ia-2 and their synthetic intermediates can be used to prepare heterocyclic derivatives such as benzimidazole derivatives.
