作者:Vincent J Colandrea、Elizabeth M Naylor
DOI:10.1016/s0040-4039(00)01400-3
日期:2000.10
A regioselective alkylation of naphthyridines 4a–d, through the action of ethylchloroformate and benzylstannane 5, afforded the benzyl substituted dihydronaphthyridines 3a–d. These key intermediates 3a–d were transformed into the desired targets 2a–d in seven steps.
萘啶4a - d的区域选择性烷基化,通过氯甲酸乙酯和苄基锡烷5的作用,得到苄基取代的二氢萘啶3a - d。这些关键中间体3a – d通过七个步骤转化为所需的目标2a – d。