tert-butyl 3-allyl-2-((tert-butoxycarbonyl)imino)-6-(4-methoxyphenyl)-3,4-dihydropyrimidine-1(2H)-carboxylate 在
N-溴代丁二酰亚胺(NBS) 作用下,
以
二氯甲烷 为溶剂,
以89%的产率得到tert-butyl 3-allyl-5-bromo-2-((tert-butoxycarbonyl)imino)-6-(4-methoxyphenyl)-3,4-dihydropyrimidine-1(2H)-carboxylate