{[4-(4-methylphenoxy)phenyl]formamido}acetic acid 在
N,N-二异丙基乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 1.75h,
生成 (8S)-N-[(4-carbamimidoylthiophen-2-yl)methyl]-7-(2-{[4-(4-methylphenoxy)phenyl]formamido}acetyl)-1,4-dioxa-7-azaspiro[4.4]nonane-8-carboxamide