反式-3-(甲基氨基)环丁烷-1-醇 、 11-methyl-3,5-dioxo-1
1H-2,6-diaza-1(2,1)-benzo[d]imidazola-4(1,3)-benzenacycloundecaphane-1
7-carboxylic acid 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以65 %的产率得到(E)-N-(3-hydroxycyclobutyl)-N,11-dimethyl-3,5-dioxo-1
2,1
3-dihydro-1
1H-2,6-diaza-1(2,1)-benzo[d]imidazola-4(1,3)-benzenacycloundecaphane-1
7-carboxamide