3,5-dichlorobenzyl 4-(aminomethyl)piperidine-1-carboxylate 、
熊去氧胆酸 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,
反应 16.25h,
以36%的产率得到3,5-dichlorobenzyl-4-(((4R)-4-((3R,5S,7S,8R,9S,10S,13R,14S,17R)-3,7-dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanamido)methyl)piperidine-1-carboxylate