N-{[(4aR,4bS,6aS,7S,9aS,9bS,11aR)-4A,6A-二甲基-2-氧代-2,4A,4B,5,6,6A,7,8,9,9A,9B,10,11,11A-十四氢-1H-茚并[5,4-f]喹啉-7-基]羰基}-2-甲基丙氨酸 、
甲胺 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67 %的产率得到(4aR,4bS,6aS,7S,9aS,9bS,11aR)-4a,6a-dimethyl-N-(2-methyl-1-(methylamino)-1-oxopropan-2-yl)-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxamide