4-((9aS)-3-(ethoxycarbonyl)-5-oxo-2-{2-[4-(trifluoromethyl)phenyl]ethyl}-7,8,9,9a-tetrahydro-5H-pyrido[2,3-a]pyrrolizin-4-yl)benzoic acid 、
(S)-1-(4-吡啶基)乙胺 在
benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 14.0h,
以48%的产率得到ethyl (9aS)-5-oxo-4-[4-([{(1S)-1-(4-pyridinyl)ethyl}amino]carbonyl)phenyl]-2-{2-[4-(trifluoromethyl)phenyl]ethyl}-7,8,9,9a-tetrahydro-5H-pyrido[2,3-a]pyrrolizine-3-carboxylate