ethylamine tetrahydrofuran 、
tert-butyl 4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-oxopiperidine-1-carboxylate 、
氰基硼氢化钠 、
溶剂黄146 在
四氢呋喃 、
甲醇 、
碳酸氢钠 、
氯仿 、
Sodium sulfate-III 、 silica gel 、 tert-Butyl trans(+/-)-4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-(ethylamino)piperidine-1-carboxylate 作用下,
反应 19.0h,
以to obtain 46 mg of the cis isomer of the title compound (42%) as a pale yellow oily substance and 51 mg of the trans isomer of the title compound (46%) as a pale yellow oily substance的产率得到tert-Butyl trans(+/-)-4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-(ethylamino)piperidine-1-carboxylate