2-氧代-1-[4-(三氟甲基)苄基]-1,2-二氢-3-吡啶羧酸 、
(2S)-2-氨基-5-[(叔丁氧羰基)氨基]戊酸甲酯盐酸盐 、
2-(1h-Benzotriazole-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate 以
三乙胺 为溶剂,
以to give methyl (2S)-5-[(tert-butoxycarbonyl)amino]-2-[({2-oxo-1-[4-(trifluoromethyl)benzyl]-1,2-dihydropyridin-3-yl]carbonyl)amino}pentanoate (0.4 g) as a white solid的产率得到methyl (2S)-5-[(tert-butoxycarbonyl)amino]-2-[({2-oxo-1-[4-(trifluoromethyl)benzyl]-1,2-dihydropyridin-3-yl}carbonyl)amino]pentanoate