(E)-3-carboxy-2,4,4-trimethyl-2-cyclohexen-1-ylidene-acetonitrile 、
(S)-2-amino-3-[4-(2,6-dichloro-benzoylamino)-phenyl]-propionic acid methyl ester hydrochloride salt 在
N,N-二异丙基乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 62.0h,
生成 N-[[(3E)-3-cyanomethylene-2,6,6-trimethyl-1-cyclohexen-1-yl]carbonyl]-4-[(2,6-dichlorobenzoyl)amino]-L-phenylalanine methyl ester 、 methyl (2S)-2-[[(3Z)-3-(cyanomethylidene)-2,6,6-trimethylcyclohexene-1-carbonyl]amino]-3-[4-[(2,6-dichlorobenzoyl)amino]phenyl]propanoate