3-N-(tert-butoxycarbonyl)amino-4-oxo-4-[([1-(1-oxotridecyl)-2-piperidinyl]methyl)amino]butanoic acid phenylmethyl ester 以
1,4-二氧六环 、
盐酸 、
sodium hydroxide 为溶剂,
以1.79 grams (83%)的产率得到3-amino-4-oxo-4-[([1-(1-oxotridecyl)-2-piperidinyl]methyl)amino]butanoic acid phenylmethyl ester