tert-butyl 3-(2-methyl-3-{[(2S,3R)-3-methyl-2-{4-[(5-oxo-2-phenyl-5,6-dihydro-4H-1,3,4-oxadiazin-4-yl)methyl]phenyl}pentanoyl]amino}phenyl)propanoate 在
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
反应 2.5h,
以80%的产率得到3-(2-methyl-3-{[(2S,3R)-3-methyl-2-{4-[(5-oxo-2-phenyl-5,6-dihydro-4H-1,3,4-oxadiazin-4-yl)methyl]phenyl}pentanoyl]amino}phenyl)propanoic acid