Ethyl 6-{[2-cyclopentyl-2-{4-[(5-oxo-2-phenyl-5,6-dihydro-4H-1,3,4-oxadiazin-4-yl)methyl]-phenyl}acetyl]amino}-2-methylhexanoate 在
lithium hydroxide 作用下,
以
甲醇 、
甲基叔丁基醚 为溶剂,
生成 (+)-6-{[2-cyclopentyl-2-{4-[(5-oxo-2-phenyl-5,6-dihydro-4H-1,3,4-oxadiazin-4-yl)methyl]phenyl}-acetyl]amino}-2-methylhexanoic acid