2-O,2-O'-diethyl 4-O-methyl (4S,5S)-5-[[(2R,3R)-3-(1,3-benzodioxol-5-yl)-5-oxopentan-2-yl]-(naphthalen-2-ylmethyl)carbamoyl]-1,3-dioxolane-2,2,4-tricarboxylate 在
lithium hydroxide 、 sodium hydride 作用下,
生成 (4S,5S)-5-[((E)-(1R,2R)-2-Benzo[1,3]dioxol-5-yl-5-benzooxazol-2-yl-1-methyl-pent-4-enyl)-naphthalen-2-ylmethyl-carbamoyl]-[1,3]dioxolane-2,2,4-tricarboxylic acid