N-(2,3,4,6-Tetra-O-pivaloyl-β-D-galactopyranosyl)-3(S)-amino-1(E)-(2-nitrophenyl)-1,5-hexadiene 在
四氯化钛 作用下,
以
甲苯 为溶剂,
以96%的产率得到2,2-Dimethyl-propionic acid (1R,2S,3R)-1-[(1S,2R)-1,3-bis-(2,2-dimethyl-propionyloxy)-2-hydroxy-propyl]-2-(2,2-dimethyl-propionyloxy)-3-[(E)-3-(2-nitro-phenyl)-prop-2-en-(E)-ylideneamino]-hex-5-enyl ester