4-Acetoxy-3,5-dichloro-2-methoxy-6-methyl-benzoic acid (2R,3R,4R,6S)-4-((2S,4S,5R,6S)-4-acetylamino-5-methoxy-4,6-dimethyl-tetrahydro-pyran-2-yloxy)-6-methoxy-2-methyl-tetrahydro-pyran-3-yl ester 在
ammonium hydroxide 作用下,
以
甲醇 为溶剂,
反应 1.0h,
以85%的产率得到methyl 3-O-(3-acetamido-2,3,6-trideoxy-3-C-methyl-4-O-methyl-α-L-arabino-hexopyranosyl)-4-O-(3,5-dichloro-4-hydroxy-2-methoxy-6-methylbenzoyl)-2,6-dideoxy-α-D-arabino-hexopyranoside