乙酰氯 、 (2S,4S,5R,6R)-5-Acetylamino-6-{(S)-[(2R,6S,8R,9R,10S)-9-acetylamino-10-hydroxy-5-oxo-8-((1R,2R)-1,2,3-trihydroxy-propyl)-1,4,7-trioxa-spiro[5.5]undec-2-yl]-hydroxy-methyl}-2,4-dihydroxy-tetrahydro-pyran-2-carboxylic acid methyl ester 以
甲醇 、
溶剂黄146 为溶剂,
生成
(2R,4S,5R,6R)-4-Acetoxy-6-{(S)-acetoxy-[(2R,6S,8R,9R,10S)-10-acetoxy-9-acetylamino-5-oxo-8-((1S,2R)-1,2,3-triacetoxy-propyl)-1,4,7-trioxa-spiro[5.5]undec-2-yl]-methyl}-5-acetylamino-2-chloro-tetrahydro-pyran-2-carboxylic acid methyl ester