6-O-benzoylchlorogenin 3-O-(3,6-di-O-benzoyl-β-D-glucopyranoside) 、
Acetic acid (2S,3R,4R,5S,6S)-4-acetoxy-5-methoxy-6-methyl-2-(2,2,2-trichloro-acetimidoyloxy)-tetrahydro-pyran-3-yl ester 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
反应 8.33h,
生成 [(2R,3R,4S,5R,6R)-4-benzoyloxy-6-[(1R,2S,4S,5'R,6R,7S,8R,9S,12S,13R,16S,18S,19S)-19-benzoyloxy-5',7,9,13-tetramethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icosane-6,2'-oxane]-16-yl]oxy-3,5-bis[[(2S,3R,4R,5S,6S)-3,4-diacetyloxy-5-methoxy-6-methyloxan-2-yl]oxy]oxan-2-yl]methyl benzoate