乙酸酐 、
7-O-Methylipecoside 以
吡啶 为溶剂,
生成 (4S,5R,6S)-4-((R)-6-Acetoxy-2-acetyl-7-methoxy-1,2,3,4-tetrahydro-isoquinolin-1-ylmethyl)-6-((2S,3R,4S,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-5-vinyl-5,6-dihydro-4H-pyran-3-carboxylic acid methyl ester