重氮甲烷 、 (4S,5R,6S)-4-[(E)-(S)-6-Hydroxy-10-(4-hydroxy-phenyl)-4,8-dioxo-dec-1-enyl]-6-((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-5-vinyl-5,6-dihydro-4H-pyran-3-carboxylic acid 以
甲醇 、
乙醚 为溶剂,
反应 2.0h,
生成
(4S,5R,6S)-4-[(E)-(S)-6-Hydroxy-10-(4-methoxy-phenyl)-4,8-dioxo-dec-1-enyl]-6-((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-5-vinyl-5,6-dihydro-4H-pyran-3-carboxylic acid methyl ester