13-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)pyrrolidin-2-yl]-1-methoxytridecan-4-one 在
对甲苯磺酸 作用下,
以
吡啶 为溶剂,
生成 [(3aS,4R,6R,6aR)-5-acetyl-6-(13-methoxy-10-oxotridecyl)-2,2-dimethyl-3a,4,6,6a-tetrahydro-[1,3]dioxolo[4,5-c]pyrrol-4-yl]methyl acetate