kalidiunin 、
乙酸酐 在
吡啶 作用下,
以3.5 mg的产率得到[(2S,3R,4S,5R,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl] (2R,4aR,6aR,6aS,6bR,8aR,9R,10S,12aR,14bS)-10-acetyloxy-2,9-bis(acetyloxymethyl)-2,6a,6b,9,12a-pentamethyl-1,3,4,5,6,6a,7,8,8a,10,11,12,13,14b-tetradecahydropicene-4a-carboxylate