[(1S,4aR,5R,7R,7aS)-7-hydroxy-7-methyl-1-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4a,5,6,7a-tetrahydro-1H-cyclopenta[c]pyran-5-yl] (2E,4E)-3-methyl-5-[(1R,3S,6R)-1,3,6-trihydroxy-2,2,6-trimethylcyclohexyl]penta-2,4-dienoate 生成
sec-hydroxyaeginetic acid monomethyl ester