methyl (1R,4aS,7aR)-1-hydroxy-1,4a,5,6,7,7a-hexahydrocyclopenta[c]pyran-4-carboxylate 、 methyl (1S,4aS,7aR)-1-hydroxy-1,4a,5,6,7,7a-hexahydrocyclopenta[c]pyran-4-carboxylate 、
乙酰氯 生成
(1S,4aS,7aR)-1-Acetoxy-1,4a,5,6,7,7a-hexahydro-cyclopenta[c]pyran-4-carboxylic acid methyl ester