3-(2-Acetoxy-ethyl)-6-methoxy-3,6-dihydro-pyran-2,2-dicarboxylic acid diethyl ester 生成
(2S,3S,6R)-3-(2-Acetoxy-ethyl)-6-methoxy-3,6-dihydro-2H-pyran-2-carboxylic acid (1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyl ester 、 (2S,3R,6S)-3-(2-Acetoxy-ethyl)-6-((1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyloxy)-3,6-dihydro-2H-pyran-2-carboxylic acid (1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyl ester