Propanedioic acid,[2-(diethoxyphosphinyl)-1-methyl-2-[(S)-(4-methylphenyl)sulfinyl]ethyl]-,diethyl ester 生成 2-[(Z)-2-(Diethoxy-phosphoryl)-1-methyl-vinyl]-malonic acid diethyl ester 、 2-[(E)-2-(Diethoxy-phosphoryl)-1-methyl-vinyl]-malonic acid diethyl ester