Propanedioic acid,[1-[(diethoxyphosphinyl)[(S)-(4-methylphenyl)sulfinyl]methyl]pentyl]-,diethyl ester 生成 2-{1-[1-(Diethoxy-phosphoryl)-meth-(Z)-ylidene]-pentyl}-malonic acid diethyl ester 、 2-{1-[1-(Diethoxy-phosphoryl)-meth-(E)-ylidene]-pentyl}-malonic acid diethyl ester