The absolute configurations of the title compounds were determined by X-ray structural analysis of one of the (-)-camphanic acid esters of the hydroxymethyl-oxepin (=10a) and the conversion of (M)-(=10a) to (+)-(M)-(=10b) and (+)-(P)-(=2b).
通过对羟甲基-oxepin(= 10a)的(-)-
山梨酸酯之一进行X射线结构分析,以及(M)-(= 10a)到(+)的转化,确定标题化合物的绝对构型)-(M)-(= 10b)和(+)-(P)-(= 2b)。