We confirm the absolute configuration of the two enantiomers by the single-crystal X-ray structure analysis, The absolute configuration of the levo- and dextro-meptazinol is respectively S and R.

• 通过L-DBTA和D-DBTA美普他酚的单晶X衍射确定了左旋和右旋美普他酚的绝对构型分别为S和R。