常见例句Inversion of the original stereocenter via an efficient intramolecular SN2 amination affords the piperidine core of IS811, a potent CCR3 antagonist. 倒置原立体高效利用氮的分子内2核心is811胺哌啶阻滞、烈性上CCR3拮抗. 返回 stereocenter