enantiomericallyCOCA²⁸⁰¹³⁶⁺⁵ 基本例句 🌏对映体 Chiral epoxides are versatile intermediates that can be readily converted into a wide variety of enantiomerically pure compounds by means of regio- and stereo- selective ring opening reactions. 手性环氧化物是用途很广的中间体，通过区域和立体选择性开环反应，手性环氧化物能转化为多种对映纯的手性化合物。 fabiao