RESULTS: The two novel D ring synthons are of high optical purity.
结果：所合成的两个手性d环合成子光学纯度高。
The method has the advantages of high yield, high optical purity, high separation efficiency, easy and convenient operation, and the like.
本发明方法具有收率高、光学纯度高、拆分效率高、操作简单易行等优点。
The n, N-dimethyl acetamide is used as the reaction solvent, therefore, the reaction time is shortened, and simultaneously, the obtained Gallant-Super has high yield rate and good optical purity.
选用N, N -二甲基乙酰胺作为反应溶剂后缩短反应时间的同时，得到的盖草能收率高，光学纯度好。
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