Conclusion the operation is simplified, the yield is raised, the reaction time is shortened and the usage of the reagent is reduced.
结论新工艺简化了操作、提高了收率、缩短了反应时间、减少了试剂的用量。
CONCLUSION the yield is raised, and the reaction time is shortened and the toxic solvent is removed. The procedure developed is suitable for industrial production.
结论新工艺提高了收率、缩短了反应时间、消除了毒性溶剂，适合工业化生产。
Comparing to exist technology, reaction time is shortened efficiently, product yield and purity are better than the best value of the exist technology in this invention.
与现有技术相比，本发明技术方案总的反应时间有效缩短，产品收率和纯度均好于现有技术最佳值。
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。
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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