82.8

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1.

For well-defined 2-point code types, the concordances was 82 . 8%.

给以限制性定义以后，两点编码符合率达到 82 .

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2.

DMAP as catalyst , the postprocessing steps were simplified with the method of pouring the reaction solution into ice, the yield was 82. 8%;

酰化反应用 DMAP 作催化剂，采用向碎冰上倾倒反应液使产物析出的后处理方法，收率 82.8%；