冷却混合物，结晶产物2，8-二氯-5-氟烟酸（III）以离心分离法得到并干燥。

The mixture was cooled and the crystalline product 2,8-dichloro-5-fluoronicotinic acid (III) was isolated by centrifugation and dried.

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冷却混合物，结晶产物2，8-二氯-5-氟烟酸（III）以离心分离法得到并干燥。

The mixture was cooled and the crystalline product 2,8-dichloro-5-fluoronicotinic acid (III) was isolated by centrifugation and dried.

youdao