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发明人高志强,陈志强,何建平. "Method for the Synthesis of 3-Phenyl-2H-benzo[b][1,4]thiazine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114116527 B, 授权公告日 2015-06-07.
发明人郭海燕,唐晓军,韩伟. "A Process for Preparing High-Purity 3-Phenyl-2H-benzo[b][1,4]thiazine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110514806 B, 授权公告日 2017-05-03.
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