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发明人孙丽萍,郭海燕,陈志强. "A Process for Preparing High-Purity 1-(4-Ethylphenyl)-6-mercapto-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one" [P]. 中国发明专利, 专利号 CN 115843475 B, 授权公告日 2016-10-04.
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