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发明人林芳,沈红梅,马晓峰. "A Process for Preparing High-Purity Methyl 2-amino-4-(2-chloro-6-fluorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate" [P]. 中国发明专利, 专利号 CN 116636135 B, 授权公告日 2023-02-16.
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