发明人沈红梅,钱学锋,韩伟. "Method for the Synthesis of 2-Amino-1-methyl-8-thioxo-8,9-dihydro-1H-purin-6(7H)-one" [P]. 中国发明专利, 专利号 CN 116448263 A, 授权公告日 2020-08-05.
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