发明人黄志刚,韩伟,马晓峰. "Method for the Synthesis of 9-Methyl-9H-purine-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116964347 A, 授权公告日 2018-01-19.
Stevens L M, Chen K W, Kumar R. "A Process for Preparing High-Purity 9-Methyl-9H-purine-6-carboxylic acid" [P]. US Patent, US 10357844 B2, 2022-09-24.
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