发明人黄志刚,孙丽萍,赵玉洁. "Method for the Synthesis of 4-Chloropyrido[3,4-d]pyrimidine hydrochloride" [P]. 中国发明专利, 专利号 CN 113010229 B, 授权公告日 2024-01-03.
发明人沈红梅,马晓峰,韩伟. "A Process for Preparing High-Purity 4-Chloropyrido[3,4-d]pyrimidine hydrochloride" [P]. 中国发明专利, 专利号 CN 108136401 B, 授权公告日 2015-04-06.
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