发明人张德明,沈红梅,朱建伟. "Method for the Synthesis of 7-Isopentyl-3-methyl-8-(2-(4-nitrobenzylidene)hydrazineyl)-3,7-dihydro-1H-purine-2,6-dione" [P]. 中国发明专利, 专利号 CN 110127911 B, 授权公告日 2015-07-08.
发明人马晓峰,孙丽萍,唐晓军. "A Process for Preparing High-Purity 7-Isopentyl-3-methyl-8-(2-(4-nitrobenzylidene)hydrazineyl)-3,7-dihydro-1H-purine-2,6-dione" [P]. 中国发明专利, 专利号 CN 111207638 B, 授权公告日 2021-03-25.
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