发明人郭海燕,罗永刚,周伟. "Method for the Synthesis of 7-Isopentyl-3-methyl-8-(propylamino)-3,7-dihydro-1H-purine-2,6-dione" [P]. 中国发明专利, 专利号 CN 115960746 B, 授权公告日 2016-06-18.
发明人沈红梅,钱学锋,胡光. "A Process for Preparing High-Purity 7-Isopentyl-3-methyl-8-(propylamino)-3,7-dihydro-1H-purine-2,6-dione" [P]. 中国发明专利, 专利号 CN 113444809 A, 授权公告日 2016-07-14.
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