发明人何建平,王建平,马晓峰. "Method for the Synthesis of 3-Ethyl-1H-purine-2,6(3H,7H)-dione" [P]. 中国发明专利, 专利号 CN 108789550 A, 授权公告日 2023-12-05.
Lefèvre J P, Martínez F, Jørgensen K. "A Process for Preparing High-Purity 3-Ethyl-1H-purine-2,6(3H,7H)-dione" [P]. European Patent, EP 3804775 A1, 2023-09-09.
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