发明人周伟,沈红梅,钱学锋. "Method for the Synthesis of 3,4-Dihydro-2H-pyridazino[4,5-b][1,4]oxazin-8(7H)-one" [P]. 中国发明专利, 专利号 CN 109976653 B, 授权公告日 2024-03-20.
Schröder R, Anderson J P, Klinger H. "A Process for Preparing High-Purity 3,4-Dihydro-2H-pyridazino[4,5-b][1,4]oxazin-8(7H)-one" [P]. US Patent, US 10860589 B2, 2017-04-16.
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