Thompson G K, Chen K W, O'Brien P Q. "Method for the Synthesis of ETHYL 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-2-CARBOXYLATE" [P]. US Patent, US 10756315 B2, 2025-12-18.
发明人李文辉,孙丽萍,郭海燕. "A Process for Preparing High-Purity ETHYL 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-2-CARBOXYLATE" [P]. 中国发明专利, 专利号 CN 116683256 A, 授权公告日 2023-02-23.
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