发明人徐明华,陈志强,张德明. "Method for the Synthesis of Ethyl 4-chloro-8,9-dihydro-5H-pyrimido[4,5-d]azepine-7(6H)-carboxylate" [P]. 中国发明专利, 专利号 CN 108547729 B, 授权公告日 2025-12-09.
发明人钱学锋,唐晓军,郑宇鹏. "A Process for Preparing High-Purity Ethyl 4-chloro-8,9-dihydro-5H-pyrimido[4,5-d]azepine-7(6H)-carboxylate" [P]. 中国发明专利, 专利号 CN 108317675 B, 授权公告日 2025-03-26.
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