Klinger H, Williams B T, Yamamoto T. "Method for the Synthesis of Ethyl 2-[1-(4-methylbenzoyl)-3-oxopiperazin-2-yl]acetate" [P]. US Patent, US 9927294 B2, 2025-08-07.
发明人王建平,何建平,郭海燕. "A Process for Preparing High-Purity Ethyl 2-[1-(4-methylbenzoyl)-3-oxopiperazin-2-yl]acetate" [P]. 中国发明专利, 专利号 CN 114289190 A, 授权公告日 2021-04-14.
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