Anderson J P, Klinger H, Mueller T. "Method for the Synthesis of ethyl 2-(6-oxo-4-(piperazin-1-yl)pyridazin-1(6H)-yl)acetate" [P]. US Patent, US 10067110 B2, 2015-11-08.
发明人钱学锋,李文辉,高志强. "A Process for Preparing High-Purity ethyl 2-(6-oxo-4-(piperazin-1-yl)pyridazin-1(6H)-yl)acetate" [P]. 中国发明专利, 专利号 CN 110954232 A, 授权公告日 2017-02-07.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of 2-(6-氧代-4-(哌嗪-1-基)哒嗪-1(6H)-基)乙酸乙酯 in Pharmaceutical Formulations". Sci. Total Environ., 2025, 1083, 2236-2241.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of 2-(6-氧代-4-(哌嗪-1-基)哒嗪-1(6H)-基)乙酸乙酯 as an Impurity". Molecules, 2016, 833, 8743-8761.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of ethyl 2-(6-oxo-4-(piperazin-1-yl)pyridazin-1(6H)-yl)acetate Using HRMS and NMR". Environ. Sci. Technol., 2015, 81, (5), 5849-5862.