发明人钱学锋,徐明华,黄志刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115430218 A, 授权公告日 2019-08-04.
发明人陈志强,黄志刚,郑宇鹏. "Method for the Synthesis of Ethyl 1,5-dimethyl-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 108636611 B, 授权公告日 2015-09-12.
Brown S R, Patel M V, Anderson J P. "A Process for Preparing High-Purity Ethyl 1,5-dimethyl-1H-pyrazole-4-carboxylate" [P]. US Patent, US 10662496 B2, 2020-03-14.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2014, 366, 6389-6400.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2012, 983, (11), 624-654.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 1,5-dimethyl-1H-pyrazole-4-carboxylate Using HRMS and NMR". Anal. Methods, 2011, 2063, (5), 4917-4936.