Park J H, O'Brien P Q, Fischer A B. "一种的合成方法" [P]. US Patent, US 9640527 B2, 2024-07-24.
Stevens L M, Brown S R, Lee S K. "Method for the Synthesis of 1,3-Dimethyl 2-{[(pyridin-3-yl)amino]methylidene}propanedioate" [P]. US Patent, US 9088293 B2, 2022-09-10.
Johnson M A, Kumar R, Stevens L M. "A Process for Preparing High-Purity 1,3-Dimethyl 2-{[(pyridin-3-yl)amino]methylidene}propanedioate" [P]. US Patent, US 9798349 B2, 2021-11-10.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2025, 1614, (5), 6999-7005.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2019, 1078, 1724-1739.