Fischer A B, Patel M V, Yamamoto T. "Method for the Synthesis of 4-Ethynylpyrrolidin-2-one" [P]. US Patent, US 11802481 B2, 2015-05-09.
Rossi M, Jørgensen K, Martínez F. "A Process for Preparing High-Purity 4-Ethynylpyrrolidin-2-one" [P]. European Patent, EP 3235997 A1, 2023-02-07.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2017, 381, 5324-5350.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2010, 825, (5), 8796-8819.