发明人冯建国,郭海燕,张德明. "Method for the Synthesis of Pipenzolate Methylbromide" [P]. 中国发明专利, 专利号 CN 117416788 B, 授权公告日 2021-03-08.
发明人何建平,郭海燕,高志强. "A Process for Preparing High-Purity Pipenzolate Methylbromide" [P]. 中国发明专利, 专利号 CN 112871385 A, 授权公告日 2017-01-11.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2023, 157, (9), 3197-3223.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2010, 1402, 7439-7448.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of Pipenzolate Methylbromide Using HRMS and NMR". Sci. Total Environ., 2018, 1318, (4), 1788-1803.