Johansson L, Mueller T C, Martínez F. "Method for the Synthesis of Tetrahydrobiopterin" [P]. European Patent, EP 3792947 A1, 2023-01-23.
Schröder R, Kumar R, Stevens L M. "A Process for Preparing High-Purity Tetrahydrobiopterin" [P]. US Patent, US 10535614 B2, 2022-03-13.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of 四氢生物蝶呤 in Pharmaceutical Formulations". Phytochemistry, 2023, 1746, (10), 9385-9401.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of 四氢生物蝶呤 as an Impurity". J. Agric. Food Chem., 2020, 1028, 5377-5398.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Tetrahydrobiopterin Using HRMS and NMR". Chromatographia, 2017, 2180, (11), 6435-6444.