Martínez F, Nielsen H, Kowalski A. "Method for the Synthesis of (1S,3R,4R)-3-[(TERT-BUTOXYCARBONYL)AMINO]-4-[(METHYLSULFONYL)OXY]CYCLOHEXANECARBOXYLIC ACID ETHYL ESTER" [P]. European Patent, EP 3980923 A1, 2018-11-13.
发明人刘建华,黄志刚,赵玉洁. "A Process for Preparing High-Purity (1S,3R,4R)-3-[(TERT-BUTOXYCARBONYL)AMINO]-4-[(METHYLSULFONYL)OXY]CYCLOHEXANECARBOXYLIC ACID ETHYL ESTER" [P]. 中国发明专利, 专利号 CN 110008359 B, 授权公告日 2019-07-25.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of (1S,3R,4R)-3-[(TERT-BUTOXYCARBONYL)AMINO]-4-[(METHYLSULFONYL)OXY]CYCLOHEXANECARBOXYLIC ACID ETHYL ESTER in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2016, 2287, (9), 8056-8069.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of (1S,3R,4R)-3-[(TERT-BUTOXYCARBONYL)AMINO]-4-[(METHYLSULFONYL)OXY]CYCLOHEXANECARBOXYLIC ACID ETHYL ESTER as an Impurity". J. Agric. Food Chem., 2013, 109, 1444-1466.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of (1S,3R,4R)-3-[(TERT-BUTOXYCARBONYL)AMINO]-4-[(METHYLSULFONYL)OXY]CYCLOHEXANECARBOXYLIC ACID ETHYL ESTER Using HRMS and NMR". J. Nat. Prod., 2013, 2123, (11), 7363-7390.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate (1S,3R,4R)-3-[(TERT-BUTOXYCARBONYL)AMINO]-4-[(METHYLSULFONYL)OXY]CYCLOHEXANECARBOXYLIC ACID ETHYL ESTER Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2011, 128, 9721-9741.