Asymmetric Synthesis of d-Proline, d-Pipecolic Acid, (2R,3S,4R)-3,4-Dihydroxyproline, and 1,4-Dideoxy-1,4-imino-d-talitol from a Common Precursor
作者:Shital Chattopadhyay、Jyoti Mukherjee
DOI:10.1055/s-0034-1378452
日期:——
(2R)-proline, (2R,3S,4R)-3,4-dihydroxyproline, and the known glycosidase inhibiting azasugar 1,4-dideoxy-1,4-imino-d-talitol from a common starting material namely (R)-cyclohexylideneglyceraldehyde in good overall yields. Methodology involving stereoselective aza-Michael addition and ring-closing metathesis as key steps has been developed for the preparation of (2R)-pipecolic acid, (2R)-proline, (2R,3S,4R)-3,4-dihydroxyproline
摘要 已经开发出以立体选择性aza-Michael加成法和闭环复分解为关键步骤的方法,用于制备(2 R)-哌酸,(2 R)-脯氨酸,(2 R,3 S,4 R)-3, 4- dihydroxyproline,和已知的糖苷酶抑制azasugar 1,4-二脱氧-1,4-亚氨基- d -talitol从一个共同的起始原料即([R在良好的总收率)-cyclohexylideneglyceraldehyde。 已经开发出以立体选择性aza-Michael加成法和闭环复分解为关键步骤的方法,用于制备(2 R)-哌酸,(2 R)-脯氨酸,(2 R,3 S,4 R)-3, 4- dihydroxyproline,和已知的糖苷酶抑制azasugar 1,4-二脱氧-1,4-亚氨基- d -talitol从一个共同的起始原料即([R在良好的总收率)-cyclohexylideneglyceraldehyde。