The Stereoselective Synthesis of 2-Alkyl .gamma.-Keto Acid and Heterocyclic Ketomethylene Peptide Isostere Core Units Using Chiral Alkylation by 2-Triflyloxy Esters
摘要:
A simple and general protocol for the enantioselective preparation of gamma-keto acids and heterocyclic gamma-keto acids which have an alkyl group at C-2 is reported. The alkyl group is introduced by chiral alkylation using a scalemic 2-triflyloxy ester. The alkylation takes place with inversion of configuration and is compatible with a variety of alkyl groups. This methodology is thus well-suited for the preparation of a wide variety of ketomethylene peptide isosteres.
Bel'skii,I.F. et al., Doklady Chemistry, 1963, vol. 152, p. 767 - 769
作者:Bel'skii,I.F. et al.
DOI:——
日期:——
Okawara, Kogyo Kagaku zasshi / Journal of the Society of Chemical Industry, 1954, vol. 57, p. 760
作者:Okawara
DOI:——
日期:——
US4800231A
申请人:——
公开号:US4800231A
公开(公告)日:1989-01-24
Bel'skii,I.F. et al., Journal of general chemistry of the USSR, 1962, vol. 32, p. 1009 - 1013
作者:Bel'skii,I.F. et al.
DOI:——
日期:——
The Stereoselective Synthesis of 2-Alkyl .gamma.-Keto Acid and Heterocyclic Ketomethylene Peptide Isostere Core Units Using Chiral Alkylation by 2-Triflyloxy Esters
作者:Robert V. Hoffman、Hwa-Ok Kim
DOI:10.1021/jo00121a031
日期:1995.8
A simple and general protocol for the enantioselective preparation of gamma-keto acids and heterocyclic gamma-keto acids which have an alkyl group at C-2 is reported. The alkyl group is introduced by chiral alkylation using a scalemic 2-triflyloxy ester. The alkylation takes place with inversion of configuration and is compatible with a variety of alkyl groups. This methodology is thus well-suited for the preparation of a wide variety of ketomethylene peptide isosteres.