Diastereoselective reductive Amination of aryl trifluoromethyl ketones and α-amino esters

被引:51
作者
Hughes, Greg
Devine, Paul N.
Naber, John R.
O'Shea, Paul D.
Foster, Bruce S.
McKay, Daniel J.
Volante, R. P.
机构
[1] Merck Frosst Canada Inc, Proc Res, Kirkland, PQ H9H 3L1, Canada
[2] Merck & Co Inc, Merck Res Labs, Dept Proc Res, Rahway, NJ 07065 USA
关键词
amines; amino acids; diastereoselectivity; fluorine; reduction;
D O I
10.1002/anie.200603745
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Chemical Equation Presented) Reductionist art: Careful choice of the reducing agent in the reductive amination of trifluoromethyl ketones with α-amino esters allows stereoselective access, from the imine formed, to either the R,S or S,S diastereomers of the resulting amino acids. Whereas NaBH4 affords the R,S diastereomers, Zn(BH4)2 affords the S,S diastereomers (see scheme), which can be easily converted into potent cathepsin K inhibitors. © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:1839 / 1842
页数:4
相关论文
共 41 条
[21]   Lewis acid activation of chiral 2-trifluoromethyl-1,3-oxazolidines.: Application to the stereoselective synthesis of trifluoromethylated amines, α- and β-amino acids [J].
Lebouvier, N ;
Laroche, C ;
Huguenot, F ;
Brigaud, T .
TETRAHEDRON LETTERS, 2002, 43 (15) :2827-2830
[22]   Identification of a potent and selective non-basic cathepsin K inhibitor [J].
Li, CS ;
Deschenes, D ;
Desmarais, S ;
Falgueyret, JP ;
Gauthier, JY ;
Kimmel, DB ;
Léger, S ;
Massé, F ;
McGrath, ME ;
McKay, DJ ;
Percival, MD ;
Riendeau, D ;
Rodan, SB ;
Thérien, M ;
Truong, VL ;
Wesolowski, G ;
Zamboni, R ;
Black, WC .
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS, 2006, 16 (07) :1985-1989
[23]   Asymmetric fluorination, trifluoromethylation, and perfluoroalkylation reactions [J].
Ma, JA ;
Cahard, D .
CHEMICAL REVIEWS, 2004, 104 (12) :6119-6146
[24]   Fluorinated peptidomimetics: synthesis, conformational and biological features [J].
Molteni, M ;
Pesenti, C ;
Sani, M ;
Volonterio, A ;
Zanda, M .
JOURNAL OF FLUORINE CHEMISTRY, 2004, 125 (11) :1735-1743
[25]   Stereocontrolled synthesis of ψ[CH(CF3)NH]Gly-peptides [J].
Molteni, M ;
Volonterio, A ;
Zanda, M .
ORGANIC LETTERS, 2003, 5 (21) :3887-3890
[26]   Novel synthesis of α-trifluoromethylated α-amino acid derivatives from γ-hydroxy-α-fluoro-α-trifluoromethyl carboxamides [J].
Ogu, K ;
Matsumoto, S ;
Akazome, M ;
Ogura, K .
ORGANIC LETTERS, 2005, 7 (04) :589-592
[27]   DESIGN OF CHIRAL DERIVATIZING AGENTS FOR CHROMATOGRAPHIC RESOLUTION OF OPTICAL ISOMERS - ASYMMETRIC SYNTHESIS OF SOME CHIRAL FLUOROALKYLATED AMINES [J].
PIRKLE, WH ;
HAUSKE, JR .
JOURNAL OF ORGANIC CHEMISTRY, 1977, 42 (14) :2436-2439
[28]  
Prakash G. K. S., 2001, ANGEW CHEM, V113, P609
[29]   Asymmetric synthesis of trifluoromethylated allylic amines using α,β-unsaturated N-tert-butanesulfinimines [J].
Prakash, GKS ;
Mandal, M ;
Olah, GA .
ORGANIC LETTERS, 2001, 3 (18) :2847-2850
[30]  
Prakash GKS, 2001, ANGEW CHEM INT EDIT, V40, P589, DOI 10.1002/1521-3773(20010202)40:3<589::AID-ANIE589>3.0.CO