Enantioselective Transfer Aminoallylation: Synthesis of Optically Active Homoallylic Primary Amines
作者:Masaharu Sugiura、Chieko Mori、Shū Kobayashi
DOI:10.1021/ja064106r
日期:2006.8.1
A camphorquinone-derived chiral homoallylic amine was found to react with various aldehydes via imine formation and asymmetric 2-azonia-Cope rearrangement to give opticallyactive homoallylic primary amines. A practical level of enantioselectivity with high functional group tolerance has been attained in this transformation.
The invention belongs to the field of biotechnology. It concerns a biocatalyst, i.e. a dead or living microorganism or a polypeptide, preferably in isolated form, which exhibits acylase enzymatic activity without lipase- or esterase-activity. The biocatalyst is capable of stereoselectively hydrolysing a racemic acylamide which has an aliphatic acyl residue and which is not a derivative of a natural amino acid.
[EN] BIOCATALYSTS WITH AMINE ACYLASE ACTIVITY<br/>[FR] BIOCATALYSEURS POSSEDANT UNE ACTIVITE AMINE ACYLASE
申请人:NOVARTIS AG
公开号:WO1997041214A1
公开(公告)日:1997-11-06
(EN) The invention belongs to the field of biotechnology. It concerns a biocatalyst, i.e. a dead or living microorganism or a polypeptide, preferably in isolated form, which exhibits acylase enzymatic activity without lipase- or esterase-activity. The biocatalyst is capable of stereoselectively hydrolysing a racemic acylamide which has an aliphatic acyl residue and which is not a derivative of a natural amino acid.(FR) L'invention appartient au domaine de la biotechnologie et elle concerne un biocatalyseur, c'est à dire un micro-organisme mort ou vivant, ou un polypeptide, de préférence sous forme isolée, qui démontre une activité enzymatique acylase, sans activité lipase ou estérase. Ce biocatalyseur peut hydrolyser de manière stéréosélective un acylamide racémique, lequel possède un reste acyle aliphatique et n'est pas un dérivé d'un acide aminé naturel.