Efficient macrocyclization by means of 2-nitrobenzenesulfonamide and total synthesis of lipogrammistin-A
摘要:
Synthesis of medium- and large-sized cyclic amines using alkylation with 2-nitrobenzenesulfonamides is described. Using either conventional alkylation procedures or Mitsunobu conditions, the cyclization reaction proceeded in a highly efficient manner. The usefulness of this methodology has been fully demonstrated in the total synthesis of lipogrammistin-A (9), an 18-membered cyclic polyamine. (C) 2002 Published by Elsevier Science Ltd.
Efficient macrocyclization by means of 2-nitrobenzenesulfonamide and total synthesis of lipogrammistin-A
摘要:
Synthesis of medium- and large-sized cyclic amines using alkylation with 2-nitrobenzenesulfonamides is described. Using either conventional alkylation procedures or Mitsunobu conditions, the cyclization reaction proceeded in a highly efficient manner. The usefulness of this methodology has been fully demonstrated in the total synthesis of lipogrammistin-A (9), an 18-membered cyclic polyamine. (C) 2002 Published by Elsevier Science Ltd.
Process for the preparation of optically active chiral amines
申请人:Lonza AG
公开号:EP1818411A1
公开(公告)日:2007-08-15
The present invention relates to the production of optically pure secondary amines, which can be used as intermediate products in a synthesis of for instance pharmaceutical products.
本发明涉及光学纯的仲胺的生产,这些仲胺可用作合成医药产品等的中间产品。
Process for preparation of optically active amines by optical resolution of racemic amines employing a bacterial omega-transaminase
申请人:Lonza AG
公开号:EP1897956A1
公开(公告)日:2008-03-12
The present invention relates to the production of optically active amines, which can be used as intermediate products in a synthesis of for instance pharmaceutical products.
本发明涉及光学活性胺的生产,这种胺可用作合成医药产品等的中间产品。
A process for the identification and preparation of a (R)-specific omega-transaminase
申请人:Lonza AG
公开号:EP2862938A2
公开(公告)日:2015-04-22
The present invention relates to processes for the screening, preparation and characterization of (R)-selective ω-transaminases, to transaminases obtained thereby and their uses in various transamination processes.