专利号:WO-2007104357-A1 优先权日:2006-03-14 标 题 :Synthesis of amines with catalytic amounts of mild lewis acids 发明人:NUGENT THOMAS CHRISTOPHER; WAKCHAURE VIJAY NARAYAN; EL-SHAZLY MOHAMED MAHMOUD 权利人:UNIV JACOBS BREMEN GMBH; NUGENT THOMAS CHRISTOPHER; WAKCHAURE VIJAY NARAYAN; EL-SHAZLY MOHAMED MAHMOUD 摘要:The invention relates to methods for producing primary, secondary and tertiary amines and corresponding enantiopure or enantioenriched primary or secondary amine products, comprising the steps of reductively aminating a ketone, with a nitrogen auxiliary in the presence of a hydrogenating catalyst and a hydrogenating agent, wherein the reductive animation is performed under the influence of a mild Lewis acid, the mild Lewis acid being present at the onset of the reductive amination in at most 25 mol% of the ketone or the nitrogen auxiliary.
专利号:EP-2019097-A1 优先权日:2007-07-25 标 题 :Process for preparing (alphaS)-alpha-(2-methylpropyl)-2-(1-piperidinyl)benzenemethanamine 发明人:MALLIKARJUNA REDDY KARURU; JAYATI MITRA; SIVAKUMARAN MEENAKSHISUNDERAM; RAMESH DANDALA 权利人:AUROBINDO PHARMA LTD 摘要:The present invention relates to a process for the preparation of (αS)-α-(2-methylpropyl)-2- (1-piperidinyl)benzenemethanamine of Formula I,n nwhich is a key intermediate for the synthesis of Repaglinide.
专利号:US-7041830-B2 优先权日:2003-03-31 标 题 :Process for preparing (RS) 3-methyl-1-(2-piperidinyl phenyl) butyl amine 发明人:KALKOTE UTTAM RAMRAO; GURJAR MUKUND KESHAO; JOSHI SHREERANG VIDYADHAR; KADAM SURESH MAHADEV; MONDKAR HARISH KASHINATH 权利人:COUNCIL SCIENT IND RES 摘要:The Present invention relates to a process for the preparation of (RS) 3-methyl-1-(2-piperidinyl phenyl) butyl amine of formula 1. n n n n n n n n n n (RS) 3-Methyl-1-(2-piperidinyl phenyl butyl amine having formula 1 is an important key intermediate for the synthesis of repaglinide of formula 2 an oral hypoglycemic agent.
专利号:CN-102633750-A 优先权日:2012-03-26 标 题 :One-pot synthesis of repaglinide, a drug for treating diabetes
专利号:WO-2007104359-A1 优先权日:2006-03-14 标 题:Synthesis of amines with ytterbium lewis acids 发明人:NUGENT THOMAS CHRISTOPHER; WAKCHAURE VIJAY NARAYAN 权利人:UNIV JACOBS BREMEN GMBH; NUGENT THOMAS CHRISTOPHER; WAKCHAURE VIJAY NARAYAN 摘要:The invention relates to methods for producing primary, secondary, and tertiary amines and the corresponding enantiopure or enantioenriched primary or secondary amine products from secondary or tertiary amine diastereomers.
专利号:EP-0965591-A1 优先权日:1991-06-21 标 题 :(s)-3-methyl-1-(2-piperidino-phenyl)-1-butylamine, its salts, synthesis and use in the long term therapy of diabetes mellitus
参考标题:Reversal Diastereoselectivity Between The Organomagnesium And Organolithium Reagents On Chiral N-Tert-Butylsulfinylaldimines For The Preparation Of Chiral Amines 作者:Chinnapillai Rajendiran,Periyandi Nagarajan,A. Naidu,P. K. Dubey |发布日期:2014.10.18 摘要:Abstract The Asymmetric Synthesis Of Both The Enantiomer Of Chiral Amines From The Single Chiral Source Of N-Tert-Butylsulfinylaldimines (3) By Simply Changing The Organometallic Reagents Through Diastereoselective Addition. An Efficient Enantioselective Synthesis Of Chiral Amines Including (S)-3-Methyl-1-(2-Piperidin-1-Yl-Phenyl)Butyl Amine (6A), A Key Intermediate To Prepare Antidiabetic Drug Repaglinide