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参考文献:生物催化形式的反马尔科夫尼科夫加氢胺化和芳烃的水合
标题:生物催化形式的反马尔科夫尼科夫加氢胺化和芳烃的水合
摘要:基于涉及酶级联反应的两个概念,实现了生物催化抗马尔科夫尼科夫烯烃的水合和水合反应:环氧化-异构化-水合胺化和环氧化-异构化-水合还原.的大肠杆菌菌株共表达苯乙烯单加氧酶(smo),苯乙烯氧化物异构酶(soi),ω转氨酶(cvta)和丙氨酸脱氢酶(aladh)催化的12个的芳烯烃加氢胺化,得到高的转化率相应的有价值末端胺(许多>=86%)和专有的抗马尔可夫尼科夫选择性(> 99:1).另一株大肠杆菌共表达smo,Soi和苯乙醛还原酶(par)的菌株以高转化率(许多>=80%)和非常高的抗马尔科夫尼科夫选择性(> 99:1)催化12种芳基烯烃水合为相应的有用末端醇.重要的是,发现soi可将手性环氧化物立体选择性异构化为手性醛,从而为酶法环氧化物重排提供了一些见识.利用这种立体选择性重排,高对映选择性的抗马尔科夫尼科夫水合和水合反应可将α-甲基苯乙烯以84-81%的转化率(97-92%ee)转化为相应的(S)-胺和(S)-醇.,
Doi:10.1021/acscatal.7B01464
专利信息
专利号:US-5977301-A
优先权日:1992-09-24
标题 :Synthesis of N-substituted oligomers
发明人:ZUCKERMAN RONALD N; KERR JANICE M; KENT STEPHEN B H; MOOS WALTER H; SIMON REYNA J; GOFF DANE A
权利人:CHIRON CORP
摘要:A solid-phase method for the synthesis of N-substituted oligomers, such as poly (N-substituted glycines) (referred to herein as poly NSGs) is used to obtain oligomers, such as poly NSGs of potential therapeutic interest which poly NSGs can have a wide variety of side-chain substituents. Each N-substituted glycine monomer is assembled from two 'sub-monomers' directly on the solid support. Each cycle of monomer addition consists of two steps: (1) acylation of a secondary amine bound to the support with an acylating agent comprising a leaving group capable of nucleophilic displacement by -NH2, such as a haloacetic acid, and (2) introduction of the side-chain by nucleophilic displacement of the leaving group, such as halogen (as a resin-bound alpha -haloacetamide) with a sufficient amount of a second sub-monomer comprising an -NH2 group, such as a primary amine, alkoxyamine, semicarbazide, acyl hydrazide, carbazate or the like. Repetition of the two step cycle of acylation and displacement gives the desired oligomers. The efficient synthesis of a wide variety of oligomeric NSGs using automated synthesis technology of the present method makes these oligomers attractive candidates for the generation and rapid screening of diverse peptidomimetic libraries. The oligomers of the invention, such as N-substituted glycines (i.e. poly NSGs) disclosed here provide a new class of peptide-like compounds not found in nature, but which are synthetically accessible and have been shown to possess significant biological activity and proteolytic stability.
专利号:EP-0671928-B1
优先权日:1992-09-24
标题 :Synthesis of n-substituted oligomers
发明人:ZUCKERMANN RONALD N; KERR JANICE M; KENT STEPHEN BRIAN HENRY; MOOS WALTER H; SIMON REYNA J; GOFF DANE A
权利人:CHIRON CORP
摘要:Poly N-substituted Glycines (poly NSGs), wherein the substituents bear purine or pyrimidine bases (R<9>) every second glycine: In addition, a solid phase method for the synthesis of N-substituted oligomers of more general structures is disclosed.The poly NSGs obtainable by this method can have a wide variety of side-chain substituents. Each N-substituted glycine monomer is assembled from two 'sub-monomers' directly on the solid support. Each cycle of monomer addition consists of two steps: (1) acylation of a secondary amine bound to the support with an acylating agent comprising a leaving group capable of nucleophilic displacement by -NH2, such as a haloacetic acid, and (2) introduction of the side-chain by nucleophilic displacement of the leaving group, such as halogen (as a resin-bound alpha -haloacetamide) with a sufficient amount of a second sub-monomer comprising an -NH2 group, such as a primary amine, alkoxyamine, semicarbazide, acyl hydrazide, carbazate or the like. Repetition of the two step cycle of acylation and displacement gives the desired oligomers. The efficient synthesis of a wide variety of oligomeric NSGs using the automated synthesis technology of the present method makes these oligomers attractive candidates for the generation and rapid screening of diverse peptidomimetic libraries. The oligomers of the invention, such as N-substituted glycines (i.e. poly NSGs) disclosed here provide a new class of peptide-like compounds not found in nature, but which are synthetically accessible and have been shown to possess significant biological activity and proteolytic stability.
专利号:US-5877278-A
优先权日:1992-09-24
标题:Synthesis of N-substituted oligomers
发明人:ZUCKERMANN RONALD N; GOFF DANE A; NG SIMON; SPEAR KERRY; SCOTT BARBARA O; SIGMUND AARON C; GOLDSMITH RICHARD A; MARLOWE CHARLES K; PEI YAZHONG; RICHTER LUTZ; SIMON REYNA
权利人:CHIRON CORP
摘要:A solid-phase method for the synthesis of N-substituted oligomers, such as poly (N-substituted glycines) (referred to herein as poly NSGs) is used to obtain oligomers, such as poly NSGs of potential therapeutic interest which poly NSGs can have a wide variety of side-chain substituents. Each N-substituted glycine monomer is assembled from two 'sub-monomers' directly on the solid support. Each cycle of monomer addition consists of two steps: (1) acylation of a secondary amine bound to the support with an acylating agent comprising a leaving group capable of nucleophilic displacement by -NH2, such as a haloacetic acid, and (2) introduction of the side-chain by nucleophilic displacement of the leaving group, such as halogen (as a solid support-bound alpha -haloacetamide) with a sufficient amount of a second sub-monomer comprising an -NH2 group, such as a primary amine, alkoxyamine, semicarbazide, acyl hydrazide, carbazate or the like. Repetition of the two step cycle of acylation and displacement gives the desired oligomers. The efficient synthesis of a wide variety of oligomeric NSGs using automated synthesis technology of the present method makes these oligomers attractive candidates for the generation and rapid screening of diverse peptidomimetic libraries. The oligomers of the invention, such as N-substituted glycines (i.e. poly NSGs) disclosed here provide a new class of peptide-like compounds not found in nature, but which are synthetically accessible and have been shown to possess significant biological activity and proteolytic stability. Combinatorial libraries of cyclic compounds are disclosed wherein the cyclic compounds are comprised of at least one ring structure derived from cyclization of a peptoid backbone. The diversity of product compounds is generated by the sequential addition of substituted submonomers. The combinatorial library includes 10 or more, preferably 100 or more, and more preferably 1,000 or more distinct and different compounds. The library includes each of the product compounds in retrievable and analyzable amounts and preferably includes at least one biologically active compound. Methods of synthesizing the combinatorial libraries and assay devices produced using the libraries are disclosed as is methodology for screening for and obtaining biologically active cyclic organic compounds.
专利号:WO-2014202765-A1
优先权日:2013-06-21
标题 :Preparation of chiral 1-methyl-2,3,4,5-1h-benzodiazepines via asymmetric reduction of alpha-substituted styrenes
发明人:STAVBER GAJ; GAZIC SMILOVIC IVANA; CLUZEAU JEROME; RICHTER FRANK
权利人:LEK PHARMACEUTICALS
摘要:The present invention provides an asymmetric and economic synthesis of 8-chloro-1-methyl-2,3,4,5-tetrahydro-1 H-benzo[d]azepine via novel intermediates applying an asymmetric enzymatic, biomimetic or catalytic reduction. The present invention also provides a novel green asymmetric catalytic reduction adapted for an aqueous medium to be applied in the synthesis of 8-chloro-1-methyl-2,3,4,5-tetrahydro-1 H-benzo[d]azepine or novel intermediates.
专利号:EP-0671928-A4
优先权日:1992-09-24
标 题 :SYNTHESIS OF N-SUBSTITUTED OLIGOMERS.
专利号:EP-0789577-A1
优先权日:1995-06-07
标 题:Synthesis of n-substituted oligomers