Enzymatic nitrile hydrolysis catalyzed by nitrilase ZmNIT2 from maize. An unprecedented β-hydroxy functionality enhanced amide formation
作者:Chandrani Mukherjee、Dunming Zhu、Edward R. Biehl、Rajiv R. Parmar、Ling Hua
DOI:10.1016/j.tet.2006.04.069
日期:2006.6
To explore the synthetic potential of nitrilase ZmNIT2 from maize, the substrate specificity of this nitrilase was studied with a diverse collection of nitriles. The nitrilase ZmNIT2 showed high activity for all the tested nitriles except benzonitrile, producing both acids and amides. For the hydrolysis of aliphatic, aromatic nitriles, phenylacetonitrile derivatives and dinitriles, carboxylic acids
Acetic Acid Aldol Reactions in the Presence of Trimethylsilyl Trifluoromethanesulfonate
作者:C. Wade Downey、Miles W. Johnson、Daniel H. Lawrence、Alan S. Fleisher、Kathryn J. Tracy
DOI:10.1021/jo100828c
日期:2010.8.6
TMSOTf and a trialkylamine base, aceticacid undergoes aldol addition to non-enolizable aldehydes under exceptionally mild conditions. Acidic workup yields the β-hydroxy carboxylic acid. The reaction appears to proceed via a three-step, one-pot process, including in situ trimethylsilyl ester formation, bis-silyl ketene acetal formation, and TMSOTf-catalyzed Mukaiyama aldol addition. Independently synthesized
[EN] 3-(4-FLUOROPHENYL)-3-HYDROXY-2-AMINO-PROPIONIC ACID AMIDES AND RELATED COMPOUNDS HAVING ANALGESIC ACTIVITY<br/>[FR] AMIDES D'ACIDE 3-(4-FLUOROPHÉNYL)-3-HYDROXY-2-AMINO-PROPIONIQUE ET COMPOSÉS ASSOCIÉS AYANT UNE ACTIVITÉ ANALGÉSIQUE
申请人:ALLERGAN INC
公开号:WO2009100095A1
公开(公告)日:2009-08-13
Compounds according to the formula below are disclosed herein: Therapeutic methods for the treatment of pain, compositions, and medicaments related thereto are also disclosed.
根据以下公式披露的化合物:本文还披露了用于治疗疼痛的治疗方法,相关的组合物和药物。
Optically active alkyl 3-aryl-3-hydroxypropionates and a method for producing thereof
申请人:CHISSO CORPORATION
公开号:EP0451668A2
公开(公告)日:1991-10-16
The invention relates to optically active alkyl 3-aryl-3-hydroxypropionates represented by the general formula:
wherein R¹, R², R³, R ⁴ and R⁵ are hydrogen, hydroxyl, alkoxy of 1-4 carbon atoms, benzyloxy, flurorine, chlorine or bromine and R⁶ is alkyl,
and a method for producing the above compounds.