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
호모세린 락톤 유도체, 이의 제조방법 및 이를 유효성분으로 함유하는 치주질환의 예방 또는 치료용 약학적 조성물
申请人:Seoul National University R&DB Foundation 서울대학교산학협력단(120070509242) Corp. No ▼ 114371-0009224BRN ▼119-82-03684
公开号:KR101672829B1
公开(公告)日:2016-11-07
본 발명은 호모세린 락톤 유도체, 이의 광학 이성질체, 또는 이의 약학적으로 허용 가능한 염에 관한 것으로, 본 발명에 따른 호모세린 락톤 유도체는 세균 간의 의사소통을 방해하는 퀴럼센싱 길항제로서 우수한 성능을 갖는다. 이에 따라, 세균의 유전자 발현을 방해하여, 항생제에 대한 내성을 키우는 것으로 알려진 생물막(biofilm)의 형성을 효과적으로 차단할 수 있고, 세균들의 번식을 저지할 수 있으므로, 본 발명에 따른 호모세린 락톤 유도체는 치주질환의 예방 또는 치료용 약학적 조성물로 유용하게 사용할 수 있다.
Enantioselective synthesis of α- and β-hydroxy acids using -2-phenylcyclohexan-1-ol-as chiral auxiliary
作者:D. Basavaiah、T.K. Bharathi
DOI:10.1016/s0040-4039(00)92724-2
日期:1991.7
-2-Phenylcyclohexanol has been used as a chiral auxiliary for the preparation of α- and β-hydroxyacids in 85–100% and 11–89% enantiomeric purities respectively.
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
AMIDE COMPOUND AND THROMBOPOIETIN RECEPTOR ACTIVATOR
申请人:Miyaji Katsuaki
公开号:US20090131659A1
公开(公告)日:2009-05-21
The present invention provides compounds useful for prevention, treatment or alleviation of diseases against which activation of the thrombopoietin receptor is effective.
A compound represented by the formula (1):
wherein A, B, R
1
, L
1
, R
2
, L
2
, L
3
, Y, L
4
, R
3
and X are the same as defined in the description, a tautomer, prodrug or pharmaceutically acceptable salt of the compound or a solvate thereof.