A Simple, Efficient and Green Procedure for the Knoevenagel Condensation of Aldehydes with N-Methylpiperazine at Room Temperature under Solvent-Free Conditions
作者:Chhanda Mukhopadhyay、Arup Datta
DOI:10.1080/00397910802029364
日期:2008.6.20
Abstract Knoevenagelcondensation of aromatic, aliphatic, and heteroaromatic aldehydes with active methylene compounds such as ethylcyanoacetate, malononitrile, and cyanoacetamide proceed very smoothly at room temperature by simply mixing the ingredients together undersolvent-freeconditions in the presence of N-methylpiperazine in excellent yields of the E-configured products.
摘要 芳香族、脂肪族和杂芳香族醛与活性亚甲基化合物如氰乙酸乙酯、丙二腈和氰基乙酰胺的 Knoevenagel 缩合在室温下非常顺利地进行,方法是在 N-甲基哌嗪的存在下,在无溶剂条件下简单地将这些成分混合在一起,收率非常好的 E 配置产品。
Physically mixed catalytic system of amino and sulfo-functional porous organic polymers as efficiently synergistic co-catalysts for one-pot cascade reactions
or alkaline treatment. The bi-functional polymeric materials were utilized as a synergistic catalytic system for one-potcascadereactions including deacetalization–Henry condensation reaction, deacetalization–Knoevenagel condensation reaction and the transformation of 3,4-dihydropyran derivatives to α-ester cyclohexenone compounds. The crosslinked polymeric frameworks effectively isolated sulfonic
ALLOSTERIC MODULATORS OF NICOTINIC ACETYLCHOLINE RECEPTORS
申请人:MERCK SHARP & DOHME CORP.
公开号:US20170275260A1
公开(公告)日:2017-09-28
The present disclosure relates to compounds of formula I that are useful as modulators of α7 nAChR, compositions comprising such compounds, and the use of such compounds for preventing, treating, or ameliorating disease, particularly disorders of the central nervous system such as cognitive impairments in Alzheimer's disease, Parkinson's disease, and schizophrenia, as well as for L-DOPA induced-dyskinesia and inflammation
[EN] PYRAZOLE DERIVATIVES AS PROTEIN KINASE MODULATORS<br/>[FR] DERIVES DE PYRAZOLE SERVANT DE MODULATEURS DE PROTEINE KINASE
申请人:ASTEX TECHNOLOGY LTD
公开号:WO2005061463A1
公开(公告)日:2005-07-07
The invention provides compounds of the formula: (I) having protein kinase B inhibiting activity: wherein A is a saturated hydrocarbon linker group containing from 1 to 7 carbon atoms, the linker group having a maximum chain length of 5 atoms extending between Rl and NR2R3 and a maximum chain length of 4 atoms extending between E and NR2R3, wherein one of the carbon atoms in the linker group may optionally be replaced by an oxygen or nitrogen atom; and wherein the carbon atoms of the inker group A may optionally bear one or more substituents selected from oxo, fluorine and hydroxy, provided that the hydroxy group when present is not located at a carbon atom a with respect to the NR2R3 group and provided that the oxo group when present is located at a carbon atom a with respect to the NR2R3 group; E is a monocyclic or bicyclic carbocyclic or heterocyclic group; Rl is an aryl or heteroaryl group; and R2, R3, R4 and R5 are as defined in the claims. Also provided are pharmaceutical compositions containing the compounds, methods for preparing the compounds and their use as anticancer agents.
PHARMACEUTICAL COMBINATIONS COMPRISING PYRAZOLE DERIVATIVES AS PROTEIN KINASE MODULATORS
申请人:Thompson Neil Thomas
公开号:US20100166699A1
公开(公告)日:2010-07-01
The invention provides a combination comprising an ancillary compound (e.g. one, two or more ancillary compounds) and a compound of the formula (I) having protein kinase B inhibiting activity: wherein A is a saturated hydrocarbon linker group containing from 1 to 7 carbon atoms, the linker group having a maximum chain length of 5 atoms extending between R
1
and NR
2
R
3
and a maximum chain length of 4 atoms extending between E and NR
2
R
3
, wherein one of the carbon atoms in the linker group may optionally be replaced by an oxygen or nitrogen atom; and wherein the carbon atoms of the linker group A may optionally bear one or more substituents selected from oxo, fluorine and hydroxy, provided that the hydroxy group when present is not located at a carbon atom a with respect to the NR
2
R
3
group and provided that the oxo group when present is located at a carbon atom a with respect to the NR
2
R
3
group; E is a monocyclic or bicyclic carbocyclic or heterocyclic group; R is an aryl or heteroaryl group; and R
2
, R
3
, R
4
and R
5
are as defined in the claims. Also provided are patient packs, pharmaceutical kits and packs and compositions containing the combinations, methods for preparing the combinations and their use in combination therapy as anticancer agents.