Mild Organic Ammonium Tribromide–Mediated Regioselective Ring Opening of Epoxides with Alcohols, Water, Acetic Anhydride, and Amines Under Solvent-Free Reaction Conditions
作者:Sweety Singhal、Suman L. Jain、Bir Sain
DOI:10.1080/00397911.2010.493259
日期:2011.5.4
Abstract Organic ammonium tribromide (OATB), N-methylpyrrolidine-2-one hydrotribromide (MPHT) was found to be an efficient catalyst for the regioselective ring opening of epoxides with various nucleophiles under solvent free conditions. This procedure occurs under neutral and mild reaction conditions with out adding any additive and afforded high yields of products.
NEW IMIDAZOLONE DERIVATIVES AS INHIBITORS OF PROTEIN KINASES IN PARTICULAR DYRK1A, CLK1 AND/OR CLK4
申请人:Perha Pharmaceuticals
公开号:EP3904354A1
公开(公告)日:2021-11-03
The present invention relates to a compound of formula (I)
wherein R1 represents a (C1-C6)alkyl group, a spiro(C5-C11)bicyclic ring, a fused phenyl group, a substituted phenyl group, a R'-L- group, wherein L is either a single bond or a (Ci-C3)alkanediyl group, and R' represents a (C3-C8)cycloalkyl group, a bridged (C6-C10)cycloalkyl group, a (C3-C8)heterocycloalkyl group, or a (C3-C8)heteroaryl group, or a R'-L- group wherein L is a (Ci-C3)alkanediyl group, and R' is a an optionally substituted phenyl group or any of its pharmaceutically acceptable salt.
The present invention further relates to a composition comprising a compound of formula (I) and a process for manufacturing said compound as well as its synthesis intermediates.
It also relates to said compound for use as a medicament, in particular in the treatment and/or prevention of cognitive deficits associated with Down syndrome; Alzheimer's disease; dementia; tauopathies; Parkinson's disease; CDKL5 Deficiency Disorder; Phelan-McDermid syndrome; autism; diabetes; regulation of folate and methionine metabolism; osteoarthritis; Duchenne muscular dystrophy; several cancers; neuroinflammation, anemia and infections and for regulating body temperature.
Dérivés amino ramifiés du thiazole, leurs procédés de préparation et les compositions pharmaceutiques qui les contiennent
申请人:SANOFI
公开号:EP0659747A1
公开(公告)日:1995-06-28
L'invention concerne des composés de formule I
dans laquelle R₁ à R₅ sont tels que définis à la revendication 1. Ces composés trouvent leur application dans le traitement de toutes les pathologies impliquant le CRF.
本发明涉及式 I 的化合物
这些化合物可用于治疗所有涉及 CRF 的病症。
3-(1-oxoisoindolin-2-yl)piperidine-2,6-dione derivatives and uses thereof
申请人:Novartis AG
公开号:US10647701B2
公开(公告)日:2020-05-12
The present disclosure provides a compound of Formula (I′):
or a pharmaceutically acceptable salt, hydrate, solvate, prodrug, stereoisomer, or tautomer thereof, wherein R1, R2, Rx, X1, n, n1, and q are as defined herein, and methods of making and using same.
BiCl3-mediated opening of epoxides, a facile route to chlorohydrins or amino alcohols: one reagent, two paths
作者:Adam McCluskey、Sarah K. Leitch、James Garner、Christine E. Caden、Timothy A. Hill、Luke R. Odell、Scott G. Stewart
DOI:10.1016/j.tetlet.2005.09.088
日期:2005.11
Opening of epoxides can be an effective means by which a variety of functional groups can be incorporated. In this letter, we outline how variation of conditions, in particular, that of solvent and concentration, give rise to different products using the Lewis acid catalyst BiCl3. (c) 2005 Elsevier Ltd. All rights reserved.