Synthesis of spiro-fused (C5)-pyrazolino-(C6)-triazinones, a new heterocyclic system
摘要:
Reaction of 4-hydrazinoquinazoline with 2,4-diketoesters gives the corresponding 3-acylmethyl-2H[1,2,4]triazino[2,3-c]quinazolin-2-ones in a one-step procedure via cyclocondensation-Dimroth-like rearrangement. Spectroscopic studies as well as X-ray analysis reveal that the obtained triazinoquinazolines exist in their ketoimine tautomeric form. Treatment of these compounds with hydrazine hydrate affords 3'-(2-aminophenyl)-3-(het)aryl-spiro[pyrazoline-5,6'(1'H)-1,2,4-triazin]-5'(4'H)-ones or 5-(het)arylpyrazole-3-carboxylic acid hydrazides depending on the reaction conditions. The structure of the spiro-heterocycles was elucidated by means of single-crystal X-ray analysis and confirmed by spectroscopic investigations. (C) 2009 Elsevier Ltd. All rights reserved.
The present application describes substituted-aminomethyl substituted compounds and derivatives thereof, or pharmaceutically acceptable salt forms thereof, which are useful as inhibitors of factor Xa.
[EN] LIVER X RECEPTOR (LXR) MODULATORS FOR THE TREATMENT OF DERMAL DISEASES, DISORDERS AND CONDITIONS<br/>[FR] MODULATEURS DU RÉCEPTEUR HÉPATIQUE X (LXR) PERMETTANT DE TRAITER LES MALADIES, TROUBLES ET AFFECTIONS DERMIQUES
申请人:ANAYADERM INC
公开号:WO2013130892A1
公开(公告)日:2013-09-06
Described herein are liver X receptor (LXR) modulators and methods of utilizing LXR modulators in the treatment of dermal diseases, disorders or conditions. Also described herein are pharmaceutical compositions containg such compounds.
Organocatalytic Modified Guareschi–Thorpe Type Regioselective Synthesis: A Unified Direct Access to 5,6,7,8-Tetrahydroquinolines and Other Alicyclic[<i>b</i>]-Fused Pyridines
作者:Pradeep K. Jaiswal、Vashundhra Sharma、Manas Mathur、Sandeep Chaudhary
DOI:10.1021/acs.orglett.8b02132
日期:2018.10.5
An unprecedented organocatalytic, regioselective, modified Guareschi–Thorpe type protocol toward the modular synthesis of 5,6,7,8-tetrahydroquinolines 22a–g and other alicyclic[b]-fused pyridines 23–28 via the identification of Chitosan as a heterogeneous catalyst is reported. This novel strategy is operationally simple and showed a wide range of functional group tolerance and substrate compatibility
前所未有的有机催化,区域选择性,改良的Guareschi-Thorpe型方案,通过鉴定壳聚糖作为多相催化剂,可模块化合成5,6,7,8-四氢喹啉22a – g和其他脂环式[ b ]稠合吡啶23 – 28。被报道。这种新颖的策略操作简单,并且具有广泛的官能团耐受性和底物相容性。拟议的机制途径涉及亚胺-烯胺级联方法,用于合成结构多样的脂环式[ b ]稠合吡啶杂环。新型抗真菌分子的克级合成和鉴定29 –图31强调了这种方法的实用性。
[EN] SUBSTITUTED PYRROLIDINONE AS INHIBITORS OF HEPATITIS C NS5B POLYMERASE, THE PHARMACEUTICAL COMPOSITION THEREOF AND THEIR THERAPEUTIC USE<br/>[FR] PYRROLIDINONE SUBSTITUÉE EN TANT QU'INHIBITEURS DE LA POLYMÉRASE DU VIRUS DE L'HÉPATITE C NS5B, COMPOSITION PHARMACEUTIQUE LA COMPRENANT ET LEUR UTILISATION THÉRAPEUTIQUE
申请人:VIVALIS
公开号:WO2011004018A1
公开(公告)日:2011-01-13
The present invention concerns a substituted pyrrolidinone of the following formula I or a salt, solvate, tautomer, isotope, enantiomer, diastereoisomer or racemic mixture thereof:(I), for the treatment of hepatitis C.
Synthesis of<i>meta</i>-substituted anilines<i>via</i>a three-component reaction of acetone, amines, and 1,3-diketones
作者:Andrew R. Galeev、Maksim V. Dmitriev、Ivan G. Mokrushin、Irina V. Mashevskaya、Andrey N. Maslivets、Michael Rubin
DOI:10.1039/c9ob02120e
日期:——
facile method for the synthesis of meta-substituted arylamines from acyclic precursors was developed. This method is based on three-component cyclo-condensation/aromatization of in situ generated imines of acetone with 1,3-diketones either under conventional heating or under microwave irradiation. The utility of this methodology is illustrated by the possibility of a gram scale synthesis of various anilines