4,5-DIHYDR0-1H-PYRAZOLE DERIVATIVES, THEIR PREPARATION AND USE AS MEDICAMENTS
申请人:Laboratorios del Dr. Esteve S.A.
公开号:EP1917247A1
公开(公告)日:2008-05-07
[EN] 4,5-DIHYDR0-1H-PYRAZOLE DERIVATIVES, THEIR PREPARATION AND USE AS MEDICAMENTS<br/>[FR] DERIVES DE 4, 5-DIHYDR0-1H-PYRAZOLE, PREPARATION ET UTILISATION DE CEUX-CI COMME MEDICAMENTS
申请人:ESTEVE LABOR DR
公开号:WO2007009689A1
公开(公告)日:2007-01-25
[EN] The present invention relates to 4-substituted pyrazoline compounds of formula (I), methods for their preparation, medicaments comprising these compounds as well as their use for the preparation of a medicament for the treatment of humans and animals. [FR] L'invention concerne des composés de pyrazoline 4 substituée de formule I, des procédés de préparation de ceux-ci, des médicaments comprenant ces composés, ainsi que l'utilisation de ceux-ci dans la préparation d'un médicament destiné au traitement d'êtres humains et d'animaux.
The Birch reduction of 3-substituted pyrroles
作者:Timothy J Donohoe、Paul M Guyo、Rakesh R Harji、Madeleine Helliwell、Rick P.C Cousins
DOI:10.1016/s0040-4039(98)00362-1
日期:1998.5
The Birch reduction of electron-deficient 3-substituted pyrroles is described. Use of a reductive alkylation procedure involving sodium metal in liquid ammonia gave good yields of 4-alkyl-2-pyrrolines. The identity of these products was proven by an X-ray structure of a crystalline derivative. Moreover, the pyrroles used in this study could be readily prepared by reaction of TOSMIC with acrylic amides