New imidazo[1,2-a]pyrazine derivatives with bronchodilatory and cyclic nucleotide phosphodiesterase inhibitory activities
摘要:
lNew imidazo[1,2-a]pyrazine derivatives have been synthesized either by direct cyclization from pyrazines or by electrophilic substitutions: The presence nf electron donating groups On position 8 greatly enhances the reactivity of the heterocycle towards such reactions on position 3 of the heterocycle. The activities of these derivatives in trachealis muscle relaxation and in inhihiting cyclic nucleotide phosphodiesterase(PDE) isoenzyme types III and IV have been assessed All compounds demonstrated higher relaxant potency than theophylline. All the derivatives were moderately potent in inhibiting the type IV isoenzyme of PDE but only those with a cyano group on position 2 were potent in inhibiting the type III isoenzyme. (C) 1999 Elsevier Science Ltd. All rights reserved.
8-alkylaminoimidazo(1,2-a)pyrazines and derivatives, their preparation
申请人:l'Universite de Montpellier I
公开号:US05028605A1
公开(公告)日:1991-07-02
##STR1## Novel 8-alkylamino-imidazo(1,2-a)pyrazines of formula (I) show advantages pharmacological activities. They can be used for medical products in human and veterinary therapy in the field of applications of antispasmodics, uterine relaxants, bronchodilators, cardiac analeptics and neurosedatives.
8-ALKYLAMINOIMIDAZO 1,2-A]PYRAZINES AND DERIVATIVES, THEIR PREPARATION AND THEIR APPLICATION IN THERAPY
申请人:BYK GULDEN LOMBERG CHEMISCHE FABRIK GMBH
公开号:EP0348392A1
公开(公告)日:1990-01-03
US5028605A
申请人:——
公开号:US5028605A
公开(公告)日:1991-07-02
[EN] 8-ALKYLAMINOIMIDAZO[1,2-A]PYRAZINES AND DERIVATIVES, THEIR PREPARATION AND THEIR APPLICATION IN THERAPY
申请人:BYK GULDEN LOMBERG CHEMISCHE FABRIK GMBH
公开号:WO1988004298A1
公开(公告)日:1988-06-16
(EN) Novel 8-alkylamino-imidazo(1,2-a)pyrazines of formula (I) show advantageous pharmacological activities. They can be used for medical products in human and veterinary therapy in the field of applications of antispasmodics, uterine relaxants, bronchodilators, cardiac analeptics and neurosedatives.(FR) De nouvelles 8-alkylaminoimidazo(1,2-a)pyrazines de formule (I) présentent des activités pharmacologiques avantageuses. Elles peuvent s'utiliser pour des produits médicamenteux en thérapeutique humaine et vétérinaire dans le domaine d'application des antispamodiques, relaxateurs utérins, bronchodilatateurs, analeptiques cardiaques et neurosédatifs.