4-Phenyl derivatives of spinaceamine and spinacine undergo mild catalytic hydrogenation under atmospheric pressure with cleavage of the C-4-N-5 bond to give 5-benzyl-substituted histamines and histidines. The process is likely to be facilitated by the double benzylic effect on the C-N bond of the imidazole and benzene rings.
[EN] SUBSTITUTED SULFONAMIDE DERIVATIVES<br/>[FR] DÉRIVÉS SUBSTITUÉS DE SULFONAMIDE
申请人:GRUENENTHAL GMBH
公开号:WO2009124746A1
公开(公告)日:2009-10-15
The invention relates to substituted sulfonamide derivatives, processes for the preparation thereof, medicaments containing these compounds and the use of substituted sulfonamide derivatives for the preparation of medicaments.
这项发明涉及替代磺胺基衍生物,其制备方法,含有这些化合物的药物以及利用替代磺胺基衍生物制备药物。
SUBSTITUTED SULFONAMIDE COMPOUNDS
申请人:Reich Melanie
公开号:US20090275558A1
公开(公告)日:2009-11-05
Substituted sulfonamide compounds corresponding to formula I
processes for the preparation thereof, pharmaceutical compositions containing such compounds, and the use of such compounds for treating and/or inhibiting pain or other conditions at least partly mediated by the bradykinin 1 receptor.
Synthesis and dehydrogenation of spinaceamine and spinacine 4-hetaryl derivatives
作者:N. N. Smolyar、M. G. Abramyants、T. I. Zavyazkina、D. I. Matveeva、Ya. S. Borodkin、I. A. Voloskii
DOI:10.1134/s1070428009080181
日期:2009.8
The reaction of histamine and histidine with various hetarylaldehydes under the conditions of the base-catalyzed Pictet-Spengler process affords 4-hetaryl-substituted derivatives of spinaceamine and spinacine. The dehydrogenation of the 4-hetaryl-substituted spinaceamine derivatives using elemental sulfur in DMF at 120-130 degrees C led to the formation of 4-hetaryl derivatives of imidazo[4,5-c]-pyridine. Under similar conditions the 4-hetaryl-substituted spinacine derivatives suffered both the dehydrogenation and oxidative decarboxylation resulting in the products identical to the compounds obtained by the dehydrogenation of 4-hetaryl-substituted spinaceamine.