Ring contraction of 1,2,4-triazepino[2,3-a]benzimidazol-4-ones. New fused .beta.-lactams
摘要:
Isolation of uncommon fused tetracyclic beta-lactams 2 strongly supports a previously unconfirmed ionic mechanism for the ring contraction of nitrogen-bridged azolo-1,2,4-triazepin-3-ones in acetic anhydride. Procedures for the synthesis in good yields of substituted-pyrazolo[1,5-alpha]benzimidazoles from the corresponding [1,2,4]triazepino[2,3-alpha]benzimidazoles are reported.
Reactions of 1,2-diaminobenzimidazoles with β-dicarbonyl compounds
作者:C. Romano、E. De La Cuesta、C. Avendano、F. Florencio、J. Sainz-Aparicio
DOI:10.1016/s0040-4020(01)86088-9
日期:1988.1
The reactions of 1,2-diaminobenzimidazoles with β-dicarbonyl compounds give 1,2,4-triazepino [2,3-a]benzimidazole and pyrimido [1,2-a]benzimidazole-derivatives.
REACTION OF 1,2-DIAMINOBENZIMIDAZOLE WITH 1-ARYL-2-BROMO-3-PHENYLPROPANONE. SYNTHESIS OF 2-ARYL-3-BENZYL-9-AMINOIMIDAZO[1,2-A] BENZIMIDAZOLES
作者:Braulio Insuasty、Fernando Fernandez、Jairo Quiroga、Roberto Martinez、Ruben Gavino、Enrique Angeles
DOI:10.1515/hc.2002.8.2.151
日期:2002.1
COLOC. Introduction The incorporation of an imidazole nucleus, a biologically accepted pharmacophore in the benzimidazole molecule has made it a versatile heterocycle possessing a wide spectrum of biological activities. As benzimidazole are associated with antiparasitic [1-3]. CNS depressant and anti-inflammatory activity [4-6] and pharmacological activities [7-10], one may well expect the imidazobenzimidazole
Method for reducing a susceptibility to tumor formation induced by 3-deoxyglucosone and precursors thereof
申请人:Brown R. Truman
公开号:US20060089316A1
公开(公告)日:2006-04-27
Disclosed are methods of using various compounds, which are known to bind to 3-deoxyglucosone (3DG) or precursors thereof, in order to reduce a susceptibility to tumor formation and/or to prevent or delay onset of tumor formation induced by 3DG and its precursors. Also disclosed is the reduction of 3DG levels in high fructose corn syrop so that the high fructose corn syrup is less likely to induce tumor formation.