Aza-analogs of Stilbene with a Dipolar Character. (E)-1-Alkyl-[2-(azolyl-2-idene)etylidene]dihydropyridines and (E)-2-[2-(1-Alkyl-3-pyridinium)vinyl]azolate Inner Salts
Aza-analogs of Stilbene with a Dipolar Character. (E)-1-Alkyl-[2-(azolyl-2-idene)etylidene]dihydropyridines and (E)-2-[2-(1-Alkyl-3-pyridinium)vinyl]azolate Inner Salts
Methods and compositions of treating a flaviviridae family viral infection
申请人:Einav Shirit
公开号:US20100028299A1
公开(公告)日:2010-02-04
Briefly described, embodiments of this disclosure include compounds, pharmaceutical compositions, methods of treating a host infected with a virus from the Flaviviridae family of viruses, methods of inhibiting HCV replication in a host, methods of inhibiting the binding of NS4B polypeptide to the 3′UTR of HCV negative strand RNA in a host, methods of treating liver fibrosis in a host, and the like.
A convenient synthesis and characterization of several examples of (E)-2- [2-(1-alkyl-3-pyridinio): vinyl] benzimidazolate inner salts and (E)-1-alkyl-2(or 4)-[2- (benzimidazol-2-ylidene)ethylidene]-dihydropyridines with a betaine character is reported. Their structural aspects are discussed mainly on the basis of the H-1 NMR data and experimental dipole moment values (11.6-13.0 D). The experimental information available for (E)-1-alkyl-2(or 4)- [2- (benzimidazol-2-ylidene)ethylidene] dihydrepyridines (A <-> B) is consistent with a betaine character, and the dipolar form (B) has been shown to make an important contribution to the ground state.
Alcalde Ermitas, Dinares Immaculada, Pons Josep-Maria, Roca Tomas, J. Org. Chem, 59 (1994) N 3, S 639- 643
作者:Alcalde Ermitas, Dinares Immaculada, Pons Josep-Maria, Roca Tomas
DOI:——
日期:——
An Advantageous Synthesis of 2-Substituted Benzimidazoles Using Polyphosphoric Acid. 2-(Pyridyl)-1<i>H</i>-benzimidazoles, 1-Alkyl-(1<i>H</i>-benzimidazol-2-yl)pyridinium Salts, their Homologues and Vinylogues
The title 2-substituted benzimidazoles are prepared by a highly efficient one-pot procedure, cyclodehydration of the corresponding accessible carboxylic acids and 1,2-arylenediamines, using polyphosphoric acid as the catalyst and solvent in a condensation of the type found in the Phillips benzimidazole synthesis. The method has been adapted and proved to be extremely useful for 1-alkyl-(1H-benzimidazol-2-yl) pyridinium tetrafluoroborates with a methylene and vinylene interannular moiety.
Aza-analogs of Stilbene with a Dipolar Character. (<i>E</i>)-1-Alkyl-[2-(azolyl-2-idene)etylidene]dihydropyridines and (<i>E</i>)-2-[2-(1-Alkyl-3-pyridinium)vinyl]azolate Inner Salts
作者:Ermitas Alcalde、Tomás Roca、Jean Pierre Fayet、Marie Claire Vertut
DOI:10.1246/cl.1991.2151
日期:1991.12
The first synthesis and characterization of several examples of the title compounds is described. Their physicochemical properties are discussed on the basis of the 1H NMR data and the large experimental dipole moments 11.66 to 13.0 Debye. Furthermore, all the experimental results for (E)-1-alkyl-[2-(azolyl-2-idene)-etylidene]-dihydropyridines (A↔B) favour the dipolar structure (B).