Azoles. Part II. Synthesis of imidazole-2(and -5)-carbaldehydes and derivatives of imidazo[1,2-b]isoquinoline; transmetallation of imidazol-5-yllithium compounds
摘要:
The transmetallations of 1-protected 4-bromoimidazol-5-yllithium derivatives have been studied using DMF as the quenching reagent. 4-Bromoimidazole-2-carbaldehydes are usually the major products and not the -5-carbaldehydes as reported previously. Various attempts to prevent or inhibit these transmetallations are described. Cyclisation of 4-bromo(and 4,5-dibromo)-1-(3,4-dimethoxybenzyl)imidazole-2-carbaldehyde and 1-(3,4-dimethoxybenzyl)benzimidazole-2-carbaldehyde in TFA gave the corresponding imidazo- or benzimidazo-[1,2-b]isoquinoline.
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.
Iddon Brian, Petersen Anders K., Becher Jan, Christensen Nils J., J. Chem. Soc. Perkin Trans. 1, (1995) N 12, S 1475-1481
作者:Iddon Brian, Petersen Anders K., Becher Jan, Christensen Nils J.
DOI:——
日期:——
Azoles. Part II. Synthesis of imidazole-2(and -5)-carbaldehydes and derivatives of imidazo[1,2-b]isoquinoline; transmetallation of imidazol-5-yllithium compounds
作者:Brian Iddon、Anders K. Petersen、Jan Becher、Nils J. Christensen
DOI:10.1039/p19950001475
日期:——
The transmetallations of 1-protected 4-bromoimidazol-5-yllithium derivatives have been studied using DMF as the quenching reagent. 4-Bromoimidazole-2-carbaldehydes are usually the major products and not the -5-carbaldehydes as reported previously. Various attempts to prevent or inhibit these transmetallations are described. Cyclisation of 4-bromo(and 4,5-dibromo)-1-(3,4-dimethoxybenzyl)imidazole-2-carbaldehyde and 1-(3,4-dimethoxybenzyl)benzimidazole-2-carbaldehyde in TFA gave the corresponding imidazo- or benzimidazo-[1,2-b]isoquinoline.