Macrocyclic peptides are disclosed having the general formula:
wherein R
3
, R
3
′, R
4
, R
6
, R′, X, Q and W are described. Compositions comprising the compounds and methods for using the compounds to inhibit HCV are also disclosed.
Macrocyclic peptides are disclosed having the general formula:
wherein R′, R
3
, R
3′
, R
4
, R
6
, X, Q, and W are described. Compositions comprising the compounds and methods for using the compounds to inhibit HCV are also disclosed.
Synthesis of Substituted 1<i>H</i>-Indazoles from Arynes and Hydrazones
作者:Pan Li、Chunrui Wu、Jingjing Zhao、Donald C. Rogness、Feng Shi
DOI:10.1021/jo202598e
日期:2012.4.6
The 1H-indazole skeleton can be constructed by a [3 + 2] annulation approach from arynes and hydrazones. Under different reaction conditions, both N-tosylhydrazones and N-aryl/alkylhydrazones can be used to afford a variety of indazoles. The former reaction affords 3-substituted indazoles either via in situ generated diazo compounds or through an annulation/elimination process. The latter reaction leads to 1,3-disubstituted indazoles likely through an annulation/oxidation process. The reactions operate under mild conditions and can accommodate aryl, vinyl, and less satisfactorily, alkyl groups.