KO<sup><i>t</i></sup>Bu Mediated Synthesis of Phenanthridinones and Dibenzoazepinones
作者:Bhagat Singh Bhakuni、Amit Kumar、Shah Jaimin Balkrishna、Javeed Ahmed Sheikh、Sanjit Konar、Sangit Kumar
DOI:10.1021/ol301077y
日期:2012.6.1
Synthesis of substituted phenanthridinones and dibenzoazepinones has been realized from 2-halo-benzamides in the presence of potassium tert-butoxide and a catalytic amount of 1,10-phenanthroline or AIBN. This new carbon–carbon bond forming reaction gives direct access to various biaryl lactams containing six- and seven-membered rings chemoselectively. Carbon–carbon coupling seems to proceed by the generation
The present invention provides compounds of formula I: formula (I) wherein X
1
-X
4
and R
1
-R
12
have any of the values defined in the specification, as well as salts and prodrugs thereof, which inhibit major molecular mechanisms associated with bacterial cell division and proliferation so as to be useful for the treatment and/or prevention of bacterial infections. The invention also provides compositions comprising these compounds as well as methods for using these compounds to inhibit bacterial cell division and proliferation and to treat bacterial infections.