作者:Austin D. Marchese、Louise Kersting、Mark Lautens
DOI:10.1021/acs.orglett.9b02797
日期:2019.9.6
A scalable, diastereoselective nickel-catalyzed carboiodination reaction is reported that avoids metal-based reducing agents. Novel anti-dihydroquinolones and previously unreported tetrahydroquinolines are now readily prepared. The generation of anti-dihydroquinolones is noteworthy, as this selectivity is opposite to that of the Pd variant. Mechanistic insight into the nature of the nickel-catalyzed
Sequential Heck–Heck reactions for the dibenz[a,f]indolizine skeleton: synthetic application to decumbenine B
作者:Bok-Jin Lee、Gil-Pyo Hong、Guncheol Kim
DOI:10.1016/j.tetlet.2016.10.064
日期:2016.11
the synthesis of dibenz[a,f]indolizine skeleton. Heck reaction for the 5-membered ring first and the following Heck reaction provided the 6-membered ring next. For the synthetic application properly arranged diiodo-aromatic intermediate has been prepared and subjected to the sequential Heck reactions, and the following decarboxylation provided the known precursor of decumbenine B.
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.