作者:Erin D. Shepherd、Michal S. Hallside、Jack L. Sutro、Amber Thompson、Martin Hutchings、Jonathan W. Burton
DOI:10.1016/j.tet.2020.130981
日期:2020.3
P-glycoprotein inhibitors. Considerable attention has been paid to the synthesis of biologically active jatrophanes although very few have succumbed to total synthesis. Herein we report a synthesis of the cyclopentane core of pepluanin A, a potent P-glycoprotein inhibitor, that features an iodocarbocyclization and an invertive acetal formation as key steps.
A new synthetic strategy directed towards the solomonamides, a novel class of cyclopeptides of marine origin, has been developed utilizing an olefinmetathesis reaction to form the [15]-membered ring contained in these natural products. We demonstrated the efficiency and validity of this synthetic approach for the construction of the macrocyclic core of the solomonamides in a minimally oxidized system
Compounds having antibacterial activity are disclosed. The compounds have the following structure (I):
including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein Q
1
, Q
2
, Q
3
, R
11
and R
12
are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
Acyclic stereoselection. Part 42. 1,4- and 1,5-Stereoselection by sequential aldol addition to a .alpha.,.beta.-unsaturated aldehydes followed by Claisen rearrangement. Application to total synthesis of the vitamin E side chain and the archaebacterial C40 diol
作者:Clayton H. Heathcock、Bruce L. Finkelstein、Esa T. Jarvi、Peggy A. Radel、Cheri R. Hadley
DOI:10.1021/jo00244a017
日期:1988.4
Silylmethyl radical cyclization: new stereoselective method for 1,3-diol synthesis from allylic alcohols