[EN] TRIOXACARCINS AND USES THEREOF<br/>[FR] TRIOXACARCINES ET UTILISATIONS DE CELLES-CI
申请人:HARVARD COLLEGE
公开号:WO2011119549A1
公开(公告)日:2011-09-29
The present invention relates to trioxacarcin compounds of the formula: (I) or pharmaceutically acceptable forms thereof; wherein R1, R2, R3, R4, R5, R6, R7, R8, and R9 are as defined herein. The present invention also provides processes for preparing such compounds and intermediates thereto; pharmaceutical compositions comprising such compounds; and methods of use and treatment.
Anti-Selective Epoxidation of Methyl α-Methylene-β-<i>tert</i>-butyldimethylsilyloxycarboxylate Esters. Evidence for Stereospecific Oxygen Atom Transfer in a Nucleophilic Epoxidation Process
作者:Jakub Švenda、Andrew G. Myers
DOI:10.1021/ol900665a
日期:2009.6.4
Methyl α-methylene-β-tert-butyldimethylsilyloxycarboxylate esters are found to undergo diastereoselective epoxidation in the presence of potassium tert-butoxide−tert-butyl hydroperoxide to form anti products. In an effort to better understand mechanistic details of the transformation and the basis of diastereoselectivities observed, we studied the epoxidation of substrates with α-methylene groups containing
The present invention relates to trioxacarcin compounds of the formula: (I) or pharmaceutically acceptable forms thereof; wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, R
8
, and R
9
are as defined herein. The present invention also provides processes for preparing such compounds and intermediates thereto; pharmaceutical compositions comprising such compounds; and methods of use and treatment.