Mild, effective and selective method for the silylation of alcohols using silazanes promoted by catalytic tetrabutylammonium fluoride
作者:Yoo Tanabe、Masanari Murakami、Kazuto Kitaichi、Yoshihiro Yoshida
DOI:10.1016/s0040-4039(00)74419-4
日期:1994.11
The presence of catalytic amounts (∼0.02 equiv.) of tetrabutylammoniumfluoride (TBAF) significantly promoted the silylation of alcohols using a variety of available silazanes under mild conditions with high chemoselectivity, wherein the choice of silazanes allowed an alternative method for the powerful silylation of various kinds of alcohols or the highly regioselective silylation of primary alcohols
Nitrooxy derivatives of steroidal compounds of general formula
B—X
1
—NO
2
(I)
or esters or salts thereof, wherein:
B is a steroidal radical, X
1
is a bivalent linking group comprising an aromatic or heterocyclic ring.
The present invention relates to novel 4-pregenen-11β-17-21-triol-3,20-dione derivatives, processes for preparing them, pharmaceutical compositions containing them and their use as pharmaceuticals, as modulators of glucocorticoid or mineralocorticoid receptors. The invention relates specifically to the use of these compounds and their pharmaceutical compositions to treat disorders associated with glucocorticoid or mineralocorticoid receptor modulation.
Bile acids and related compositions and methods of synthesis and use. More specifically, deoxycholic acid and related compositions, said compositions being free of all moieties of animal origin and free of pyrogenic moieties.
Targeting Prodrugs for the Treatment of Gastrointestinal Diseases
申请人:Gilmer John Francis
公开号:US20090082314A1
公开(公告)日:2009-03-26
Provided herein are compounds, compositions and methods for decreasing NFκB DNA-binding activity in a patient comprising administering of a therapeutically effective amount of a compound or composition of the application to the patient to reduce, alleviate or treat various gastrointestinal diseases, such as inflammatory bowel disease (IBD).