Development of the Traceless Phenylhydrazide Linker for Solid-Phase Synthesis
作者:Frank Stieber、Uwe Grether、Herbert Waldmann
DOI:10.1002/chem.200304820
日期:2003.7.21
couplings, as well as Wittig and Grignard reactions. Traceless release of the coupling products from the solidsupport is achieved selectively under mild conditions and in high purity by oxidation of the aryl hydrazides to acyl diazenes with Cu(II) salts or N-bromosuccinimide (NBS) and subsequent nucleophilic attack of the acyl diazene intermediates. Traceless cleavage by oxidation with NBS can be carried
Traceless release of biaryls, acetylenes, alkenes, heterocycles, thioethers, and secondary amines from different solid supports can be achieved under very mild conditions by using a hydrazide group. This group, which is converted into an acyl diazene by oxidation and subsequently cleaved by a nucleophile (see scheme), is thus an attractive new linker for solid-phasesynthesis and combinatorial chemistry
[EN] INHIBITORS OF BRUTON'S TYROSINE KINASE<br/>[FR] INHIBITEURS DE LA TYROSINE KINASE DE BRUTON
申请人:HOFFMANN LA ROCHE
公开号:WO2015086642A1
公开(公告)日:2015-06-18
This application discloses compounds according to generic Formula (I) wherein all variables are defined as described herein, which inhibit Btk. The compounds disclosed herein are useful to modulate the activity of Btk and treat diseases associated with excessive Btk activity. The compounds are useful for the treatment of oncological, auto-immune, and inflammatory diseases caused by aberrant B-cell activation. Also disclosed are compositions containing compounds of Formula (I) and at least one carrier, diluent or excipient.
Substituted N-acylaniline derivatives, the preparation thereof, and their use as pharmaceutical compositions
申请人:Boehringer Ingelheim Pharma GmbH & Co. KG
公开号:US20040248897A1
公开(公告)日:2004-12-09
Substituted N-acylaniline derivatives of general formula
1
wherein R
1
to R
5
, A, X, Y, and Z are as defined herein, and the tautomers, prodrugs, and derivatives thereof which contain, instead of a carboxy group, a group which is negatively charged under physiological conditions contain, and the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases, which have valuable properties.