Synthesis of 3-(2-N,N-diethylaminoethoxy)indoles as potential 5-HT6 receptor ligands
作者:Karolin Alex、Nicolle Schwarz、Vivek Khedkar、Iliyas Ali Sayyed、Annegret Tillack、Dirk Michalik、Jörg Holenz、José Luis Díaz、Matthias Beller
DOI:10.1039/b802054j
日期:——
The synthesis of new pharmaceutically interesting 3-(2-N,N-diethylaminoethoxy)indole derivatives is described. Starting from 3-silyloxy-2-methylindoles, deprotection and in situ aminoalkylation provided 3-(2-N,N-diethylaminoethoxy)indoles in good yield. Further sulfonylation of these novel indoles gave access to potential5-HT(6) receptorligands.
A general method for the one-pot synthesis of substituted 3-(tert-butyldimethylsilyloxy)indoles via hydrohydrazination of alkynes and subsequent Fischer indole synthesis has been developed. For the first time titanium-catalyzed hydroaminations of propargyl alcohol derivatives are shown.
TETRAHYDROCARBAZOLE DERIVATIVES USEFUL AS ANDROGEN RECEPTOR MODULATORS
申请人:Fales Kevin Robert
公开号:US20100022550A1
公开(公告)日:2010-01-28
The present invention provides a compound of the formula: Formula (I) or a pharmaceutically acceptable salt thereof; pharmaceutical compositions comprising an effective amount of a compound of Formula (I) in combination with a suitable carrier, diluent, or excipient; and methods for treating physiological disorders, particularly frailty, osteoporosis, osteopenia, and male and female sexual dysfunction comprising administering to a patient in need thereof an effective amount of a compound of formula (I).
We present a PPh3/DDQ-mediated regiospecific selectiveN-functionalization of arylhydrazines with primary benzylic alcohols and aryl carboxylic acids for the synthesis of N1-benzyl arylhydrazines and N2-acyl arylhydrazines, respectively. This metal- and base-free approach features very short reaction times (about 10 min), broad substrate scope, good functional group tolerance, and mild reaction conditions