[EN] PIPERAZINE DERIVATIVES AS 5-HT1B ANTAGONISTS<br/>[FR] DERIVES DE PIPERAZINE UTILISES EN TANT QU'ANTAGONISTES DE 5-HT1B
申请人:SMITHKLINE BEECHAM PLC
公开号:WO2001023374A1
公开(公告)日:2001-04-05
Piperazine derivatives of formula (I) processes for their preparation, pharmaceutical compositions containing them and to their use in therapy as 5-HT1B antagonists. W,Y,Ra-Reare so defined in the application.
Piperazine derivatives of formula (I) processes for their preparation, pharmaceutical compositions containing them and to their use in therapy as 5-HT
1B
antagonists. W,Y,R
a
-R
e
are so defined in the application.
1
Palladium-Catalyzed Amidation of Unactivated C(sp<sup>3</sup>)H Bonds: from Anilines to Indolines
作者:Julia J. Neumann、Souvik Rakshit、Thomas Dröge、Frank Glorius
DOI:10.1002/anie.200903035
日期:2009.9.1
Unreactive CH to attractive CN: A palladium‐catalyzed intramolecular direct amidation of unactivated C(sp3)Hbonds combines CH activation and CN bond formation into one efficient process. Under the optimized conditions, an extraordinary tolerance of functional groups was observed, and numerous indoline derivatives were formed (see scheme).