the presence of m-chloroperoxybenzoic acid to give substituted arenes as cycloadducts. Alternatively, thiophene S-oxides have been prepared by oxidation from thiophenes and have been subjected to cycloaddition with alkynes in a subsequent step. The outcome of the reaction is dependent on the steric demand of the thiophene S-oxide. Some thiophene S-oxides can be reacted at temperatures as high as 140°C
SULFONYL PYRROLIDINES, METHOD FOR PRODUCING THE SAME AND THEIR USE AS DRUGS
申请人:Keil Stefanie
公开号:US20080045540A1
公开(公告)日:2008-02-21
The invention relates to substituted sulfonylpyrrolidines of the formula I
and to the physiologically tolerated salts thereof, as well as to their use as medicaments.
该发明涉及公式I的取代磺酰吡咯烷化合物及其生理耐受盐,以及它们作为药物的用途。
BENZODIAZEPINE COMPOUND AND PHARMACEUTICAL COMPOSITION
申请人:Oshima Kunio
公开号:US20130040941A1
公开(公告)日:2013-02-14
The present invention provides a novel benzodiazepine compound that blocks the I
Kur
current or the Kv1.5 channel potently and more selectively than other K
+
channels. The benzodiazepine compound of the invention is represented by General Formula (1)
wherein R
1
, R
2
, R
3
, and R
4
are each independently hydrogen or lower alkyl; R
2
and R
3
may be linked to form lower alkylene;
A
1
is lower alkylene optionally substituted with one or more hydroxy; and
R
5
is group represented by
wherein R
6
and R
7
are each independently hydrogen or organic group;
X
A
and X
B
are each independently bond, lower alkylene, etc.