An iron-catalyzed allyation of isoquinoline with potassium allyltrifluoroborate is described. The operation of this reaction is very simple and highly practical. The diastereoisomer having two adjacent chiral centers were obtained in single anti-configuration.
Substituted pyrazolopyrimidines, a process for their preparation and their use as medicine
申请人:Danysz Wojciech
公开号:US20080039458A1
公开(公告)日:2008-02-14
Substituted pyrazolopyrimidine derivatives of formula (I)
wherein
Y
1
, Y
2
, Y
3
, Y
4
represent N or C—, whereby at least two of the groups Y
1
to Y
4
represent a carbon atom, R
1
represents chloro or bromo,
R
2
to R
7
represent e.g. hydrogen, methyl or ethyl; and
R
10
and R
11
independently represent e.g. hydrogen or C
1
-C
6
alkyl, are potent mGluR5 modulators and are useful for the prevention of acute and chronic neurological disorders.
Substituted pyrazolopyrimidine derivatives of formula (I)
wherein
Y
1
, Y
2
, Y
3
, Y
4
represent N or C—, whereby at least two of the groups Y
1
to Y
4
represent a carbon atom, R
1
represents chloro or bromo,
R
2
to R7 represent e.g. hydrogen, methyl or ethyl; and
R
10
and R
11
independently represent e.g. hydrogen or C
1
-C
6
alkyl,
are potent mGluR5 modulators and are useful for the prevention of acute and chronic neurological disorders.
6-halo-pyrazolo[1,5-a]pyridines, a process for their preparation and their use as metabotropic glutamate receptor (mGluR) modulators
申请人:Merz Pharma GmbH & Co. KGaA
公开号:EP2090576A1
公开(公告)日:2009-08-19
The invention relates to 6-halo-pyrazolo[1,5-a]pyridines of formula (I) as well as their pharmaceutically acceptable salts. The invention further relates to a process for the preparation of such compounds. The compounds of the invention are mGluR5 modulators and are therefore useful for the control and prevention of acute and/or chronic neurological disorders.
wherein A represents -NR3R4
with R3 and R4 as described herein.
作者:Young Ae Yoon、Chan Sun Park、Myung Hun Cha、Hyunho Choi、Jae Young Sim、Jae Gyu Kim
DOI:10.1016/j.bmcl.2010.08.007
日期:2010.10
A series of pyrimidine derivatives as acid pump antagonists (APAs) was synthesized and the inhibitory activities against H+/K+ ATPase isolated from hog gastric mucosa were determined. After elaborating on substituents at C2 and C4 position of the pyrimidine scaffold, we have observed that the compound 7h is a potent APA with H+/K+ ATPase, IC50 = 52 nM. (C) 2010 Elsevier Ltd. All rights reserved.