Pyridine and pyrimidine derivatives as mGIuR2 antagonists
申请人:McArthur Silvia Gatti
公开号:US20070232583A1
公开(公告)日:2007-10-04
The present invention relates to compounds of formula (I), a process for the manufacture thereof, pharmaceutical compositions containing them, and their use for treating CNS disorders:
wherein A, B, X, Y, R
1
, R
2
, R
3
and R
4
are as defined in the description and claims.
Photocatalytic Carbinol Cation/Anion Umpolung: Direct Addition of Aromatic Aldehydes and Ketones to Carbon Dioxide
作者:Shintaro Okumura、Yasuhiro Uozumi
DOI:10.1021/acs.orglett.1c02592
日期:2021.9.17
We have developed a new photocatalytic umpolung reaction of carbonyl compounds to generate anionic carbinol synthons. Aromaticaldehydes or ketones reacted with carbon dioxide in the presence of an iridium photocatalyst and 1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzimidazole (DMBI) as a reductant under visible-light irradiation to furnish the corresponding α-hydroxycarboxylic acids through nucleophilic
Metal‐bound water molecules have recently been recognized as a new facet of soft Lewis acid catalysis. Herein, a chiral palladium aqua complex was constructed that enables carbon–hydrogen bonds of indoles to be functionalized efficiently. We embraced a chiral 2,2′‐bipyridine as both ligand and hydrogen‐bond donor to configure a robust, yet highly Lewis acidic, chiral aqua complex in water. Whereas the
An asymmetric [3 + 2] cycloaddition reaction of vinyl epoxides with α,β-unsaturated ketones, the single activated electron-deficient alkenes, has been achieved under Pd-catalysis in excellent diastereo- and enantioselectivity. The utilities of the protocol are demonstrated by transformation of the products into other useful chiral molecules. Density functional theory calculations rationalize the stereocontrol
PYRIDINE AND PYRIMIDINE DERIVATIVES AS MGLUR 2 ANTAGONISTS
申请人:Gatti McArthur Silvia
公开号:US20090318474A1
公开(公告)日:2009-12-24
The present invention relates to compounds of formula (I), a process for the manufacture thereof, pharmaceutical compositions containing them, and their use for treating CNS disorders:
wherein A, B, X, Y, R
1
, R
2
, R
3
and R
4
are as defined in the description and claims.