4-Chromenonyl-1,4-dihydropyridinecarbonitriles and the use thereof
申请人:Kuhl Alexander
公开号:US20090214675A1
公开(公告)日:2009-08-27
The present application relates to novel 4-chromenonyl-1,4-dihydropyridinecarbonitriles, processes for their preparation, pharmaceutical compositions containing them, and their use for the treatment and/or prophylaxis of diseases, especially cardiovascular disorders.
Catalytic enantioselective synthesis of tetrasubstituted chromanones <i>via</i> palladium-catalyzed asymmetric conjugate arylation using chiral pyridine-dihydroisoquinoline ligands
作者:Doohyun Baek、Huijeong Ryu、Ji Yeon Ryu、Junseong Lee、Brian M. Stoltz、Sukwon Hong
DOI:10.1039/d0sc00412j
日期:——
Highly enantioselectiveconjugateaddition reactions of arylboronicacids to 2-substituted chromones catalyzed by palladium complexes with new chiral Pyridine-Dihydroisoquinoline (PyDHIQ) ligands have been developed. These reactions provide highly enantioselective access to chromanones containing tetrasubstituted stereocenters. Various arylboronicacids and 2-substituted chromones can be used in the
A highly enantioselective access to chiral chromanones and thiochromanones via copper-catalyzed asymmetric conjugated reduction of chromones and thiochromones
作者:Donglu Xiong、Wenxi Zhou、Zhiwu Lu、Suping Zeng、Jun (Joelle) Wang
DOI:10.1039/c7cc03939e
日期:——
chemistry and drug discovery. A highly efficient copper-catalyzed asymmetric conjugated reduction of chromones is developed to give chiral chromanones with good yields (80–99%) and excellent ee values (94–>99% ee). Particularly noteworthy is that chiral thiochromanones are also constructed using this method in 74–87% yields with 96–97% ee. The established asymmetric synthesis paves the way for their
The present invention relates to a process for preparing Nebivolol and, more particularly, to an improved process for synthesizing enantiomerically enriched 6-fluoro chroman alcohol or epoxide derivatives of formula, wherein R and X is defined in the description; as useful intermediates in the preparation of Nebivolol.
QUINOLONE DERIVATIVE OR PHARMACEUTICALLY ACCEPTABLE SALT THEREOF
申请人:KOGA Yuji
公开号:US20120136025A1
公开(公告)日:2012-05-31
Disclosed are quinolone derivatives characterized in that these have lower alkyl, cycloalkyl or the like at the 1-position; —N(R
0
)C(O)-lower alkylene-CO
2
R
0
, lower alkylene-CO
2
R
0
, lower alkenylene-CO
2
R
0
, —O-lower alkylene-CO
2
R
0
, —O-(lower alkylene which may be substituted with —CO
2
R
0
)-aryl or —O-lower alkenylene-CO
2
R
0
(wherein R
0
is H or lower alkyl) at the 3-position; halogen at the 6-position; and amino group substituted with a substituent group having a ring structure at the 7-position, respectively, or pharmaceutically acceptable salts thereof, has excellent P2Y12 inhibitory activity. The quinolone derivatives have excellent platelet aggregation inhibitory activity. A method of using the compounds is also disclosed.