Palladium-Catalyzed α-Arylation of Esters and Amides under More Neutral Conditions
作者:Takuo Hama、Xiaoxiang Liu、Darcy A. Culkin、John F. Hartwig
DOI:10.1021/ja036792p
日期:2003.9.1
aryl halides with alkalimetal enolates are reported. The first procedure rests upon the development of catalysts bearing the hindered pentaphenylferrocenyl di-tert-butylphosphine (Q-phos) and the highly reactive dimeric Pd(I) complex P(t-Bu)3]PdBr}2. By this procedure, zinc enolates prepared from α-bromo esters and amides react with aryl halides to form α-aryl esters and amides in high yields under
Coupling of Reformatsky Reagents with Aryl Chlorides Enabled by Ylide‐Functionalized Phosphine Ligands
作者:Zhiyong Hu、Xiao‐Jing Wei、Jens Handelmann、Ann‐Katrin Seitz、Ilja Rodstein、Viktoria H. Gessner、Lukas J. Gooßen
DOI:10.1002/anie.202016048
日期:2021.3.15
organozinc reagents with aryl electrophiles using a cyclohexyl‐YPhos ligand bearing an ortho‐tolyl‐substituent in the backbone. This highly electron‐rich, bulky ligand enables the use of arylchlorides in room temperature couplings of Reformatsky reagents. The reaction scope covers diversely functionalized arylacetic and arylpropionic acid derivatives. Aryl bromides and chlorides can be converted selectively
4-[(8-Ethynyl, 8-vinyl or 8-ethynyl-methyl)-6-chromanoyl]-benzoic and 2-[4-[(8-ethynyl, 8-vinyl or 8-ethynyl-methyl)-6-chromanoyl]-phenyl]-acetic acid, their esters and salts having cytochrome P450RAI inhibitory activity
申请人:——
公开号:US20030191181A1
公开(公告)日:2003-10-09
Compounds of Formula 1
1
wherein the variables are defined in the specification have cytochrome P450RAI-1 and P450RAI-2 inhibitory activity, and are suitable for treatment of mammals with conditions which are treatable with retinoids, or which are controlled by or responsive to the organism's native retinoic acid. Formulations containing the compounds of the invention can also be co-administered with retinoids and/or Vitamin A to enhance or prolong the effects of medications containing retinoids, Vitamin A, or of the organism's native retinoic acid.
The present invention relates to a compound formula [I]:
1
wherein
R
1
is hydrogen or halogen,
R
2
is hydrogen or an amino protective group,
R
3
is hydrogen or lower alkyl,
X is bond, —CH
2
— or —O—, and
Y is
2
in which R
4
is lower alkoxycarbonyl,
3
in which R
5
is carboxy(lower)alkyl, etc.,
4
in which R
6
is hydroxy, etc., and so on,
or a salt thereof. The compound [I] of the present invention and pharmaceutically acceptable salts thereof are useful for the prophylactic and/or the therapeutic treatment of pollakiurea or urinary incontinence.
本发明涉及一种化合物公式[I]:
1
其中
R
1
为氢或卤素,
R
2
为氢或氨基保护基,
R
3
为氢或低碳基,
X为键,-CH
2
-或-O-,以及
Y为
2
其中R
4
为低碳氧羰基,
3
其中R
5
为羧基(低)烷基等,
4
其中R
6
为羟基等,等等,
或其盐。本发明的化合物[I]及其药学上可接受的盐对于预防和/或治疗尿频或尿失禁具有用处。
[EN] AMINOALCOHOL DERIVATIVES AND THEIR USE AS BETA-3 ADRENERGIC RECEPTOR AGONISTS<br/>[FR] DERIVES AMINOALCOOLIQUES ET LEUR UTILISATION COMME AGONISTES DE RECEPTEUR BETA-3 ADRENERGIQUE
申请人:FUJISAWA PHARMACEUTICAL CO
公开号:WO2004045610A1
公开(公告)日:2004-06-03
The present invention relates to a compound formula [I] or a salt thereof. The compound [I] of the present invention and pharmaceutically acceptable salts thereof are useful for the prophylactic and/or the therapeutic treatment of pollakiurea or urinary incontinence.