[EN] AZABICYCLO AND DIAZEPINE DERIVATIVES FOR TREATING OCULAR DISORDERS [FR] DÉRIVÉS D'AZABICYCLO ET DE DIAZÉPINE POUR LE TRAITEMENT DE TROUBLES OCULAIRES
[EN] AZABICYCLO AND DIAZEPINE DERIVATIVES FOR TREATING OCULAR DISORDERS [FR] DÉRIVÉS D'AZABICYCLO ET DE DIAZÉPINE POUR LE TRAITEMENT DE TROUBLES OCULAIRES
This invention relates to new tetronic and tetramic acid derivatives with beta-secretase inhibitory activity of formula I:
wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
5′
, R
6
and R
6′
are as defined hereinabove, to processes for their preparation, compositions containing said tetronic and tetramic acid derivatives and their use in the treatment and prevention of diseases modulated by an inhibitor of β-secretase, such as Alzheimer's disease.
This invention relates to new tetronic and tetramic acid derivatives with beta-secretase inhibitory activity of formula I:
wherein R1, R2, R3, R4, R5, R5′, R6 and R6′ are as defined hereinabove, to processes for their preparation, compositions containing said tetronic and tetramic acid derivatives and their use in the treatment and prevention of diseases modulated by an inhibitor of β-secretase, such as Alzheimer's disease.
Reactions of chlorine substituted (E)-2,3-diphenylpropenoic acids over cinchonidine-modified Pd: Enantioselective hydrogenation versus hydrodechlorination
The effect of the chlorine position on the C-Cl bond hydrogenolysis and the enantioselective hydrogenation of Cl substituted (E)-2,3-diphenylpropenoic acid derivatives has been studied over cinchonidine-modified Pd/Al2O3. In contrast to the fast hydrodechlorination of the beta-phenyl-para-Cl substituted acids the Cl on the alpha-phenyl ring was barely hydrogenolized. These observations were interpreted by the different arrangements of the two phenyl rings on the surface, with the alpha- and beta-phenyl rings adsorbed tilted and parallel, respectively. The results confirmed the beneficial effect of the alpha-phenyl-ortho-substituents on the chiral discrimination, thus the 2,3-diphenylpropionic acids substituted by Cl on the alpha-phenyl ring could be prepared in good yields and optical purities. The conclusions were used for the rational design of an acid, i.e. (E)-2-(2-methoxyphenyl)-3-(3,4-difluorophenyl)propenoic acid, which afforded the best optical purity (ee up to 95% at 295 K) described until now in this heterogeneous system. (C) 2010 Elsevier B.V. All rights reserved.
AZABICYCLO AND DIAZEPINE DERIVATIVES
申请人:Alcon Inc.
公开号:US20210179616A1
公开(公告)日:2021-06-17
The present invention provides in one aspect azabicyclo and diazepine derivatives useful as modulators of muscarinic receptors. In another aspect, the present invention provides pharmaceutical compositions for treating ocular diseases, the compositions comprising at least one muscarinic receptor modulator.
[EN] AZABICYCLO AND DIAZEPINE DERIVATIVES FOR TREATING OCULAR DISORDERS<br/>[FR] DÉRIVÉS D'AZABICYCLO ET DE DIAZÉPINE POUR LE TRAITEMENT DE TROUBLES OCULAIRES
申请人:NOVARTIS AG
公开号:WO2019087146A1
公开(公告)日:2019-05-09
The present invention provides in one aspect azabicycio and diazepine derivatives useful as modulators of muscarinic receptors. In another aspect, the present invention provides pharmaceutical compositions for treating ocular diseases, the compositions comprising at least one muscarinic receptor modulator. Formulae (I) & (II):