Photophysical properties and photochemical activity of 6-X-5-nitroquinoxalines with electrondonor substituents (X = H, CH3, Cl, OC2H5, NH2) ortho to the nitro group were studied. The quantum yield of the formation of 5-hydroxyquinoxaline from the corresponding nitro derivative depends on the nature of the substituent and irradiation conditions. Phototransformations can go through nitro-nitrite rearrangement with the participation of two alternative T(pipi*) levels, depending on the size and electronic effects of the substituent. The latter factor is largely determined by the population on excitation of different charge-transfer states involving the nitro group.
Photophysical properties and photochemical activity of 6-X-5-nitroquinoxalines with electrondonor substituents (X = H, CH3, Cl, OC2H5, NH2) ortho to the nitro group were studied. The quantum yield of the formation of 5-hydroxyquinoxaline from the corresponding nitro derivative depends on the nature of the substituent and irradiation conditions. Phototransformations can go through nitro-nitrite rearrangement with the participation of two alternative T(pipi*) levels, depending on the size and electronic effects of the substituent. The latter factor is largely determined by the population on excitation of different charge-transfer states involving the nitro group.
[EN] N2-PHENYLPYRIMIDINE-2,4-DIAMINE COMPOUNDS, AND PREPARATION METHODS AND METHODS OF USE THEREOF<br/>[FR] COMPOSÉS DE N2-PHÉNYLPYRIMIDINE-2,4-DIAMINE ET PROCÉDÉS DE PRÉPARATION ET PROCÉDÉS D'UTILISATION CORRESPONDANTS
申请人:BRIDGE BIOTHERAPEUTICS INC
公开号:WO2022208454A1
公开(公告)日:2022-10-06
The present disclosure relates to novel N2-phenylpyrimidine-2,4-diamine compounds, method for preparing the same, and pharmaceutical composition or health functional food for the prevention or treatment of cancer, containing the same as an active ingredient. The novel N2- phenylpyrimidine-2,4-diamine compounds show potent inhibitory efficacies on EGFR mutations and thus, can be effectively used for the treatment of cancer with EGFR mutations.
Substituted 1,10-Phenanthrolines. XI. Aza Derivatives<sup>1</sup>
作者:Francis H. Case、James A. Brennan
DOI:10.1021/ja01532a046
日期:1959.12
DÉRIVÉS AMINO-QUINOXALINES POUR LE TRAITEMENT DE MALADIES NEURODÉGÉNÉRATIVES
申请人:Centre National de la Recherche Scientifique
(C.N.R.S.)
公开号:EP2691377B1
公开(公告)日:2018-03-07
AMINOQUINOXALINE DERIVATIVES FOR TREATMENT OF NEURODEGENERATIVE DISEASES
申请人:Ferrie Laurent
公开号:US20140113903A1
公开(公告)日:2014-04-24
The present invention relates to compounds of formula (I) below: for which: —X represents a hydrogen atom, a halogen atom, a group NO
2
or NH
2
, —R
0
represents H or —CH
2
—C≡CH, and —R
1
and R
2
each represent, independently of one another, a hydrogen atom; a saturated or unsaturated, linear or branched hydrocarbon-based chain comprising from 1 to 10 carbon atoms; or an optionally substituted aryl group, and also the pharmaceutically acceptable salts thereof, the stereoisomers thereof or mixtures of stereoisomers thereof in any proportion, in particular for use thereof as a medicament, in particular in the treatment or prevention of neurodegenerative diseases, and also the processes for the preparation thereof and the pharmaceutical compositions comprising same.