[EN] SPIRO[INDOLINE-[2,3']-BENZOXAZINE]-TYPE PHOTOCHROMIC COMPOUNDS CONTAINING A 6'-CYANO OR PHENYLSULPHONYL GROUP AND WITH A 7', 8'-CONDENSED BENZENE RING IN THE BENZOXAZINE RING AND USE OF SAME IN OPHTHALMIC OPTICS<br/>[FR] COMPOSES PHOTOCHROMIQUES DE STRUCTURE SPIRO[INDOLINE-[2,3']-BENZOXAZINE] A GROUPEMENT CYANO OU PHENYLSULFONYL EN 6' ET COMPORTANT UN CYCLE BENZENIQUE CONDENSE EN 7', 8' DU NOYAU BENZOXAZINE, ET LEUR UTILISATION DANS LE DOMAINE DE L'OPTIQUE OPHTALMIQUE
申请人:ESSILOR INTERNATIONAL COMPAGNIE GENERALE D'OPTIQUE
公开号:WO1996004590A1
公开(公告)日:1996-02-15
(EN) 6'-cyano or phenylsulphonyl-substitued spiro[indoline-[2,3']-benzoxazine]-type photochromic compounds, wherein said cyano or phenylsulphonyl group is bound to the 6' carbon atom by the sulphur atom, and having a 7', 8'-condensed benzene ring, and use of same in ophthalmic optics.(FR) L'invention est relative à des composés photochromiques de structure spiro[indoline-[2,3']-benzoxazine] substitués en position 6' par un groupement cyano ou phénylsulfonyl lié par l'atome de soufre au carbone en 6' et comportant un cycle benzénique condensé en 7', 8' et leur utilisation dans l'optique ophtalmique.
A synthetic access to photochromic spirooxazines is developed through the condensation of methylene-substituted azaheterocycles on 1-amino-2-naphthols in presence of an oxidizing agent. Compared to usual preparation of this kind of compounds (via 1-nitroso-2-naphthols), yields are generally good and approaches to Further spiroheterocyclic oxazines are possible. (C) 1997 Elsevier Science Ltd.
Kaempfen,H.X., Journal of Heterocyclic Chemistry, 1972, vol. 9, p. 303 - 307
作者:Kaempfen,H.X.
DOI:——
日期:——
Effect of peroxidase on the development of experimental leprosy in mice after intraplantar infection
作者:A. K. Maslov、O. V. Kalyanina
DOI:10.1007/bf02439810
日期:2000.5
Lyophilized horseradish peroxidase (activity 100 U/mg) administered per os in a dose of 100-200 mg/kg fodder enhanced bactericidal activity of phagocytes in mice experimentally infected with Mycobacterium leprae, which manifested in suppression of M. leprae growth in comparison with untreated controls.