PARTICLES COMPRISING AMPHIPHILIC COPOLYMERS, HAVING A CROSS-LINKED SHELL DOMAIN AND AN INTERIOR CORE DOMAIN, USEFUL FOR PHARMACEUTICAL AND OTHER APPLICATIONS
申请人:G.D. Searle & Co.
公开号:EP0907666A1
公开(公告)日:1999-04-14
[EN] PARTICLES COMPRISING AMPHIPHILIC COPOLYMERS, HAVING A CROSS-LINKED SHELL DOMAIN AND AN INTERIOR CORE DOMAIN, USEFUL FOR PHARMACEUTICAL AND OTHER APPLICATIONS<br/>[FR] PARTICULES COMPRENANT DES COPOLYMERES AMPHIPHILES, POSSEDANT UN DOMAINE D'ENVELOPPE RETICULEE ET UN DOMAINE DE NOYAU UTILES ET AUTRES DANS DES APPLICATIONS PHARMACEUTIQUES
申请人:——
公开号:WO1997049387A1
公开(公告)日:1997-12-31
[EN] Provided are particles comprising amphiphilic copolymers, having a cross-linked shell domain and an interior core domain. Also provided are compositions comprising such particles, including pharmaceutical compositions, methods of making the present particles, and methods of using such particles, for example for delivery of pharmaceutically active agents. [FR] L'invention concerne des particules comprenant des copolymères amphiphiles, possédant un domaine d'enveloppe réticulé et un domaine de noyau interne. Des compositions sont également décrites qui englobent de telles particules, y compris des compositions pharmaceutiques, des procédés de fabrication des présentes particules et des procédés d'utilisation de telles particules pour l'administation, par exemple, d'agents pharmacologiquement actifs.
[EN] PARTICLES COMPRISING AMPHIPHILIC COPOLYMERS, HAVING A CROSS-LINKED SHELL DOMAIN AND AN INTERIOR CORE DOMAIN, USEFUL FOR PHARMACEUTICAL AND OTHER APPLICATIONS<br/>[FR] PARTICULES COMPRENANT DES COPOLYMERES AMPHIPHILES, POSSEDANT UN DOMAINE DE RETICULATION CROISEE ET UN DOMAINE DE NOYAU INTERNE, UTILISABLES EN PHARMACOLOGIE ET AUTRES APPLICATIONS
申请人:——
公开号:WO1997049736A2
公开(公告)日:1997-12-31
[EN] Provided are methods of inhibiting bile acid uptake from the gastrointestinal system and reducing blood serum cholesterol by administering to a mammal, such as a human, an effective amount of particles comprising amphiphilic copolymers, having a cross-linked shell domain and an interior core domain. [FR] La présente invention fournit des méthodes d'inhibition des remontées d'acide biliaire du système gastro-intestinal et permet de réduire le cholestérol de sérum du sang en administrant à un mammifère, tel qu'un humain, une quantité efficace de particules comprenant des copolymères amphiphiles, possédant un domaine de réticulation croisée et un domaine de noyau interne.
A Novel Intramolecular Photocyclization ofN-(2-Bromoalkanoyl) Derivatives of 2-Acylanilinesvia 1,8-Hydrogen Abstraction
The photochemical reactions of different N-(2-acylphenyl)-2-bromo-2-methylpropanamides have been investigated. Irradiation of the N-unsubstituted anilides 1a–1c gave the corresponding dehydrobromination, cyclization, and bromo-migration products 2, 3, and 4, respectively (Table 1). Irradiation of the N-alkyl anilides 1e–1g afforded the corresponding deacylation and cyclization products 5 and 6, respectively
explained by a 6π-electron cyclization only. The formation of the open-chain amides 4e–4h probably follows a mechanism involving a 1,7-diradical, C and a spirolactam of type D (Scheme). Long-range ζ-H abstraction by the excited carbonyl O-atom of the benzoyl group on the aniline ring is expected to proceed via a nine-membered cyclic transition state, as proposed on the basis of X-ray crystallographic analyses