BIODEGRADABLE ORGANIC RADICAL-FUNCTIONALIZED POLYCARBONATES FOR MEDICAL APPLICATIONS
申请人:International Business Machines Corporation
公开号:US20160220705A1
公开(公告)日:2016-08-04
Paramagnetic, amphiphilic, biocompatible polymers were prepared comprising a carbonate repeat unit bearing a paramagnetic organic radical, more specifically a nitroxyl radical. The radical polymers can be produced in one step from a precursor polymer bearing an active ester side chain by treating the precursor polymer with a radical-bearing nucleophile. The precursor polymer can be prepared by organocatalyzed catalyzed ring opening polymerization (ROP) of a cyclic carbonate monomer bearing an active ester side chain. The radical polymers can be non-toxic and partially biodegradable. The radical polymers have utility as contrast enhancing agents in a medical imaging application and/or as therapeutic agents for treating a medical condition. The radical polymers can also serve as carriers for therapeutic agents (e.g., drugs) and/or medical image enhancing agents (e.g., NIRF dyes).
An investigation of methods to efficiently prepare activated N-methylcarbamates is reported. N-(Methylcarbamoyloxy)succinimide (3a), aryl N-methylcarbamates 3b-d and 2,2,2-trifluoro-1-(trifluoromethyl)ethyl N-methylcarbamate (3e) have been prepared in 70-80% yields from the corresponding chloroformates 5a-e, which were prepared as crystalline solids by the condensation of trichloromethyl chloroformate (1) or bis(trichloromethyl) carbonate (2) with hydroxy compounds 4a-e in high yields.
[EN] TETRAHYDRONAPHTHYRIDINE, BENZOXAZINE, AZA-BENZOXAZINE, AND RELATED BICYCLIC COMPOUNDS FOR INHIBITION OF RORgamma ACTIVITY AND THE TREATMENT OF DISEASE<br/>[FR] TÉTRAHYDRONAPHTYRIDINE, BENZOXAZINE, AZA-BENZOXAZINE ET COMPOSÉS BICYCLIQUES APPARENTÉS POUR L'INHIBITION DE L'ACTIVITÉ DE RORGAMMA ET LE TRAITEMENT DE MALADIE
申请人:MERCK SHARP & DOHME
公开号:WO2015095795A1
公开(公告)日:2015-06-25
The invention provides certain bicylic heterocyclic compounds of the Formula (I) or pharmaceutically acceptable salts thereof, wherein X1, X2, R1, R2, R3, R4, and Cy are as defined herein. The invention also provides pharmaceutical compositions comprising such compounds of the Formula (I) or pharmaceutically acceptable salts thereof, and methods of using the compounds of the Formula (I) or pharmaceutically acceptable salts thereof or pharmaceutical compositions comprising the same for treating diseases or conditions mediated by RORgammaT.
A novel class of derivatives of resveratrol is provided which have favourable physico-chemical properties when compared with resveratrol itself. It is characterized by the presence of three carbamate functions, in which resveratrol is the oxygen-linked moiety, while the nitrogen atom carries a substituent conferring desirable characteristics to the molecule. These new compounds are especially suitable as precursors (prodrugs) and vehicles of resveratrol in preparations used as dietary integrators or in pharmaceutical compositions: they are stable towards oxidative degradation allowing for long shelf lifetimes and have suitable reactivity to regenerate and deliver resveratrol under physiological conditions.
The present invention includes compounds useful as modulators of TRPM8, such as compounds of Formulae (Ia), (Ib) and (Ic), and the subgenus and species thereof; personal products containing those compounds; and the use of those compounds and the personal products, particularly the use of increasing or inducing chemesthetic sensations, such as cooling or cold sensations.