Effects of Electronics, Aromaticity, and Solvent Polarity on the Rate of Azaquinone–Methide-Mediated Depolymerization of Aromatic Carbamate Oligomers
摘要:
This paper uses physical-organic studies on well-defined oligomers to establish design principles for creating aromatic poly(carbamates) that depolymerize from head-to-tail in low dielectric constant environments when exposed to specific applied signals. We show that either increasing electron density or decreasing the aromaticity of aromatic repeating units in poly(carbamates) increase the overall depolymerization rate. For example, a methoxybenzene-based repeating unit provides depolymerization rates that are 143X faster than oligomers that contain a benzene-based repeating unit. Furthermore, the rate of depolymerization in the methoxybenzene-based system is tolerant to low dielectric environments, whereas the benzene-based oligomers are not.
[EN] PYRROLONE OR PYRROLIDINONE MELANIN CONCENTRATING HORMONE RECEPTOR-1 ANTAGONISTS [FR] ANTAGONISTES DU RÉCEPTEUR 1 D'HORMONE CONCENTRANT LA MÉLANINE DE TYPE PYRROLONE OU PYRROLIDINONE
PYRROLONE OR PYRROLIDINONE MELANIN CONCENTRATING HORMONE RECEPTOR-1 ANTAGONISTS
申请人:Bristol-Myers Squibb Company
公开号:US20150218092A1
公开(公告)日:2015-08-06
The present invention provides compounds of Formula (I): as defined in the specification and compositions comprising any of such novel compounds. These compounds are melanin concentrating hormone receptor-1 (MCHR1) antagonists which may be used as medicaments.