[EN] PHOSPHITE STABILIZER FOR LUBRICATING BASE STOCKS AND THERMOPLASTIC POLYMERS<br/>[FR] STABILISANT DU TYPE PHOSPHITE POUR BASES LUBRIFIANTES ET POLYMÈRES THERMOPLASTIQUES
申请人:CHEMTURA CORP
公开号:WO2009158078A1
公开(公告)日:2009-12-30
A substituted phosphite suitable for lubricating base stocks and thermoplastic polymers represented by the structure: wherein R1 is selected from the group consisting of C1-C22 alkyl and C4-C22 cycloalkyl; R2 and R3 are selected to form a C5-C18 aryl; and R4 and R5 are selected from the group consisting of H, C1 -C22 alkyl, C2-C22 alkenyl, C4-C22; cycloalkyl and C5-C8 aryl. The substituted phosphite may be combined with at least one primary antioxidant as well as other additives.
Polymer compositions containing benzimidazole based stabilizer compounds
申请人:——
公开号:US20040180995A1
公开(公告)日:2004-09-16
The invention discloses a stabilised resin composition comprising a thermoplastic resin and a stabilizing benzimidazole based additive compound. In a second embodiment, the invention discloses a method to make a stabilized composition comprising a benzimidazole based stabilising compound and a resin, said method comprising mixing said benzimidazole based stabilising compound with said resin.
Alpha acyloxyacetamides for kallikrein and urokinase inhibition
申请人:Genzyme Corporation
公开号:US20040044075A1
公开(公告)日:2004-03-04
Disclosed herein is a compound represented by Structural Formula (I):
1
R
1
is a substituted or unsubstituted aryl group or alkyl group; R
2
is a substituted or unsubstituted aryl group or cycloalkyl group; Ar is a substituted or unsubstituted aryl group; X is a —CH
2
—, —O—, —S— or —CO—; m is an integer from zero to two; n is an integer from 0-2 when X is —O—, —S— and 1-2 when X is —CH
2
— or —CO—.
Also disclosed are methods of inhibiting kallikrein activity or urokinase activity in subject in need of such inhibition by administering a compound represented by Structural Formula (I).
Synthesis and Structure−Activity Relationship Studies for Hydantoins and Analogues as Voltage-Gated Sodium Channel Ligands
作者:Congxiang Zha、George B. Brown、Wayne J. Brouillette
DOI:10.1021/jm040077o
日期:2004.12.1
We previously developed a preliminary 3-D QSAR model for the binding of 14 hydantoins to the neuronal voltage-gated sodium channel; this model was successful in designing,an effective non-hydantoin ligand. To further understand structural features that result in optimum binding. here we synthesized a variety of compound classes and evaluated their binding affinities to the neuronal voltage-gated sodium channel using the [H-3]-batrachotoxinin A 20-a-benzoate ([H-3]BTX-B) binding assay. In order to understand the importance of the hydantoin ring for good sodium channel binding, related non-hydantoins such as hydroxy amides, oxazolidinediones, hydroxy acids, and amino acids were included. Two major conclusions were drawn: (1) The hydantoin ring is not critical for compounds with long alkyl side chains, but it is important for compounds with shorter side chains. (2) Relative to Khodorov's pharmacophore. which contains two hydrophobic regions, a third hydrophobic region may enhance binding to provide nanomolar inhibitors.