Cross-linkers for cross-linkable optical polycarbonates
申请人:JDS Uniphase Photonics C.V.
公开号:US06232430B1
公开(公告)日:2001-05-15
The invention pertains to a cross-linker of the formula
wherein
n is 0 or 1;
m is 0 or 1;
R is
and R1 is independently OH or —CO—O(hydroxyphenyl), or of the formula
with the proviso that 3,4-dihydroxyphenylmaleimide is excluded. The invention further pertains to cross-linked optical polycarbonate and optical articles obtainable by cross-linking a polycarbonate with this cross-linker or with 3,4-dihydroxyphenylmaleimide.
The invention provides compounds, pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with the activity of the Peroxisome Proliferator-Activated Receptor (PPAR) families, particularly the activity of PPAR.
Evaluation of a new linker system cleaved using samarium(ii) iodide. Application in the solid phase synthesis of carbonyl compounds
作者:Fiona McKerlie、Iain M. Rudkin、Graham Wynne、David J. Procter
DOI:10.1039/b506294b
日期:——
A new linker design for solidphasesynthesis has been developed that is cleaved under mild, neutral conditions using samarium(II) iodide. The feasibility of the linker approach has been illustrated in the solidphasesynthesis of ketones and amides using an oxygen linker. Insights into the mechanism of the samarium(II) iodide cleavage reaction are described and the potential of a sequential cleavage