Stereocontrolled Synthesis of a Complex Library via Elaboration of Angular Epoxyquinol Scaffolds
作者:Xiaoguang Lei、Nava Zaarur、Michael Y. Sherman、John A. Porco
DOI:10.1021/jo050956y
日期:2005.8.1
We have accomplished the synthesis of a complex chemical library via elaboration of angular epoxyquinol scaffolds with distinct skeletal frameworks. The key strategy involves highly stereocontrolled [4 + 2] Diels-Alder cycloadditions of chiral, nonracemic epoxyquinol dienes to generate the scaffolds. Further scaffold diversification involves hydrogenation, epimerization, dehydration, and condensation of the carbonyl group with alkoxyamine and carbazate building blocks. Further elaboration of the scaffolds also provided new skeletal frameworks using hydroxyl-directed Diels-Alder cycloaddition and reductive N-N bond cleavage. The overall process afforded 244 highly complex and functionalized compounds. Preliminary biological screening of the library uncovered six compounds which showed significant inhibition of Hsp 72 induction.
ANIONIC CURABLE COMPOSITIONS
申请人:Designer Molecules, Inc.
公开号:EP3331959A1
公开(公告)日:2018-06-13
COMPOSITIONS COMPRISING A REACTIVE MONOMER AND USES THEREOF
申请人:Hood David K.
公开号:US20130025495A1
公开(公告)日:2013-01-31
Disclosed herein are compositions such as ink or coating compositions that include at least one reactive monomer that includes a maleimide of the general formula (I) A- is or includes an aryl, an alkylaryl, or an arylalkyl. The reactive monomer may be or include 4-butylphenyl maleimide. The composition may also include a reactive co-solvent that may include at least one of a (meth)acryl monomer or prepolymer, a (meth)acryl ester of an epoxy type monomer or prepolymer, and a urethane type monomer or prepolymer.
METHOD FOR DOUBLE STRAND SEQUENCING
申请人:Oxford Nanopore Technologies PLC
公开号:US20220389481A1
公开(公告)日:2022-12-08
Provided herein is a method of sequencing a target double stranded nucleic acid. The method comprises contacting the double stranded nucleic acid with a reagent as described herein to form a construct and sequencing the construct using a single-molecule sequencing technique as described herein. Associated products and kits are further provided.
The present invention provides compositions, including die attach adhesives, coatings and underfill materials, which are useful in electronics packaging and the composite fields. Specifically, the invention provides liquid and very low melting epoxy-maleimide compositions that co-cure upon the addition of an anionic cure catalyst in the absence of any other cure catalyst.