Tertiary alkyl, allylic and benzylic halides react with zinc thiolacetate, prepared in situ, under optimised conditions to yield the corresponding thiolacetates in moderate to good yields.
MONOMER, POLYMER, RESIST COMPOSITION, AND PATTERNING PROCESS
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:US20150322027A1
公开(公告)日:2015-11-12
A monomer (1) is prepared by reacting a compound (9) with a base or metal to form a metal enolate reagent, and reacting the metal enolate reagent with an acyloxyketone compound (8). A polymer derived from the monomer is used as base resin to formulate a resist composition, which is shelf stable and displays a high dissolution contrast, controlled acid diffusion and low roughness in forming positive pattern via alkaline development and in forming negative pattern via organic solvent development.
[EN] PYRAZOLO-PYRROLIDIN-4-ONE DERIVATIVES AS BET INHIBITORS AND THEIR USE IN THE TREATMENT OF DISEASE<br/>[FR] DÉRIVÉS DE PYRAZOLOPYRROLIDINE-4-ONE EN TANT QU'INHIBITEURS DE BET ET LEUR UTILISATION DANS LE TRAITEMENT DE MALADIES
申请人:NOVARTIS AG
公开号:WO2014191906A1
公开(公告)日:2014-12-04
The present invention provides a compound of formula (I) or a pharmaceutically acceptable salt thereof; (l) a method for manufacturing the compounds of the invention, and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition.
Abstract Carboxylic esters and thioacetates were conveniently prepared in good to excellent yields under mild conditions by the reaction of alkyl halides with sodium carboxylates or sodium thioacetate catalyzed by PEG400 in the absence of solvents.
The (polyenoyl)tetramicacid militarinone C (1) heads a family of seven members. Before our work, the configuration of C-5 was unknown whereas the configurations of C-8′ and C-10′ were either (R,R) or (S,S). We synthesized the four stereoisomers of constitution 1, which conform with these insights. This included cross-coupling both enantiomers of the western building block (8) with both enantiomers