Base catalyzed Mitsunobu reactions as a tool for the synthesis of aryl sec-alkyl ethers
摘要:
A facile and versatile method for the synthesis of aryl sec-alkyl ethers from phenols with alcohols in the presence of base via a Mitsunobu reaction is described. (c) 2007 Elsevier Ltd. All rights reserved.
Polymer, positive resist composition, and pattern forming process
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US10191372B2
公开(公告)日:2019-01-29
A polymer comprising recurring units derived from vinylanthraquinone, recurring units derived from acid labile group-substituted hydroxystyrene, and recurring units derived from hydroxystyrene is provided. The polymer is used as a base resin to formulate a positive resist composition having a high resolution and minimal LER.
POLYMER, POSITIVE RESIST COMPOSITION, AND PATTERN FORMING PROCESS
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US20170343898A1
公开(公告)日:2017-11-30
A polymer comprising recurring units derived from vinylanthraquinone, recurring units derived from acid labile group-substituted hydroxystyrene, and recurring units derived from hydroxystyrene is provided. The polymer is used as a base resin to formulate a positive resist composition having a high resolution and minimal LER.
US4482489A
申请人:——
公开号:US4482489A
公开(公告)日:1984-11-13
US7205336B2
申请人:——
公开号:US7205336B2
公开(公告)日:2007-04-17
[EN] BETA-SECRETASE INHIBITORS<br/>[FR] INHIBITEURS DE BETA-SECRETASE
申请人:MERCK & CO INC
公开号:WO2003099202A2
公开(公告)日:2003-12-04
The present invention provides compounds that are inhibitors of the proteolytic activity of the enzyme β-secretase, pharmaceutically acceptable salts of the compounds, pharmaceutical compositions comprising the compounds, processes for making the compounds, and methods of using the compounds to treat Alzheimer s disease.