Benzoxazole Resin Precursor, Polybenzoxazole Resin, Resin Film And Semiconductor Device
申请人:Enoki Takashi
公开号:US20080206548A1
公开(公告)日:2008-08-28
A benzoxazole resin precursor comprising a first repeating unit which is obtained by the reaction of a bisaminophenol compound and a dicarboxylic acid compound, at least one of which has the diamondoid structure; a benzoxazole resin precursor further comprising a second repeating unit which is obtained by the reaction of a bisaminophenol compound having no diamondoid structure and a dicarboxylic acid compound having no diamondoid structure; a polybenzoxazole resin obtained by the ring-closing reaction with dehydration of the above benzoxazole resin precursor; a resin film constituted with the benzoxazole resin precursor or the polybenzoxazole resin. A polybenzoxazole resin and a resin film having excellent heat resistance and a small permittivity and a semiconductor device using the resin film can be obtained from the benzoxazole resin precursor.
BENZOXAZOLE RESIN PRECURSOR, POLYBENZOXAZOLE RESIN, RESIN FILM, AND SEMICONDUCTOR DEVICE
申请人:Sumitomo Bakelite Company, Limited
公开号:EP1832619A1
公开(公告)日:2007-09-12
A benzoxazole resin precursor comprising a first repeating unit which is obtained by the reaction of a bisaminophenol compound and a dicarboxylic acid compound, at least one of which has the diamondoid structure; a benzoxazole resin precursor further comprising a second repeating unit which is obtained by the reaction of a bisaminophenol compound having no diamondoid structure and a dicarboxylic acid compound having no diamondoid structure; a polybenzoxazole resin obtained by the ring-closing reaction with dehydration of the above benzoxazole resin precursor; a resin film constituted with the benzoxazole resin precursor or the polybenzoxazole resin. A polybenzoxazole resin and a resin film having excellent heat resistance and a small permittivity and a semiconductor device using the resin film can be obtained from the benzoxazole resin precursor.
Identification of Promiscuous Small Molecule Activators in High-Throughput Enzyme Activation Screens
作者:David R. Goode、Ryan K. Totten、James T. Heeres、Paul J. Hergenrother
DOI:10.1021/jm701583b
日期:2008.4.1
It is recognized that high-throughput enzyme inhibition screens often return nonspecific inhibitors as. "hits". Recently, high-throughput screens for enzyme activators have led to the identification of several compounds with novel and potent biological activity. Here, we show that enzyme activation screens can also uncover compounds that activate multiple enzymes in a nonspecific fashion. Described herein are the general structural features of such compounds and methods to differentiate between specific and general enzyme activation.
KOSHCHIJ, V. A.;KOZLIKOVSKIJ, YA. B.;RODIONOV, V. N.;OLIFIROV, D. I., YKP. XIM. ZH., 55,(1989) N0, S. 1067-1070
作者:KOSHCHIJ, V. A.、KOZLIKOVSKIJ, YA. B.、RODIONOV, V. N.、OLIFIROV, D. I.