Diazonium salt for thermosensitive recording medium
申请人:Oki Electric Industry Co., Ltd.
公开号:EP0816914A2
公开(公告)日:1998-01-07
A diazonium salt for a color-forming layer of a thermosensitive recording medium. This diazonium salt has the following formula (1) or (2)
wherein R is an alkyl group having two or more carbon atoms such as t-butyl or sec-butyl, and X- is selected from the group consisting of hexafluorophosphate ion PF6-, tetrafluoroborate ion BF4- and tetraphenylborate ion (C6H5)4B-.
where R1 and R2 are alkyl groups each having one or more carbon atoms, and X- is selected from the group consisting of hexafluorophosphate ion PF6-, tetrafluoroborate ion BF4- and tetraphenylborate ion (C6H5)4B-.
A Focused Library of Protein Tyrosine Phosphatase Inhibitors
作者:Anthony B. Comeau、David A. Critton、Rebecca Page、Christopher T. Seto
DOI:10.1021/jm100528p
日期:2010.9.23
Protein tyrosine phosphatases such as PTP1B and YopH are potential targets for the development of therapeutic agents against a variety of pathological conditions including diabetes, obesity, and infection by the bacterium Yersinia pestis. A focused library of bidentate a-ketoacid-based inhibitors has been screened against several tyrosine phosphatases. Compound 2a has IC(50) values of 43 and 220 nM against YopH and PTP1B, respectively, and shows a 30-fold selectivity for PTP1B over the closely related phosphatase TCPTP.