Different sensitivities to competitive inhibition of benzodiazepine receptor binding of11C-iomazenil and11C-flumazenil in rhesus monkey brain
摘要:
The in vivo binding kinetics of C-11-iomazenil were compared with those of C-11-flumazenil binding in rhesus monkey brain. The monkey was anesthetized with ketamine and intravenously injected with either C-11-iomazenil or C-11-flumazenil in combination with the coadministration of different doses of non-radioactive flumazenil (0, 5 and 20 mug/kg). The regional distribution of C-11-iomazenil in the brain was similar to that of C-11-flumazenil. but the sensitivity of C-11-iomazenil binding to competitive inhibition by non-radioactive flumazenil was much less than that of C-11-flumazenil binding. A significant reduction in C-11-flumazenil binding in the cerebral cortex was observed with 20 mug/kg of flumazenil, whereas a relatively smaller inhibition of C-11-iomazenil binding in the same region was observed with the same dose of flumazenil. These results suggest that C-11-flumazenil may be a superior radiotracer for estimating benzodiazepine receptor occupancy in the intact brain.
3-heteroarylidene-2-indolinone protein kinase inhibitors
申请人:Sugen, Inc.
公开号:US06486185B1
公开(公告)日:2002-11-26
The present invention relates to novel 3-heteroarylidene-2-indolinone compounds and physiologically acceptable salts thereof which modulate the activity of protein kinases and therefore are expected to be useful in the prevention and treatment of protein kinase related cellular disorders such as cancer.
3-(cycloalkanoheteroarylidenyl)-2-indolinone protein tyrosine kinase inhibitors
申请人:Sugen, Inc.
公开号:US06350754B2
公开(公告)日:2002-02-26
The present invention relates to novel 3-(cycloalkano-heteroarylidenyl)-2-indolinone compounds and physiologically acceptable salts and prodrugs thereof which are expected to modulate the activity of protein tyrosine kinases and therefore to be useful in the prevention and treatment of protein tyrosine kinase related cellular disorders such as cancer.
3-(Piperazinylbenzylidenyl)-2-indolinone compounds and derivatives as protein tyrosine kinase inhibitors
申请人:SUGEN, Inc.
公开号:US20030069421A1
公开(公告)日:2003-04-10
The present invention relates to novel 3-(piperazinyl-benylidenyl)-2-indolinone compounds and derivatives and physiologically acceptable salts thereof which are expected to modulate the activity of protein tyrosine kinases and therefore to be useful in the prevention and treatment of protein tyrosine kinase related cellular disorders such as cancer.
3-(cycloalkanoheteroarylidenyl)-2- indolinone protein tyrosine kinase
申请人:Sugen, Inc.
公开号:US06051593A1
公开(公告)日:2000-04-18
The present invention relates to novel 3-(cycloalkanoheteroarylidenyl)-2-indolinone compounds and physiologically acceptable salts and prodrugs thereof which are expected to modulate the activity of protein tyrosine kinases and therefore to be useful in the prevention and treatment of protein tyrosine kinase related cellular disorders such as cancer.
3-(cyclohexanoheteroarylidenyl)-2-indolinone protein tyrosine kinase
申请人:Sugen, Inc.
公开号:US06114371A1
公开(公告)日:2000-09-05
The present invention relates to novel 3-(cyclohexano-heteroarylidenyl)-2-indolinone compounds and physiologically acceptable salts and prodrugs thereof which are expected to modulate the activity of protein tyrosine kinases and therefore to be useful in the prevention and treatment of protein tyrosine kinase related cellular disorders such as cancer.