The Serotonin 5-HT4 Receptor. 2. Structure-Activity Studies of the Indole Carbazimidamide Class of Agonists
摘要:
A number of substituted indole carbazimidamides were prepared and evaluated as 5-HT4 receptor agonists by using the isolated field-stimulated guinea pig ileum preparation. Their selectivity for the 5-HT4 receptor was established by examining their affinity for other 5-HT receptors using radioligand-binding techniques. Several selective and highly potent full as well as partial agonists emerged from this study. For example, 1b,d were found to be the most potent, full 5-HT4 receptor agonists described so far (EC(50) = 0.5 and 0.8 nM, respectively), being 6 and 4 times more potent than serotonin itself. On the other hand, 5b and 1h appeared as partial 5-HT4 receptor agonists in the nonstimulated guinea pig ileum preparation with potencies, evaluated against serotonin action, respectively similar (5b, K-i = 12 nM) to and 300-fold higher (1h, K-i = 0.04 nM) than serotonin.
The Serotonin 5-HT4 Receptor. 2. Structure-Activity Studies of the Indole Carbazimidamide Class of Agonists
摘要:
A number of substituted indole carbazimidamides were prepared and evaluated as 5-HT4 receptor agonists by using the isolated field-stimulated guinea pig ileum preparation. Their selectivity for the 5-HT4 receptor was established by examining their affinity for other 5-HT receptors using radioligand-binding techniques. Several selective and highly potent full as well as partial agonists emerged from this study. For example, 1b,d were found to be the most potent, full 5-HT4 receptor agonists described so far (EC(50) = 0.5 and 0.8 nM, respectively), being 6 and 4 times more potent than serotonin itself. On the other hand, 5b and 1h appeared as partial 5-HT4 receptor agonists in the nonstimulated guinea pig ileum preparation with potencies, evaluated against serotonin action, respectively similar (5b, K-i = 12 nM) to and 300-fold higher (1h, K-i = 0.04 nM) than serotonin.
SECO-CYCLOPROPAPYRROLOINDOLE COMPOUNDS, ANTIBODY-DRUG CONJUGATES THEREOF, AND METHODS OF MAKING AND USE
申请人:BRISTOL-MYERS SQUIBB COMPANY
公开号:US20180051031A1
公开(公告)日:2018-02-22
seco-Cyclopropapyrroloindole compounds of formula (I)
where Hal, R
1
, R
2
, and R
3
are as defined in the application, are potent anti-cancer agents that can be used in antibody-drug conjugates.
申请人:GEORG AUGUST UNI GOETTINGEN STIFTUNG OEFFENLICHEN RECHTS
公开号:WO2011051484A1
公开(公告)日:2011-05-05
Die vorliegende Erfindung betrifft neue, als Fluoreszenzfarbstoffe geeignete Verbindungen. Insbesondere betrifft die vorliegende Erfindung eine neue Klasse von mit Chromophoren derivatisierten, pharmakologisch aktiven Verbindungen. In einem weiteren Aspekt richtet sich die vorliegende Erfindung auf Anwendungen der erfindungsgemäßen Verbindungen.
The Serotonin 5-HT4 Receptor. 2. Structure-Activity Studies of the Indole Carbazimidamide Class of Agonists
A number of substituted indole carbazimidamides were prepared and evaluated as 5-HT4 receptor agonists by using the isolated field-stimulated guinea pig ileum preparation. Their selectivity for the 5-HT4 receptor was established by examining their affinity for other 5-HT receptors using radioligand-binding techniques. Several selective and highly potent full as well as partial agonists emerged from this study. For example, 1b,d were found to be the most potent, full 5-HT4 receptor agonists described so far (EC(50) = 0.5 and 0.8 nM, respectively), being 6 and 4 times more potent than serotonin itself. On the other hand, 5b and 1h appeared as partial 5-HT4 receptor agonists in the nonstimulated guinea pig ileum preparation with potencies, evaluated against serotonin action, respectively similar (5b, K-i = 12 nM) to and 300-fold higher (1h, K-i = 0.04 nM) than serotonin.