6-Chloro-3-alkylamino-4H-thieno[3,2-e]-1,2,4-thiadiazine 1,1-Dioxide Derivatives Potently and Selectively Activate ATP Sensitive Potassium Channels of Pancreatic β-Cells
摘要:
6-Chloro-3-alkylamino-4H-thieno[3,2-e]-1,2,4-thiadiazine 1,1-dioxide derivatives were synthesized and characterized as activators of adenosine 5'-triphosphate (ATP) sensitive potassium (K-ATP) channels in the beta-cells by measuring effects on membrane potential and insulin release in vitro. The effects on vascular tissue in vitro were measured on rat aorta and small mesenteric vessels. Selected compounds were characterized as competitive inhibitors of [H-3]glibenclamide binding to membranes of HEK293 cells expressing human SUR1/Kir6.2 and as potent inhibitors of insulin release in isolated rat islets. 6-Chloro-3-(1-methylcyclobutyl)amino-4H-thieno[3,2-e]-1,2,4-thiadiazine 1,1-dioxide (54) was found to bind and activate the SUR1/Kir6.2 KATP channels in the low nanomolar range and to be at least 1000 times more potent than the reference compound diazoxide with respect to inhibition of insulin release from rat islets. Several compounds, e.g., 3-propylamino- (30), 3-isopropylamino- (34), 3-(S)-sec-butylamino- (37), and 3-(1-methylcyclopropyl)amino-4H-thieno[3,2-e]-1,2,4-thiadiazine 1,1-dioxide (53), which were found to be potent and beta-cell selective activators of K-ATP channels in vitro, were found to inhibit insulin secretion in rats with minimal effects on blood pressure and to exhibit good oral pharmacokinetic properties.
Use of potassium channel agonists for the treatment of cancer
申请人:——
公开号:US20020028808A1
公开(公告)日:2002-03-07
The present invention relates to the use of potassium channel agonists for treating cancer, more particular the treatment and/or prevention of breast cancer and endometrial cancer. The present invention also embraces the use of the compounds of general formulas (I) and (Ia) in treating cancer and methods of using the compounds and their pharmaceutical compositions.
Use of potassium channel agonists for reducing fat food consumption
申请人:——
公开号:US20020035106A1
公开(公告)日:2002-03-21
The present invention relates to the use of potassium channel agonists for reducing or lowering the consumption of fat food. The present invention also embraces the use of the compounds of general formulas (I) and (Ia) in reducing or lowering the intake of fat food and methods of using the compounds and their pharmaceutical compositions.
The present invention relates to a use of SUR1/Kir6.2 selective potassium channel openers for the preparation of a pharmaceutical composition for the prevention or the treatment of diabetes, and for the treatment of hyperinsulinaemia and hyperandrogenism in women with Polycystic Ovary Syndrome (PCOS) as well as a pharmaceutical composition for use in the prevention or the treatment of diabetes, and in the treatment of hyperinsulinaemia and hyperandrogenism in women with Polycystic Ovary Syndrome.
Combined use of a modulator of CD3 and a beta cell resting compound
申请人:——
公开号:US20030235583A1
公开(公告)日:2003-12-25
Methods and uses for the prevention and intervention of Type 1 diabetes and LADA comprising administration of a modulator of CD3 and a beta cell resting compound.