title: Non-ATP competitive glycogen synthase kinase 3beta (GSK-3beta) inhibitors: study of structural requirements for thiadiazolidinone derivatives.
abstract: The 2,4-disubstituted thiadiazolidinones (TDZD) were described as the first non-ATP competitive GSK-3beta inhibitors. New modifications in this heterocyclic ring are here reported to study the influence on the biological activity. The basic skeleton of 1,2,4-thiadiazole and also one of the carbonyl groups are kept, while different modifications are introduced in positions 3 and 5, respectively. The GSK-3beta activity of the new thiadiazole derivatives here synthesized showed IC(50) values for some of the compounds in the micromolar range. Additionally, ATP competition studies have been carried out, showing that as well as the first generation of TDZD, these new compounds act in a non-competitive manner. With this study, additional requirements for the biological activity of the TDZD family have been delineated.
authors.affiliation: Instituto de Química Médica (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain. acastro@neuropharma.es
authors.forename: Ana
authors.initials: A
authors.lastname: Castro
authors.forename: Arantxa
authors.initials: A
authors.lastname: Encinas
authors.forename: Carmen
authors.initials: C
authors.lastname: Gil
authors.forename: Stefan
authors.initials: S
authors.lastname: Bräse
authors.forename: Williams
authors.initials: W
authors.lastname: Porcal
authors.forename: Concepción
authors.initials: C
authors.lastname: Pérez
authors.forename: Francisco J
authors.initials: FJ
authors.lastname: Moreno
authors.forename: Ana
authors.initials: A
authors.lastname: Martínez
mesh_terms: D000255:Adenosine Triphosphate; D000818:Animals; D038362:Glycogen Synthase Kinase 3 / Q000037:antagonists & inhibitors*; D000071679:Glycogen Synthase Kinase 3 beta; D006801:Humans; D020128:Inhibitory Concentration 50; D047428:Protein Kinase Inhibitors / Q000138:chemical synthesis* / Q000494:pharmacology; D013329:Structure-Activity Relationship; D013830:Thiadiazoles / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D047428:Protein Kinase Inhibitors; D013830:Thiadiazoles; D000255:Adenosine Triphosphate; C000605506:GSK3B protein, human; D000071679:Glycogen Synthase Kinase 3 beta; D038362:Glycogen Synthase Kinase 3