6533b871fe1ef96bd12d0fa7

RESEARCH PRODUCT

Synthesis and Biological Properties of Benzothiazole, Benzoxazole, and Chromen-4-one Analogues of the Potent Antitumor Agent 2-(3,4-Dimethoxyphenyl)-5-fluorobenzothiazole (PMX 610, NSC 721648)

Rana BazziStefania AielloMalcolm F. G. StevensAndrew D. WestwellDavid R BellCharles S. MatthewsErica L. StoneTracey D. BradshawGeoffrey WellsHachemi Kadri

subject

BenzoxazolesBicyclic moleculebiologyStereochemistryCell CycleAntineoplastic AgentsBreast NeoplasmsBenzoxazoleAryl hydrocarbon receptorChemical synthesisIn vitroStructure-Activity Relationshipchemistry.chemical_compoundReceptors Aryl HydrocarbonchemistryBenzothiazoleCell Line TumorDrug Discoverybiology.proteinHumansMolecular MedicineStructure–activity relationshipBenzopyransBenzothiazolesGrowth inhibition

description

New fluorinated 2-aryl-benzothiazoles, -benzoxazoles, and -chromen-4-ones have been synthesized and their activity against MCF-7 and MDA 468 breast cancer cell lines compared with the potent antitumor benzothiazole 5. Analogues such as 9a, b and 12a, d yielded submicromolar GI50 values in both cell lines; however, none of the new compounds approached 5 in terms of antitumor potency. For 5, binding to the aryl hydrocarbon receptor appeared to be necessary but not sufficient for growth inhibition.

https://doi.org/10.1021/jm800418z