2-Aryl-4,5,6,7-tetrahydro-1,3-benzothiazol-7-ols as a class of antitumor agents selectively active in securin−/− cells
2010
Abstract A series of 2-(4-aminophenyl)-4,5,6,7-tetrahydro-1,3-benzothiazol-7-ols have been developed as antitumor agents that showed high selectivity against aneuploid cell lines (vs diploid cell lines). Structure–activity relationship studies showed that a hydroxymethyl group at the 2-position of the phenyl ring increased potency and selectivity. A pyrrolidinyl group at the 4-position of the phenyl ring was comparable to a dimethylamino group. The corresponding 5-aza analogs, 2-(4-aminophenyl)-4,5,6,7-tetrahydro[1,3]thiazolo[4,5- c ]pyridin-7-ols, retained potency and high level of selectivity against aneuploid cell growth (vs diploid cells). These 5-aza compounds exhibited higher water solubility and higher metabolic stability than the corresponding carba analogs. Compound 19 showed the highest potency against MCF-7 and MDA-MB-361 lines and was selected for further evaluation.
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