Facile microwave synthesis of a novel phenothiazine derivative and its cytotoxic activity

Abstract

Herein, a facile procedure for microwave synthesis and NMR characterization of phenothiazine derivatives 10-(3-hydroxypropyl)-2-(methylsulphanyl)-10H-phenothiazine (3) (25% yield) and 1-[3-(2-methylsulfanyl-10H-phenothiazine-10-yl)-propyl]pyrimidine-2,4-(1H,3H)-dione (6) (67% yield) is described. After successful microwave synthesis steps, MTT cytotoxicity experiments gave rise to greater anticancer effect of compound 6 in MCF-7 human breast adenocarcinoma cell line (IC50= 1.35 µM) as compared to literature values for tamoxifen (IC50= 8.3 µM) and doxorubicin (IC50= 27 µM).