Design, Synthesis and Anticancer Activity of Novel 2,3- and 2,4-Disubstituted Quinazoline and Quinazolinone Derivatives

An acetylhydrazide derivative containing a quinazoline nucleus has been utilized to design and synthesize a series of 2,4-disubstituted quinazolines via reaction with several carbon electrophiles including 4-methoxybenzaldehyde and carbon disulfide as well as acetyl and benzoyl chloride.Another series of 2,3-disubstituted-4(3H)-quinazolinones has been also obtained from reactions of a 3-aminoquinazolin-4(3H)-one derivative with other carbon electrophiles, such as chloroacetamide, acetic anhydride, phenyl isocyanate, and ethyl chloroacetate.The structures of the new compounds have been assigned from their spectral data (IR, 1 H NMR, 13 C NMR and MS) and elemental analyses.The newly synthesized compounds were evaluated for their in vitro cytotoxic activity against breast cancer, hepatocellular carcinoma, cervical cancer, and human promyelocytic leukemia cell lines.All the tested compounds showed anticancer activity.