Synthesis of Novel Thymine-β-lactam Hybrids and Evaluation of Their Antitumor Activity

Abstract

Trimethylene-tethered thymine-β-lactam and thymine-bis-β-lactam chimeras were prepared as novel classes of hybrid systems through selective mono- or bis-N-alkylation of thymine with cis-1-(3-bromopropyl)-β-lactams. In addition, acidic methanolysis of the β-lactam nucleus in these systems provided an entry into the class of thymine-β-amino ester hybrids. A selection of the newly synthesized hybrid compounds was assessed for their antiviral activity, cytotoxicity, and cytostatic activity, revealing a significant cytostatic effect of one of the derivatives against murine leukemia and human T-lymphocyte tumor cells.

Key words

molecular hybridization - β-lactams - thymine - acidic methanolysis - antitumor agents

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