Document Report Card

ID: ALA1134690

Journal: J Med Chem

Title: Preparation and cytotoxicity toward cancer cells of mono(arylimino) derivatives of beta-lapachone.

Authors: Di Chenna PH, Benedetti-Doctorovich V, Baggio RF, Garland MT, Burton G.

Abstract: A regio- and stereospecific synthesis of monoarylimino o-quinones derived from beta-lapachone (1) was achieved by treatment of the quinone with a slight excess of an arylamine in the presence of an excess of triethylamine/titanium tetrachloride 4:1. Imine formation occurred exclusively at position 6, giving the Z diastereomer, as determined by single-crystal X-ray analysis. In vitro tests for cytotoxicity in 55 human cancer cell cultures showed a substantial loss in activity for the p-nitrophenylimine (5), whereas the phenylimine (2), p-methylphenylimine (3), and p-methoxyphenylimine (4) retained (or bettered) most of the cytotoxicity and selectivity of the parent quinone. Preliminary in vivo testing in hollow fiber assays against a standard panel of 12 human tumor cell lines showed that although beta-lapachone failed, compounds 2 and 3 had good scores with net cell kills.

CiteXplore: 11448231

DOI: 10.1021/jm010050u