Antitumor agents 201. Cytotoxicity of harmine and β-carboline analogs

Article abstract of DOI:10.1016/S0960-894X(99)00598-3

Twenty-six β-carbolines were evaluated for in vitro cytotoxicity in a human tumor cell line panel. Harmine (3) showed significant activity against several cell lines including three drug-resistant KB sublines with various resistance mechanisms. α-(4-Nitrobenzylidine) harmine (16) had a broad cytotoxicity spectrum (ED₅₀ values from 0.3-1.2 μg/mL against 1A9, KB, SaOS-2, A549, SK-MEL-2, U-87-MG, and MCF-7 cells).