1 Supporting information Cerium(IV) ammonium nitrate is an excellent, general catalyst for the Friedländer and Friedländer-Borsche quinoline syntheses: Very efficient access to the antitumor alkaloid luotonin A Vellaisamy Sridharan, Pascual Ribelles, Mª Teresa Ramos and J. Carlos Menéndez * Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain. Table of contents Experimental section 2 Spectra of compounds 6 12 Spectra of compounds 7-10 50 Spectra of luotonin A and its precursor 72 * Corresponding author. Tel.: 34-91-3941840; fax: 34-91-3941822; e-mail: josecm@farm.ucm.es.