title: A concise entry into nonsymmetrical alkyl polyamines.
abstract: The synthesis of nonsymmetrical polyamines (PAs) has, up to now, been problematic due to lengthy synthetic procedures, lack of regioselectivity, and very poor atom economy. An innovative synthetic protocol for nonsymmetrical PAs using a modified Ugi reaction ( N-split Ugi) which simplifies the synthesis of these tricky compounds is described. We believe that this new synthesis may open the door for the generation of new and pharmacologically active PAs.
authors.affiliation: Dipartimento di Scienze Chimiche, Alimentari, Farmaceutiche e Farmacologiche and Drug and Food Biotechnology Center, Università degli Studi del Piemonte Orientale "A. Avogadro", Via Bovio 6, 28100 Novara, Italy.
authors.forename: Tracey
authors.initials: T
authors.lastname: Pirali
authors.forename: Grazia
authors.initials: G
authors.lastname: Callipari
authors.forename: Emanuela
authors.initials: E
authors.lastname: Ercolano
authors.forename: Armando A
authors.initials: AA
authors.lastname: Genazzani
authors.forename: Giovanni Battista
authors.initials: GB
authors.lastname: Giovenzana
authors.forename: Gian Cesare
authors.initials: GC
authors.lastname: Tron