Design, synthesis and antifungal activity of a novel water soluble prodrug of antifungal triazole.
Ohwada J, Tsukazaki M, Hayase T, Oikawa N, Isshiki Y, Fukuda H, Mizuguchi E, Sakaitani M, Shiratori Y, Yamazaki T, Ichihara S, Umeda I, Shimma N.
A highly potent water soluble triazole antifungal prodrug, RO0098557 (1), has been identified from its parent, the novel antifungal agent RO0094815 (2). The prodrug includes a triazolium salt linked to an aminocarboxyl moiety, which undergoes enzymatic activation followed by spontaneous chemical degradation to release 2. Prodrug 1 showed high chemical stability and water solubility and exhibited strong antifungal activity against systemic candidiasis and aspergillosis as well as pulmonary aspergillosis in rats.