L-Type calcium channel blockers: from diltiazem to 1,2,4-oxadiazol-5-ones via thiazinooxadiazol-3-one derivatives - Budriesi, R; Cosimelli, B; Ioan, P; Ugenti, M P; Carosati, E; Frosini, M; Fusi, F; Spisani, R; Saponara, S; Cruciani, G; Novellino, E; Spinelli, D; Chiarini, A (J Med Chem, 2009)