New Gastroprotective Labdeneamides from (4S,9R,10R) Methyl 18-carboxy-labda-8,13(E)-diene-15-oate - Olate, Verónica Rachel; Pertino, Mariano Walter; Theoduloz, Cristina; Yesilada, Erdem; Monsalve, Francisco; González, Paulo; Droguett, Daniel; Richomme, Pascal; Hadi, A. Hamid A.; Schmeda-Hirschmann, Guillermo (Planta Medica, 2012)