24,25,26,27-tetranorapotirucalla-(apoeupha)-1alpha-tigloyloxy-3alpha, 7alpha-dihydroxyl-12alpha-acetoxyl-14,20,22-trien-21,23-epoxy-6,28-epoxy
24,25,26,27-tetranorapotirucalla-(apoeupha)-1alpha-tigloyloxy-3alpha, 7alpha-dihydroxyl-12alpha-acetoxyl-14,20,22-trien-21,23-epoxy-6,28-epoxy