( )-Nimocinolide 104494-22-6 24-Norchola-1,14,20(22)-trien-21-oic acid, 7-(acetyloxy)-6,23,23-trihydroxy-4,4,8-trimethyl-3-oxo-, gamma-lactone, (5alpha,6alpha,7alpha,13alpha,17alpha)- Nimocinolide