Celapanine

2-Pyridinecarboxylic acid 4,6-diacetoxy-10-[(3-furylcarbonyl)oxy]3,4,5,5a,6,7,8,9-octahydro-2,2,5a,9-tetramethyl-2H-3,9a-methano-1-benzoxepin-5-yl ester