(2R,2'R,3S,3'S)-(2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12b-acetoxy-12-(benzoyloxy)-11-hydroxy-6-methoxy-4a,8,13,13-tetramethyl-5-oxo-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-1H-7,11-methanocyclodeca[3,4]benzo[1,2-b]oxete-4,9-diyl bis(3-((tert-butoxycarbonyl)amino)-2-hydroxy-3-phenylpropanoate)
