(2E,3E,5E,7E,9E)-2-ethylidene-4,10-dimethyl-11-oxo-11-{(3aS,6S,6aR)-5-oxo-3a-[2-(phenylselanyl)ethoxy]hexahydro-2H-furo[3,2-b]pyrrol-6-yl}undeca-3,5,7,9-tetraenoic acid methyl ester