Showing structure for n-[(2s)-1-[(11r,12s,13r)-2-methoxy-11-(methoxycarbonyl)-11-(4-methoxyphenyl)-14-oxo-12-phenyl-4,6,10-trioxatricyclo[7.5.0.0³,⁷]tetradeca-1(9),2,7-triene-13-carbonyl]pyrrolidin-2-yl]-2-methylbutanimidic acid