N-{3-[(2-Hydroxyethyl)amino]-3-oxopropyl}-9'-oxo-11'-{4-[(4,12,12-trimethyl-5-oxatricyclo[8.2.0.04,6]dodec-9-ylidene)methyl]benzyl}-1,3-dihydro-13'H-spiro[indene-2,4'-[3,5,8,12]tetraoxa[11]azatetrac
yclo[5.5.2.02,6.010,13]tetradecane]-13'-carboxamide