({3-[1-(4-HYDROXY-2-OXO-2H-CHROMEN-3-YL)-PROPYL]-PHENYLCARBAMOYL}-METHYL)-CARBAMIC ACID TERT-BUTYL ESTER CC[C@@H](c1cccc(c1)NC(=O)CNC(=O)OC(C)(C)C)C2=C(c3ccccc3OC2=O)O U04