(2S,4S)-6-Fluoro-2',5'-dioxospiro(3,4-dihydro-2H-1-benzopyran-4,4'-imidazolidine)-2-carboxamide 136087-85-9 Aldos Fidarestat SK 860 SNK 860 Spiro(4H-1-benzopyran-4,4'-imidazolidine)-2-carboxamide, 2,3-dihydro-2',5'-dioxo-6-fluoro-, (2S-cis)- Spiro(4H-1-benzopyran-4,4'-imidazolidine)-2-carboxamide, 6-fluoro-2,3-dihydro-2',5'-dioxo-, (2S-cis)-