118803-65-9
(E)-4-(5-fluoro-2-hydroxyphenyl)-4-oxo-2-butenoic acid
→
118803-67-1
(2S)-6-fluoro-3,4-dihydro-4-oxo-N-((S)-1-phenylethyl)-2H-1-benzopyran-2-carboxamide
136087-83-7
(2S,4S)-6-氟-2,3-二氢-2’,5’-二氧螺(4H-1-苯并吡喃-4,4’-咪唑烷)-2-羧酸正丙酯
136087-84-8
(2S,4S)-6-氟-2,3-二氢-2’,5’-二氧螺(4H-1-苯并吡喃-4,4’-咪唑烷)-2-羧酸
118803-69-3
(2S)-6-氟-3,4-二氢-4-氧代-2H-1-苯并吡喃-2-甲酸