5,6-二氟-1-茚酮

6,7-二氟-2,3-二氢茚-1-酮

[5,6-Difluoro-indan-(1E)-ylidene]-acetyl chloride

[5,6-Difluoro-indan-(1E)-ylidene]-acetic acid

(5,6-Difluoro-1-hydroxy-indan-1-yl)-acetic acid ethyl ester