(1'R,2R)-2-[(1',2'-O-Isopropylidene)dihydroxyethyl]-6-fluorochroman-4-one
(1'R,2S)-2-[(1',2'-O-Isopropylidene)dihydroxyethyl]-6-fluorochroman-4-one
(1'S,2R)-2-[(1',2'-O-Isopropylidene)dihydroxyethyl]-6-fluorochroman-4-one
(1'S,2S)-2-[(1',2'-O-Isopropylidene)dihydroxyethyl]-6-fluorochroman-4-one
(E)-(4R)-4,5-Isopropylidene-dioxy-1-(2-hydroxy-5-fluorophenyl)propenone