4-(5-氟-3-羟基苯基)-4-甲氧基-3,4,5,6-四氢-2H-吡喃

3,6-dihydro-2H-pyran-4-yloxy(trimethyl)silane

四氢噻喃-4-醇

5,6-二氢-4-甲氧基-2H-吡喃

4-(Boc-氨基)四氢吡喃-4-羧酸