3-氯-4-(氯甲基)-5-羟基-5H-呋喃-2-酮

3-(phenylmethoxymethyl)furan

3-[[tert-butyl(dimethyl)silyl]oxymethyl]-2H-furan-5-one

(S)-4-(氟甲基)-二氢呋喃-2(3h)-酮

2,7-dioxaspiro[4.4]nonane-3,8-dione