2-甲基-5,6-二氢-4H-吡喃

1,7-二氧螺环-[5,5]十一烷

3-(2-methyl-1H-indol-3-yl)propan-1-ol

1,7-dioxaspiro[5.5]undec-2-ene

1,6-氧杂螺[4.5]癸烷-2-甲醇