2-methyl-1-propan-2-yloxy-5,8-dioxaspiro[3.4]oct-1-en-3-one

1,4-二氧杂螺[4.5]癸-6-烯

(2-甲基-1,3-二氧杂烷-2-基)甲醇

6-溴硫代苯并二氢吡喃-4-酮

1,2-癸二醇