(Z)-7-ethylidene-2-((Z)-5-ethylidene-4-hydroxy-2-oxo-2,5-dihydrofuran-3-yl)-2,4,4-trimethyl-3,4-dihydro-2H-furo[3,4-b]pyran-5(7H)-one

3,6,6-Trimethyl-1,2,3,4,4a,6,7,11c-octahydropyrido<3,4-b>pyrano<3,4-b>indole

1-(异苯并二氢吡喃-1-基)-2-丙酮

4,6-二甲基喹啉

5-苯基-3H-1,2-二硫醇-3-酮