6'-methylspiro<1,3-dioxolan-2,3'<7>oxabicyclo<4,1,0>heptane>

8-甲基-1,4-二氧杂螺[4.5]癸-7-烯

2,5-dihydro-4-methylanisole

5,5-ethylenedioxy-7a-methyl-4,5,6,7-tetrahydro-2H-inden-1(7aH)-one

2-ethenyl-4,4-ethylenedioxy-1-methylcyclohex-1-ene