2-methoxy-6,8a-dimethyl-5,8-dihydro-4aH-naphthalene-1,4-dione

(4aR,8aS)-2-methoxy-7,8a-dimethyl-4a,5,8,8a-tetrahydronaphthalene-1,4-dione

二乙基(2Z)-2-甲基-2-丁烯二酸酯

乙基3-(羟基甲基)-2-甲基-2-环氧乙烷羧酸酯