3-(cyclohexen-1-yl)chromen-2-one

(E)-ethyl 2-(6-(2-hydroxybenzylidene)cyclohex-1-en-1-yl)acetate

ethyl 2-(2,3,4,4a-tetrahydro-1H-xanthen-4a-yl)acetate

2-(1-氰基环己烷)丙二酸二乙酯

2-环己基丙二酸二乙酯