7-[(pivalyloxymethyl)oxy]-2H-benzopyran-2-one

2-(1,1-dimethylallyl)-2,3-dihydro-O-benzyl-p-benzyloxycoumaric acid

methyl 2-(2,4-bis(benzyloxy)benzyl)-3,3-dimethylpent-4-enoate

3-氧代丙酸乙酯

cis-3-氯丙烯酸