3,4-dihydroxy-2-pentanoylnaphthalene-1-carbonitrile

1-(7-bromo-3,4-dihydroxynaphthalen-2-yl)pentan-1-one

1-(3,4-dihydroxy-7-methylnaphthalen-2-yl)pentan-1-one

5-氧代癸酸

undec-6-enoic acid