3-acetyl-2-but-3-en-2-yl-2-hydroxynaphthalen-1-one

3-acetyl-4-but-3-en-2-yl-2-hydroxy-4H-naphthalen-1-one

[3-acetyl-2-acetyloxy-4-(3-methylbut-2-enyl)naphthalen-1-yl] acetate

(3-acetyl-2-acetyloxynaphthalen-1-yl) acetate