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

2-acetyl-3,5,6-trimethylpyrazine

1-(5-acetyl-3,6-dimethylpyrazin-2-yl)ethanone

3-(triethoxymethyl)but-3-en-2-ol

2-[1-(4-hydroxyphenyl)ethyl]phenol