2-hydroxy-4-methoxy-6-methyl-isophthalic acid-1-(3-hydroxy-4-methoxycarbonyl-2,5-dimethyl-phenyl ester)-3-methyl ester

2,4-dihydroxy-3,6-dimethylbenzaldehyde

1-乙酰基吡咯烷

methyl 3,5-dioxo-4-methylhexanoate

1,1,4-trimethyl, 4-acetyl-ethylenediamine