4-苄氧基-3-甲氧基苯乙酸

(4-benzyloxy-3-methoxy-phenyl)-pyruvic acid

(4-benzyloxy-5-methoxy-2-nitro-phenyl)-acetic acid

1-allyl-4,5-dimethoxy-2-nitrobenzene

(4-hydroxy-5-methoxy-2-nitro-phenyl)-acetic acid