4-(5-tert-butyl-3-formyl-2-hydroxy-benzyl)-piperazine-1-carboxylic acid tert-butyl ester

5-tert-butyl-2-hydroxy-3-(N'-acylpiperazinomethyl)benzaldehyde

5-叔丁基-2-羟基苯甲醛

邻叔丁基苯酚

3-(bromomethyl)-2-hydroxy-5-tert-butylbenzaldehyde