beta-紫红霉酮

(8S)-8beta-乙基-7,8,9,10-四氢-6,8alpha,10alpha,11-四羟基-1-甲氧基-5,12-并四苯醌

2-(4-bromo-6-ethyl-1-hydroxy-2-naphthoyl)-3-methoxybenzoic acid

3-(4-bromo-7-ethyl-1-methoxynaphthalen-2-yl)-3-hydroxy-7-methoxyisobenzofuran-1(3H)-one