1,3-diethyl-7-methyl-8-[(E)-2-(3,4,5-trimethoxyphenyl)ethenyl]purine-2,6-dione

3-羟基-4-甲氧基苯甲酸乙酯

methyl 2,4,6-trinitrobenzoate

1-Boc-3-甲氧基吡咯烷

4-tert-butyl-2-methoxy-1-nitrobenzene