4-O-(Tetrahydro-2H-pyran-2-yl)-purpuromycin

4',9',10-Tris-O-acetyl-4-O-(methylsulfonyl)-purpuromycin

2-azido-5,7,8-trimethoxynaphthalene-1,4-dione

5,7,8-trimethoxy-3,4-dihydro-2H-naphthalen-1-one

2-bromo-5,7,8-trimethoxynaphthalen-1-ol