2,5-Dimethoxy-3-benzolsulfonyloxy-phenol

1,2,5-Trimethoxy-3-benzolsulfonyloxy-benzol

1,2,5-Trimethoxy-3-p-tosyloxy-benzol

2,6-Bis-benzolsulfonyloxy-benzochinon-(1,4)

4-Amino-3,5-bis-benzolsulfonyloxy-phenol