3,5,5'-trichloro-2,2'-dihydroxy-4,4'-dimethoxy-6,6'-dimethylbenzophenone

3',5,5'-trichloro-4',6-dimethoxy-4,6'-dimethylspiro-2',3(2H)-dione

2,2',4-tribenzyloxy-3,5,5'-trichloro-4'-methoxy-6,6'-dimethylbenzophenone