2,7-di-tert-butyl-4,5-bis(chloromethyl)-9,9-dimethyl-9H-xanthene

4,5-dicyanomethyl-2,7-bis(1,1-dimethylethyl)-9,9-dimethyl-xanthene

2,7-di-tert-butyl-4-chloromethyl-5-ethoxymethyl-9,9-dimethylxanthene

2,7-di-tert-butyl-4-chloromethyl-9,9-dimethyl-5-(methyl 2,3,6-tri-O-benzyl-α-D-glucopyranosid-4-yloxy)methylxanthene

2,7-di-tert-butyl-4-chloromethyl-9,9-dimethyl-5-(methyl 2,3,4-tri-O-benzyl-α-D-glucopyranosid-6-yloxy)methylxanthene