5',6'-dimethyl-4'H-spiro[adamantane-2,2'-[1,3]oxathiine]

13,1'4,24,33,53,6'4,73-spiro[adamantaoxidane-2,3'-hexaoxine]-1',6'-diol

adamantanethione S-oxide

1-phenyl-1H-1,2,3-triazole-4-carbonitrile