thiobenzophenone S-methylide

adamantane-2-thione

1,1,3,3-tetramethyl-5-thia-7,8-diazaspiro[3.4]oct-7-en-2-one

2,2',3,5'-tetrahydro-1,1,3,3-tetramethylspiro[1H-indene-2,2'-[1,3,4]thiadiazole]

6,6,9,9-tetramethyl-4-thia-1,2-diazaspiro[4,4]non-1-ene