1,1,3,4-四甲基-2-茚酮

(1,1,3,3-tetramethylinden-2-ylidene)hydrazine

1,1,3,3-tetramethyl-2-indanone triphenyl-phosphoranylidenehydrazone

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

trans-2,3-dihydro-1,1,3,3-tetramethyl-3',4'-bis(trifluoromethyl)-spiro[1H-indene-2,2'-thiolane]-3',4'-dicarbonitrile