Dimethyl 5,5-dimethyl-5,6,7,8-tetrahydro-1,2-naphthalenedicarboxylate

dimethyl 5,5-dimethylhex-2-ynedioate

Dimethyl 8,8-dimethyl-2,5,5-triphenyl-5,8-dihydro-2H,3H-8lambda(5)-(1,2)azaphospholo(2,1-b)(1,3,2)oxazaphosphole-6,7-dicarboxylate

dimethyl 5,5-dimethylpyrazole-3,4-dicarboxylate

5H-[1,2]Azaphospholo[2,1-b][1,3,5,2]oxadiazaphosphole-6,7-dicarboxylicacid, 8,8-dihydro-8,8-dimethyl-5,5-diphenyl-3-(2,4,6-trimethylphenyl)-, dimethyl ester (9CI)