(4S,4'S)-1,1'-Bis(3,5-di-tert-butylphenyl)-4,4'-diisobutyl-4,4',5,5'-tetrahydro-1H,1'H-2,2'-biimidazole

(4S,4'S)-1,1'-Bis(3,5-di-tert-butylphenyl)-4,4'-diisobutyl-4,4',5,5'-tetrahydro-1H,1'H-2,2'-biimidazole