19-bromo-2,3,4,5-tetrahydro-1,3,3-trimethyl-10-(4-methylphenyl)-15-[4-[2-(trimethylsilyl)ethynyl]phenyl]bilene-a

(4-tert-Butyl-phenyl)-{5-[{5-[(4-tert-butyl-phenyl)-hydroxy-methyl]-1H-pyrrol-2-yl}-(4-trimethylsilanylethynyl-phenyl)-methyl]-1H-pyrrol-2-yl}-methanol