444891-85-4

8-Oxa-2,5-diaza-9-silaundecanoic acid,9,9,10,10-tetramethyl-4-oxo-3-[2-oxo-2-[(triphenylmethyl)amino]ethyl]-5-[[2-(3,4,5-trimethoxyphenyl)-4-pyridinyl]methyl]-, 9H-fluoren-9-ylmethylester, (3S)-