methyl (6R,8S,11R,14S)-8-((tert-butoxycarbonyl)(methyl)amino)-14-((R)-methoxy(phenyl)methyl)-2,2,6,11-tetramethyl-9,12-dioxo-3,3-diphenyl-4-oxa-10,13-diaza-3-silapentadecan-15-oate

tert-butyl [(1S,3R)-4-hydroxy-1-(hydroxymethyl)-3-methylbutyl]carbamate

tert-butyl (S)-4-((R)-3-((tert-butyldiphenylsilyl)oxy)-2-methylpropyl)-2,2-dimethyloxazolidine-3-carboxylate