(tert-butyl-dimethylsilyl) 2-[(tert-butyl-dimethylsilyl)amino]-4-(tert-butyl-dimethylsilyl)oxybutanoate;(tert-butyl-dimethyl-silyl) 2-[(tert-butyl-dimethyl-silyl)amino]-4-(tert-butyl-dimethyl-silyl)oxy-butanoate;2-[(tert-butyl-dimethylsilyl)amino]-4-(tert-butyl-dimethylsilyl)oxybutanoic acid (tert-butyl-dimethylsilyl) ester;2-[(tert-butyl-dimethyl-silyl)amino]-4-(tert-butyl-dimethyl-silyl)oxy-butyric acid (tert-butyl-dimethyl-silyl) ester;D,L-Homoserine, N,O-bis(tert-butyldimethylsilyl)-, tert-butyldimethylsilyl ester
(tert-butyl-dimethylsilyl) 2-[(tert-butyl-dimethylsilyl)amino]-4-(tert-butyl-dimethylsilyl)oxybutanoate