L-(-)-N-(tert-butyloxycarbonyl)-2,2-dimethylthiazolidinecarboxylic acid pentafluorophenyl ester
(4R)-5t-(N,N'-bis-methoxycarbonyl-hydrazino)-2,2-dimethyl-thiazolidine-3,4r-dicarboxylic acid 3-tert-butyl ester 4-methyl ester
tert-butyl (R)-4-[(S)-2-(azido-2-methoxycarbonylethyl)(tolyl-4'-sulfonyl)aminocarbonyl]-2,2-dimethylthiazolidine-3-carboxylate
C18H27BN2O5S
(1R,5R)-tert-butyl 6-(2-(benzyloxy)-2-oxoethoxy)-3,3-dimethyl-7-oxo-4-thia-2,6-diazabicyclo[3.2.0]heptane-2-carboxylate