4-((S)-1-Hydroxy-ethyl)-5,6,7,8-tetrahydro-quinoline-2-carboxylic acid methyl ester

(R)-2-Amino-3-phenylselanyl-propionic acid allyl ester

(R)-2-tert-Butoxycarbonylamino-3-phenylselanyl-propionic acid allyl ester

(7R,8S)-7-((1S,2S)-1-Allyloxycarbonyl-2-methyl-butylamino)-8-(tert-butyl-dimethyl-silanyloxy)-4-[(S)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-7,8-dihydro-quinoline-2-carboxylic acid 9H-fluoren-9-ylmethyl ester

(R)-2-((S)-2-tert-Butoxycarbonylamino-propionylamino)-3-phenylselanyl-propionic acid allyl ester