(2S,3S)-2-{[(benzyloxy)carbonyl]amino}-5-hydroxy-3-methylpentanoic acid methyl ester

(2S,3S)-2-[N-(tert-butoxycarbonyl)-N-methylamino]-3-methyl-5-[(triisopropylsilanyl)oxy]pentanoic acid methyl ester

(2S,3S)-2-[N-(tert-butoxycarbonyl)-N-methylamino]-3-methyl-5-[(triisopropylsilanyl)oxy]pentanoic acid allyl ester

(2S,3S)-2-({(R)-2-[1-(9H-Fluoren-9-ylmethoxycarbonylamino)-ethyl]-4-methyl-4,5-dihydro-thiazole-4-carbonyl}-methyl-amino)-3-methyl-5-triisopropylsilanyloxy-pentanoic acid allyl ester

(1R,4S,7S,10S)-10-((1R,4S)-4-Methoxy-1-methyl-heptyl)-1,3,7,11,11,14-hexamethyl-4-((S)-1-methyl-3-triisopropylsilanyloxy-propyl)-9-oxa-16-thia-3,6,13,18-tetraaza-bicyclo[13.2.1]octadec-15(18)-ene-2,5,8,12-tetraone