(9H-fluoren-9-yl)methyl ((3R,4R)-4-((1S,2S)-2-((tert-butoxycarbonyl)amino)cyclopropyl)-1-phenylpentan-3-yl)carbamate

(R)-2-((1R,2S)-2-(((tert-butyldiphenylsilyl)oxy)methyl)cyclopropyl)propanal

(9H-fluoren-9-yl)methyl ((3R,4R)-4-((1S,2S)-2-(hydroxymethyl)cyclopropyl)-1-phenylpentan-3-yl)carbamate

tert-butyl ((1S,2S)-2-((2R,3R)-3-((S)-2-(((benzyloxy)carbonyl)amino)propanamido)-5-phenylpentan-2-yl)cyclopropyl)carbamate

(3S,4R)-3-((S)-sec-butyl)-4-oxooxetane-2-carboxylic acid