(4S,5R)-4,5-Bis-benzyloxy-5-(S)-oxiranyl-pent-2-ynoic acid methyl ester

(S)-2-((1R,2S)-1,2-Bis-benzyloxy-but-3-ynyl)-oxirane

((3R,4S)-4-Acetoxy-3-benzyloxy-cyclopent-1-enyl)-acetic acid methyl ester

(4S,5S,6R)-4,5-Bis-benzyloxy-7-bromo-6-hydroxy-hept-2-ynoic acid methyl ester