(3aS,6R,6aR)-4-Benzyl-6-benzyloxy-hexahydro-furo[3,2-b]pyrrol-2-one

(2S,3R,4R)-1-benzyl-4-benzyloxy-2-(2-hydroxyethyl)pyrrolidin-3-ol

(2S,3R,4R)-3,4-bis(benzyloxy)-2-vinylpyrrolidine