(3S,4R)-3-((S)-sec-butyl)-4-((R)-2,2-dimethyl-1,3-dioxolan-4-yl)oxetan-2-one

(R)-((4S,5S)-5-((R)-methoxy(phenyl)methyl)-2,2-dimethyl-1,3-dioxolan-4-yl)(phenyl)methyl (2R,3S)-3-((S)-sec-butyl)-4-oxooxetane-2-carboxylate

(3R,2R)-4-benzyloxy-2-((S)-sec-butyl)butane-1,3-diol

(2S,3S)-2-((R)-2-Benzyloxy-1-hydroxy-ethyl)-3-methyl-pentanal

(3S,4R)-4-benzyloxymethyl-3-((S)-sec-butyl)oxetan-2-one