tert-butyl 5-((4-methoxybenzyl)oxy)-2-oxopentanoate

tert-butyl 3-((2S,3S)-5-(tert-butoxy)-3-(2-((4-methoxybenzyl)oxy)ethyl)-1-nitro-4,5-dioxopentan-2-yl)-6-methoxypicolinate

2,2-Dimethyl-propionic acid (2R,3S)-4-{(R)-6-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-6-hydroxymethyl-2-[3-(4-methoxy-benzyloxy)-propyl]-5,6-dihydro-4H-pyran-3-yl}-2,3-dimethyl-butyl ester

(S)-2-tert-Butoxycarbonylamino-3-{(2R,3S)-3-hydroxymethyl-2-[3-(4-methoxy-benzyloxy)-propyl]-oxiranyl}-propionic acid methyl ester

(S)-2-tert-Butoxycarbonylamino-4-[2-(tert-butyl-dimethyl-silanyloxy)-eth-(Z)-ylidene]-7-(4-methoxy-benzyloxy)-heptanoic acid methyl ester