(2S,3R)-3-(tert-butyldimethylsilanyloxy)-5-(4-methoxybenzyloxy)-2-methylpentanal

(3S,4R)-4-[2-(4-methoxybenzyloxy)ethyl]-3-methyloxetan-2-one

(3R,4S)-4-[(2S,3R)-2-(tert-butyldimethylsilanyloxy)-4-(4-methoxybenzyloxy)-1-methylbutyl]-3-methyloxetan-2-one

(2S,3R)-N-methoxy-N-methyl-3-hydroxy-5-(4-methoxybenzyloxy)-2-methylpentamide

(2S,3R)-N-methoxy-N-methyl-3-(tert-butyldimethylsilanyloxy)-5-(4-methoxybenzyloxy)-2-methylpentamide