(2R,3S,4S)-3-acetoxy-N-(benzyloxycarbonyl)-4-hydroxy-2-(4-methoxybenzyl)pyrrolidine

(2R,3S,4S)-3-Acetoxy-1-(tert-butoxycarbonyl)-4-(tert-butyldimethylsilyloxy)-2-(4-methoxybenzyl)pyrrolidine

(4R,5S,6S)-5-(tert-butyldimethylsilyloxy)-4-(4-methoxybenzyl)-2-phenyl-6-vinyl-5,6-dihydro-4H-1,3-oxazine

(4R,5S,6S)-4-(4-methoxybenzyl)-2-phenyl-6-vinyl-5,6-dihydro-4H-1,3-oxazin-5-ol

(4R,5S,6S)-4-(4-methoxybenzyl)-2-phenyl-6-vinyl-5,6-dihydro-4H-1,3-oxazin-5-yl acetate