(3S,5S,6R)-3-[3-(tert-Butyl-dimethyl-silanyloxy)-4-methoxy-5-methyl-benzyl]-4-methyl-5,6-diphenyl-morpholin-2-one

(3S,5S,6R)-3-(3-Hydroxy-4-methoxy-5-methyl-benzyl)-2-oxo-5,6-diphenyl-morpholine-4-carboxylic acid tert-butyl ester

(3S,5S,6R)-3-(3-Benzyloxy-4-methoxy-5-methyl-benzyl)-2-oxo-5,6-diphenyl-morpholine-4-carboxylic acid tert-butyl ester

(3S,5S,6R)-3-[3-(tert-Butyl-dimethyl-silanyloxy)-4-methoxy-5-methyl-benzyl]-2-oxo-5,6-diphenyl-morpholine-4-carboxylic acid tert-butyl ester