None: Isopropyl 3-(hydroxymethyl)pyridine-2-carboxylate , ( 200 g , 1.02 mol ; prepared as in -P . Ornstein et. al. J . Med . Chem . 1989 , 32 , 827 ) , 
None: methyl N-[(4-methylphenyl)sulfonyl]glycinate ( 249 g , 1.02 mol ) 
None: triphenylphosphine ( 403 g , 1.5 mol ) 
None: dry THF ( 3000 mls ) 
None: N2 
None: diethylazodicarboxylate ( DEAD ) ( 267.6 g , 1.5 mol ) 
None: dry THF ( 250 mls ) 
None: DEAD 
None: glycinate 
None: glycinate remaining 
None: 10 mL methanol 
