Cl.C(OC(=O)CNCC1C=CC=CC=1)C.C([O:18][C:19](=[O:36])[CH2:20][N:21]([CH2:29][C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1)[C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])C.C(OC(OC(C)(C)C)=O)(OC(C)(C)C)=O.[OH-].[Na+]>CO>[CH2:29]([N:21]([C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[CH2:20][C:19]([OH:36])=[O:18])[C:30]1[CH:31]=[CH:32][CH:33]=[CH:34][CH:35]=1N-Benzylglycine ethyl ester hydrochloride was converted to N-benzyl-N-t-butoxycarbonylglycine ethyl ester using di-t-butyl dicarbonate under standard conditions. The ethyl ester was saponified using sodium hydroxide in methanol to give the title compound.
Loading…