Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Benzyloxyamine reacted with BOC-glutamic-α-phenyl ester in the presence of carbodiimide to give BOC-amino-N-benzyloxypiperidinedione. Deprotection of the amino group followed by phthaloylation led to N-benzyloxythalidomide which was then converted into thalidomide.