cbz-glu-obzlcbz-l-glutamic acid a-benzyl estern-alpha-benzyloxycarbonyl-l-glutamic-acid-alpha-benzyl estern-alpha-carbobenzoxy-l-glutamic acid alpha-benzyl estern-alpha-cbz-l-glutamic acid alpha-benzyl estern-benzyloxycarbonyl-l-glutamic acid alpha-benzyl esterz-glu-obzlz-glutamic acid-obzlz-l-glu-obzlz-l-glutamic acid alpha-benzyl esterz-l-glutamic acid α-benzyl estercbz-l-glutamic acid α benzyl estercbz-l-glutamic acid alpha-benzyl estercbz-glu-obcbzlcbz-l-glutamic acid 2-benzyl estercbz-l-glu-obzlcbz-l | 
