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. 2018 Summer;17(3):917–926.

Figure 8.

Figure 8

IR spectra of a) Deprotected glutamate bound to wang resin b) The corresponding isocyanate intermediate on wang resin. X-N=C=O stretch is seen in the 2270 cm–1 region of the IR (b) while it is absent in IR spectrum of resin-Glu-NH2 (a).