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(A) The benzyltriazole appended nucleosides 80, 81. (B) Tube-inversion test depicting gelation: Gelation test for click adduct 80, click adduct 81, and equimolar mixture of 80 and 81. SEM images of (C) compound 80 and (D) compound 81 with the scale bars 20 μm. (Adapted from © 2011 Elsevier Ltd. with permission.[137])
