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. 2019 Apr 23;10:1918. doi: 10.1038/s41467-019-09957-6

Fig. 2.

Fig. 2

Synthesis of binary-coded digital dendrimers. a Synthesis of the monomers from the binary sub-monomer units (0- and 1-bit) based on orthogonal deprotections of thiol and maleimide (i and ii), thiol-maleimide Michael addition (iii) and maleimide ring regeneration maleimide ring (iv). b Construction of binary-coded dendrimers from monomers via divergent growth strategy (i, ii, and iii). Experimental conditions: (i) con. HCl, MeOH, 70 °C or acetyl chloride, MeOH/CH2Cl2 = 1:5, −78 to 25 °C, inert atmosphere, (ii) Toluene, 110 °C, (iii) Et3N, CHCl3, 25 °C, (iv) N-chlorosuccinimide, CCl4, 76 °C. c The molecular structure detail of the digital dendrimer (DN-011-G1) containing the certain binary information