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. 2006 Dec 14;35(1):307–316. doi: 10.1093/nar/gkl1025

Figure 1.

Figure 1

Polyamide structures and syntheses. (A) Chemical and ball-and-stick structures for polyamides 1R, 1S, 2R, 2S and their Chl conjugates. (B) Chemical structures of the four turn units used in the syntheses of the parent polyamides and polyamide-chlorambucil conjugates: Boc-D-Dab(Fmoc)-OH (upper left, used in the syntheses of 1R and 1R-Chl); Boc-Dab(Fmoc)-OH (top right, used in the syntheses of 1S and 1S-Chl); Fmoc-D-Dab(Boc)-OH (lower left, used in the syntheses of 2R and 2R-Chl); Fmoc-Dab(Boc)-OH (lower right, used in the syntheses of 2S and 2S-Chl).