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. 2021 Mar 15;26(6):1629. doi: 10.3390/molecules26061629

Figure 2.

Figure 2

(a) Calculated angle-strain in cyclooctyne 1; (b) 3D ball-and-stick molecular model of minimized (R)-1; (c) 3D ball-and-stick molecular model of minimized (R)-15 (hydrogen atoms are omitted for clarity).