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. Author manuscript; available in PMC: 2013 Oct 1.
Published in final edited form as: Chemistry. 2012 Aug 31;18(40):12609–12613. doi: 10.1002/chem.201201960

Figure 2.

Figure 2

Figure 2

Cross-linking efficiency of compounds 1a and 1b under aerobic and anaerobic conditions: (A) Duplexes containing 1a (6–9) were irradiated by UV for 2 h; (B) Duplexes containing 1b (10–13) were UV-irradiated for 2 h [black bar -aerobic conditions (air); grey bar - anaerobic conditions (Ar2)].