. Author manuscript; available in PMC: 2020 Jan 4.

Published in final edited form as: J Am Chem Soc. 2019 Oct 29;141(44):17601–17609. doi: 10.1021/jacs.9b06694

Table 2.

Effect of Protonation on red-HyP Analogues as a Proxy for HyP N-Oxides^a

compd	λ_abs (nm)	λ_abs (1% TFA) (nm)	Δλ (nm)
red-HyP-1	760	669	91
1	796	719	77
2	759	699	60
3	789	686	103
4	757	675	88
5	759	697	62
6	782	690	88

Characterized in CHCl₃.