Table 4.

¹H and ¹⁵N Chemical Shifts and Assignments for [¹⁵N₅,¹³C₁₀]-FAPy in 90% D₂O/10% H₂O

	1H chemical shift (ppm)a		15N chemical shift (ppm)b
position	α	β	α	β
2-NH2, cis	6.373 d (91)	6.346 d (91)	75.60	75.40
2-NH2, trans	6.376b	6.347b	75.02	74.83
7, cis	8.687 br d (96)	8.658 br d (95)	114.66	114.70
7, trans	8.111b	8.195b	113.75	113.10
9, cis	6.493 d (91)	6.878 d (92)	95.03	98.33
9, trans	6.591 d (91)	7.128 d (93)	95.96	98.89

^aThe numbers in parentheses are the ¹⁵N coupling constants (in Hz).

^bChemical shift from the ¹⁵N-decoupled HSQC spectrum.