Table 1: ¹H (300 MHz) and ¹³C (75.47 MHz) NMR spectral data for 2 in DMSO-d6, including results obtained by homonuclear 2D shift-correlated ¹H COSY and heteronuclear 2D shift-correlated HMQC (¹J_CH)^a.

Chemical shifts (δ, ppm) and coupling constants (J, Hz, in parenthesis)^b.

Position	Hδ	Cδ	Correlation ^1H-^1H	Correlation ^1H-^13C
(NH) 1	6.29 (s)	-	1-H	-
2	-	56.66	-	-
3	3.35, 3.45 (AB (2dd), 10.8; 5.6)	64.85	H^1-3, H^2-3, O-H	H^1-3, H^2-3, C-3
(OH) 4	4.92 (t, 5.6)	-	O-H, H^1-3, H^2-3	-
5	1.18 (s)	20.43	H^1-5, H^2-5, H^3-5	H^1,2,3-5; C-5
6	4.35, 4.51 (AB, 14)	51.74	H^1-6, H^2-6	H^1-6, H^2-6, C-6
9	7.95 (s)	151.61	H^3'triazole -9	H^3'triazole -9, C-9
11	8.23 (s)	145.24	H^5'-triazole -11	H^5'-triazole -11, C-11
12	-	154.97	-	-
14	-	78.43	-	-
15; 17; 18	1.39 (s)	28.68	H^1,2,3-15 H^1,2,3-17 H^1,2,3-18	H^1,2,3-15; C-15 H^1,2,3-17; C-17 H^1,2,3-18; C-18

^aCorrelation from C to the indicated hydrogens.

^bChemical shifts and coupling constants (J) obtained of 1D ¹H-NMR spectrum.