TABLE 2

¹H NMR data for the TFA salts of metabolites MII-1-5, -11, and -13

Position	MII-1^{^a}	MII-2^{^a}	MII-3^{^b}	MII-4^{^b}	MII-5^{^a}	MII-11^{^a}	MII-13^{^a}
Position	δ_H^{^a} (J in Hz)		δ_H^{^b} (J in Hz)		δ_H^{^a} (J in Hz)
3	6.68 s	6.69 s	6.68 s	7.20 s	6.91 s
4	2.99 br d (14.1) 3.28 m	3.01 br d (14.1) 3.27 m	N.D.	4.88 br s	4.86^{^c} br s (W_1/2= 6.7 Hz)	5.24 br s (W_1/2= 6.2 Hz)	3.07 m, 3.26 m
5	3.49 m, 3.77 m	N.D.	N.D.	N.D.	3.68 br d (12.7), 3.62 m	3.64 m, 3.43 m	3.44 m, 3.83 m
6a	4.35 m	N.D.	4.37 br d (15.6)	4.22 br d (13.5)	4.12 br d (12.6)	4.34 m	4.30 br d (15.5)
7	2.85 m, 3.47 m	2.86 m, 3.47 m	N.D.	N.D.	2.90 t (13.8), 2.85 m	3.01 m, 3.07 m	2.83 m 3.44 m
8	7.19 s	7.20 s	7.03 s	6.98 s	6.90 s	6.91 s	6.95 s
11	7.99 s	8.02 s	7.95 s	8.16 s	8.04 s	7.65 s	7.63 s
1-OCH₂O-2	5.94 and 6.10 br s	5.99 and 6.14 br s	5.95 and 6.14 br s			6.08 and 6.16 br s	6.04 and 6.15 br s
9-OMe			3.91 s	3.88 s	3.86 s	3.86 s	3.86 s
10-OMe				3.85 s	3.89 s	3.83 s	3.82 s
N-Me	3.17 s	3.17 s	3.19 s	3.18 s	3.16 s		3.17 s
GlcUA
1″	5.04 d (7.6)	5.02 d (7.7)	4.94 d (7.8)	N.D.	4.73 d (8.0)	5.31 d (7.6)	5.29 d (6.4)
2′4′	3.49–3.67 m	3.49–3.65 m	3.49–3.67 m	3.49–3.67	3.48–3.67 m	3.50–3.64	3.49 m (2′, 3′), 3.59 m (4′)
5′	3.93 d (10.4)	3.93 d (9.5)	3.96 d (9.7)	3.98 d (10.2)	3.99 d (9.7)	3.88 d (9.5)	3.85 d (9.5)
1″	4.95 d (7.6)
5″	3.94 d (10.4)
Glc
1″		4.90 d (7.7)
6″		3.75 dd (5.2, 12.1), 3.85 dd (2.3, 12.1)

N.D., not detected.
↵a Data were obtained from direct NMR measurement (600 MHz, MeOH-d₄).
↵b Data were obtained from online HPLC-SPE-NMR.
↵c Signals were buried in DOH and were picked up from a 1D selective total correlation spectroscopy experiment.