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. 2022 Mar 30;10:877469. doi: 10.3389/fchem.2022.877469

TABLE 1.

1H and13C NMR data (DMSO-d 6) for compounds 1 a and 2 b .

pos. 1 2
δ C δ H (J in Hz) δ C δ H (J in Hz)
1 131.4
2 110.7 6.83, d (1.8) 110.7 6.85, d (1.8)
3 147.5 147.5
4 145.9 145.9
5 115.5 6.79, d (8.2) 115.5 6.65, d (8.1)
6 119.4 6.70, dd (8.2, 1.8) 119.8 6.73, dd (8.1, 1.8)
7 80.7 4.25, d (7.2) 80.7 4.21, d (7.3)
8 44.4 2.11, td (7.2, 4.0) 44.1 2.16, m
9 63.4 3.80, m, 3.99, dd (11.1, 4.0) 63.1 4.19, m, 4.26, m
10 63.5 3.26, m, 3.33, m 63.5 3.22, dd (9.5, 7.0), 3.29, m
11 15.2 1.11, t (7.0) 15.2 1.07, t (7.0)
1′ 125.5 125.5
2′ 111.1 7.29, d (2.0) 111.1 7.30, d (2.0)
3′ 147.9 147.9
4′ 149.4 149.4
5′ 115.2 6.79, d (8.2) 115.2 6.77, d (8.2)
6′ 123.2 7.07, dd (8.2, 2.0) 123.2 7.07, dd (8.2, 2.0)
7′ 144.9 7.48, d (15.9) 144.9 7.51, d (15.9)
8′ 114.3 6.44, d (15.9) 114.3 6.46, d (15.9)
9′ 166.5 166.7
1″ 128.9 128.9
2″ 109.4 6.94, d (2.0) 109.4 6.89, d (1.9)
3″ 147.6 147.6
4″ 145.8 145.8
5″ 115.4 6.67, d (8.1) 115.4 6.79, d (8.2)
6″ 119.0 6.74, dd (8.1, 2.0) 119.0 6.71, dd (8.2, 1.9)
7″ 131.2 6.27, d (15.3) 131.3 6.17, d (15.1)
8″ 125.2 6.08, dd (15.3, 7.6) 124.7 5.96, dt (15.1, 7.0)
9″ 30.8 2.30, dt (14.9, 7.6), 2.48, m c 31.4 2.05, dt (14.6, 7.0), 2.14, m
MeO-3 55.5 3.74, s 55.6 3.75, s
MeO-3′ 55.7 3.82, s 55.7 3.81, s
MeO-3″ 55.4 3.74, s 55.5 3.72, s
a

Recorded at 600 MHz (1H) and 150 MHz (13C).

b

Recorded at 400 MHz (1H) and 100 MHz (13C).

c

Overlapping with solvent peak.