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. 2022 Apr 3;11(4):709. doi: 10.3390/antiox11040709

Table 2.

1H (700 MHz), 13C (175 MHz), HMBC, COSY, and ROESY NMR data for compound 11 (δ in ppm, J in Hz, CDCL3).

Position 13C 1H HMBC COSY ROESY
1 194.7
2 194.6
3 109.1
4 158.9
5 115.3
6 152.5
7 136.8
8 113.7 6.84, s, 1H C-2, 4, 6, 7 OH-7
1′ 111.1
2′ 165.2
3′ 104.3 6.44, s, 1H C-1′, 2′, 4′, 5′
4′ 163.7
5′ 119.9
6′ 133.9 7.18, s, 1H C-1, 1′, 2′, 5′, 1‴ H-1‴
1″ 22.0 3.51, d, J = 7.3, 2H C-4, 5, 6, 2″, 3″ H-2″, 9″ H-2″, 9″, OH-6
2″ 120.5 5.33, t, J = 7.3, 1H C-1″ H-1″, 9″ H-1″, 4″, OH-6
3″ 139.7
4″ 39.7 2.09, m, 2H C-2″, 3″, 5″, 6″ H-2″, 6″
5″ 26.4 2.13, m, 2H C-3″, 6″, 7″ H-6″ H-6″
6″ 123.8 5.07, m, 1H H-5″, 8″, 10″ H-4″, 5″
7″ 132.1
8″ 25.7 1.68, s, 3H C-6″, 7″, 10″ H-6″
9″ 16.3 1.84, s, 3H C-2″, 3″, 4″ H-1″, 2″ H-1″
10″ 17.7 1.60, s, 3H C-6″, 7″, 8″ H-6″
1‴ 29.1 3.23, d, J = 7.2, 2H C-4′, 5′, 6′, 2‴, 3‴ H-2‴, 4‴, 5‴ H-2‴, 4‴, 5‴, 6′, OH-4′
2‴ 120.8 5.20, t, J = 7.2, 2H H-1‴, 4‴, 5‴ H-1‴, 5‴
3‴ 136.4
4‴ 25.7 1.73, s, 3H C-2‴, 3‴, 5‴ H-1‴, 2‴ H-1‴
5‴ 17.9 1.71, s, 3H C-2‴, 3‴, 4‴ H-1‴, 2‴ H-1‴, 2‴
OH-4 11.92, s, 1H C-3, 4, 5
OH-6 6.68, s, 1H C-5, 6, 7 H-2″, 1″, OH-7
OH-7 5.05, bs, 1H H-8, OH-6
OH-2′ 11.59, s, 1H C1′, 2′, 3′, 4′
OH-4′ 6.11, s, 1H C-3′, 4′, 5′ H-1‴