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. Author manuscript; available in PMC: 2018 Feb 21.
Published in final edited form as: J Nat Prod. 2016 Jan 29;79(2):447–450. doi: 10.1021/acs.jnatprod.5b00972

Table 1.

NMR spectroscopic data (500 MHz, DMSO-d6) for thalassotalic acids A–C (1–3) and thalassotalamides A (4) and B (5).

Thalassotalic acid A (1) Thalassotalic acid B (2) Thalassotalic acid C (3) Thalassotalamide A (4) Thalassotalamide B (5)
position δC δH (J in Hz) δC δH (J in Hz) δC δH (J in Hz) δC δH (J in Hz) δC δH (J in Hz)
1 166.7, C 166.7, C 166.8, C 167.2, C 167.2, C
1-OH/NH2 12.35, br s 12.23, br s 12.26, br s 7.28/7.05, br s 7.28/7.05, br s
2 124.2, C 124.3, C 124.5, C 127.0, C 127.0, C
2-NH 9.23, s 9.22, s 9.20, s 9.18, s 9.19, s
3 132.2, CH 7.22, s 132.0, CH 7.22, s 131.7,a CH 7.21, s 128.6, CH 7.06, s 128.6, CH 7.06, s
4 124.7, C 124.7, C 124.8, C 125.0, C 125.0, C
5 131.7, CH 7.51, d (8.7) 131.7, CH 7.51, d (8.6) 131.7,a CH 7.50, d (8.5) 131.2, CH 7.42, d (8.7) 131.2, CH 7.42, d (8.5)
6 115.3, CH 6.80, d (8.7) 115.3, CH 6.80, d (8.5) 115.3, CH 6.79, d (8.5) 115.2, CH 6.78, d (8.7) 115.2, CH 6.78, d (8.5)
7 158.5, C 158.5, C 158.5, C 158.0, C 158.1, C
7-OH 9.94, br s 10.02, br s 10.03, br s 10.00, br s 10.03, br s
1′ 172.0, C 171.9, C 171.8, C 172.0, C 172.0, C
2′ 35.1, CH2 2.28, t (7.2) 35.2, CH2 2.28, t (7.4) 35.2, CH2 2.28, t (7.2) 35.2, CH2 2.32, t (7.5) 35.2, CH2 2.32, t (7.5)
3′ 25.0, CH2 1.59, m 25.0, CH2 1.59, m 25.0, CH2 1.59, m 24.7, CH2 1.58, m 24.7, CH2 1.58, m
4′ 28.6–29.0, CH2 1.31, ma 28.7, CH2 1.34, ma 28.6–28.8, CH2 1.31, ma 28.7–28.9, CH2 1.31, ma 28.8, CH2 1.32, ma
5′ 28.6–29.0, CH2 1.31, ma 29.1, CH2 1.30, ma 28.6–28.8, CH2 1.31, ma 28.7–28.9, CH2 1.31, ma 29.1, CH2 1.28, ma
6′ 28.6–29.0, CH2 1.31, ma 26.7, CH2 1.30, ma 28.6–28.8, CH2 1.31, ma 28.7–28.9, CH2 1.31, ma 26.7, CH2 1.30, ma
7′ 28.6–29.0, CH2 1.31, ma 38.4, CH2 1.19, m 31.2, CH2 1.30, ma 28.7–28.9, CH2 1.31, ma 38.4, CH2 1.19, m
8′ 31.3, CH2 1.29, ma 27.4, CH2 1.55, m 22.1, CH2 1.32, ma 31.3, CH2 1.29, ma 27.4, CH2 1.55, m
9′ 22.1, CH2 1.30, ma 22.5, CH3 0.90, d (6.6) 13.9, CH3 0.90, t (7.0) 22.1, CH2 1.30, ma 22.5, CH3 0.89, d (6.5)
10′ 13.9, CH3 0.90, t (7.0) 13.9, CH3 0.90, t (7.0)
a

Overlapped signal