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. 2020 Nov 24;25(23):5497. doi: 10.3390/molecules25235497

Table 2.

13C and 1H-NMR spectroscopic data (1H 500 MHZ, 13C 125 MHZ in Methanol-d4, δ in ppm) for compounds 1 and 2.

Position 1 2
δC, Type δH (J in Hz) δC, Type δH (J in Hz)
2 164.4, C - 165.1, C -
4 129.0, C - 129.6, C -
5 159.1, C - 159.3, C -
6 34.3, CH2 4.00, s 34.3, CH2 4.04, s
7 127.0, C - 126.9, C -
8 131.0, CH 7.10, d (9.0) 131.0, CH 7.12, d (9.0)
9 116.7, CH 6.73, d (9.0) 116.7, CH 6.73, d (9.0)
10 157.9, C - 158.0, C -
11 116.7, CH 6.73, d (9.0) 116.7, CH 6.73, d (9.0)
12 131.0, CH 7.10, d (9.0) 131.0, CH 7.12, d (9.0)
13 163.9, C - 163.6, C -
14 52.4, CH3 3.87, s 52.6, CH3 3.88, s
15 30.8, CH2 3.19, t (6.5) 67.3, CH 5.33, t (6.5)
16 60.6, CH2 3.80, t (6.5) 65.1, CH2 3.73, dd (11, 6.5)
3.78, dd (11, 6.5)