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. 2022 Jan 17;12:780. doi: 10.1038/s41598-021-04747-x

Table 2.

NMR (400 MHz) spectral data of compound 1 recorded in CDCl3.

Position δH (multiplicity; J in Hz) δC
1 1.72–1.58a 29.6
2 1.72–1.58a 17.3
3

2.24 (ddd; 13.71, 7.66, 5.64)

1.53 (ddd; 14.28, 7.45, 6.06)

27.7
4 42.7
5 1.92 (d; 4.66) 47.8
6 5.00 (brt; 4.52) 71.3
7 6.18 (m) 121.8
8 132.2
9 158.7
10 35.0
11 5.73 (d; 1.52) 111.7
12 163.6
13

4.96 (dt; 13.57)

4.87 (d; 13.57)

69.5
14 180.8
15 1.30 (s) 24.1
16 1.15 (s) 24.7

aOverlapping chemical shifts.