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. 2021 Jul 6;11(4):447–452. doi: 10.1007/s13659-021-00316-x

Table 1.

1H NMR Data for 15 in Methanosl-d4 (δ in ppm, J in Hz)

No. 1 2 3 4 5
2

3.63, m

3.46, d (0.9)

6.99, br s 7.07, d (2.2) 7.03, q (1.2) 7.05, d (1.3)
5 4.12, d (7.9)
6 4.46, dd (14.0, 5.2) 4.55, dd (14.0, 5.4) 3.86, ddd (12.0, 7.9, 3.7) 4.56, dd (14.0, 5.4) 2.74, m; 2.41, m
7

1.99, m

1.82, d (6.6)

2.11, dd (12.9, 5.4)

1.96, m

1.74, dd (13.0, 3.8)

1.65, t (12.7)

2.11, dd (12.9, 5.5)

1.95, m

2.06, dd (13.5, 4.4)

1.92, m

9

2.26, td (14.5, 13.9, 3.9)

1.57, m

2.58, td (14.3, 3.1)

1.72, m

2.27, ddd (13.2, 12.8, 3.1)

1.57, m

2.58, m

1.72, m

1.59, ddd (14.4, 4.7, 3.2)

2.45, m

10

1.79, m

1.54, m

1.98, d (3.5)

1.70, q (3.7)

1.83, dt (13.9, 3.5)

1.51, dd (13.9, 3.1)

1.90, m

1.78, dd (14.1, 3.4)

1.89, m

1.76, dd (13.7, 3.1)

12 1.96, d (2.8)
15 1.85, s 1.74, s 4.19, m 1.75, s 1.71, s
16 1.09, s 1.09, s 0.97, d (11.1) 1.10, s 1.08, s
17 1.06, s 1.11, s 1.09, d (7.2) 1.11, s 1.11, s
18 2.05, m 2.51, m 2.5, m 2.72, m 2.70, m
19 0.79, d (6.9) 1.29, dd (10.4, 6.9) 1.29, d (6.9)

4.40, dd (10.5, 8.1)

4.30, dd (10.5, 7.1)

4.40, dd (10.5, 8.1)

4.30, dd (10.5, 7.2)

20 1.12, d (6.9) 1.29, dd (10.4,6.9) 1.27, d (6.9) 1.27, d (6.9) 1.27, d (7.0)
22 1.99, s 1.99, s