. 2025 Jan 30;88(2):349–360. doi: 10.1021/acs.jnatprod.4c01105

Table 3. ¹H NMR Data (600 MHz, DMSO-d₆) of Compounds 1–8^a.

Position	5	6	7	8
1	3.46, t (6.1)	3.45, t (6.3)	3.48, m	3.45, t (5.8)
2′	3.36, m^b	3.35, m^b	3.34, m^b	3.37, dt (12.4, 6.2)
2″	3.28, dd (13.4, 6.4)^b	3.28, m^b	3.02, dt (13.5, 6.8)	3.28, dt (13.8, 6.0)
4	4.51, m	4.49, dd (12.7, 6.5)		4.51, dd (12.0, 6.5)
5′	2.13, m^b	2.12, dd (11.2, 6.5)	2.01, m^b	2.13, dd^b
5″	1.04, t (11.6)	1.01, t (11.6)	1.73, m^b	1.04, m^b
7	2.55, m	2.53, m^b	1.52, t (11.1)	2.54, d (17.5)
8			2.52, m^b
9			2.36, m
11′	1.51, m^b	1.61, m^b	1.36, m^b	1.51, td (11.0, 5.4)^b
11″		1.42, m
12′	2.23, m	2.04, m	2.00, m^b	2.21, m
12″	2.12, m^b			2.13, dd (11.2, 6.5)^b
13	1.77, dt (10.5, 4.8)	1.75, dt (10.7, 5.1)	1.73, m^b	1.77, m
14	1.98, m	1.93, qd^b	1.74, m^b	1.96, m^b
15′	1.48, m^b	1.62, m^b	1.42, m^b	1.48, m^b
15″	1.35, m^b	1.37, m	1.27, m^b	1.34, m
16′	1.50, m^b	1.51, m^b	1.38, m^b	1.48, m^b
16″	1.23, m^b	1.24, m^b	1.30, m^b	1.23, m^b
18′	1.64, d (13.5)	1.60, m^b	1.63, d (12.4)^b	1.64, d (9.1)
18″	1.23, m^b	1.24, m^b	1.24, m^b	1.24, m^b
19	1.21, s	1.21, s	1.11, s	1.21, s
20	0.90, s	0.93, s	0.87, s	0.90, s
21	1.43, m	2.53, m^b	1.40, m	1.43, m
22′	1.22, m^b	5.15, t (8.5)	1.40, m^b	1.27, m
22″	0.99, m		0.97, m	1.00, m^b
23′	1.29, m^b	6.04, d^b (8.5)	1.89, m^b	1.99, m^b
23″				1.91, m^b
24′	1.30, m^b	6.05, s^b	5.11, t (7.3)	5.09, td (6.5, 1.5)
24″	1.12, m^b
25	1.74, m^b
26′	3.98, dd (10.7, 5.8)	1.78, s	1.64, s	1.64, s
26″	3.90, dd (10.7, 6.5
27	0.80, d (6.6)	0.89, d (6.7)	0.83, d (6.6)	0.81, d (6.6)
28	0.88, d (6.7)	1.71, s	1.57, s	1.56, s
29	8.24, s

δ_H in ppm, J in Hz.

Signal overlapped.

Table 3. 1H NMR Data (600 MHz, DMSO-d6) of Compounds 1–8a.