Table 2.

NMR Spectroscopic Data for Fijiolide B (2) (DMSO-d₆)^a

No.	δC, mult. b	δH (J in Hz)	COSY	HMBCc
1	148.2, C
2	135.7, C
3	126.9, C
4	139.8, C
5	129.5, CH	6.66, d (8.0)	6	3, 4, 6, 7, 13
6	125.5, CH	7.16, d (8.0)	5	2, 4, 5, 7, 8
7	147.8, C
8	83.9, CH	5.88, s		1, 2, 6, 7, 9, 10, 21
9	100.4, C
10	135.8, CH	6.62, d (5.3)	11	1, 8, 9, 11, 12
11	138.5, CH	6.65, dd (5.3, 2.1)	10, 12	1, 9, 10, 12,
12	129.9, CH	6.75, d (2.1)	11	1, 2, 9, 10, 11
13	72.7, CH	4.66, dd (11.0, 4.0)	14, 13-OH	3, 4, 5, 14
14	65.5, CH2	4.28, dd (11.0, 4.0), 3.68, dd (11.0, 4.0)	13	4, 13, 15
15	168.4, C
16	41.7, CH2	2.85, dd (13.4, 1.8), 2.20, t (13.4)	17	15, 17, 18
17	51.2, CH	4.09, dd (13.4, 1.8)	16	15, 16, 18, 19, 23
18	133.1, C
19	114.4, CH	6.76, d (2.0)	23	17, 18, 20, 21, 23
20	130.1, C
21	139.9, C
22	151.7, C
23	115.2, CH	6.06, d (2.0)	19	17, 18, 21, 22
1′	93.4, CH	4.44, d (8.0)	2′	9, 2′, 3′, 5′
2′	69.6, CH	2.91, br s	1′, 3′	1′, 4′
3′	67.8, CH	4.05, br s	2′, 4′	1′, 5′
4′	69.6, CH	2.99, br s	3′	4′-NMe2
5′	75.3, C
4′-NMe2	42.9, CH3	2.79, br s		4′
4′-NMe2	44.6, CH3	2.79, br s		4′
6′-Meα	31.9, CH3	1.37, s		4′, 5′, 6′-Meβ
6′-Meβ	21.2, CH3	1.41, s		4′, 5′, 6′-Meα
13-OH		5.86	13
17-NH2		8.58
22-OH		8.84, s		21, 22, 23
2′-OH		4.97, br s	2′
3′-OH		5.72, br s	3′
4′-NH+		9.13, br s	4′-NMe2

^a600 MHz for ¹H NMR.

^bNumbers of attached protons were determined by analysis of 2D spectra.

^cHMBC correlations are from the stated protons to the indicated carbons.