Table 1. NMR Data of Enigmazole C (1) in CD₃CN and Acetone-d₆.

	CD3CN δH, m (J in Hz)		acetone-d6
pos.	δC, type	δH, m (J in Hz)	δC	δH, m (J in Hz)
1	175.6, C		174.9
2	39.9, CH	2.49, m	39.7	2.53 ddq (10.6, 6.9, 3.4)
3	30.8, CH2	a: 1.69, m	30.8	a: 1.79, dddd (13.8, 9.9, 5.4, 3.4)
		b: 1.63, m		b: 1.68, dddd (13.8, 10.6, 5.3, 5.3)
4	34.5, CH2	a: 1.43, m	34.5	a: 1.51, dddd (14.4, 9.9, 5.3, 2.2)
		b: 1.31, m		b: 1.38, dddd (14.4, 10.4, 5.4, 5.3)
5	69.5, CH	3.74, ddddd (10.4, 7.6, 5.5, 5.5, 2.5)	69.6	3.83, ddddd (10.4, 8.1, 5.8, 4.5, 2.2) 2.2)
6	44.6, CH2	a: 2.49, dd (13.2, 5.5)	44.9	a: 2.59, dd (13.1, 4.5)
		b: 2.27, dd (13.2, 7.6)		b: 2.31, dd (13.1, 8.1)
7	175.5, C		174.8
8	106.8, CH	5.30, d (1.0)	106.8	5.28, bs (1.0)
9	193.6, C		192.4
10	42.2, CH2	a: 2.41, dd (16.7, 14.0)	42.3	a: 2.41, dd (16.7, 14.0)
		b: 2.23, dd (16.7, 2.6)		b: 2.26, dd (16.7, 2.7)
11	77.8, CH	4.48, ddt (14.0, 11.0, 2.6, 2.6)	77.4	4.53 ddt (14.0, 11.0, 2.7, 2.7)
12	42.9, CH2	a: 1.81, ddd (14.2, 10.9, 2.6)	43.1	a: 1.85, ddd (14.1, 11.0, 2.7)
		b: 1.46, dd (14.2, 11.0)		b: 1.54, ddd (14.2, 11.1, 2.3)
13	25.8, CH	2.20, m	25.6	2.29, m
14	40.2, CH2	a: 2.49, dd (15.8, 1.5)	40.0	a: 2.27, dd (16.0, 2.7)
		b: 1.59, dd (15.8, 10.7)		b: 1.61, dd (16.0, 11.0)
15	143.9, C		143.8
16	42.2, CH2	a: 2.72, dd (13.7, 9.6)	42.3	a: 2.75, dd (13.8, 9.7)
		b: 2.62, dd (13.7, 5.2)		b: 2.67, dd (13.8, 5.1)
17	66.7, CH	5.92, ddd (9.4, 5.2, 0.8)	66.3	6.00, dd (9.7, 4.9)
18	141.7, C		142.0
19	135.9, CH	7.63, d (0.7)	135.6	7.77, s
20	161.2, C		161.0
21	113.6, CH	6.20, dd (1.5, 0.8)	113.5	6.21, bs
22	152.7, C		152.4
23	75.5, CH	5.20, dq (6.5, 0.8)	75.3	5.29, bq (6.5)
24	19.5, CH3	1.23, d (6.5)	19.4	1.24, d (6.5)
25	17.7, CH3	1.86, d (1.5)	17.5	1.88, d (1.6)
26	17.6, CH3	1.10, d (6.9)	17.6	1.11, d (6.9)
27	21.2, CH3	0.95, d (6.7)	21.2	0.98, d (6.6)
28	113.9, CH2	a: 4.91, s	113.5	a: 4.94, s
		b: 4.86, s		b: 4.88, s
29	56.6, CH3	3.15, s	56.5	3.17, s
OH	-	3.00, d (6.0)	-	3.90 d (5.8)