Table 1. NMR Data for Tuaimenal B (1)^a.

pos	δC,b type	δH,c (J in Hz)	HMBCd	COSYd	NOESYd
1	137.8, C
2	147.1, C
3	118.0, C
4	109.8, CH	6.32, br s	1, 2, 3, 5, 7	22	22
5	138.6, C
6	119.7, C
7	122.1, CH	6.24, d (9.8)	4, 5, 6, 9	8	8
8	130.3, CH	5.57, d (9.8)	6, 9, 10, 21		21
9	78.6, C
10	41.0, CH2	1.67, m	9, 11, 12, 21
11	22.4, CH2	2.07, m	10, 12, 13
		2.13, m	10, 12
12	124.0, CH	5.13, t (6.54)	10, 11, 14, 20	20	14
13	135.3, C
14	39.7, CH2	1.97, t (7.63)	12, 13, 15, 20
15	26.7, CH2	2.06, m	13, 14, 16
16	124.3, CH	5.09, t (7.08)	15, 18, 19	15, 18, 19	19
17	131.3, C
18	17.7, CH3	1.60, s	16, 17, 19
19	25.7, CH3	1.68, s	16, 17, 18
20	15.9, CH3	1.59, s	12, 13, 14
21	25.8, CH3	1.33, s	8, 9, 10
22	9.3, CH3	2.04, s	2, 3, 4
23	168.9, C
24	20.4, CH3	2.34, s	23

^aCDCl₃, ppm, type established by phase-sensitive HSQC.

^b150 MHz.

^c600 MHz.

^d500 MHz.