Table 2.

¹H (600 MHz) and ¹³C NMR (125 MHz) for xestoproxamine B (2) (CD₃OD)

No.	δC, mult.a	δH, mult (J in Hz, ax/eq)	COSY	HMBCb
1	55.7, CH2	3.23, dd (12.0, 12.0, ax)	3	2, 3, 5, 11, 30
		3.16, m (eq)		2, 3, 5, 11, 30
2	29.9, CH	2.24, m (ax)	1, 3, 30	1, 3, 29, 30
3	36.1, CH	1.87, m (ax)	2, 4	1, 2, 4, 5 8, 10, 29 30
4	25.3, CH2	1.81, m (eq)	3, 5	2, 3, 9 11
		1.68, m (ax)		2, 3, 9
5	47.5, CH2	3.45, brd (13.7, eq)	4	1, 3, 4
		3.17, m (ax)		1, 3, 4
6	57.4, CH2	3.23, brd (12.0, eq)	7	7, 8, 10, 20, 21
		2.85, dd (12.0, 12.0, ax)		7, 8, 10, 21
7	34.5, CH	1.91, m (ax)	6, 8, 20	6, 8, 19, 20
8	27.9, CH2	1.87, m (eq)	7, 9	3, 6, 7, 9, 10, 20
		1.08, ddd (12.0, 12.0, 12.0, ax)		3, 6, 7, 9, 10, 20
9	42.1, CH	1.78, m (ax)	8, 10	4, 7,
10	56.7, CH2	3.53, m (eq)	9	6, 8 9, 21
		2.98, dd (12.0, 12.0, ax)		6, 8, 9
11	49.3, CH2	3.30, m	12	1, 5, 12, 13
		3.02, m		1. 5, 12, 13
12	21.7, CH2	1.77, m	11, 13	11, 13, 14
		1.65, m		11, 13
13	25.4, CH2	1.68, m	12, 14	11, 12, 14, 15
		1.60, m		11, 12, 15
14	27.5, CH2	1.44, m	13, 15	12, 13, 15
15	28.9, CH2	1.44, m	14, 16	13, 16, 17
		1.26, m		13, 16, 17
16	29.5, CH2	2.22, m	15, 17	14, 15, 17, 18
		2.00, m		14, 15, 17, 18
17	131.7, CH	5.48, m	16, 18	16, 18, 19
18	129.2, CH	5.33, m	17, 19	17, 18, 19
19	23.5, CH2	2.45, m	18, 20
		2.15, m		17, 20
20	31.7, CH2	1.75, m	19, 7	6, 7, 18,
		1.28, m		6, 7, 8, 18, 19
21	56.1, CH2	3.30, m	22	6, 10, 22, 23
		3.07, m		6, 10, 22, 23
22	20.0, CH2	1.77, m	21, 23	21, 23
23	26.2, CH2	1.50, m	22, 24	22
		1.37, m		21, 22
24–28	29.0-26.4, CH2	1.53-1.25, m
29	21.8, CH2	1.25, m	30
		1.21, m
30	32.1, CH2	1.69, m	2, 29	1, 2, 3
		1.44, m		1, 2, 3

^aDetermined from DEPT and HSQC.

^bHMBC correlations, optimized for 8 Hz, are from proton(s) stated to the indicated carbon.

^cObserved by HSQC.

^dMay be interchanged.