Table 1.

NMR assignments of 1 by DEPT, HSQC, HMBC, and NOESY experiments in C₅D₅N ^a.

Position	δH (J in Hz)	δC, Mult.	HMBC	NOESY
1	1.51, ddd (13.6, 5.6, 5.6)	39.0 CH	C-2, C-4, C-5, C-10, C-14,C-15	H-3, H-4, H-7
2	Hα: 1.82, m	31.5 CH2	C-1, C-3
	Hβ: 2.01, m		C-1, C-3
3	5.45, ddd (8.1, 7.5, 5.0)	71.0 CH	C-1, C-4, C-5, C-16	Hα-2, Hβ-2, H-4
4	3.64, d (7.5)	75.9 CH	C-3, C-5, C-6, C-15	H-1, H-3, H-7
5	–	43.3 qC
6	Hα: 1.94, br d (14.3)	30.5 CH2	C-5, C-7, C-15	H-4, H-7
	Hβ: 1.16, overlapped			Hβ-9
7	2.51, m	36.7 CH	C-5, C-6, C-11, C12	H-1, H-4, H-8, H-11
8	4.58, ddd (13.2, 8.6, 2.8)	79.7 CH	C-7	H-7, Hα-9, Hβ-9, H-11
9	Hα: 2.07, m	36.4 CH2	C-1, C-7, C-8, C-10, C-14
	Hβ: 1.66, br d (12.7)		C-1, C-7, C-8, C-10	Hβ-6, H-14, H-15,
10	1.80, m	28.5 CH	C-1, C-5, C-14
11	2.94, m	37.5 CH	C-6, C-7, C-12, C-13	H-7, H-8, H-13
12	–	177.8 qC
13	1.02, d (7.4)	9.7 CH3	C-7, C-11, C-12	Hβ-6, H-7, H-11
14	0.90, d (7.0)	16.4 CH3	C-1, C9, C-10	Hα-9
15	1.18, s	17.5 CH3	C-1, C-4, C-5, C-6	Hβ-9, H-10
16	–	169.8 qC
17	2.04, s	20.3 CH3	C-16	H-3

Note: ^{a 1}H (400 MHz) and ¹³C (100 MHz) NMR; δ in ppm.