Table 3. ¹H (500 MHz) and ¹³C (125 MHz) NMR data for citreohybriddional (1) in C₆D_6.

	Δ13	δH, mult (J = Hz)	HMBC	NOESY
1	27.4, CH2	α 2.21, dt (J = 12.2, 3.2) β 1.47, m		H-11 H-11
2	24.3, CH2	β 1.65, m, α 1.55, m	H-1β	H-25
3	76.9, CH	4.73, bt (J = 2.7)	H-24, H-25	H-2α, H-2β, H-24, H-25
4	37.8, C		H-24, H-25
5	46.8, CH	1.90, m	H-24, H-25
6	17.0, CH2	α 1.90, m β 1.49, m	H-5, H-7α
7	33.6, CH2	α 3.11, m β 2.08, dm (J = 13.6)	H-22	H-6α, H-6β
8	40.4, C		H-11, H-22
9	148.4, C		H-22
10	55.6, C		H-11, H-23
11	126.8, CH	5.53, s	H-21	H-1α, H-1β, H-21
12	76.5, C		H-11, H-20, H-21
13	53.6, C		H-11, H-20, H-21
14	72.4, C		H-20, H-22
15	202.6, C		H-18
16	75.5, C		H-18
17	202.9, C		H-18, H-20
18	8.3, CH3	1.36, s
19	168.3, C		H-28
20	10.8, CH3	1.14, s		H-21, H-22
21	24.5, CH3	0.99, s	H-11	H-20
22	26.8, CH3	1.39, s		H-20, H-23
23	201.2, CH	9.80, s	H-5	H-22, H-25
24	27.2, CH3	0.80, s	H-3, H-25	H-3
25	21.9, CH3	0.65, s	H-24	H-3, H-23
26	170.0, C		H-27
27	20.8, CH3	1.53, s		H-3
28	52.0, CH3	3.00, s

All assignments are based on COSY, HSQC and HMBC experiments, J is in Hz.