Table 1.

1D and 2D NMR spectroscopic data for compound 1 in CD₃OD. ^a

Position	δH (J in Hz)b	δC (mult.)		HMBC	NOESY
1
2		166.5	C
3	6.60 (1H, br s)	103.8	CH	2, 4, 10, 1’	2’
4		184.0	C=O
5		158.7	C
6		111.6	C
7		164.6	C
8	6.52 (1H, br s)	96.0	CH	6, 7, 8, 9	2’, 6’
9		158.3	C
10		104.9	C
1’		123.6	C
2’	7.44 (1H, d, 1.8 Hz)	120.4	CH	2, 3, 1’	3
3’		147.1	C
4’		151.1	C
5’	6.94 (1H, d, 7.8 Hz)	116.8	CH	1’, 4’, 6’	6’
6’	7.42 (1H, dd, 7,8, 1.8 Hz)	114.2	CH	2, 1’, 5’	5’
1”	5.53 (1H, dd, 12.6, 2.4 Hz)	70.0	CH	5, 6, 7, 2”	5”
2ax”	2.31 (1H, ddd, 14.4, 12.6, 2.4 Hz)	32.8	CH2	1”, 3”	3”
2eq”	1.77 (1H, dd, 14.4, 3.0 Hz)			1”, 3”	3”
3”	4.04 (1H, d-like, 3.0 Hz)	68.8	CH	2”, 4”	2ax”, 2eq”, 4”
4”	3.43 (1H, d-like, 3.0 Hz)	70.6	CH	3”, 5”	3”
5”	4.18 (1H, q, 6.6 Hz)	72.7	CH	4”, 6”	1”, 6”
6”	1.33 (3H, d, 6.6 Hz)	17.4	CH3	4”, 5”	5”

^{a 1}H-NMR measured at 600 MHz, ¹³C-NMR measured at 150 MHz, TMS was used as the internal standard; ^b Chemical shifts are shown in the δ scale with J values (Hz) in parentheses.