Table 1.

¹H and ¹³C NMR data for nocapyrone R (1) in CDCl₃.

Position	δC a	δH mult (J in Hz) b	COSY b	HMBC b,c
1	166.3, qC
2	109.3, qC
3	168.4, qC
4	109.0, qC
5	159.3, qC
6	31.1, CH2	2.49, t (7.8)	7	4, 5, 7
7	27.7, CH2	1.61, m	6, 8	5
8	27.1, CH2	1.31, m	7, 9	10
9	38.7, CH2	1.18, m	8	7, 11, 12
10	27.9, CH	1.52, m		11, 12
11	22.6, CH3	0.86, d (6.5)	10, 12	9, 10, 12
12	22.6, CH3	0.86, d (6.5)	10, 11	9, 10, 11
13	10.2, CH3	2.03, s		1, 2, 3
14	60.2, CH3	3.80, s		3
15	10.1, CH3	1.92, s		3, 4, 5

^a recorded at 100 MHz; ^b recorded at 500 MHz; ^c HMBC correlations are from proton(s) stated to the indicated carbon.