Table 1. NMR Data for Actinoranone 1 (methanol-d₄)^a.

no	δC, #H.b	δH (mult, J (Hz))	HMBC
1	39.3, CH2	1.85* 0.94 dt (13.5, 3.6)	3, 18
2	25.4, CH2	1.55, m 1.29, m	4, 10
3	42.3, CH2	1.42, m 1.16*	5
4	32.7, C
5	50.4, CH	1.16, m	7
6	23.7, CH2	1.97, m 1.86, m	7, 8
7	122.2, CH	5.38, br s	6, 8, 19
8	135.0, C
9	54.2, CH	1.61, m	11, 12
10	36.7, C
11	25.4, CH2	1.55, m 0.78, m	8, 13
12	42.1, CH2	2.24, m 2.01, m	9, 13, 14
13	139.5, C
14	126.8, CH	5.25, d (8.5)	15, 20
15	70.4, CH	4.47, dd (8.5, 8.5)	8′
16	32.5, CH3	0.86, s	3, 4, 5, 17
17	21.0, CH3	0.90, s	3, 4, 5, 16
18	12.8, CH3	0.78, s	1, 5, 9, 10
19	21.5, CH3	1.71, s	7, 8, 9
20	15.6, CH3	1.63, s	12, 13, 14
1′	197.3, C
2′	115.5, C
3′	162.7, C
4′	97.2, CH	6.50, d (2.0)	2′, 5′, 6′
5′	164.4, C
6′	107.5, CH	6.56, d (2.0)	2′, 4′, 5′, 7′, 8′
7′	150.4, C
8′	45.3, CH	2.97, m	15, 2′, 6′, 7′, 9′, 10′
9′	23.8, CH2	2.12, m	1′, 7′
10′	36.3, CH2	2.44, ddd (18.0, 11.0, 8.0) 2.59, dt (18.0, 4.5)	1′, 2′, 8′, 9′
11′	54.9, CH3	3.83, s	3′
12′	55.0, CH3	3.87, s	5′

^a500 MHz for ¹H NMR and 75 MHz for ¹³C NMR.

^bThe number of attached protons was determined by analysis of 2D spectroscopic data.

^*The coupling constant was not determined because of overlapping signals.