Table 2.

¹H, ¹³C, HMBC and NOESY correlation data for tokinolide C (7) ^a.

Position	δc, Type	δH, (J in Hz)	HMBC (H → C)	NOESY
1	168.7, qC
3	148.9, qC
3a	153.5, qC
4	19.0, CH2	2.21 m, 2.57 m	3, 5, 6, 3a, 7a	8, 9
5	21.9, CH2	1.98 m	6, 3a	6, 4′
6	37.1, CH	2.99 dt (10.4, 8.5)	5, 7, 3a′	5, 4′, 7′
7	37.0, CH	3.39 d (8.5)	6, 3a, 7a, 7a′
7a	124.5, qC
8	112.2, CH	5.24 t (7.9)	3, 3a, 10	4, 9, 10, 11
9	27.2, CH2	2.37 m	3, 8, 10, 11	4, 8, 10, 11
10	22.34, CH2	1.51 m	8, 9, 11	8, 9, 11
11	13.56, CH3	0.96 t (7.4)	9, 10	8, 9, 10
1′	176.9, qC
3′	153.4, qC
3a′	48.5, qC
4′	24.1, CH2	1.77 m, 1.88 m	6, 3′, 6′, 7a′	6′, 7′, 8′, 6, 5
5′	20.6, CH2	1.86 m	3a′, 4′, 6′	8′
6′	133.8, CH	6.11 ddd (9.9)	4′, 5′, 7a′	4′, 7′
7′	121.0, CH	5.77 dd (1.7, 9.9)	4′, 3a′	4′, 6, 5
7a′	48.3, qC
8′	103.9, CH	4.88 t (7.9)	3′, 3a′, 10′	4′, 9′, 10′, 11′
9′	28.0, CH2	2.18 m	3′, 8′, 10′,11′	8′, 10′, 11′
10′	22.6, CH2	1.44 m	8′, 9′, 11′	8′, 9′, 11′
11′	13.7, CH3	0.92 t (7.4)	9′, 10′	8′, 9′, 10′

^a Data obtained on a Varian 600 MHz instrument in CDCl₃.