Table 2.

¹³C NMR spectroscopic data of 9 and 10.^a

Position	9 from Calloseris sp. δC (150 MHz, CDCl3)	9 from Dendronephthya sp. [26] δC (125 MHz, CDCl3)	10 from Calloseris sp. δC (150 MHz, CDCl3)	10 from Phorbas amaranthus [27] δC (100 MHz, CDCl3)
1	46.67	46.7	46.66	nr
2	79.79	79.8	79.88	79.9
3	172.90	172.9	173.35	173.4
4	201.05	201.0	200.89	200.9
5	145.17	145.2	145.09	145.1
6	136.00	135.9	136.26	136.3
7	32.17	32.2	32.19	nr
8	32.32	32.4	32.31	nr
9	49.65	49.7	49.64	nr
10	39.89	39.9	39.91	nr
11	21.78	21.8	21.77	nr
12	39.34	39.5	39.33	nr
13	42.90	42.9	42.89	nr
14	56.25	56.1	56.25	nr
15	24.32	24.3	24.32	nr
16	28.12	28.1	28.12	nr
17	56.09	56.3	56.07	nr
18	12.01	12.0	12.00	nr
19	22.08	22.1	22.07	nr
20	35.73	35.7	35.72	35.7
21	18.73	18.7	18.72	18.7
22	36.15	36.2	36.14	36.1
23	23.83	23.9	23.83	23.8
24	39.47	39.3	39.47	39.5
25	28.00	28.0	28.00	28.0
26	22.81	22.8	22.54	22.5
27	22.55	22.5	22.80	22.8
1′	62.66	62.7	53.37	53.4
2′	14.08	14.2	−	−

^a Numbering of the steroidal framework, see Figure 4; nr = not reported.