Table 1.

¹H and ¹³C NMR data for AD210a (5). ¹H and ¹³C NMR data were recorded in DMSO-d₆ (500 MHz for ¹H and 125 MHz for ¹³C). Chemical shifts are reported in δ (ppm). Coupling constants are reported in Hz. Carbons are labeled according to their number in polyketide backbone.

	AD210a (5)
no.	13C	1H	Long-range 13C-1H HMBC correlations	Long-range 1H -1H COSY correlations
1	160.5
2	88.1	5.13 (d, J = 1.7, 1H)	C3, C4, C15	H4
3	170.2
4	100.7	5.56 (d, J = 1.7, 1H)	C2, C3, C10, C20	H2
5	159.0
6	36.9	3.51 (s, 2H)	C4, C7, C8, C11
7	136.9
8	119.1	6.21 (d, J = 1.8, 1H)	C6, C10, C11	H10
9	160.5
10	100.1	6.08 (d, J = 1.8, 1H)	C9, C12	H8
11	164.7
12	108.3
13	199.7
14	110.1
15	163.5
16	108.4	6.07 (d, J = 3.6, 1H)	C15, C18, C21	H18
17	160.2
18	108.3	6.16 (d, J = 3.6, 1H)	C8, C16, C17, C20	H16
19	144.7
20	33.1	2.19 (t, J = 6.5, 2H)	C12, C19, C21	H21
21	31.4	1.21 (p, J = 5.9, 6.5, 2H)	C20, C22, C23	H20, H22
22	30.3	1.14 (m, 2H)	C20, C21, C23	H21, H23
23	21.8	1.04 (m, 2H)	C21, C22, C24	H22, H24
24	13.9	0.78 (t, J = 5.75, 3H)	C21, C22, C23	H23