Table 1.

¹H (300 MHz) and ¹³C NMR data (125 MHz) of 13-hydroxyversicolorin B (3) in DMSO-d ₆

Position	δc	δH	H-H COSY	HMBC
1	164.1
2	107.8	6.51 (H, d, 2.4)	4	1, 3, 4, 9a
3	165.4
4	109.0	7.03 (H, d, 2.4)	2	4, 10
4a	134.4
5	101.2	6.98 (H, s)		7, 8, 8a, 10
6	159.1
7	117.1
8	165.0
8a	110.5
9	188.4
9a	108.0
10	180.4
10a	135.2
11	112.8	6.60 (H, d, 5.5)	12	7, 8, 12, 13, 14
12	53.2	3.91 (d, 5.5)	11	6, 7, 8, 11, 13, 14
13	72.7	4.44 (d, 1.8)	14	7, 11, 14
14	74.8	3.59 (H, dd, 2.3,10.1), 3.91 (H, d, 10.1)	13	11, 12, 13