Table 1.

¹H and ¹³C NMR data of stachybotrychromenes A–C (1–3) in CD₃CN (δ in ppm, J in Hz)

	1		2		3
No.	δC, type	δH (J in Hz)	δC, type	δH (J in Hz)	δC, type	δH (J in Hz)
1	161.1, C		161.2, C		161.5, C
2	114.1, C		115.9, C		113.1, C
3	145.7, C		142.0, C		138.8, C
4	111.6, CH	6.20, s	111.3, CH	6.40, s	117.5, CH	6.90, s
5	161.6, C		161.2, C		160.4, C
6	107.6, C		109.6, C		114.0, C
7	116.1, CH	6.64, d (10.2)	113.1, CH	6.66, d (10.2)	115.8, CH	6.71, d (10.2)
8	128.0, CH	5.61, d (10.2)	129.1, CH	5.67, d (10.2)	131.8, CH	5.82, d (10.2)
9	81.6, C		82.0, C		82.4, C
10	42.1, CH2	1.69, m	42.1, CH2	1.72, m	42.1, CH2	1.77, m
11	23.3, CH2	2.07, m	23.3, CH2	2.09, m	23.2, CH2	2.12, m
12	124.8, CH	5.11, t (7.2)	124.7, CH	5.12, t (7.2)	124.6, CH	5.12, t (7.2)
13	136.3, C		136.3, C		136.5, C
14	40.3, CH2	1.94, m	40.3, CH2	1.93, m	40.3, CH2	1.94, m
15	27.3, CH2	2.03, m	27.3, CH2	2.02, m	27.3, CH2	2.03, m
16	125.2, CH	5.07, t (7.0)	125.2, CH	5.07, t (7.0)	125.2, CH	5.07, t (7.0)
17	132.2, C		132.2, C		132.2, C
18	17.7, CH3	1.57, s	17.8, CH3	1.57, s	17.7, CH3	1.57, s
19	25.8, CH3	1.64, s	25.8, CH3	1.64, s	25.8, CH3	1.64, s
20	16.0, CH3	1.54, s	16.0, CH3	1.54, s	16.0, CH3	1.54, s
21	27.4, CH3	1.39, s	27.5, CH3	1.41, s	27.5, CH3	1.45, s
22	195.2, CHO	10.05, s	194.9, CHO	10.01, s	196.6, CHO	10.63, s
23	18.4, CH3	2.49, s	63.3, CH2	5.26, s	193.5, CHO	10.02, s
24			171.2, C
25			21.1, CH3	2.04, s
OH-5		12.76, s		12.72, s		12.95, s