Table 1.

NMR data of acremonidin E (1, DMSO-d₆)^a

No.	δc, mult.b	δH (J in Hz)	COSY	HMBC
1	167.9, qC
2	112.3, qC
3	141.2, CH
4	117.4, CH	6.93, d (J = 8.8 Hz)	5	2
5	122.1, CH	6.81, d (J = 8.8 Hz)	4	3,7
6	146.5, CH
7	131.1, qC
8	199.9, qC
9	108.9, qC
10	162.2, CH			12
11	107.4, qC	6.11, s		15
12	147.4, qC
13	107.4, CH	6.11, s		15
14	162.2, CH			12
15	22.3, CH3	2.17, s
16	52.5, OCH3	3.55, s		1
3-OH		11.37, br s
6-OH		11.37, br s
10-OH		9.20, br s
14-OH		9.70, br s

^a300 MHz for ¹H NMR and 125 MHz for ¹³C NMR.

^bMultiplicity was determined by analysis of 2D spectra.