Table 2.

NMR data for Phaeofuran B (2) in Acetone-d₆

Position	δH(mult; J in Hz)a	δCb	HMBC H# → C#	NOESY H# → H#
2α	4.42 (m)	76.0	3, 8, 10	2β, 9
2β	4.73 (ddd; 12, 5.9, 3.4)	---	3,4,7,8,10	2α, 4, 10, 11
3	---	133.8	---	---
4	4.36 (br d; 6)	61.7	3, 5, 6, 8	5
4-OH	4.43 (br d; 6)	---	3, 4, 5	---
5	3.33 (dd; 3.6, 1.2)	56.8	2, 3, 4, 6	4, 6
6	3.42 (ddd; 3.6, 3.3, 0.5)	55.3	5, 7, 8, 9	5, 7
7	4.64 (br m)	64.5	---	6, 10
7-OH	4. 18 (d; 7.2)	---	6, 7, 8	---
8	---	134.3	---	---
9	4.74 (m)	90.0	3, 4, 7, 8 10	2α, 10, 11
10	3.64 (m)	74.3	---	2β, 7, 9, 11
10-OH	3.84 (d; 5.4)	---	9, 10, 11	---
11	1.42 (m), 1.57 (m)	35.7	9, 10, 12, 13	9, 10, 12, 13
12	1.37 (m), 1.56 (m)	19.5	10, 11,13	11, 13
13	0.89 (t; 6.6)	14.5	11, 12	10, 11,12

^aRecorded at 400 MHz.

^bRecorded at 100 MHz.