Table 2.

Spectrum data for compound 8f.

1H NMR	1H-1HCOSY		Assignment
13.41 (bs; 1H)			OH-4/4’
12.91 (bs; 1H)			OH-4’/4
12.20 (s; 2H)	6.81		NH-1/1’, 1″
12.09 (bs; 1H)			NH-1’/1
8.84 (s; 1H)			H-d
7.47 (d, J = 8.3; 1H)	7.38, 7.22		H-7″
7.40 (d, J = 9.2; 2H)	7.26		H-8, 8’
7.38 (d, J = 8.4; 2H)	7.47, 7.26, 2.29		H-5/5’, 8″
7.33 (m; 1H)	7.26		H-5’/5
7.26 (d, J = 8.1; 2H)	7.40, 7.38, 7.33		H-7, 7’
7.22 (s; 1H)	7.47, 2.29		H-5″
7.05 (d, J = 8.2; 2H)	7.01, 6.15		H-o
7.01 (d, J = 8.2; 2H)	7.05		H-m
6.81 (s; 1H)	12.20		H-3″
6.15 (bs; 1H)	7.05		H-a
5.27 (s; 2H)			H-b
3.82 (s; 6H)			H-6b, 6b’
2.29 (s; 3H)	7.40, 7.38, 7.26		H-6a″
13C NMR	HSQC	HMBC	Assignment
165.85, 164.13		6.15	C-2, 2’
161.84			C-4, 4’
160.84			C-2″, 4″
156.06		7.05, 5.27	C-p
154.81		7.40, 3.82	C-6, 6’
143.42		8.84, 7.40, 7.22, 6.81, 5.27	C-c
137.50		7.47, 7.22	C-8a″
133.15	7.47	7.47, 7.22	C-7″
131.73, 131.51		7.38, 7.26, 2.29	C-8a, 8a’
130.07			C-i
127.40	7.05		C-o, 6″
126.50	8.84	8.84,3 7.01, 5.27	C-d
123.15	7.22	7.47, 7.05, 2.29	C-5″
120.82	7.26	7.01	C-7, 7’
117.69	6.81	7.05, 6.813	C-3″
117.45	7.40	7.403	C-8, 8’
116.69	7.38, 7.33		C-4a, 4a’
115.89	7.38		C-8″
114.38	7.01	7.38, 6.81	C-m, 4a″
111.86, 110.18		6.15	C-3, 3’
103.81	7.38, 7.33		C-5, 5’
60.85	5.27		C-b
55.40	3.82	3.823	C-6b, 6b’
34.71	6.15		C-a
20.50	2.29	7.47, 7.22, 2.293	C-6a″
15N NMR	HSQC	HMBC	Assignment
247.4		8.84, 6.81	N-e
151.6	12.20	7.38, 6.81	N-1″
144.2	12.09		N-1’/1
142.	12.20		N-1/1‘
N-f, g n/o.