Table 2.

¹H and ¹³C NMR (DMSO, 300.13 MHz and 75.47 MHz) and HMBC assignment for 2.

Position	δC, Type	δH, (J in Hz)	COSY	HMBC
2	127.3, CH	7.15, s		C-3, 8, 9
3	108.0, C	-
4	118.4, CH	7.54, d (7.8)	H-5	C-3, 6, 8
5	119.2, CH	7.08, ddd (7.8, 7.8, 0.7)	H-4, 6	C-7, 9
6	121.7, CH	7.20, ddd (7.8, 7.8, 0.7)	H-5, 7	C-4, 8
7	109.9, CH	7.31, d (7.8)	H-6	C-5, 9
8	136.3, C	-
9	127.9, C	-
10	22.4, CH2	3.57, dd (15.2, 5.5)	H-11	C-2, 3, 17
		3.26, dd (15.2, 8.3)	H-11	C-2, 3, 17
11	52.4, CH	4.12, dt (8.3, 5.5)	H-10, NH-12
13	168.9, CO	-
14	125.5, C	-
15	135.7, C	-
17	172.0, CO
18	121.0, CH	7.06, d (8.0)	H-19	C-14, 20
19	133.1, CH	7.50, ddd (8.0, 8.0, 1.5)	H-18, 20	C-15, 21
20	125.2, CH	7.24, dd (8.0, 8.0)	H-19, 21	C-14, 18
21	131.4, CH	7.91, dd (8.0, 1.5)	H-20	C-13, 19, 15
1′	44.2, CH2	4.63, d (6.8)	H-2′	C-2, 2′, 3′
2′	119.9, CH	5.35, m	H-1′, 4′, 5′
3′	136.4, C	-
4′	25.6, CH3	1.74, s	H-1′, 2′	C-2′, 3′, 5′
5′	18.1, CH3	1.80, s	H-1′, 2′	C-2′, 3′, 5′
NH-12		7.03, d (5.5)	H-11
NH-16		9.03, s		C-11, 14