Phytochemical Investigation of Egyptian Riverhemp: A Potential Source of Antileukemic Metabolites

Table 1

NMR data for compound (33) (500 MHz in DMSO-d₆).

Position	δ C, type	δ H (J in Hz)	HMBC	TOCSY
1	38.4, CH2	0.82		2, 3
2	25.5, CH2	1.59, 1.68		3
3	80.4, CH	3.50	1′	1
4	42.8, C
5	46.4, CH	1.17	6
6	17.6, CH2	1.39
7	32.7, CH2	1.50
8	39.2, C
9	41.3, CH	2.77
10	36.4, C
11	23.3, CH2	1.80, 1.88		12
12	121.7, CH	5.76		11, 18
13	144.6, C
14	41.8, C
15	27.7, CH2	0.97, 1.61	27
16	22.5, CH2	1.41		15
17	45.9, C	-
18	47.5, CH	1.51
19	46.3, CH2	1.59	12, 29, 30	28
20	30.9, C	-
21	33.9, CH2	1.41		28
22	32.4, CH2	1.44		28
23	13.3, CH3	0.59	3, 4, 5, 24
24	62.8, CH2	3.07, 3.44 (d, J = 10.5 Hz)	3
25	16.0, CH3	0.87	10, 11	9
26	17.4, CH3	0.71	8, 14
27	26.0, CH3	1.09	8, 13, 14, 15
28	70.2, CH2	3.51 (S)	16, 18	18
29	23.9, CH3	0.87	20, 30
30	33.3, CH3	0.86	18, 20
1′	105.1, CH	4.33 (d, J = 8 Hz)	3	2′, 3′, 4′, 5′
2′	74.1, CH	2.98 (t, J = 8.5 Hz)	1′, 5′	1′, 4′
3′	75.9, CH	3.16 (t, J = 9 Hz)	4′	1′, 2′, 5′
4′	72.1, CH	3.28 (t, J = 9.5 Hz)	2′	1′, 2′, 5′
5′	76.4, CH	3.65	1′	1′, 2′, 3′
6′	170.1, C
7′	52.3, CH3	3.67 (s)	6′	2′, 3′, 4′