CAS Registry Number: 156162-03-7 Open image in new window
Taxonomy: Physicochemical and Pharmacological Properties of Flavonoids – Isoflavanones
Biological sources: Glycyrrhiza aspera [1]
C22H24O6: 384.4330
Mp: 159–162°C, amorphous powder
[α]D−32° (c 0.02, MeOH)
UV: 287 (4.50), 335sh (3.72)
EI-MS: 385 [M + 1] + (10), 384[M]+ (38), 366 (5), 351 (5), 329 (10), 328 (14), 235 (47), 234 (14), 179 (100), 150 (27) [1]
HR-MS: 384.1544 [M] + (C22H24O6 requires: 384.1573)
1H NMR (400 MHz, acetone-d6): 1.63 (H, br d, J = 1, Me), 1,74 (3H, br s, Me), 3.23 (2H, br d, J = 7, H-9), 3.74, 3.91 (6H, s, OMe), 4.31 (1H, dd, J = 5, 11, H-3), 4.49 (1H, dd, J = 5, 11, H-2), 4.65 (1H, t, J = 11, H-2), 5.18 (1H, br t, J = 7, H-10), 6.14 (1H, s, H-8), 6.44 (1H, dd, J = 2, 8, H-5′), 6.50 (1H, d, J = 2, H-3′), 7.05 (1H, d, J = 8, H-6′), 8.71 (1H, br s, OH), 12.46 (1H, s, 5-OH) [1]
Table 1
C-2 |
71.1 |
8 |
91.6 |
C-1′ |
115.1 |
4a |
104.0 |
3 |
47.5 |
9 |
21.60 |
2′ |
157.0 |
8a |
161.4 |
4 |
198.8 |
10 |
123.5 |
3′ |
102.7 |
References
- 1.T. Fukai, L. Zheng, J. Nishizowa, Y.H. Wang, T. Nomura, Phytochemistry 36, 233 (1994). CA 121, 53955 (1994)Google Scholar
- 2.T. Fukai, B. Cai, K. Maruno, Y. Miyakawa, M. Konishi, T. Nomura, Phytochemistry 49, 2005–2013 (1998)CrossRefGoogle Scholar