Byakangelicin
C18H20O7, 348.00
IR
(KBr) 1728, 1617, 1479, 1143
MASS
FABMS m/z 349 [M + H]+
1H NMR
(300 MHz, CDCL3) δ : 1.26 (3H, s, H-4"), 1.29 (3H, s, H-5"), 3.81 (1H, m, H-2"), 4.16 (OCH3), 4.23 (1H, dd, J = 7.9, 10.1 Hz, H-1b"), 4.57 (1H, dd, J= 2.7, 10.1 Hz, H-1a"), 6.27 (1H, d, J = 9.7 Hz, H-3), 6.99 (1H, d, J = 2.4 Hz, H-3'), 7.61 (1H, d, J = 2.4 Hz, H-4'), 8.10 (1H, d, J = 9.7 Hz, H-4) |
13 C NMR
(75 MHz, CDCL3)
δ : 24.99 (C-4"),
26.62 (C-5"),
60.61 (OCH3),
71.50 (C-3"),
75.91 (C-2"),
76.04 (C-1"),
105.34 (C-3'),
107.32 (C-10),
112.70 (C-3),
114.39 (C-6),
126.67 (C-8),
139.58 (C-4),
143.77 (C-9),
144.80 (C-5),
145.21 (C-2'),
150.09 (C-7),
160.33 (C-2)