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Showing posts with label Byakangelicin. Show all posts
Showing posts with label Byakangelicin. Show all posts

Sunday 21 September 2014

Byakangelicin



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)