ABSTRACT
C34H30O7 550.607 Constit. of the bark of Cryptocarya obovata. Cytotoxic to KB cells. Yellow powder. [a]25D -52.7 (c, 1.2 in CHCl3). lmax 203 (e 62280); 248 (e 22820); 348 (e 19600) (EtOH). Dumontet, V. et al., J. Nat. Prod., 2004, 67,
858-862 (Obochalcolactone, struct, activity)
[712272-91-8]
O O O
Ph
EtOOC OH O
Relative Configuration
C34H34O7 554.638 Constit. of the fruit and trunk bark of Cryptocarya obovata. Powder. [a]25D-64.7 (c, 0.9 in CHCl3). Possible artifact. lmax 205 (e 46810); 209 (e 45960); 230 (e 23505); 247 (e 18572); 293 (e 46815) (EtOH). 2-Epimer: [712272-92-9] Oboflavanone B
C34H34O7 554.638 Constit. of the fruit and trunk bark of Cryptocarya obovata. Powder. [a]25D -57.9 (c, 0.9 in CHCl3). lmax 205 (e 42160); 230 (e 21130); 247 (e 16802); 293 (e 21200) (EtOH).
