Crystal Structure of An unnaturally cage xanthone from <i>Cratoxylum cochinchinese</i>

Id2207092
Common nameAn unnaturally cage xanthone from <i>Cratoxylum cochinchinese</i>
Chemical name8-hydroxy-13-methoxy-17,17-dimethyl-15-(3-methyl-2-butenyl)-3,16- dioxapentacyclo[11.4.1.0^2,11^.0^2,15^.0^4,9^]octadeca-4,6,8,11- tetraene-10-14-dione
a (Å)11.4622(4)
b (Å)7.3284(2)
c (Å)26.7829(9)
α (°)90.00
β (°)109.709(2)
γ (°)90.00
V (Å3)2117.96(12)
Space groupP 1 21/c 1
Temperature (K)273(2)
Rint0.0627
Publication: Acta Crystallographica Section E (2005) 61, 10 o3505-o3507