Crystal Structure of Guidongnin A

Id2216797
Common nameGuidongnin A
Chemical name(3aR,4R,4'aS,5'R,7'S,7aR,9'R,9'aS)-5',9'-dihydroxy-7a-methyl-8'- methyleneperhydrospiro[isobenzofuran-4(1H),4'(3'H)- [1H-7,9a]methanocyclohepta[c]pyran]-1',3(3aH)-dione
a (Å)12.2614(15)
b (Å)15.6668(18)
c (Å)18.697(2)
α (°)90.00
β (°)90.00
γ (°)90.00
V (Å3)3591.6(7)
Space groupP 21 21 21
Temperature (K)298(2)
Rint0.0776
Authors: Shi, Hao
Publication: Acta Crystallographica Section E (2007) 63, 12 o4890-o4890