O. Cuesta-rubio et al., Aristophenones A and B. A new tautomeric pair of polyisoprenylated benzophenones from Garcinia aristata, J NAT PROD, 64(7), 2001, pp. 973-975
A tautomeric pair of new isoprenylated benzophenones, aristophenone A (1a)
and B (1b), have been isolated from Garcinia aristata fruits. Their structu
res has been determined using high-field 2D NMR techniques.