We are interested in the structures of xanthones derivatives which are isolated from
the fruit hulls of Garcinia mangostana L., α-mangostin, γ-mangostin, and garcinone D (Figure 1).
The structures of these compounds have been examined experimentally using 1
H and 13C NMR
techniques [1]. In this work we are interested in computing the chemical shifts of α-mangostin,
γ-mangostin and garcinone D. The predicted 1
H and 13C chemical shifts of α-mangostin,
γ-mangostin and garcinone D were examined theoretically using WP04, WC04 and B3LYP
methods and will be compared with the available experimental data.