For this reason, an alternative to obtain the prenylated xanthone is through
microwave-assisted organic synthesis (MAOS). This alternative method
not only can accelerate organic reactions and reduce the amount of
chemical used, but it also can improve yields and selectivity. In this
MAOS, there is incorporated microwave (MW) to improve yield of oxyprenylated xanthone instead of conventional heating (Figure 2.15)
(Castanheiro et al., 2009).