Abstract
Tryptanthrin is a golden-yellow, naturally occurring alkaloid that can be obtained
from multiple sources and through different synthetic methodologies. This tetracyclic
compound displays several relevant biological activities. The potential of this tetracyclic
alkaloid has been widely explored, and several researchers have focused their attention
on expanding the variety of tryptanthrin derivatives by using a range of synthetic
strategies. In this short review, we aim to address recent developments in the synthesis
of the tryptanthrin core, as well as the development of new strategies employed by
synthetic organic chemists to obtain novel tryptanthrin derivatives with potential
biological activity, using different tools from the chemists’ toolbox, such as photocatalysis,
solvent-free approaches, and multicomponent reactions.
Key words
tryptanthrin - indoloquinazoline derivatives - bioactive compounds - drug design