The present study describes the synthesis of 6-bromo-2-(pyridin-3-yl)-4-substituted
quinazolines starting from 4-chloro derivative VI via the reaction with either phenolic …

Tryptanthrin is a golden-yellow, naturally occurring alkaloid that can be obtained from
multiple sources and through different synthetic methodologies. This tetracyclic compound …

Tryptanthrin is one of the well-known natural alkaloids with the broader spectrum of
biological activities as anti-inflammatory, anticancer, antibacterial, antifungal, antiviral …

A variety of novel tryptanthrin aminothiazole analogues 3a‐h and 5a‐h possessing a
biologically active thiazole moiety were synthesized by the reaction of tryptanthrin …

A new and highly efficient visible-light-promoted catalyst free (VLCF) strategy for neat and
clean synthesis of spiro indolo-quinazolinone-pyrrolo [3, 4-a] pyrrolizine hybrids (6a–d) has …

A convenient method for the synthesis of functionalized spiroindolo [2, 1-b] quinazoline-6,
2′-[1, 3, 4] oxadiazoles from indolo [2, 1-b] quinazoline-6, 12-diones and 13 hydrazonoyl …

An efficient green chemical approach has been reported to synthesize tryptanthrin alkaloids,
utilizing isatin and isatoic anhydride as a substrate in the presence of tetrabutylammonium …

Chalcones, as a large group of organic compounds, are widely implemented in various
types of anti-cancer therapeutics. These plant metabolites are present in fruits, vegetables …

Indolo [2, 1-b] quinazolin-6, 12-dione (tryptanthrin) derivatives present important types of
nitrogen-containing heterocyclic compounds which are useful intermediate products in …

The Re (I) organometallic compounds [(Re (CO) 3L1–6) Cl], where ligands L are tryptanthrin
derivatives, prepared and characterized by various spectroscopic techniques. To assess the …