On Topological Descriptors of Polycyclic Aromatic Benzenoid Systems

A Facile Ugi/Ullmann Cascade Reaction to Access Fused Indazolo-Quinoxaline Derivatives with Potent Anticancer Activity

“…Fused nitrogen polycyclic aromatic systems are one of the privileged core skeletons that are of great significance in biochemistry and the pharmaceutical industry [ 1 , 2 , 3 , 4 ]. Indazole and quinoxalinone cores, as two of them, are not only key scaffolds of many natural products but also essential units of a number of synthetic compounds possessing a wide spectrum of pharmaceutical activities [ 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ].…”

On Degree-Based Topological Indices of Carbon Nanocones

“…We provide the ve-degree- and ev-degree-based topological indices for the molecular structure of the carbon nanocone CNC r [ s ]. Topological indices or variants based on ve-degree and ev-degree are currently the subject of a lot of research (see refs − for a more extensive explanation of these topological indices of several graphs and molecular structures). In this work, the second ve-degree Zagreb β-index ( M 2,ve β ), ve-degree Randic index ( R ve ), ev-degree Randic index (R ev ), ev-degree Zagreb index (M ev ), the first ve-degree Zagreb α-index ( M 1,ve α ), the first ve-degree Zagreb β-index ( M 1,ve β ), ve-degree atom–bond connectivity index (ABC ve ), ve-degree sum connectivity index (χ ve ), ve-degree harmonic index ( H ve ), and ve-degree geometric–arithmetic index (GA ve ) are examined for the molecular structure of carbon nanocone CNC r [ s ].…”