The nitration of some 4,6-dimethoxyindoles

Indole-based allosteric inhibitors of HIV-1 integrase

Employing a scaffold hopping approach, a series of allosteric HIV-1 integrase (IN) inhibitors (ALLINIs) have been synthesized based on an indole scaffold. These compounds incorporate the key elements utilized in quinoline-based ALLINIs for binding to the IN dimer interface at the principal LEDGF/p75 binding pocket. The most potent of these compounds displayed good activity in the LEDGF/p75 dependent integration assay (IC50=4.5μM) and, as predicted based on the geometry of the five- versus six-membered ring, retained activity against the A128T IN mutant that confers resistance to many quinoline-based ALLINIs.

Some acid-catalysed reactions of indol-3-yl and indol-2-yl disubstituted methanols

1-Substituted indol-3-yl and indol-2-yl disubstituted methanols do not undergo acid-catalysed trimerisation to yield indolocyclotriveratrylenes, unlike the related primary 1-substituted indol-3-yl- and -2-ylmethanols. The 1-substituted indol-3-ylmethanols 10 and 11 gave diindol-3-ylmethanes 12 and 13, respectively, on treatment with p-toluenesulfonic acid in dichloromethane. In contrast, the indol-2-ylmethanols 22 and 23 gave the reduced indolo[3,2-b]carbazoles 24 and 25, respectively, on treatment with boron trifluoride etherate in benzene. An X-ray crystal structure of compound 24 is described.

Hydroxyl-directed dinitration of carboxylate ligands mediated by lead and nickel nitrates and preparation of Pb/Ni heterometallic complexes under hydrothermal conditions

The hydrothermal reaction of 5-hydroxyisophthalic acid (H3L) and lead and nickel nitrates produced a heterometallic polymer [Pb6Ni(mu3-OH)8(La)2]n containing heptanuclear [Pb6Ni(mu3-OH)8]6+ units and a homometallic complex {[Pb(Lb)(H2O)].(H2O)0.25}n consisting of one-dimensional lead-oxide chains: evidently, the La and Lb ligands resulted from in situ hydroxyl-directed dinitration of L ligand during the hydrothermal reaction.