Synthesis of Succinimido[3,4-b]indane and 1,2,3,4,5,6-Hexahydro-1,5-methano-3-benzazocine-2,4-dione by Sequential Alkylation and Intramolecular Arylation of Enolates Derived from <i>N,N,N</i><i>‘</i><i>N</i>‘-Tetramethylbutanediamides and <i>N,N,N</i><i>‘</i><i>N</i>‘-Tetramethylpentanediamides
作者:Sushama A. Dandekar、Stacey N. Greenwood、Thomas D. Greenwood、Stéphane Mabic、Joseph S. Merola、James M. Tanko、James F. Wolfe
DOI:10.1021/jo982000b
日期:1999.3.1
refluxing THF. Treatment of 20 with KNH(2) in liquid NH(3) led to intramolecular arylation and accompanying ammonolysis to afford trans-1-(N,N-dimethylcarboxamido)-1,2,3,4-tetrahydronaphthalene-3-carboxamide (21b). Conversion of 21b to 5 was similarly effected by means of NaH. Experiments designed to test the mechanistic aspects of the intramolecular arylations provided evidence for competing aryne and SET
Hofmann-Type Rearrangement of Imides by in Situ Generation of Imide-Hypervalent Iodines(III) from Iodoarenes
作者:Katsuhiko Moriyama、Kazuma Ishida、Hideo Togo
DOI:10.1021/ol300028j
日期:2012.2.3
The Hofmann-type rearrangement of aromatic and aliphatic imides using a hypervalent iodine(III) reagent generated in situ from PhI, m-CPBA, and TsOH·H2O proceeded in the presence of a base in alcohol to provide anthranilic acid derivatives and amino acid derivatives in high yields, respectively. This reaction proceeds through a tandem reaction via alcoholysis followed by a Hofmann rearrangement promoted
Effect of catalytic alkali metal bromide on Hofmann-type rearrangement of imides
作者:Katsuhiko Moriyama、Kazuma Ishida、Hideo Togo
DOI:10.1039/c2cc33914e
日期:——
The Hofmann-type rearrangement of aromatic and aliphatic imides using KBr as the catalyst proceeded to provide aromatic and aliphatic amino acid derivatives. We have also developed a new synthetic route to gabapentin with this method.
Lead Optimization of Phthalazinone Phosphodiesterase Inhibitors as Novel Antitrypanosomal Compounds
作者:Irene G. Salado、Abhimanyu K. Singh、Carlos Moreno-Cinos、Guna Sakaine、Marco Siderius、Pieter Van der Veken、An Matheeussen、Tiffany van der Meer、Payman Sadek、Sheraz Gul、Louis Maes、Geert-Jan Sterk、Rob Leurs、David Brown、Koen Augustyns
DOI:10.1021/acs.jmedchem.9b00985
日期:2020.4.9
Human Africantrypanosomiasis is causing thousands of deaths every year in the rural areas of Africa. In this manuscript we describe the optimization of a family of phtalazinone derivatives. Phosphodiesterases have emerged as attractive molecular targets for a novel treatment for a variety of neglected parasitic diseases. Compound 1 resulted in being a potent TbrPDEB1 inhibitor with interesting activity