Anticonvulsant O-alkyl sulfamates. 2,3:4,5-Bis-O-(1-methylethylidene)-.beta.-D-fructopyranose sulfamate and related compounds
作者:Bruce E. Maryanoff、Samuel O. Nortey、Joseph F. Gardocki、Richard P. Shank、Susanna P. Dodgson
DOI:10.1021/jm00388a023
日期:1987.5
Novel sugar sulfamate 1 (McN-4853, topiramate) has been found to exhibit potent anticonvulsant activity analogous to that of phenytoin. In the maximal electroshock seizure test, orally at 2 h in mice, 1 had an ED50 of 39 mg/kg. Orally, 1 had a duration of action in excess of 8 h. Other aspects of the pharmacology of 1, as well as neurochemistry and carbonic anhydrase inhibition, are discussed. The
A sulfamate compound corresponding to Formula I
wherein R1 to R3 and n have defined meanings, pharmaceutical compositions comprising these compounds; a process for preparing these compounds, and the use of such compounds or compositions to treat or inhibit various disorders or disease states in patients in need thereof by administering to such a patient a therapeutically effective amount of such a compound.
Iron-Catalyzed Intramolecular Amination of Aliphatic C–H Bonds of Sulfamate Esters with High Reactivity and Chemoselectivity
作者:Wei Liu、Dayou Zhong、Cheng-Long Yu、Yan Zhang、Di Wu、Ya-Lan Feng、Hengjiang Cong、Xiuqiang Lu、Wen-Bo Liu
DOI:10.1021/acs.orglett.9b00660
日期:2019.4.19
It is challenging to develop simple and low cost catalytic systems while maintaining high reactivity and selectivity. An iron-catalyzed intramolecular C–H amination of sulfamate esters using simple and cheap ligands is reported with general substrate scope (31 examples, up to 95% yield). The addition of second ligand, bipyridine, is able to accelerate the reaction and increase the yield. The ready
Intramolecular C-H Amination Reaction Provides Direct Access to 1,2-Disubstituted Diamondoids
作者:Radim Hrdina、Fabian M. Metz、Marta Larrosa、Jan-Philipp Berndt、Yevgeniya Y. Zhygadlo、Sabine Becker、Jonathan Becker
DOI:10.1002/ejoc.201500691
日期:2015.10
present a new approach to disubstituted diamondoids from corresponding carboxylic acids. A dirhodium-acetate-catalyzed (1 mol-%) nitrene insertion reaction of sulfamides was, for the first time, applied to intramolecular C–H functionalization reactions of rigid tricyclic frameworks. This straightforward approach enables the effective and regioselective synthesis of a variety of diamondoid-based cyclic