An Aryne-Based Route to Substituted Benzoisothiazoles
作者:Yiding Chen、Michael C. Willis
DOI:10.1021/acs.orglett.5b02347
日期:2015.10.2
The combination of arynes, generated using fluoride from the corresponding 2-(trimethylsilyl)aryl triflates, and 3-hydroxy-4-aminothiadiazoles leads to the selective formation of 3-amino-substituted benzo[d]isothiazoles. Variation of the substitution pattern of the aryne precursor, and of the thiadiazole, is possible, with the target heterocycles being obtained in good to excellent yields. In all cases
使用由相应的2-(三甲基甲硅烷基)芳基三氟甲磺酸酯氟化物生成的芳烃与3-羟基-4-氨基噻二唑的组合导致选择性地形成3-氨基取代的苯并[ d ]异噻唑。可以改变芳烃前体和噻二唑的取代方式,并以高至优异的产率获得目标杂环。在所有情况下,使用3-羟基-4-氨基噻二唑都会在产物杂环中引入氨基取代基。
Thiadiazole Carbamates: Potent Inhibitors of Lysosomal Acid Lipase and Potential Niemann−Pick Type C Disease Therapeutics
作者:Anton I. Rosenbaum、Casey C. Cosner、Christopher J. Mariani、Frederick R. Maxfield、Olaf Wiest、Paul Helquist
DOI:10.1021/jm100499s
日期:2010.7.22
4-disubstituted thiadiazole carbamates. An efficientsynthesis of the C(3) oxygenated/C(4) aminated analogues has been developed that furnishes the products in high yields and high degrees of purity. Common intermediates can also be used for the synthesis of the C(3) carbon substituted derivatives. Herein we tested various thiadiazole carbamates, amides, esters, and ketones for inhibition of LAL. In addition