New calcium antagonists: synthesis, X-ray analysis, and smooth muscle relaxing effect of 3-[ O -(Benzyl-substituted)-oximino-ethers]-hexahydroazepin-2,3-diones
作者:Hayat El From、Marie-Hélène Péra、Gérard Leclerc、Duc Tranqui、Emmanuelle Corompt、Germain Bessard、Philippe Devillier
DOI:10.1016/s0968-0896(99)00090-5
日期:1999.8
trachea and human bronchus. This derivative acts mainly by inhibiting cellular influx of extracellular calcium since it inhibits potently and dose-dependently the contractions of rat trachea to high concentrations of KCI and to CaCl2 in a depolarizing medium. It appears to act weakly by inducing cGMP and cAMP synthesis. Moreover, its relaxing activity is not related to an inhibition of phosphodiesterases
Synthesis and thermal decomposition of N,N-dialkoxyamides
作者:Katherine M. Digianantonio、Stephen A. Glover、Jennifer P. Johns、Adam A. Rosser
DOI:10.1039/c1ob00008j
日期:——
esters using phenyliodine(III)bis(trifluoroacetate) (PIFA). Infrared carbonyl stretch frequencies and carbonyl 13C NMR properties have been reported, which support strong inhibition of amide resonance in these amides. Their thermal decomposition reactions in mesitylene at 155 °C proceed by homolysis to form alkoxyamidyl and alkoxyl free radicals in preference to HERON rearrangements to esters. The reactions
N,N-二烷氧基酰胺1c(实际上是尚未被研究的新型异头酰胺,即在氮原子上带有两个负电性酰胺的酰胺)的直接合成物,是使用苯基碘(III)双(三氟乙酸)酯(PIFA)由异羟肟酸酯直接以有用的产率合成的。据报道,红外羰基的拉伸频率和羰基的13 C NMR特性支持强烈抑制这些酰胺中的酰胺共振。它们的热分解反应均三甲苯在155℃下,通过均相分解形成烷氧基ami基和烷氧基自由基,而不是将HERON重排成酯。该反应遵循一级动力学,对于一系列N,N-二甲氧基-4-取代的苯甲酰胺,已确定了125-135 kJ mol -1的活化能以及弱的负熵活化。
Bonin, Antonio M.; Glover, Stephen A.; Hammond, Gerard P., Journal of the Chemical Society. Perkin transactions II, 1994, # 6, p. 1173 - 1180
作者:Bonin, Antonio M.、Glover, Stephen A.、Hammond, Gerard P.
DOI:——
日期:——
45. Amino-oxy-derivatives. Part II. Some derivatives of N-hydroxydiguanide
作者:P. Mamalis、J. Green、D. Mchale
DOI:10.1039/jr9600000229
日期:——
Brady; Klein, Journal of the Chemical Society, 1927, p. 882