Synthesis and pharmacological activity of angiotensin-converting enzyme inhibitors: N-(mercaptoacyl)-4-substituted-(S)-prolines
摘要:
The synthesis of a series of N-(mercaptoacyl)-4-substituted-(S)-prolines (2 and 3) is described. These compounds were evaluated in vitro for inhibition of angiotensin-converting enzyme (ACE), and selected compounds were evaluated in vivo for ACE inhibition. The most potent compounds in vitro are 108, 109, 111, 114, and 116, having relative potencies of 1.0, 1.0, 1.3, 1.1, and 2.6 as compared to the potency of captopril. The most potent compounds in vivo intravenously are 108, 111, 114, 116, 117, and 97.
Mechanism of proton transfer to coordinated thiolates: encapsulation of acid stabilizes precursor intermediate
作者:Ahmed Alwaaly、William Clegg、Ross W. Harrington、Athinoula L. Petrou、Richard A. Henderson
DOI:10.1039/c5dt01716e
日期:——
Hydrogen bonded intermediate in protonation of [Ni(thiolate)(triphos)]+ by 2,6-lutidinium is stabilized by encapsulation of the acid by phenyl groups of triphos.
α,β-Epoxy Sulfoxides as Useful Intermediates in Organic Synthesis. II. A Novel Synthesis of α-Sulfenylated Ketones and α-Sulfenylated Aldehydes from α,β-Epoxy Sulfoxides
作者:Tsuyoshi Satoh、Takumi Kumagawa、Koji Yamakawa
DOI:10.1246/bcsj.58.2849
日期:1985.10
Treatment of α,β-epoxy sulfoxides, prepared from 1-chloroalkyl phenyl sulfoxides and carbonyl compounds, with various kinds of alkane- or arenethiolates afforded α-sulfenylated ketones in good yields. This method also offered a novel procedure for a synthesis of α-sulfenylated aldehydes.
Chemoselective Activation of Diethyl Phosphonates: Modular Synthesis of Biologically Relevant Phosphonylated Scaffolds
作者:Pauline Adler、Amandine Pons、Jing Li、Jörg Heider、Bogdan R. Brutiu、Nuno Maulide
DOI:10.1002/anie.201806343
日期:2018.10
Phosphonates have garnered considerable attention for years owing to both their singular biological properties and their synthetic potential. State‐of‐the‐art methods for the preparation of mixed phosphonates, phosphonamidates, phosphonothioates, and phosphinates rely on harsh and poorly selective reaction conditions. We report herein a mild method for the modular preparation of phosphonylated derivatives
Phosphorus–nitrogen compounds. Part XXI. Alkylthio- and phenylthio-cyclotriphosphazatrienes
作者:A. P. Carroll、R. A. Shaw
DOI:10.1039/j19660000914
日期:——
representative series of alkylthio (or phenylthio)cyclotriphosphazatrienes, N3P3Cl6–n(SR)n, have been prepared and characterised. Very much more pronounced than in alcoholysis or aminolysis, the degree of chlorine replacement in alkanethiolysis is markedly dependent on the reaction conditions. With the alkanethiolates (R = Alk) bis-, tetrakis-, and hexakis-alkylthio-derivatives (n= 2, 4, or 6) are the
借助于链烷硫醇钠(或苯硫醇钠),已制备并表征了一系列代表性的烷硫基(或苯硫基)环三磷氮杂环丁烷N 3 P 3 Cl 6– n(SR)n。比在醇解或氨解中明显得多,烷硫醇解中氯的取代程度明显取决于反应条件。对于链烷硫醇盐(R =烷基),主要的反应产物是双-,四-和六-烷基硫代衍生物(n = 2、4或6)。少量的三烷硫基衍生物(n= 3)也被观察到。用苯硫代硫酸钠(R = Ph),不同取代度之间的反应性差异不太明显,仅获得了双和六烷基衍生物(n = 2或6)。与相应的六烷氧基衍生物N 3 P 3(OAlk)6相比,六烷基硫代环三磷氮杂烯酮N 3 P 3(SAlk)6不能重排为异构的环三磷氮烷。讨论了烷硫基(或苯硫基)磷腈的结构,以及影响氯取代程度的因素以及烷硫基分解(苯硫基分解)的机理。
2-[(Phenylthio)methyl]pyridine derivatives: new antiinflammatory agents
作者:Fortuna Haviv、Robert W. DeNet、Raymond J. Michaels、James D. Ratajczyk、George W. Carter、Patrick R. Young
DOI:10.1021/jm00356a018
日期:1983.2
2-[(Phenylthio)methyl]pyridine derivatives inhibited the dermal reverse passive Arthus reaction (RPAR) in the rat. In the same model, indomethacin was inactive, and hydrocortisone was active. Compounds Ia-d also significantly reduced exudate volume and white blood cell accumulation in the pleural RPAR. This pattern of activity was similar to that of hydrocortisone and different from that of indomethacin