Synthesis and Antiviral Bioactivities of 2-Cyano-3-substituted-amino(phenyl) Methylphosphonylacrylates (Acrylamides) Containing Alkoxyethyl Moieties
摘要:
An efficient reaction under microwave irradiation has been developed for the synthesis of a series of novel 2-cyano-3-substituted-amino(phenyl) methylphosphonylacrylates (acrylamides) II. The products obtained in shorter reaction time with moderate yields are fully characterized by elemental analysis, IR, H-1, C-13, and P-31 NMR spectral data. The role of introducing various substituents and the effect of incorporating alpha-aminophosphonates with an alkoxyethyl moiety into the parent cyanoacrylate (acrylamide) structure are investigated. Among the studied compounds, both II-17 and II-24 displayed good in vivo curative, protection, and inactivation effects, which were comparable to those of the commercial reference ningnanmycin (inhibitory rates of 58.8, 60.2, 78.9% and 60.0, 58.9, 85.5%, respectively, at 500 mg/L against TMV). To the best of the authors' knowledge, this is the first report on the synthesis and antiviral activity of the title compounds II.
Synthesis and insecticidal activities of novel neonicotinoid analogs bearing an amide moiety
作者:Jian Wu、Song Yang、Bao-An Song、Pinaki S. Bhadury、De-Yu Hu、Song Zeng、Hua-Peng Xie
DOI:10.1002/jhet.663
日期:2011.7
A series of novelneonicotinoidanalogs containing an amidemoiety were synthesized, characterized, and subsequently evaluated for their insecticidalactivity. According to the preliminary bioassay, the compounds 6c, 6e, 6f, 6j, 6n, and 6r exhibited > 50% activity against Nilaparvata lugens at 100 mg/L. Amongst the active compounds, 6f and 6r revealed insecticidalactivities similar to that displayed
αα′-Dicyano-(1,3-dithiacyclobutane-2,4-diylidene)diacetamides (desaurins) from thiazine derivatives
作者:Masataka Yokoyama
DOI:10.1039/p19750001417
日期:——
The title compounds (1) were synthesized in good yields by refluxing N-alkyl-2-cyano-3-mercapto-3-methylthio-acrylamides (3) with acetic anhydride. Compounds (3) were prepared by a novel hydrogenolysis of 2,2-disubstituted 3,4-dihydro-6-methylthio-4-oxo-2H-1,3-thiazine-5-carbonitriles (2) with lithium aluminium hydride or sodium borohydride.
通过使N-烷基-2-氰基-3-巯基-3-甲硫基丙烯酰胺(3)与乙酸酐回流,以高收率合成标题化合物(1)。化合物(3)是通过将2,2-二取代的3,4-二氢-6-甲硫基-4-氧代-2 H -1,3-噻嗪-5-腈(2)与氢化铝锂进行新型氢解反应制得的硼氢化钠。
Synthesis and Antiviral Activities of Cyanoacrylate Derivatives Containing an α-Aminophosphonate Moiety
Target compounds 8 were obtained by the reaction of alkyl 2-cyano-3,3-dimethylthioacrylate or cyarylamide (7a-7e) and (alpha-aminobenzylphosphonate (5a-5e) under reflux condition using ethanol as solvent. Their structures were clearly verified by spectroscopic data (IR and (1)H, (13)C, and (31)P NMR) and elemental analysis. These compounds were shown to be antivirally active in the bioassay. It was found that title compounds 8d and 8e had the same inactivation effect against tobacco mosaic virus (EC(50) = 55.5 and 55.3 mu g/mL) as the commercial product ningnanmycin (EC(50) = 50.9 mu g/mL). To the best of our knowledge, this is the first report on the synthesis and antiviral activity of cyanoacrylate derivatives containing an alpha-aminophosphonate moiety.
YOKOYAMA M., J. CHEM. SOC. PERKIN TRANS. PART I <JCPK-BH>, 1975, NO 14, 1417-1418