New 12-N-β-Hydroxyethylcytisine Derivatives with Potential Antiarrhythmic Activity
作者:I. P. Tsypysheva、A. V. Koval’skaya、I. U. Khalilova、Yu. Yu. Bakhtina、R. Yu. Khisamutdinova、S. F. Gabdrakhmanova、A. N. Lobov、F. S. Zarudii、M. S. Yunusov
DOI:10.1007/s10600-014-0945-5
日期:2014.5
12-N-β-Hydroxyethylcytisine derivatives containing Cl, Br, and nitro groups on the 2-pyridone core were synthesized. Their antiarrhythmic activity was studied in vivo.
Insecticidal activity of twin compounds from podophyllotoxin and cytisine
作者:Yuanyuan Zhang、Min Lv、Hui Xu
DOI:10.1016/j.bmcl.2021.128104
日期:2021.7
twin compounds were prepared from two natural products podophyllotoxin and cytisine, which are isolated from the plants Podophyllum hexandrum and Thermopsis lanceolata, respectively. Compounds IIa (X = Cl, Y = R1 = R2 = H), IIIc (X = Y = R1 = R2 = Cl) and IVd (X = R1 = R2 = Br, Y = H) exhibited >2-fold potent insecticidal activity of podophyllotoxin against armyworm with FMRs greater than 60%. SARs were
探索基于天然产物杀虫剂候选,并且在农业天然植物的高附加值的应用,一系列双化合物从两个天然产物鬼臼毒素和野靛碱,这是从该植物中分离的制备鬼臼hexandrum和披针叶黄华分别. 化合物IIa (X = Cl,Y = R 1 = R 2 = H)、IIIc (X = Y = R 1 = R 2 = Cl) 和IVd (X = R 1 = R 2 = Br, Y = H) 显示鬼臼毒素对粘虫的 2 倍以上有效杀虫活性,FMR 大于 60%。还观察到 SAR。值得注意的是,首次提出了双杀虫剂的想法。我们希望这一想法将有助于设计新的双杀虫剂,为未来六味子和披针草作为潜在的植物性农药在农业中的高附加值应用奠定基础。
Synthesis of <i>N</i>-Arylcytisine Derivatives Using the Copper-Catalyzed Chan-Lam Coupling
作者:Oriel A. Sánchez-Velasco、Jorge Saavedra-Olavarría、Daniel A. A. Araya-Santelices、Patricio Hermosilla-Ibáñez、Bruce K. Cassels、Edwin G. Pérez
DOI:10.1021/acs.jnatprod.1c00275
日期:2021.7.23
N-Arylcytisine derivatives are quite rare. We report here a practical methodology to obtain these compounds. Using the copper-catalyzed Chan-Lam coupling, we synthesized new N-arylcytisine derivatives at room temperature, in air and using inexpensive phenylboronic acids. Cytisine and 3,5-dihalocytisines can act as substrates, and among the products, the p-Br-derivative 2r was used as a substrate to
Conjugates of 9- and 11-Halo-Substituted Cytisines with 1′-N-Methylurocanic Acid
作者:P. R. Petrova、A. V. Koval’skaya、A. N. Lobov、I. P. Tsypysheva
DOI:10.1007/s10600-019-02905-2
日期:2019.11
New (–)-cytisinederivatives were synthesized by conjugating 9- and 11-halo-substituted cytisines with 1′-N-methylurocanic acid using N-hydroxysuccinimide.
Cytisin reagiert mit Brom unter Bildung eines Perbromids und eines Dibromids. NMR‐, IR‐ und massenspektroskopische Untersuchungen ergeben für das Dibromid die Struktur 1 eines 3,5‐Dibromcytisins. Das NMR‐Spektrum desCytisins wird diskutiert. Für das Cytisinperbromid wird auf Grund vergleichender Untersuchungen an den Perbromiden von Pyridin, α‐Pyridon, Piperidin und Morpholin die Struktur 2 vorgeschlagen