Synthesis and Molluscicidal Activity of New Chromene and Pyrano[2,3-c]pyrazole Derivatives
作者:Fathy M. Abdelrazek、Peter Metz、Olga Kataeva、Anne Jäger、Sherif F. El-Mahrouky
DOI:10.1002/ardp.200700157
日期:2007.10
derivatives 13a–d to afford the arylidene exchange derivatives 14a–c and the pyranopyrazole derivative 15, respectively. The arylidene derivatives 10a, b react also with indane‐1,3‐dione 16 to afford the arylidene exchange derivatives 18a, b. The molluscicidal activity of the synthesized compounds towards Biomphalaria alexandrina snails, the intermediate host of Schistosoma mansoni, was investigated and most
色烯衍生物4与乙酸酐、异硫氰酸苯酯和原甲酸乙酯反应,分别得到N-乙酰衍生物6、色烯嘧啶8和甲酰亚胺酯9。2- (1H - Indol - 3-ylmethylene)-丙二腈 10b 与 1,3- 环己二酮和二甲酮 11a、b 反应,分别得到 4(3-吲哚基)-色烯衍生物 12a、b,并与吡唑啉酮衍生物 13a- d 分别得到亚芳基交换衍生物 14a-c 和吡喃并吡唑衍生物 15。亚芳基衍生物10a、b也与茚满-1,3-二酮16反应得到亚芳基交换衍生物18a、b。研究了合成的化合物对曼氏血吸虫的中间宿主 Biomphalaria alexandrina 蜗牛的杀软体动物活性,其中大多数表现出弱到中等的活性。