甲壳素是昆虫表皮和真菌细胞壁的主要结构成分,但在植物和脊椎动物中却不存在,被认为是害虫防治剂的安全和选择性目标。几丁质合成抑制剂(CSIs)众所周知是昆虫生长调节剂(IGR),但在农业中却很少被用作杀真菌剂。为了找到具有良好活性的新型CSI,选择典型的CSI苯甲酰苯基脲作为先导化合物,并通过将苯甲酰基苯基脲的脲键转化为氨基甲酸酯设计了26种新型的芳基氨基甲酸-5-芳基-2-呋喃甲酯。并将苯胺部分变成呋喃甲基。合成了标题化合物,并通过IR,1确认了其结构1 H NMR和元素分析。进行了初步的杀虫和杀真菌生物测定。结果表明,标题化合物对淡色库蚊和小菜蛾没有杀虫作用,但大多数化合物对棒杆菌,黄瓜枯草芽孢杆菌,灰葡萄孢菌和尖孢镰刀菌均表现出良好的杀菌活性。特别是,化合物V-4,V-6,V-7和V-8对四种菌株的活性比商业化杀菌剂更好。形态学结果表明该化合物V-21干扰了C. cassiicola的
excellent fungicidalactivities, and the position of the substituents played an important role in fungicidalactivities. Especially, compound 5n, exhibited better fungicidalactivities than the commercial fungicide flutolanil against two tested fungi Valsa mali and Sclerotinia sclerotiorum, with EC50 values of 3.44 and 2.63 mg/L, respectively. And it also displayed good in vivo fungicidalactivity against
Synthesis and Bioactivity of N-Benzoyl-N'-[5-(2'-substituted phenyl)-2-furoyl] Semicarbazide Derivatives
作者:Zining Cui、Yun Ling、Baoju Li、Yongqiang Li、Changhui Rui、Jingrong Cui、Yanxia Shi、Xinling Yang
DOI:10.3390/molecules15064267
日期:——
novel chitin synthesis inhibitors (CSIs) with good activity, benzoylphenylurea, a typical kind of CSIs, was chosen as the lead compound and 15 novel derivatives containing furan moieties were designed by converting the urea linkage of benzoylphenylureas into a semicarbazide and changing the aniline part into furoyl groups. The title compounds were synthesized by the reaction of substituted benzoyl isocyanates
Investigation of Novel Pesticides with Insecticidal and Antifungal Activities: Design, Synthesis and SAR Studies of Benzoylpyrimidinylurea Derivatives
作者:Peiqi Chen、Xiangmin Song、Yongmei Fan、Weihao Kong、Hao Zhang、Ranfeng Sun
DOI:10.3390/molecules23092203
日期:——
mL−1. Both compounds 19 and 25 exhibited broad-spectrum fungicidal activity (>50% inhibitory activities against 13 phytopathogenic fungi), which were better than those of the commercial pesticide pyrimethanil (>50% inhibitory activities against eight phytopathogenic fungi). Furthermore, compounds 19 and 25 exhibited protective activity against Sclerotinia sclerotiorum on leaves of Brassica oleracea L
Pesticidal N-(3-trimethylstannylalkylene)-N'-phenyl-sulfonyl or
申请人:Ciba-Geigy Corporation
公开号:US04456559A1
公开(公告)日:1984-06-26
There are described N-(3-trimethylstannylalkylene)-N'-phenylsulfonyl- and -benzoylureas of the formula ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.6 -alkyl or C.sub.3 -C.sub.8 -cycloalkyl, X is --CO-- or --SO.sub.2 --, and Y.sub.1, Y.sub.2 and Y.sub.3 independently of one another are each hydrogen, halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -haloalkyl, C.sub.1 -C.sub.6 -alkoxy or nitro. Also described are the production thereof and the use of the novel compounds for combating pests; and the intermediates of the formula ##STR2## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.6 -alkyl or C.sub.3 -C.sub.8 -cycloalkyl are likewise described.
Synthesis and Antitumor Activity of Novel N-Benzoyl-N'-substituted Pyrimidinyl (Thio)semicarbazide Derivatives
作者:Gaopeng Song、Jianzuo Li、Hao Tian、Yasheng Li、Dekun Hu、Ying Li、Zining Cui
DOI:10.2174/1570180812666151003002644
日期:2016.3.3
A series of substituted pyrimidinyl (thio)semicarbazide derivatives were designed and synthesized. The antitumor results showed that the activity of thiosemicarbazide compounds (series II) was generally higher than that of the corresponding semicarbazide derivatives (series I). Among them, IIk displayed higher cytotoxicity against HL-60, BGC-823 and Bel-7402 than that of adriamycin and exhibited broad