合成了4-烷基/芳基-5-壬酰基/十八烷酰基-2,4-二氢-3 H -1,2,4-三唑啉-3-硫酮作为潜在的抗菌剂。合成过程包括壬酰基/十八烷基肼与选择的烷基/芳基异硫氰酸酯的反应。所制备的硫代氨基脲通过环化得到所需的1,2,4-三唑。许多合成的化合物针对两种革兰氏阳性菌,两种革兰氏阴性菌和两种真菌进行了体外测试。
合成了4-烷基/芳基-5-壬酰基/十八烷酰基-2,4-二氢-3 H -1,2,4-三唑啉-3-硫酮作为潜在的抗菌剂。合成过程包括壬酰基/十八烷基肼与选择的烷基/芳基异硫氰酸酯的反应。所制备的硫代氨基脲通过环化得到所需的1,2,4-三唑。许多合成的化合物针对两种革兰氏阳性菌,两种革兰氏阴性菌和两种真菌进行了体外测试。
Synthesis and in vitro leishmanicidal activity of some hydrazides and their analogues
作者:Khalid Mohammad Khan、Maimona Rasheed、Zia Ullah、Safdar Hayat、Farhana Kaukab、M.Iqbal Choudhary、Atta ur-Rahman、Shahnaz Perveen
DOI:10.1016/s0968-0896(02)00611-9
日期:2003.4
Twenty-one hydrazides were synthesized by treating different esters with hydrazine hydrate. Substituted hydrazides were obtained by treating hydrazides with alkyl/aryl/acyl halides. Some of these compounds exhibit potential in vitro leishmanicidal activity. The structures of all the synthesized compounds were confirmed by spectroscopic analysis.
作者:Khalid M. Khan、Nida Ambreen、Uzma Rasool Mughal、Saima Jalil、Shahnaz Perveen、M. Iqbal Choudhary
DOI:10.1016/j.ejmech.2010.05.065
日期:2010.9
3-formylchromone (1) and its derivatives 2–24 and evaluation of their potentialantiinflammatory activities is reported here. These compounds were characterized by 1H NMR, EI MS, IR, and UV spectroscopic techniques and elemental analysis. The synthesized compounds were evaluated by using various in vitro and in vivo assay models for antiinflammatory activity and their effects were compared with known standard
Twenty-eight acyl hydrazides (1-28) are subjected for nitric oxide scavenging activities and their structureactivity relationship (SAR) is established. Compounds 1-28 showed a varying degree of activity having IC50 values in the range of 9.1 ± 6.5 - 231.1 μM. It was found that twenty-five (25) out of twenty-eight (28) compounds, showed an excellent nitric oxide scavenging activity. It was observed that the activity mainly depends on the substitution on acyl hyrazide moiety. 3-Propylpyrozole-5-carbohydrazide (27) was found to be the most active in the series with an IC50 value of 9.1 μM. Thus, compound 27 may serve as a lead compound for further development as potent antioxidant agent.
Acylhydrazide Schiffbases 1-27 were evaluated for their in vitro DPPH radical and superoxide anion scavenging activity. They showed a varying degree of DPPH radical scavenging activity with IC(50) values between 31.25-473.59 µM. Compounds 8, 2, and 10 have IC(50) values 31.25 ± 1.32, 34.40 ± 0.66, and 37.24 ± 0.4 µM, respectively. Standard npropylgallate showed an IC(50) value 30.12 ± 0.27 µM. Acylhydrazides
Design, Synthesis, and Study of the Insecticidal Activity of Novel Steroidal 1,3,4-Oxadiazoles
作者:Shichuang Ma、Weiqi Jiang、Qi Li、Tian Li、Wenjun Wu、Hangyu Bai、Baojun Shi
DOI:10.1021/acs.jafc.1c00088
日期:2021.10.6
was designed and synthesized, and the target compounds were evaluated for their insecticidalactivity against five aphid species. Most of the tested compounds exhibited potent insecticidalactivity against Eriosoma lanigerum (Hausmann), Myzus persicae, and Aphis citricola. Compounds 20g and 24g displayed the highest activity against E. lanigerum, showing LC50 values of 27.6 and 30.4 μg/mL, respectively