Site selective synthesis and anti-inflammatory evaluation of Spiro-isoxazoline stitched adducts of arteannuin B
作者:Javeed Ur Rasool、Gifty Sawhney、Majeed Shaikh、Yedukondalu Nalli、Sreedhar Madishetti、Zabeer Ahmed、Asif Ali
DOI:10.1016/j.bioorg.2021.105408
日期:2021.12
A library of new spiroisoxazoline analogues of arteannuinB was synthesized through 1, 3-dipolar cycloaddition in stereoselective fashion and consequently screened for anti-inflammatory activity in RAW 264.7 macrophage cells. Three potent analogues (8i, 8 m, and 8n) were found to attenuate the LPS induced release of cytokines IL-6 and TNF-α more potently than the parent molecule. Also, the inhibition
青蒿素 B 的新螺异恶唑啉类似物文库通过 1, 3-偶极环加成以立体选择性方式合成,因此筛选 RAW 264.7 巨噬细胞的抗炎活性。发现三种有效的类似物(8i、8m和8n)比母体分子更有效地减弱 LPS 诱导的细胞因子 IL-6 和 TNF-α 的释放。此外,在这些细胞中对 LPS 诱导的一氧化氮产生的抑制显示出中等至高效的功效。在孵育 48 小时后,这三种有效分子均未改变 RAW 264.7 细胞的活力,这表明细胞中表现出的细胞因子和一氧化氮产生的抑制不是由于毒性。此外,这些化合物的 IC 50范围为 0.17 µM-1.57 µM 和 0.09 µM-0.35 µM,分别用于抑制 IL-6 释放和一氧化氮产生。结果揭示了对促炎介质的有效抑制,这是令人鼓舞的并且值得进一步研究以开发用于炎性疾病的新治疗剂。
POLYCYCLIC PYRAZOLINONE DERIVATIVE AND HERBICIDE COMPRISING SAME AS EFFECTIVE COMPONENT THEREOF
申请人:SAGAMI CHEMICAL RESEARCH INSTITUTE
公开号:US20160024110A1
公开(公告)日:2016-01-28
Provided are a polycyclic pyrazolinone derivative indicated by general formula (1) (in the formula, R
1
, X
1
, X
2
, X
3
, and Y indicate the definitions provided in the Specification) and a herbicide comprising same as effective component thereof.
Discovery of Natural Product‐Based Fungicides (II): Semisynthesis and Biological Activity of Sarisan Attached 3‐Phenylisoxazolines as Antifungal Agents
the discovery and development of naturalproducts‐basedfungicides, a series of thirty‐one sarisan attached 3‐phenylisoxazolines were synthesized and evaluated for their antifungalactivities against five phytopathogenic fungi (B. cinerea, C. lagenarium, A. solani, F. solani, and F. graminearum). Among all title sarisan derivatives, compounds IV2, IV14 and IV23 showed potent antifungalactivity against
develop novel antifungal agents, based on our previous work, a series of (2R,3R)-3-((3-substitutied-isoxazol-5-yl)methoxy)-2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl) butan-2-ol (a1-a26) were designed and synthesized. All of the compounds exhibited good in vitroantifungalactivities against eight human pathogenic fungi. Among them, compound a6 showed excellent inhibitory activity against Candida