Synthesis and antileishmanial activity of 1,3-bis(aryloxy)propan-2-amines
作者:Stefânia N. Lavorato、Mariana C. Duarte、Daniela P. Lage、Carlos A. P. Tavares、Eduardo A. F. Coelho、Ricardo J. Alves
DOI:10.1007/s00044-017-1805-1
日期:2017.5
We describe herein the antileishmanial activity of 1,3-bis(aryloxy)propan-2-amines, prepared in four simple steps from epichlorohydrin. Among the evaluated compounds, three (4o, 4q, and 4r) displayed considerable activity against Leishmania amazonensis promastigote forms, with IC50 values below 10 µM. We also analyzed the effects of the nature and the position of ring substituent on activity. Two amines
Dendritic cell-specific, intercellular adhesion molecule-3-grabbing non-integrin (DC-SIGN) is a C-type lectin expressed specifically on dendritic cells. It is a primary site for recognition and binding of various pathogens and thus a promising therapeutic target for inhibition of pathogen entry and subsequent prevention of immune defense cell infection. We report the design and synthesis of D-mannose-based DC-SIGN antagonists bearing diaryl substituted 1,3-diaminopropanol or glycerol moieties incorporated to target the hydrophobic groove of the receptor. The designed glycomimetics were evaluated by in vitro assay of the isolated DC-SIGN extracellular domain for their ability to compete with HIV-1 gp120 for binding to the DC-SIGN carbohydrate recognition domain. Compounds 14d and 14e, that display IC50 values of 40 mu M and 50 mu M, are among the most potent monovalent DC-SIGN antagonists reported. The antagonistic effect of all the synthesized compounds was further evaluated by a one-point in vitro assay that measures DC adhesion. Compounds 14d, 14e, 18d and 18e were shown to act as functional antagonists of DC-SIGN-mediated DC adhesion. The binding mode of 14d was also studied by molecular docking and molecular dynamics simulation, which revealed flexibility of 14d in the binding site and provides a basis for further optimization. (C) 2014 Elsevier Masson SAS. All rights reserved.
Hypocholesterolemic activity of 1,3-bis(substituted phenoxy)-2-propanones
作者:Claude Piantadosi、Iris H. Hall、Steven D. Wyrick、Khalid S. Ishaq
DOI:10.1021/jm00224a006
日期:1976.2
phenoxy)-2-propanones was found to be active hypocholesterolemicagents at 10 mg/kg/day. The p-chloro- and p-methyl-substituted phenoxy compounds possess the highest activity. These compounds did not possess the estrogenic and antifertility activities of the related previously reported derivatives of the bis(beta-phenylethyl) ketone series. The 1,3-bis(p-methylphenoxy)-2-propanone (7) also lowered serum triglycerides
发现一系列的1,3-双(取代的苯氧基)-2-丙烷是有效的降胆固醇药,剂量为10 mg / kg / day。对氯-和对甲基取代的苯氧基化合物具有最高的活性。这些化合物不具有以前报道过的双(β-苯乙基)酮系列相关衍生物的雌激素和抗生育活性。1,3-双(对甲基苯氧基)-2-丙酮(7)也会降低血清甘油三酸酯和甘油,这似乎是由于血清脂肪酶水平升高和肝脂肪酶活性降低所致。肝脏减少了游离脂肪酸向复杂脂质中的掺入。胆固醇在治疗的动物中排泄更快。
1,3-Bis(aryloxy)propan-2-ols as potential antileishmanial agents
作者:Stefânia N. Lavorato、Mariana C. Duarte、Daniela P. Lage、Carlos A. P. Tavares、Eduardo A. F. Coelho、Ricardo J. Alves
DOI:10.1111/cbdd.13024
日期:2017.11
We describe herein the synthesis and antileishmanial activity of 1,3-bis(aryloxy)propan-2-ols. Five compounds (2, 3, 13, 17, and 18) exhibited an effective antileishmanial activity against stationary promastigote forms of Leishmania amazonensis (IC50 < 15.0 μm), and an influence of compound lipophilicity on activity was suggested. Most of the compounds were poorly selective, as they showed toxicity