84370-82-1Relevant articles and documents
Synthesis and in vitro evaluation of triphenylphosphonium derivatives of acetylsalicylic and salicylic acids: structure-dependent interactions with cancer cells, bacteria, and mitochondria
Tsepaeva, Olga V.,Salikhova, Taliya I.,Grigor’eva, Leysan R.,Ponomaryov, Denis V.,Dang, Trinh,Ishkaeva, Rezeda A.,Abdullin, Timur I.,Nemtarev, Andrey V.,Mironov, Vladimir F.
, p. 925 - 939 (2021/01/25)
Salicylic acid (SA) remains one of the most fruitful natural compounds to generate drug molecules with versatile activities. In this study, effective synthesis of SA and acetylsalicylic acid (ASA) derivatives with a carrier triphenylphoshonium (TPP) group was proposed. A series of SA and ASA conjugates linked with the TPP group via alkyl chain linker (C3-C10) was synthesized. The conjugates showed enhanced TPP-mediated cytotoxicity towards MCF-7, Caco-2, PC-3 cells in proportion to the linker length. 7e, 8e (C9), and 7f (C10) were the most active against the cancer cells with IC50 = 0.6–1.9 μM while were less toxic for HSF. Similarly, antibacterial (bactericidal) activity of the compounds against S. aureus increased with the linker elongation. The lowest MIC for SA and ASA derivatives were 4 and 1 μM, respectively. The TPP conjugates induced early linker length-dependent mitochondria depolarization and concurrent superoxide radical production in the cancer cells. The most lipophilic conjugates were found to specifically interact with ROS probe 2′,7′-dichlorofluorescin diacetate, forming mixed aggregates with the probe and inhibiting its fluorescence upon oxidation. These interactions were exploited to probe the compounds inside living cells. The results identify 7e and 7f as promising mitochondria-modulating and anticancer agents with increased cellular availability. [Figure not available: see fulltext.]
SYNTHESIS OF SOME SALICYLIC ACID DERIVATIVES AND DETERMINATION OF THEIR ACIDITY CONSTANTS
Djurendic, Evgenija A.,Suranyj, Terezia M.,Miljkovic, Dusan A.
, p. 1763 - 1768 (2007/10/02)
Several derivatives of salicylic acid have been synthesized by the condensation reaction of methyl salicylate with α,ω-diols and α,ω-diamines, and the acidity constants of five newly prepared derivatives have been determined in 61.10percent aqueous ethanol using potentiometric titration method.In order to avoid calibration of pH-meter, the standard potential of glass electrode was determined from the titration data.The results obtained are discussed with regard to different resonance effects of the ester oxygen and the amide nitrogen atoms.
