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Synthesis and Macrofilaricidal Activity of Substituted 2‐Hydroxy/5‐Hydroxy/2‐Methyl‐1,4‐Naphthoquinones

Identifieur interne : 001115 ( Main/Exploration ); précédent : 001114; suivant : 001116

Synthesis and Macrofilaricidal Activity of Substituted 2‐Hydroxy/5‐Hydroxy/2‐Methyl‐1,4‐Naphthoquinones

Auteurs : Twinkle Karunan [Inde] ; Nisha Mathew [Inde] ; Lakshmy Srinivasan [Inde] ; Kalyanasundaram Muthuswamy [Inde]

Source :

RBID : ISTEX:DAE83B294620CE4146AF67629B4038D6261297F9

English descriptors

Abstract

Preclinical Research Lymphatic filariasis is a disfiguring disease caused by parasitic worms that destroy the human lymphatic system leading to substantial morbidity. The current drug of choice for the treatment of filariasis is diethylcarbamazine and ivermectin with albendazole which are only effective against the microfilaria, leaving the adult worm unaffected, requiring the development of “adulticidal drugs.” Thirty amino substituted 2‐hydroxy/5‐hydroxy/2‐methyl‐1,4‐naphthoquinones were synthesized via the reaction of 2‐hydroxy/5‐hydroxy/2‐methyl‐1,4‐naphthoquinones with different primary and secondary amines. Compounds 1–30 were evaluated for in vitro antifilarial activity against the adult bovine filarial worm Setaria digitata as assessed by worm motility and MTT (3‐(4,5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyltetrazolium bromide) reduction assays. The mutagenecity, tumerogenecity, irritantancy, reproductive toxicity, drug score, druglike, and cLogP properties were calculated using OSIRIS property predictor. Ten compounds showed macrofilaricidal activity with ED50 values ranging between 0.086 and 7.6 μM. Taking into account the biological effects and the promising drug‐like profiles of these compounds, these represent valid leads for the development of antifilarial agents against adult filarial worm.

Url:
DOI: 10.1002/ddr.21065


Affiliations:


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<div type="abstract">Preclinical Research Lymphatic filariasis is a disfiguring disease caused by parasitic worms that destroy the human lymphatic system leading to substantial morbidity. The current drug of choice for the treatment of filariasis is diethylcarbamazine and ivermectin with albendazole which are only effective against the microfilaria, leaving the adult worm unaffected, requiring the development of “adulticidal drugs.” Thirty amino substituted 2‐hydroxy/5‐hydroxy/2‐methyl‐1,4‐naphthoquinones were synthesized via the reaction of 2‐hydroxy/5‐hydroxy/2‐methyl‐1,4‐naphthoquinones with different primary and secondary amines. Compounds 1–30 were evaluated for in vitro antifilarial activity against the adult bovine filarial worm Setaria digitata as assessed by worm motility and MTT (3‐(4,5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyltetrazolium bromide) reduction assays. The mutagenecity, tumerogenecity, irritantancy, reproductive toxicity, drug score, druglike, and cLogP properties were calculated using OSIRIS property predictor. Ten compounds showed macrofilaricidal activity with ED50 values ranging between 0.086 and 7.6 μM. Taking into account the biological effects and the promising drug‐like profiles of these compounds, these represent valid leads for the development of antifilarial agents against adult filarial worm.</div>
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