Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. , Safety of (R)-2-Aminopentanedioic acid, 6893-26-1, Name is (R)-2-Aminopentanedioic acid, molecular formula is C5H9NO4, belongs to amides-buliding-blocks compound. In a document, author is Vijayakumar, Veeraragavan, introduce the new discover.
In searching for novel fungicidal leads, the novel bioactive succinate dehydrogenase inhibitor (SDHI) derivatives were designed and synthesized by the inversion of carbonyl and amide groups. Bioassay indicated that compound 5i stood out with a broad spectrum of in vitro activity against five fungi. Its EC50 value (0.73 mu g/mL) was comparable to that of boscalid (EC50 of 0.51 mu g/mL) and fluxapyroxad (EC50 of 0.19 mu g/mL) against Sclerotinia sclerotiorum. For Rhizoctonia cerealis, 5i and 5p with EC50 values of 4.61 and 6.48 mu g/mL, respectively, showed significantly higher activity than fluxapyroxad with the EC(50 )value of 16.99 mu g/mL. In vivo fungicidal activity of 5i exhibited an excellent inhibitory rate (100%) against Puccinia sorghi at 50 mu g/mL, while the positive control boscalid showed only a 70% inhibitory rate. Moreover, 5i showed promising fungicidal activity with a 60% inhibitory rate against Rhizoctonia solani at 1 mu g/mL, which was better than that of boscalid (30%). Compound 5i possessed better in vivo efficacy against P. sorghi and R. solani than boscalid. Molecular docking showed that even the carbonyl oxygen atom of Si was far from the pyrazole ring. It could also form hydrogen bonds toward the hydroxyl hydrogen and amino hydrogen of TYR58 and TRP173 on SDH, respectively, which consisted of the positive control fluxapyroxad. Fluorescence quenching analysis and SDH enzymatic inhibition studies also validated its mode of action. Our studies showed that 5i was worthy of further investigation as a promising fungicide candidate.
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Reference:
Amide – Wikipedia,
,Amide – an overview | ScienceDirect Topics