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ID: ALA3808272

Journal: Bioorg Med Chem Lett

Title: Discovery of (S)-4-isobutyloxazolidin-2-one as a novel leucyl-tRNA synthetase (LRS)-targeted mTORC1 inhibitor.

Authors: Yoon S, Kim JH, Yoon I, Kim C, Kim SE, Koh Y, Jeong SJ, Lee J, Kim S, Lee J.

Abstract: A series of leucinol analogs were investigated as leucyl-tRNA synthetase-targeted mTORC1 inhibitors. Among them, compound 5, (S)-4-isobutyloxazolidin-2-one, showed the most potent inhibition on the mTORC1 pathway in a concentration-dependent manner. Compound 5 inhibited downstream phosphorylation of mTORC1 by blocking leucine-sensing ability of LRS, without affecting the catalytic activity of LRS. In addition, compound 5 exhibited cytotoxicity against rapamycin-resistant colon cancer cells, suggesting that LRS has the potential to serve as a novel therapeutic target.

CiteXplore: 27209231

DOI: 10.1016/j.bmcl.2016.05.011