Hydrochloric Acid → Methyl(2S,3S,5S)-3-[(hydroxyamino)carbonyl]-2-[(4-phenylpiperazin-1-yl)carbonyl]-5-(phenylthio)piperidine-1-carboxylate

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Reaction Steps

Part 3. methyl(2S, 3S, 5S)-3-[(hydroxyamino)carbonyl]-2-[(4-phenylpiperazin-1-yl)carbonyl]-5-[(phenylthio)piperidine-1-carboxylate: To the reaction mixture of dimethyl (2S,3S,5S)-2-[(4-phenylpiperazin-1-yl)carbonyl]-5-(phenylthio)piperidine-1,3-dicarboxylate (51 mg, 0.00010 mol) in tetrahydrofuran (0.50 mL, 0.0062 mol) was added 1.640 M of N-hydroxyamine in methanol (1.25 mL) made from the corresponding salt and sodium methoxide. After stirred at rt for 1 h, the mixture was acidified with 1N HCl. The resultant mixture was applied directly on RP-HPLC to afford the product as a TFA salt (39 mg, 63%). MS (ESI): (M+H)+=499.1.

Provenance & Evidence