HCID 86757661, compound → HCID 9806530, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of (2R,3S)-3-(formyl-tetrahydropyranyloxyamino)-2-(4-phenylcyclohexylmethyl)butanoic acid [(1S)-2,2-dimethyl-1-(1,3-thiazol-2-ylcarbamoyl)-1-propyl]amide (0.12 g, 0.20 mmol) in 80% acetic acid (10 mL) is heated at 40° C. for 18 h. The mixture is concentrated in vauco, the residue is taken up in ethanol and concentrated in vacuo. Repeating the ethanol treatment several times and addition of water is followed by stirring at 25° C. for 18 h. The resulting solid is filtered, washed with water, and dried to give 0.083 g (80%) of (2R,3S)-3-(formyl-hydroxyamino)-2-(4-phenylcyclohexylmethyl)butanoic acid [(1S)-2,2-dimethyl-1-(1,3-thiazol-2-ylcarbamoyl)-1-propyl]amide as a white solid, m.p. 213-214° C.

Provenance & Evidence