Hydrochloric Acid → HCID 57974092, compound

Participants

Reaction Steps

To a solution of tert-butyl (3R)-3-(3,5-difluorophenyl)-4-(2-ethoxy-2-oxoethyl)-3-methyl-5-oxo-1,4-diazaspiro[5.5]undecane-1-carboxylate from Step I (65 mg, 0.135 mmol) in THF (1.5 mL) and H2O (0.5 mL) was added 1 N aqueous LiOH (0.14 mL, 0.14 mmol) and the resulting mixture was stirred at ambient temperature for 1 h. The mixture was adjusted to pH 7 by addition of 1 N HCl and concentrated to dryness in vacuo to give the title compound. MS: m/z=397 (M−C4H7).

Provenance & Evidence