Tetrahydrofuran → HCID 86651622, compound

Participants

Reaction Conditions

Reaction Steps

Methyl (5R,7R)-8-{[{(1R)-1-[3,5-bis(trifluoromethyl)phenyl]ethyl}(methyl)amino]carbonyl}-7-(4-fluoro-2-methylphenyl)-1,8-diazaspiro[4.5]decane-4-carboxylate (Intermediate 41, 12 mg, 0.020 mmol) was dissolved in Methanol (0.3 ml) and Water (0.3 ml). To the mixture was added LiOH H2O (0.918 mg, 0.022 mmol) and the reaction mixture was left stirring overnight at 50° C. To the solution was added Tetrahydrofuran (THF) (0.3 ml) and it was heated at 70° C. for 1 more hour. The solvent was removed in vacuo obtaining the title compound (11.2 mg, 0.019 mmol, 96% yield); 1H NMR (400 MHz, DMSO-d6) δ ppm 7.98 (s, 1H) 7.69 (s, 2H) 7.07-7.15 (m, 1H) 6.84-6.91 (m, 1H) 6.69-6.79 (m, 1H) 5.25-5.38 (m, 1H) 4.43 (d, 1H) 2.98-3.23 (m, 2H) 2.69 (s, 3H) 2.60-2.92 (m, 2H) 2.31 (s, 3 H) 1.56-2.04 (m, 5H) 1.48 (d, 3H) 1.40-1.54 (m, 1H) 1.33 (d, 1H). Stereochemistry consistent with the following data:

Provenance & Evidence