Hydrazine hydrate (1:1) → HCID 178446178, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 42 mg (0.08 mmol) of ethyl 4-((3R,5R,6S)-5-(3-chlorophenyl)-6-(4-chlorophenyl)-3-methyl-2-oxo-1-(pentan-3-yl)piperidin-3-yl)-3-oxobutanoate (Example 79, Step B) in ethanol (4 mL) was added 36 μL (0.48 mmol) hydrazine monohydrate (64-65% weight percent hydrazine). The resulting colorless solution was heated at 65° C. for 3.5 h, and then was concentrated under reduced pressure. Purification of the residue by reversed phase prep. HPLC (Sunfire Prep C18 OBD 10 μm column, gradient elution of 45% MeCN in water to 80% MeCN in water over a 30 min period, where both solvents contain 0.1% TFA) provided the title compound as a white solid.

Provenance & Evidence