Ammonia → HCID 56591176, compound

Participants

Reaction Conditions

Reaction Steps

A sealed tube was charged with methyl 2-((3S,5R,6S)-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-(cyclopropylmethyl)-2-oxopiperidin-3-yl)acetate (Example 59, Step A) (109 mg, 0.244 mmol), ammonia, 7N solution in methanol (2 ml, 14.00 mmol) and sodium cyanide (1.197 mg, 0.024 mmol). The tube was sealed and heated to 50° C. The pressure reached 35 kilopascals after 1 hour. The reaction was stirred at 50° C. for 18 h. The reaction was cooled to rt and anhydrous ammonia (gas) was bubbled through the solution for ten minutes at room temperature. The reaction mixture was capped and heated to 50° C. for 18 h. The reaction was cooled to rt and anhydrous ammonia (gas) was bubbled through the solution for twenty minutes at room temperature. The reaction mixture was capped and heated to 50° C. for 2 days. The crude reaction was concentrated under reduced pressure and purified by reversed phase preparatory HPLC (column: Gemini-NX C18 5 um column; Phenomonex, Torrance, Calif.; eluent: 0 to 100% MeCN+0.1% TFA in water+0.1% TFA, over 20 minutes) to afford the title compound.

Provenance & Evidence