Acetyl chloride → Racemic (2'S,3S,4'R)-4'-[2-(1-acetyl-4-piperidinyloxy)-5-bromo-phenyl]-6-chloro-2'-(3-chlorophenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione

Participants

Reaction Steps

In a manner similar to the method described in Example 38b, racemic (2′S,3S,4′R)-4′-[5-bromo-2-(4-piperidinyloxy)-phenyl]-6-chloro-2′-(3-chlorophenyl)spiro[3H-indole-3,3′-piperidine]-2,6′(1H)-dione (85 mg, 0.14 mmol) was reacted with acetyl chloride (13 mg, 0.17 mmol), triethylamine in tetrahydrofuran to give the title compound as a white solid (Yield: 43 mg).

Provenance & Evidence