Triethylamine → HCID 76568138, compound

Participants

Reaction Steps

In a manner similar to the method described in example 193, racemic (2′R,3R,4′S)-2′-(2-amino-5-iodophenyl)-6-chloro-4′-(3-chlorophenyl)spiro[3H-indole-3,3′-piperidine]-2,6′(1H)-dione prepared in example 203 (0.2 g, 0.35 mmol) was reacted with trimethylsilyl acetylene (68 mg, 0.69 mmol), CuI (0.13 g, 0.69 mmol), triethylamine (70 mg, 0.69 mmol), and dichlorobis(triphenylphosphine)palladium (49 mg, 0.069 mmol) in anhydrous tetrahydrofuran, and then treated with aqueous NaOH in methanol to give racemic (2′R,3R,4′S)-2′-(2-amino-5-ethynylphenyl)-6-chloro-4′-(3-chlorophenyl)spiro[3H-indole-3,3′-piperidine]-2,6′(1H)-dione as a white solid (Yield 0.25 g, 84%)

Provenance & Evidence