1-(2,6-Difluorophenyl)piperazine → 8-{2-[4-(2,6-Difluorophenyl)piperazino]ethyl}-8-azaspiro[4.5]decane-7,9-dione

Participants

Reaction Conditions

Reaction Steps

A mixture of 1-(2,6-difluorophenyl)piperazine (23.8 mg, 0.120 mmol) and 8-(2-chloroethyl)-8-azaspiro[4.5]decane-7,9-dione(20 mg, 0.087 mmol) was heated with stirring at 160° C. for 5 hours. The residue was purified by preparative HPLC (see Example 8 for conditions), giving (after removal of the solvent) the title compound as a pale yellow oil (8.9 mg, 0.023 mmol, 26%): ESI-MS m/z 392 (MH+).

Provenance & Evidence