Pyrrolidine → 2-(4-Fluorophenyl)-3-[2-(1 (S)-phenylethylamino)pyridin-4-yl]-4-(1,2,3,6-tetrahydropyridin-4-yl)-1H-pyrrole

Participants

Reaction Conditions

Reaction Steps

A mixture of 229 mg (0.44 mmol) of 4-(1-allyloxycarbonyl-1,2,3,6-tetrahydropyridin-4-yl)-2-(4-fluorophenyl)-3-[2-(1(S)-phenylethylamino)pyridin-4-yl]-1H-pyrrole [prepared as described in step 73(iii) above] in 2.5 ml of a 10:1 by volume mixture of dioxane and water, 55 μl (0.66 mmol) of pyrrolidine and 5 mg (0.0044 mmol) of tetrakis(triphenylphosphine)palladium (0) was stirred at 0° C. for 10 minutes. At the end of this time, water was added to the reaction mixture and then this was extracted with ethyl acetate. The organic extract was washed with water and then concentrated by evaporation under reduced pressure. The residue thus obtained was purified by chromatography on a silica gel column using a 10:1:1 by volume mixture of ethyl acetate, methanol and isopropylamine as the eluant to give 41 mg (yield 21%) of the title compound as a pale brown amorphous solid.

Provenance & Evidence