Morpholine → HCID 22641424, compound

Participants

Reaction Steps

A suspension of 98.5 mg (0.25 mmol) of 7-(6-chloro-pyridin-3-ylmethoxy)-2-methyl-4-pyrrolidin-1-yl-quinoline hydrochloride, product of example 56, in 0.44 ml (5 mmol) of morpholine was heated under nitrogen at 60° C. (oil bath temperature) for 23 h and further 72 h at 100° C. The mixture was cooled to RT and partitioned between EtOAc and water. The organic layer was separated, washed with water, dried over magnesium acetate and concentrated in vacuo. The residue was taken up in ether (20 ml), insoluble material was removed by filtration and the filtrate treated with 0.1 ml of 3 N HCl in MeOH. The solid that precipitated was collected, triturated with ether (5 ml), filtered off by suction, dried in a high vacuum and then applied to a to silica gel column with CH2Cl2/MeOH/NH4OH (19:1:0.05) as eluent. The purified fractions were combined and concentrated in vacuo to a small volume then acidified by adding a few drops of 3 N HCl in MeOH. The solvent was taken off in vacuo to give 23 mg (18%) of the desired 2-methyl-7-(6-morpholin-4-yl-pyridin-3-ylmethoxy)-4-pyrrolidin-1-yl-quinoline hydrochloride as a light yellow solid. ISP mass spectrum, m/e: 405.5 (M+1 calculated for C24H28N4O2: 405).

Provenance & Evidence