7-(3,5-Dimethyl-4-isoxazolyl)-8-(methyloxy)-1-[(1R)-1-phenylethyl]-1,3-dihydro-2H-imidazo[4,5-c]quinolin-2-one (for a preparation see Intermediate 11) (0.16 g, 0.386 mmol) was dissolved in POCl3 (1 ml, 10.73 mmol) and heated at 100° C. for 3 days. The reaction mixture was evaporated in vacuo to give a black gum. The residue was dissolved in NMP (2 ml) and morpholine (2 ml, 22.96 mmol) was added, then the solution was heated in the microwave at 150° C. for 1 h. The reaction mixture was loaded onto a 20 g SCX-2 cartridge and washed through with methanol (40 ml), then eluted with 2M methanolic ammonia and the eluant evaporated in vacuo to give an amber oil. This was dissolved in DMSO (1 ml) and purified by MDAP (HpH) to give 7-(3,5-dimethyl-4-isoxazolyl)-8-(methyloxy)-2-(4-morpholinyl)-1-[(1R)-1-phenylethyl]-1H-imidazo[4,5-c]quinoline (1.4 mg, 2.90 μmol, 0.750% yield). LCMS (formate) Rt 0.86 min, MH+ 484
