Morpholine → HCID 56941121, compound

Participants

Reaction Steps

To 5-{3-[4-amino-6-(methyl-phenyl-amino)-[1,3,5]triazin-2-yl]-[1,2,4]oxadiazol-5-yl}-thiophene-2-carboxylic acid (prepared in an analogous manner to Intermediate 62, 24 mg, 61 μmol) in anhydrous DMF (0.5 mL) was added (3-dimethylamino-propyl)-ethyl-carbodiimide hydrochloride (17 mg, 73 μmol), HOAt (4.1 mg, 31 μmol) and morpholine (10 μL, 92 μmol). The reaction mixture was stirred for 2 h, further morpholine (10 μL, 92 μmol) and (3-dimethylamino-propyl)-ethyl-carbodiimide hydrochloride (9 mg, 39 μmol) were added. The mixture was stirred for a further 2 h then diluted with ethyl acetate (5 mL) and extracted with aqueous citric acid (1M, 5 mL), 1 M NaOH (5 mL), saturated brine (5 mL) and dried over sodium sulphate. Removal of the solvent gave a gum with was purified on silica eluting with ethyl acetate-10% heptanes to give the title compound (20 mg, 71%).

Provenance & Evidence