Methylamine → HCID 71554580, compound

Participants

Reaction Steps

100 mg of 2,4-dichloro-3-({3-[5-methoxy-4-(pyridin-4-ylamino)pyrimidin-2-yl]-1H-indazol-1-yl}methyl)benzoic acid (19-1, 0.192 mmol, 1. eq.) were dissolved in 0.953 ml of dry dimethyl sulfoxide. 80.2 mg of N-[(dimethylamino)(3H-[1,2,3]triazolo[4,5-b]pyridin-3-yloxy)methylidene]-N-methylmethanaminium hexafluorophosphate (0.211 mmol, 1.1 eq.), 67 μl of N-ethyl-N-(propan-2-yl)propan-2-amine (0.384 mmol, 2 eq.) and 96 μl of 2 N methyl amine in tetrahydrofuran were added in this sequence. The reaction mixture was stirred at room temperature for 18 hours. 80.2 mg of N-[(dimethylamino)(3H-[1,2,3]triazolo[4,5-b]pyridin-3-yloxy)-methylidene]-N-methylmethanaminium hexafluorophosphate (0.211 mmol, 1.1 eq.), 67 μl of N-ethyl-N-(propan-2-yl)propan-2-amine (0.384 mmol, 2 eq.) and 96 μl of 2 N methyl amine in tetrahydrofuran were added in this sequence again twice and stirred each time at room temperature for 24 hours. The reaction mixture was stirred at 50° C. bath temperature for further 2 hours. Then the mixture was filtered off purified by preparative HPLC to yield 15 mg (0.03 mmol, 14.3%) of the analytically pure target compound.

Provenance & Evidence