Formaldehyde → HCID 71572548, compound

Participants

Reaction Steps

To a solution of tert-butyl 6-(3-((4-((3-chloro-4-fluorophenyl)amino)-7-methoxyquinazolin-6-yl)oxy) propyl)octahydro-1H-pyrrolo[2,3-c]pyridine-1-carboxylate (0.20 g) in the mixture solvent of CH2Cl2 and MeOH was added 37% HCHO (0.10 mL), AcOH (0.15 mL) and NaB(O2CCH3)3H (0.26 g) in turn at room temperature. The mixture was stirred for 1.5 h, diluted with water and extracted with CH2Cl2. The organic layer was dried over anhydrous Na2SO4 for 1 h and filtered. The filtrate was concentrated and redissolved in EA, to this, a solution of HCl in EtOAc (10 mL) was added under stirring. The mixture was filtered to give the title compound as a solid (0.13 g, 68.00%), HPLC: 98.22%. The compound was characterized by the following spectroscopic data: MS (ESI, pos. ion) m/z: 500.2 (M+1); 1H NMR (400 MHz, CDCl3) δ: 1.45 (m, 2H), 1.68 (m, 3H), 1.80 (m, 2H), 2.10 (m, 1H), 2.22 (m, 5H), 2.25 (s, 3H), 2.42 (m, 3H), 4.03 (s, 3H), 4.10 (m, 2H), 6.76 (s, 1H), 7.16 (d, J=8.2 Hz, 1H), 7.24 (s, 1H), 7.28 (d, J=8.0 Hz, 1H), 7.41 (s, 1H), 8.54 (s, 1H) ppm.

Provenance & Evidence