2-Pyridinemethanamine → HCID 67055860, compound

Participants

Reaction Steps

To a stirred suspension of 5-bromo-2-(pyrimidin-5-yl)quinazolin-4-ol (2.0 g, 6.5 mmol) in DMF (20 mL) was added diisopropylethyl amine (3.4 ml, 19 mmol) followed by PyBroP (3.7 g, 7.9 mmol). After 5 min stirring at room temperature, 2-aminomethylpyridine (1.0 mL, 9.8 mmol) was added to the reaction. Upon completion of addition, the reaction mixture was warmed to 80° C. where it stirred for 2 h (during which time reaction became a clear solution). At the conclusion of this period, the reaction mixture was quenched by the addition of cold water and then extracted into 50% ethyl acetate and hexane mixture (200 mL). The organic extracts were dried, concentrated, purified by column chromatography using ethyl acetate and hexanes as eluent to yield the crude produce. The crude product was further purified by trituration with ethyl acetate and hexane to yield 5-bromo-N-(pyridin-2-ylmethyl)-2-(pyrimidin-5-yl)quinazolin-4-amine (0.5 g, 20% yield). 1H NMR (400 MHz, CDCl3, δ): 5.07 (d, J=4.4 Hz, 2H); 7.26 (m, 1H); 7.41 (d, J=7.6 Hz, 1H); 7.53 (t, J=8 Hz, 1H); 7.71-7.73 (m, 2H); 7.86 (dd, J=0.8 Hz, 8.4 Hz, 1H); 8.65 (d, J=4 Hz, 1H); 9.30 (s, 1H); 9.38 (br s, 1H); 9.75 (s, 2H). ES-MS: [M++1]=393 and [M++3]=395.

Provenance & Evidence