Imidazole → HCID 58174132, compound

Participants

Reaction Conditions

Reaction Steps

4-[2-(Pteridin-4-ylamino)-ethyl]-phenol (1.0 g, 3.7 mmol) was partially dissolved in dry DMF (75 mL), treated with imidazole (630 mg, 9.3 mmol), cooled to 0-5° C. and treated dropwise with a solution of t-butyldimethylsilyl chloride (680 mg, 4.5 mmol) in DMF (15 mL). After warming to 25° C. the mixture was stirred for 20 h, diluted with H2O (75 mL) and extracted with EtOAc. The extracts were washed with H2O, brine, dried (Na2SO4), filtered and concentrated in vacuo to give {2-[4-(tert-butyldimethylsilanyloxy)-phenyl]-ethyl}-pteridin-4-yl-amine (1.3 g) as a white solid: mp 164-165° C.; 1H NMR (300 MHz, CDCl3) δ 8.99 (s, 1H), 8.61 (s, 1H), 8.59 (s, 1H), 8.26 (d, J=5.9 Hz, 1H), 6.8-7.2 (m, 5H), 3.98 (t, J=6.2 Hz, 2H), 2.99 (t, 6.3 Hz, 2H), 1.02 (s, 6H), 0.18 (s, 9H).

Provenance & Evidence