Ammonia → HCID 57680997, compound

Participants

Reaction Steps

A mixture of 4-chloro-5-iodo-7H-pyrrolo[2,3-d]pyrimidine (prepared according to: L. B. Townsend et al., J. Med. Chem. 1990, 33 (7), 1984-92) (280 mg, 1.00 mmol), phenylboronic acid (244 mg, 2.00 mmol), pyridine (165 μL, 161 mg, 2.04 mmol), and Cu(OAc)2 (272 mg, 1.50 mmol) in CH2Cl2 (5 mL) was stirred under air at ambient temperature for 12 d. Aqueous ammonia (1 M) and CH2Cl2 were added, the solids were filtered off, the layers of the filtrate were separated, the aqueous layer was extracted with CH2Cl2 (2×30 mL), the combined CH2Cl2 layers were washed with 1 M aqueous ammonia (2×), 2 M NaOH (2×), and brine and dried over MgSO4. The crude material was adsorbed onto Hydromatrix and chromatographed on silica gel [Jones Flashmaster, 20 g/70 mL cartridge, eluting with CH2Cl2], yielding the title compound as off-white solid. 1H NMR (CDCl3, 400 MHz): δ=7.43-7.48 (m, 1H), 7.54-7.60 (m, 2H), 7.61-7.65 (m, 2H), 7.69 (s, 1H), 8.68 (s, 1H). MS (ES+): m/z 355.9/357.9 (100/35) [MH+]. HPLC: tR=3.8 min (OpenLynx, polar—5 min).

Provenance & Evidence