Triethylamine → 6-Chloro-2,4,8,17,22-pentaazatetracyclo[14.3.1.1(3,7).1(9,13)]docosa-1(20),3(22),4,6,9(21),10,12,16,18-nonaene

To a mixture of N-{3-[2-(4-aminopyridin-2-yl)ethyl]phenyl}-2,5-dichloropyrimidin-4-amine dihydrochloride (90.0 mg, 0.21 mmol) and triethylamine (0.087 mL, 0.62 mmol) in dry 1,4-dioxane (1.8 mL) was added (9,9-dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine) (7.2 mg, 0.013 mmol), palladium acetate (1.9 mg, 0.008 mmol) and cesium carbonate (135 mg, 0.42 mmol). The mixture was degassed by bubbling N2 through the solution. The sealed tube was then microwaved at 150° C. for 30 min. The reaction mixture was diluted with THF/MeOH, filtered, and concentrated to give the residue, which was purified by silica gel column chromatography to provide the desired product (24 mg, 36%) as a white powder. LCMS for C17H15ClN5 (M+H)+: m/z=324.0. 1H NMR (400 MHz, DMSO-d6): δ 9.69 (s, 1H), 9.28 (s, 1H), 8.15 (m, 3H), 7.74 (d, J=1.6 Hz, 1H), 7.27 (dd, J=16.0, 8.0 Hz, 1H), 7.07 (dd, J=12.4, 3.2 Hz, 2H), 6.84 (dd, J=5.6, 2.0 Hz, 1H), 2.93 (m, 4H).

1. customThe mixture was degassed
2. customby bubbling N2 through the solution
3. customThe sealed tube was then microwaved at 150° C. for 30 min
4. additionThe reaction mixture was diluted with THF/MeOH
5. filtrationfiltered
6. concentrationconcentrated
7. customto give the residue, which
8. customwas purified by silica gel column chromatography

ORD record

ord-3c965a45c56b4ddba4f835fd8164e3d0

Source dataset

uspto-grants-2014_10

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08871753B2