Hydrochloric Acid → (R)-2-(3-(Aminomethyl)-6-(5-cyclopropyl-1H-pyrazol-3-ylamino)-5-fluoropyridin-2-ylamino)-2-(4-fluorophenyl)ethanol

The mixture of (R)-6-(5-cyclopropyl-1H-pyrazol-3-ylamino)-5-fluoro-2-(1-(4-fluorophenyl)-2-hydroxyethylamino)nicotinonitrile (Example 6; 0.13 g, 0.33 mmol), conc. HCl (0.1 ml), and Pd (10 wt. %, dry basis, on activated carbon, 0.12 g) in MeOH (5 ml) was flushed with N2, evacuated, and then placed under H2 (40 psi) for 6 hrs. The reaction was then evacuated, flushed with N2, filtered, washed with MeOH (3×30 ml), and concentrated. The resulting solid was dissolved in the mixture of DCM-MeOH (50:1, 100 ml), and a saturated aqueous solution of Na2CO3 (100 ml) was added. The mixture was shaken vigorously for 30 min and allowed to separate. The aqueous layer was extracted with DCM (3×100 ml). The combined organic layer was dried, filtered and concentrated. The resulting solid was purified by reverse-phase column chromatography (5-50% CH3CN in H2O over 400 ml) to give the title compound (0.074, 57%). 1H NMR (400 MHz, CD3OD) δ 7.45-7.42 (m, 2H), 7.17 (d, J=11.1 Hz, 1H), 7.04-7.00 (m, 2H), 5.72 (br s, 1H), 5.18-5.08 (m, 1H), 3.89-3.72 (m, 4H), 1.87-1.83 (m, 1H), 0.94-0.92 (m, 2H), 0.69-0.65 (m, 2H). MS: Calcd.: 400. Found: [M+H]+401.

1. customwas flushed with N2
2. customevacuated
3. customThe reaction was then evacuated
4. customflushed with N2
5. filtrationfiltered
6. washwashed with MeOH (3×30 ml)
7. concentrationconcentrated
8. dissolutionThe resulting solid was dissolved in the mixture of DCM-MeOH (50:1, 100 ml)
9. additiona saturated aqueous solution of Na2CO3 (100 ml) was added
10. customto separate
11. extractionThe aqueous layer was extracted with DCM (3×100 ml)
12. customThe combined organic layer was dried
13. filtrationfiltered
14. concentrationconcentrated
15. customThe resulting solid was purified by reverse-phase column chromatography (5-50% CH3CN in H2O over 400 ml)

ORD 기록

ord-47e924dd017f4560aff817ae86fbd7a3

출처 데이터셋

uspto-grants-2014_09

DOI

10.6084/m9.figshare.5104873.v1

특허 번호

US08835465B2