Hydrochloric Acid → HCID 178432513, Verbindung

Beteiligte Stoffe

Reaktionsschritte

To a 20 mL scintillation vial, N-(2-chloro-5-(3-(2-methyl-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-6-yl)-5-(1-morpholinoethyl)pyridin-2-ylamino)pyridin-3-yl)methanesulfonamide (0.165 g, 0.263 mmol) and 5N hydrochloric acid (0.5 mL, 2.5 mmol) were mixed into THF (3 mL). The solution was stirred at room temperature for 30 min. 10 mL of buffer (pH 5, citric acid/NaOH) was added and the pH was further adjusted to about 5 by adding a few drops of 6N NaOH. The aqueous phase was extracted with 10% isopropanol in chloroform (3×20 mL). The combined organic phases were dried over sodium sulfate, filtered and concentrated in vacuo. The crude product was purified by preparative HPLC using a Phenomenex, Gemni 5 micron C18 100×30 mm column (1% to 90% CH3CN w/0.1% TFA/H2O w/0.1% TFA in 10 min). The corresponding fractions were collected and concentrated down to dryness. The residue was treated with about 5 mL of pH 5 buffer and pH 7 buffer were added to adjust pH to about 6. The aqueous phase was extracted with 10% isopropanol in chloroform (3×20 mL). The combined organic phases were dried over sodium sulfate, filtered and concentrated in vacuo to afford 0.101 g of yellow solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 13.65 (br. s., 1H) 13.11 (br. s., 1H) 9.82 (br. s., 1H) 9.68 (br. s., 1H) 8.71 (d, J=1.96 Hz, 1H) 8.66 (s, 1H) 8.53 (s, 1H) 8.34 (d, J=1.17 Hz, 1H) 3.50-3.67 (m, 5H) 3.15 (s, 3H) 2.88 (s, 3H) 2.35-2.46 (m, 2H) 1.42 (d, J=6.65 Hz, 3H). Note: 2 protons were buried under DMSO peak and could not be integrated. m/z (ESI, positive ion): 544.0 (M+H)+.

Herkunft & Nachweise