Ethanol → HCID 58557468, Verbindung

Temperatur

150 °C

A mixture of (1S,3R,4S)-3-ethyl-4-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)cyclopentanamine (0.20 g, 0.47 mmol), EtOH (1.3 mL), DIEA (0.33 mL, 1.88 mmol), and 2-chlorothiazole-5-carbonitrile (0.082 g, 0.56 mmol, Ark Pharm) was heated in a CEM microwave at about 150° C. for about 30 min (250 psi maximum pressure, 5 min maximum ramp, 300 maximum watts). The reaction mixture was cooled to ambient temperature and concd under reduced pressure. The crude oil was dissolved in DCM (10 mL) and washed with water (2×10 mL). The organic layer was dried over anhydrous MgSO4, filtered, and concd under reduced pressure. The crude mixture was purified by silica gel chromatography eluting with a gradient of 0-70% EtOAc in DCM to give 2-((1S,3R,4S)-3-ethyl-4-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)cyclopentylamino)thiazole-5-carbonitrile (0.21 g, 84%): LC/MS (Table 1, Method c) Rt=1.53 min; MS m/z: 533 (M+H)+.

1. temperatureThe reaction mixture was cooled to ambient temperature
2. washwashed with water (2×10 mL)
3. dry with materialThe organic layer was dried over anhydrous MgSO4
4. filtrationfiltered
5. customThe crude mixture was purified by silica gel chromatography
6. washeluting with a gradient of 0-70% EtOAc in DCM

ORD-Eintrag

ord-45c875916e384ed8bc04f8fa746ebb93

Quelldatensatz

uspto-grants-2013_04

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08426411B2