Reaktion #92281

Reaktionsgleichung

DIEA

(R)-5-(2-(2-chloro-5-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-amine

CDI

3-methoxyazetidine 3-methylazetidin-3-ol hydrochloride

→

final product

Ausbeute 71.5%

(R)—N-(5-(2-(2-chloro-5-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-yl)-3-hydroxy-3-methylazetidine-1-carboxamide

Ausbeute 71.5%

Lösungsmittel

DCM

Reaktionsbedingungen

Aufarbeitung

1. 1
   workup.STIRRINGThe reaction was stirred for 5 minutes before it
2. 2
   Einengenwas concentrated
3. 3
   Sonstigedirectly purified by reverse-phase column chromatography
4. 4
   Wascheneluting with 5 to 50% acetonitrile/water

Vorschrift

To a DCM (0.8 mL) solution of (R)-5-(2-(2-chloro-5-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-amine (Example 8, Step A; 22 mg, 0.066 mmol) was added CDI (22 mg, 0.13 mmol) at ambient temperature in one portion. After stirring two hours, 3-methoxyazetidine 3-methylazetidin-3-ol hydrochloride (18 mg, 0.13 mmol) was added in one portion, followed by addition of DIEA (0.035 mL, 0.20 mmol). The reaction was stirred for 5 minutes before it was concentrated and directly purified by reverse-phase column chromatography, eluting with 5 to 50% acetonitrile/water to yield the final product as a yellowish foamy powder (21 mg, 71% yield). MS (apci) m/z=445.2 (M+H).

Quelle