Reaktion #89874

Reaktionsgleichung

cyclobutanamine

cyclobutanamine

DIEA

PyBOP

2-(3-(4-(1H-indazol-5-ylamino)quinazolin-2-yl)phenoxy)acetic acid

PyBOP

DIEA

→

2-(3-(4-(1H-indazol-5-ylamino)quinazolin-2-yl)phenoxy)-N-cyclobutylacetamide

Lösungsmittel

DMF

CH2Cl2

Reaktionsbedingungen

Aufarbeitung

1. 1
   workup.STIRRINGthe mixture was stirred for an additional 30 minutes
2. 2
   SonstigeThe solvent was removed in vacuo
3. 3
   Sonstigethe crude product was purified
4. 4
   Sonstigeprep HPLC (25-50_90 mins)

Vorschrift

A suspension of 2-(3-(4-(1H-indazol-5-ylamino)quinazolin-2-yl)phenoxy)acetic acid (70 mg, 0.14 mmol), PyBOP® (40 mg, 0.077 mmol), DIEA (24 μL, 0.14 mmol) in dry CH2Cl2:DMF (2:0.1 mL) was stirred at RT for 15 minutes. To this solution of activated acid was added cyclobutanamine (6.5 mg, 0.091 mmol). After 30 minutes, 1.0 equivalent of DIEA and 0.55 equivalents of PyBOP® were added. After stirring the solution for 15 minutes, 0.65 equivalents of cyclobutanamine were added and the mixture was stirred for an additional 30 minutes. The solvent was removed in vacuo and the crude product was purified using prep HPLC (25-50_90 mins) to afford 2-(3-(4-(1H-indazol-5-ylamino)quinazolin-2-yl)phenoxy)-N-cyclobutylacetamide. (36 mg, 0.077 mmol, 55%).

Quelle