反応 #89872

反応方程式

2-methylpropan-2-amine

2-methylpropan-2-amine

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-tert-butylacetamide

溶媒

DMF

CH2Cl2

反応条件

後処理

1. 1
   workup.STIRRINGthe mixture was stirred for an additional 30 minutes
2. 2
   その他The solvent was removed in vacuo
3. 3
   その他the crude product was purified
4. 4
   その他prep HPLC (25-55_90 mins)

実験手順

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 2-methylpropan-2-amine (6.7 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 2-methylpropan-2-amine 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 (25-55_90 mins) to afford 2-(3-(4-(1H-indazol-5-ylamino)quinazolin-2-yl)phenoxy)-N-tert-butylacetamide. (36 mg, 0.061 mmol, 55%).

出典