Reaktion #658607

Reaktionsgleichung

(S)-1-(2-methoxy-1-phenylethyl)-3-(3-(1-methyl-1H-pyrazol-4-yl)-1-trityl-1H-pyrazolo[4,3-c]pyridin-6-yl)urea

trifluoroacetic acid

triethylsilane

→

desired product

Ausbeute 28.0%

1-[(1R)-2-methoxy-1-phenylethyl]-3-[3-(1-methyl-1H-pyrazol-4-yl)-1H-pyrazolo[4,3-c]pyridin-6-yl]urea

Ausbeute 28.0%

Lösungsmittel

Dichloromethane

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigethe completion of the reaction
2. 2
   EinengenAfter concentration the residue
3. 3
   Sonstigewas purified by reverse phase HPLC

Vorschrift

To the solution of (S)-1-(2-methoxy-1-phenylethyl)-3-(3-(1-methyl-1H-pyrazol-4-yl)-1-trityl-1H-pyrazolo[4,3-c]pyridin-6-yl)urea (63.4 mg, 0.100 mmol) and trifluoroacetic acid (0.383 ml, 5.00 mmol) in Dichloromethane (2.0 ml) was added triethylsilane (17.45 mg, 0.150 mmol). The resulting mixture was allowed to stir at rt for 18 h. LC-MS showed the completion of the reaction. After concentration the residue was purified by reverse phase HPLC to provide desired product (17.3 mg, 0.028 mmol, 27.9% yield). MS ESI Calc'd for C20H21N7O2 [M+H]+ 392, found 392

Quelle