Reaktion #85020

Reaktionsgleichung

tert-butyl 4-aminobenzoate

N,N-diisopropylethylamine

T3P

2-[4-(5-chloro-2-nitrophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]propanoic acid

→

tert-Butyl 4-({2-[4-(5-chloro-2-nitrophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]propanoyl}amino)benzoate

Lösungsmittel

DMF

Reaktionsbedingungen

Aufarbeitung

1. 1
   EinengenThe reaction mixture was concentrated under reduced pressure
2. 2
   Sonstigethe residue was purified by preparative HPLC (Reprosil C18, water/acetonitrile gradient)

Vorschrift

Under argon and at RT, 25 mg (0.13 mmol) of tert-butyl 4-aminobenzoate, 44 μl (0.26 mmol) of N,N-diisopropylethylamine and 74 μl (50% strength in DMF, 0.13 mmol) of T3P were added to a solution of 30 mg (0.09 mmol) of 2-[4-(5-chloro-2-nitrophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]propanoic acid (racemate) in 2 ml of DMF, and the mixture was stirred at RT for 2 h. The reaction mixture was concentrated under reduced pressure and the residue was purified by preparative HPLC (Reprosil C18, water/acetonitrile gradient). Yield: 32 mg (71% of theory)

Quelle