(-)-Glycidol → {4-[4-((2R)-2,3-Dihydroxypropylamino)phenyl]butyl}carbamic acid benzyl ester

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

A solution of (S)-(−)-glycidol (0.16 mL, 2.3 mmol) in ethanol (5 mL) was added dropwise to a stirring solution of N-[4-(4-aminophenyl)butyl]carbamic acid benzyl ester (0.59 g, 1.97 mmol) in ethanol (15 mL) at 70° C. The reaction mixture was stirred at 70° C. (oil bath) overnight. The solvent was removed under reduced pressure and the residue was purified by Flash™ (BIOTAGE, Inc) (90 g silica gel cartridge 40M, chloroform/methanol/ammonium hydroxide, 15:1:0.1, v/v) to give 700 (0.29 g, 40%) as a white solid. 1H NMR (300 MHz, CD3OD) δ 1.51 (m, 4H), 2.48 (t, 2H), 3.07 (m, 1H), 3.26 (t, 2H), 3.30 (m, 1 if), 3.57 (m, 2H), 3.80 (m, 1H), 5.00 (s, 2H), 6.59 (d, 2H), 6.99 (d, 2H), 7.33 (m, 5H). m/z (ESI) 373 [C21H28N2O4+H]+.

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