Reaktion #1151344

ord-5f572ee5f7d04274ad51b491b64f7654

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    WaschenSilica gel chromatography (eluted with 3:1:1 hexane:ethyl acetate:ethanol)

Vorschrift

Preparation of example 133 from the title compound of Example 7 (hydrochloride) (46 mg, 0.147 mmol), (2R)-hydroxy(phenyl)ethanoic acid (27 mg, 0.177 mmol), triethylamine (0.061 mL, 0.44 mmol), and O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (67 mg, 0.177 mmol) in CH2Cl2 (0.4 mL) and N,N-dimethylformamide (0.4 mL) was carried out analogously to Example 11. Silica gel chromatography (eluted with 3:1:1 hexane:ethyl acetate:ethanol), also in an analogous manner, followed by two successive triturations (ethyl acetate/diethyl ether then methanol/diethyl ether) afforded the title compound (34 mg, 0.082 mmol) as a yellow powder in 56% yield.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US06967198B2uspto-grants-2005_11