O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate → HCID 58487763, compound

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Reaction Steps

57.5 μL (0.41 mmol) of TEA and 48 mg (0.15 mmol) of TBTU were added to a solution of 15.4 mg (0.14 mmol) of oxazole-5-carboxylic acid in 1.5 mL DMF and the mixture was stirred for 5 min at RT. Then 67.5 mg (0.14 mmol) of 1-amino-cyclopropanecarboxylic acid 4-(4-methoxy-2-trifluoromethyl-phenoxy)-benzylamide-trifluoroacetic acid salt (from 85a) were added and the mixture was stirred for 2 h at ambient temperature. The reaction mixture was purified by chromatography (reversed phase).

Provenance & Evidence