Triethylamine → HCID 15614790, compound

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Reaction Steps

A mixture of 1-carboxymethyl-1,3-dihydro-3-(2-indolecarbonylamino)-5-phenyl-2H-1,4-benzodiazepin-2-one (85 mg, 0.20 mmol), pivaloyloxymethylchloride (32 μl, 0.22 mmol) and triethylamine (28 μl, 0.20 mmol) was combined in 2 ml of dry dimethylformamide and allowed to stand at room temperature for 48 hours. Solvent was removed under reduced pressure and the residue partitioned between ethyl acetate and water. Extractive work-up gave 100 mg of crude Product which was chromatographed on silica gel (CH3OH-CHCl3, 3:97 v/v elution) to give a white solid after trituration with ether: m.p. 225°-226° C.

Provenance & Evidence