Trifluoroacetic acid → HCID 131715844, compound

Participants

Reaction Steps

At room temperature, 2.29 g (4 mmol) of (S)-[1-[[[[2-(2-bromo-4,5-dihydroxybenzoyl)hydrazino]sulfonyl]amino]carbonyl]-2-oxoazetidinyl]carbamic acid, phenylmethyl ester was added to a mixture of 4.5 ml of trifluoroacetic acid and 1.6 g of thioanisole. After stirring overnight, 50 ml of ether was added and the resulting crystals were filtered off by suction, dried and triturated with 40 ml of dichloromethane. The crystals were filtered off again and dried in vacuo; yield: 1.9 g, melting point 157° C.

Provenance & Evidence