Hydrochloric Acid → HCID 131710306, compound

Participants

Reaction Conditions

Reaction Steps

A current of gaseous hydrogen chloride was passed through a mixture of 585 mg of the product of Step G and 12 ml of nitromethane cooled to 0° C for 15 minutes and the mixture was evaporated to dryness under reduced pressure. The residue was taken up in ether and the crystals were recovered by vacuum filtration. The residue was dissolved in 2 ml of ethanol and 1 ml of water and pyridine was added to a pH of 4. The mixture was agitated until crystallization appeared and the crystals were recovered by vacuum filtration, were rinsed with ethanol and dried to obtain 249 mg of DL cis 7-amino-3-cyclopentyl-3-cepheme-4-carboxylic acid melting at 250° C. The product occurred as colorless crystals slightly soluble in ethanol and insoluble in water and ether.

Provenance & Evidence