HCID 67725500, compound → HCID 67725509, compound

Participants

Reaction Steps

11.34 g of ethyl 4-[4-(aminoiminomethyl)benzyl]-3,3-bisethoxycarbonylbutyrate hydrochloride are stirred in 250 ml of 6N HCl at 40° C. for 1 h and at 80° C. for 2 h. The mixture is then allowed to stand overnight at room temperature and is concentrated to dryness in vacuo. The residue is taken up in a little water and freeze-dried.

Provenance & Evidence