In accordance with the ideas expressed in the previous report (cf. Report III), the authors chose 2-(5-nitro)-furoic acid and 2-(5-nitro)-furylacrylic acid for condensation with 12 kinds of amines. As a result of bacterial tests with the new compounds obtained, 2-(5-nitro)-furylacrylylamide showed in vitro effect of about the same degree as that of 2-(5-nitro)-furaldehyde semicabrazone reported earlier by Gilman.
