| 摘要 |
<p>The present invention related to a compound of the formula : <CHEM> wherein R<1> is hydrogen, isonitrile or an organic residue bonded through nitrogen ; R is hydrogen, alkyl which may be substituted, alkylthio in which sulfur atom may be oxidized or azido, or forms a double bond together with the adjacent carbon atom; provided that when R<1> is an organic residue bonded through nitrogen, R is not hydrogen; R<2> is carboxyl or a group derivable therefrom, and a salt thereof, and a method for producing the same. The Compound (I) of the present invention has, among others, an excellent anitimicrobial activity and is useful as an antimicrobial agent, etc.</p> |
