A caprazene-1"-amide derivative and its 5"-N-alkoxycarbonyl or aralkyloxycarbonyl derivative which are represented by the following general formula (II)wherein Me is methyl group, R1 is a straight chain or a substantially straight chain alkyl group of 5-21 carbon atoms, a straight chain or a substantially straight chain alkenyl group of 5-21 carbon atoms or a cycloalkyl group of 5-12 carbon atoms, or R1 is a phenyl group having a straight chain alkyl group of 1-14 carbon atoms or a straight chain alkoxy group of 1-9 carbon atoms or a cycloalkyl group of 5-12 carbon atoms at the para-position of the phenyl group, A is hydrogen atom or A is an amino-protecting group including an alkoxycarbonyl group, particularly tert-butoxycarbonyl group, or an aralkyloxycarbonyl group, particularly benzyloxycarbonyl group, or a pharmaceutically acceptable acid addition salt thereof
