Compounds of formula (I): H.sub.2 N--(CH.sub.2).sub.n --A--(CH.sub.2).sub.m --O--NH.sub.2 and salts thereof are described in which the radical A is C.sub.3 -C.sub.6 cycloalkylene; n is 0 or 1 and, independently thereof, m is 0 or 1; with the provisos that a) the distance between the aminooxy radical H.sub.2 N--O-- and the amino group --NH.sub.2 is at least 3 and not more than 4 carbon atoms and that b) the two radicals H.sub.2 N--(CH.sub.2).sub.n -- and --(CH.sub.2).sub.m --O--NH.sub.2 are not bonded to the same ring carbon of A. The compounds of formula (I) and their salts are ornithine decarboxylase inhibitors.
化学式为(I)的化合物:H.sub.2 N--(CH.sub.2).sub.n --A--(CH.sub.2).sub.m --O--NH.sub.2及其盐被描述为其中基团A为C.sub.3-C.sub.6环烷基;n为0或1且独立于此,m为0或1;具有以下条件:a)
氨氧自由基H.sub.2 N--O--与
氨基--NH.sub.2之间的距离至少为3个碳原子,不超过4个碳原子;b)两个基团H.sub.2 N--(CH.sub.2).sub.n --和--(CH.sub.2).sub.m --O--NH.sub.2不与A的同一环碳原子结合。
化学式(I)的化合物及其盐是
鸟氨酸脱羧酶
抑制剂。