申请人:National Research Development Corporation
公开号:US05132327A1
公开(公告)日:1992-07-21
Compounds of formula (I) ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each separately selected from hydrogen, X, NH--A--NHR and NH--A--N(O)R'R" wherein X is hydroxy, halogeno, amino, C.sub.1-4 alkoxy or C.sub.2-8 alkanoyloxy, A is a C.sub.2-4 alkylene group with a chain length between NH and NHR or N(O)R'R" of at least 2 carbon atoms and R, R' and R" are each separately selected from C.sub.1-4 alkyl groups and C.sub.2-4 hydroxyalkyl and C.sub.2-4 dihydroxyalkyl groups in which the carbon atom attached to the nitrogen atom does not carry a hydroxy group and no carbon atom is substituted by two hydroxy groups, or R' and R" together are a C.sub.2-6 alkylene group which with the nitrogen atom to which R" and R" are attached forms a heterocyclic group having 3 to 7 atoms in the ring, but with the proviso that at least one of R.sub.1 to R.sub.4 is a group NH--A--N(O)R'R", and physiologically acceptable salts thereof are of value in the treatment of cancer.
式(I)的化合物##STR1##中,其中R.sub.1、R.sub.2、R.sub.3和R.sub.4分别从氢、X、NH--A--NHR和NH--A--N(O)R'R"中选择,其中X是羟基、卤素、氨基、C.sub.1-4烷氧基或C.sub.2-8烷酰氧基,A是一个C.sub.2-4烷基链,其链长在NH和NHR或N(O)R'R"之间至少为2个碳原子,R、R'和R"分别从C.sub.1-4烷基和C.sub.2-4羟基烷基和C.sub.2-4二羟基烷基中选择,其中连接到氮原子的碳原子不带有羟基,也没有碳原子被两个羟基取代,或者R'和R"一起是一个C.sub.2-6烷基链,与R"和R"连接的氮原子形成一个含有3至7个原子的环的杂环基团,但至少R.sub.1到R.sub.4中的一个是NH--A--N(O)R'R"基团,其生理上可接受的盐在癌症治疗中具有价值。