The invention relates to a quinoline of the formula: ##STR1## wherein each of R.sup.1 and R.sup.2, which may be the same or different, is hydrogen, halogeno, hydroxy, cyano, carbamoyl, nitro or amino, alkyl, alkoxy, alkylthio, alkylamino, dialkylamino or alkanoylamino each of up to 4 carbon atoms, or substituted alkyl or alkoxy each of up to 3 carbon atoms, provided that both R.sup.1 and R.sup.2 are not hydrogen; the quinoline ring may bear further substituents; R.sup.3 is hydrogen or alkyl of up to 4 carbon atoms; R.sup.4 is hydrogen, alkyl, alkenyl or alkynyl each of up to 4 carbon atoms or substituted alkyl of up to 3 carbon atoms; Ar is phenylene, naphthylene or heterocyclene which is unsubstituted or which bears one or more substituents; R.sup.5 is such that R.sup.5 --NH.sub.2 is an amino acid; or a pharmaceutically-acceptable salt or ester thereof. The compounds possess anti-tumor activity.
本发明涉及一种
喹啉化合物,其
化学式为:##STR1## 其中R.sup.1和R.sup.2各自可以是氢、卤素、羟基、
氰基、
氨基、烷基、烷氧基、烷
硫基、烷基
氨基、二烷基
氨基或烷酰胺基,每个基中的碳原子数均不超过4个,或者可以是取代的烷基或烷氧基,每个基中的碳原子数均不超过3个,但R.sup.1和R.sup.2不能同时为氢;
喹啉环上可以有进一步的取代基;R.sup.3为氢或碳原子数不超过4的烷基;R.sup.4为氢、烷基、烯基或炔基,每个基中的碳原子数均不超过4个,或者可以是取代的烷基,每个基中的碳原子数均不超过3个;Ar为苯基、
萘基或杂环基,可以是未取代的或带有一个或多个取代基;R.sup.5为使得R.sup.5 --NH.sub.2成为一种
氨基酸的基;或其药学上可接受的盐或酯。这些化合物具有抗肿瘤活性。