Mono- and di-quaternary salts of pyrimidylaminoquinolines having trypanocidal activity are made by reacting a quaternary salt of pyrimidine substituted in the 2-, 4- (or 6-) positions by amino or lower alkylamino-groups, in another of the 2-, 4- (or 6-) positions by a lower alkyl-, amino-, or lower alkylamino-group, and in one of the remaining 2-, 4- (or 6-) groups by a halogen atom or -SR group, R being hydrocarbon, with an amino-quinoline, substituted in the 4-position by amino-, or lower alkylamino, and which may be further substituted by lower alkyl groups, or with a quaternary salt thereof, in presence of an acid with or without a liquid medium. The amino-quinoline may be in the form of a salt thereof, or in the form of substances which will give rise to it under the reaction conditions. The products must contain at least an alkylamino-substituent in the pyrimidine nucleus or in 4-position of the quinoline nucleus. In examples, the quaternary salts of aminopyrimidines substituted by chlorine, bromine or iodine or thioalkyl in the 2- or 4-position, and with other groups as defined, are treated with 4- or 6-aminoquinolines having other substituents as defined above, or with their acetyl derivatives or quaternary salts, to give the mono- or di-salts of the corresponding pyrimidylaminoquinolines, in which the-NH-group is attached at the 2-, 4-, or 6-positions of the pyrimidine nucleus and the 6-positions of the quinoline nucleus, and the alkyl groups may be methyl, ethyl, isopropyl and butyl. The products include 4-alkylamino- or amino-6-(21-amino- or alkylamino-61-alkyl- or amino-pyrimidyl-41-amino)-methyl quinoline-dimethiodides, dimethochlorides, &c., and the corresponding quinolines. 4 - Alkylamino 6 - acetyl - aminoquinaldines are obtained by the action of alkylamines on the 4-chloro-compound and may be hydrolysed and quaternated; the corresponding methylaminequinoline derivative is obtained by hydrolysis of 4-hydroxy-6-acetylamino-quinoline with POCl3 to give the 2-chloro derivative, and condensation with methylamine, and may be quaternated. Specifications 658,202 and 658,204 are referred to.
制备具有抗锥虫活性的
嘧啶基
氨基
喹啉的单和双季
铵盐,通过将2-、4-(或6-)位置取代
氨基或较低烷基
氨基基团的
嘧啶季
铵盐与2-、4-(或6-)位置中的较低烷基、
氨基或较低烷基
氨基基团以及剩余的2-、4-(或6-)位置中的卤素原子或-SR基(R为碳氢)取代的
氨基
喹啉或其季
铵盐在酸性介质中或无液体介质的情况下反应制得。
氨基
喹啉可以是其盐的形式,或者是在反应条件下会产生其形式的物质。产品必须至少含有
嘧啶核或
喹啉核4-位置的烷基
氨基取代基。例如,用
氯、
溴或
碘或
硫代烷基在2-或4-位置取代的
氨基嘧啶季
铵盐,以及具有上述其他取代基的4-或
6-氨基喹啉或其乙酰衍
生物或季
铵盐进行反应,制备相应的
嘧啶基
氨基
喹啉的单或双季
铵盐,其中-NH基团附在
嘧啶核的2-、4-或6-位置和
喹啉核的6-位置,烷基可以是甲基、乙基、异丙基和丁基。产品包括4-烷基
氨基或
氨基-6-(2-
氨基或烷基
氨基-6-烷基或
氨基-
嘧啶基-4-
氨基)-甲基
喹啉二甲
硫醇盐、二甲
氯化物等,以及相应的
喹啉。通过在4-
氯化合物上作用烷基胺得到4-烷基
氨基-6-乙酰
氨基
喹啉,可以
水解和季
铵化;通过将
4-羟基-6-乙酰
氨基
喹啉与POCl3
水解以得到2-
氯衍
生物,再与甲基胺缩合,可以得到相应的
甲胺喹啉衍
生物,并可以季
铵化。参考规范658,202和658,204。