The invention comprises compounds of the formula: <;FORM:0790800/IV (b)/1>; wherein R and R1 are hydrocarbon, chlorine-substituted hydrocarbon, alkoxy, carbonyl, carbalkoxy-substituted hydrocarbon radicals or sulphur-containing heterocyclic radicals having between them 8 to 20 carbon atoms, X-is the anion of a therapeutically acceptable non-toxic acid and Z contains not more than 7 carbon atoms and is a carbalkoxy radical, carbamyl radical, N-dialkylcarbamyl radical, benzoyl radical, acetyl radical or hydrogen. Such compounds are obtained by quaternizing a compound of the general formula: <;FORM:0790800/IV (b)/2>; with a quaternizing agent of the general formula R1X where Z1 is a nitroso radical or an organic radical containing not more than seven carbon atoms and is a carbalkoxy, benzoyl, N-dialkylcarbamyl, carbamyl or acetyl radical, compounds wherein Z is hydrogen being prepared by the additional step of hydrolysing compounds wherein Z is a carbalkoxy radical or of hydrogenating compounds prepared from those wherein Z1 is a nitroso radical. In examples: (1) N-carbethoxy-N1-nonylpiperazine is reacted with methyl iodide to give N-carbethoxy - N1 - methyl - N1 - n - nonylpiperazinium iodide; (2) N - carbethoxy - N1 - methylpiperazine and n-dodecyl bromide are reacted to give N-carbethoxy-N1-methyl-N1-n-dodecylpiperazinium bromide; (3) N-nitroso-N1-benzylN1-methyl-piperazinium chloride is hydrogenated using a Raney nickel catalyst to give N-benzyl-N-methylpiperazinium chloride hydrochloride. In a generally similar manner to (1) there are prepared (4) N-carbethoxy-N1-allyl-N1(a - carbethoxyethyl) piperazinium bromide; (5) N - methyl - N - n - tridecylpiperazinium chloride hydrochloride; (6) N - benzoyl - N1-methyl - N1 - n - dodecylpiperazinium bromide; (7) N - dimethylcarbamyl - N1 - methyl - N1-benzylpiperazinium chloride; (8) N - carbethoxy - N1 - methyl - N1 - (2 - heptynyl) - piperazinium bromide. A list is given of similarly prepared compounds, the radicals in specific compounds being selected from (at Z) carbethoxy, carbomethoxy, benzoyl, acetyl, carbamyl, dimethylcarbamyl and hydrogen; (at R) methyl, ethyl, butyl, benzyl, phenethyl and allyl; and (at R1) heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, undecenyl, propynyl, heptynyl, benzyl, p-chlorobenzyl, 2,4-dichlorobenzyl, p-methoxybenzyl, o- and m-methylbenzyl, phenylallyl, benzoylmethyl, a - or b -thenyl, carbdodecyloxymethyl and a -carbethoxyethyl radicals. N - benzoyl - N1 - methylpiperazine and N - dimethyl - carbamyl - N1 - methylpiperazine are prepared by reaction of N-methylpiperazine with the appropriate acid chlorides.;FORM:0790800/IV>;FORM:0790800/IV>
该发明涉及公式如下的化合物:<;FORM:0790800/IV (b)/1>; 其中R和R1是烃基,氯代烃基,烷氧基,羰基,羰基烷氧基取代的烃基基团或含硫杂环基团,它们之间有8到20个碳原子,X是治疗上可接受的无毒酸的阴离子,Z含有不超过7个碳原子,是羰基烷氧基基团,氨基甲酰基基团,N-二烷基氨基甲酰基基团,苯甲酰基基团,乙酰基基团或氢。这些化合物是通过用一般式为<;FORM:0790800/IV (b)/2>;的化合物与一般式为R1X的季铵化试剂季铵化得到的,其中Z1是亚硝基基团或含不超过七个碳原子的有机基团,是羰基烷氧基基团,苯甲酰基,N-二烷基氨基甲酰基,氨基甲酰基或乙酰基基团,其中Z为氢的化合物是通过额外的水解步骤制备的,其中Z为羰基烷氧基基团或氢化由Z1为亚硝基基团制备的化合物。例如:(1)N-羧乙氧基-N1-壬基哌嗪与碘甲烷反应,得到N-羧乙氧基-N1-甲基-N1-壬基哌嗪碘化铵;(2)N-羧乙氧基-N1-甲基哌嗪和正十二溴化物反应,得到N-羧乙氧基-N1-甲基-N1-正十二基哌嗪溴化铵;(3)N-亚硝基-N1-苄基N1-甲基哌嗪盐酸盐经Raney镍催化氢化,得到N-苄基-N-甲基哌嗪盐酸盐。类似于(1)的方式制备了(4)N-羧乙氧基-N1-烯丙基-N1(a-羧乙氧基乙基)哌嗪溴化铵;(5)N-甲基-N-正十三基哌嗪盐酸盐;(6)N-苯甲酰基-N1-甲基-N1-正十二基哌嗪溴化铵;(7)N-二甲基氨基甲酰基-N1-甲基-N1-苄基哌嗪盐酸盐;(8)N-羧乙氧基-N1-甲基-N1-(2-庚炔基)-哌嗪溴化铵。列出了类似制备的化合物的列表,特定化合物中的基团从(在Z处)羧乙氧基,羰甲氧基,苯甲酰基,乙酰基,氨基甲酰基,二甲基氨基甲酰基和氢中选择;(在R处)甲基,乙基,丁基,苄基,苯乙基和烯丙基中选择;(在R1处)庚基,辛基,壬基,癸基,十一烷基,十二烷基,十三烷基,十四烷基,十五烷基,十六烷基,十一烯基,丙炔基,庚炔基,苯甲基,对氯苯甲基,2,4-二氯苯甲基,对甲氧基苯甲基,邻-和间-甲基苯甲基,苯基烯丙基,苯甲酰甲基,α-或β-烯基,羧十二氧甲基和α-羧乙氧基乙基基团中选择。通过N-苯甲酰基-N1-甲基哌嗪和N-二甲基氨基甲酰基-N1-甲基哌嗪与适当的酸氯化物反应制备N-苯甲酰基-N1-甲基哌嗪和N-二甲基氨基甲酰基-N1-甲基哌嗪。 ;FORM:0790800/IV>;FORM:0790800/IV>