代谢
通过胃管给大鼠单次给药20 mg/kg的甲氧基丙胺(mephedrone),并在给药后24小时内收集尿液。除了甲氧基丙胺外,还检测到以下代谢物:去甲甲氧基丙胺、去甲二氢甲氧基丙胺、羟基甲氧基甲氧基丙胺和去甲羟基甲氧基丙胺。在一个由甲氧基丙胺使用者提交的人类尿样中,还检测到了另一种代谢物,4-羧基-二氢甲氧基丙胺。/据/推测,被认为是这些代谢物来源的重叠代谢途径如下:N-脱甲基成为初级胺(代谢物去甲甲氧基丙胺、去甲二氢甲氧基丙胺和去甲羟基甲氧基丙胺);将酮基还原为相应的醇(代谢物去甲二氢甲氧基丙胺和4-羧基-二氢甲氧基丙胺);将甲苯基氧化为相应的醇(代谢物羟基甲氧基甲氧基丙胺和去甲羟基甲氧基丙胺)。认为羟基甲氧基甲氧基丙胺和去甲羟基甲氧基丙胺代谢物部分以葡萄糖苷酸和硫酸盐的形式排出。
Rats administered a single 20 mg/kg dose of mephedrone by gastric intubation and urine was collected over a 24-hour period after mephedrone administration. In addition to mephedrone, the following metabolites were detected: nor-mephedrone, nor-dihydro mephedrone, hydroxytolyl mephedrone and nor-hydroxytolyl mephedrone. In a human urine sample submitted by a mephedrone user, a further metabolite, 4-carboxy-dihydro mephedrone was also detected. /It was/ postulated that the overlapping metabolic pathways that were thought to be responsible for these metabolites were as follows: N-demethylation to the primary amine (metabolites nor-mephedrone, nor-dihydro mephedrone and nor-hydroxytolyl mephedrone); reduction of the keto moiety to the respective alcohol (metabolites nordihydro mephedrone and 4-carboxy-dihydro mephedrone); oxidation of the tolyl moiety to the corresponding alcohol (metabolites hydroxytolyl mephedrone and nor-hydroxytolyl mephedrone). It is thought that the hydroxytolyl mephedrone and nor-hydroxytolyl mephedrone metabolites are partly excreted as glucuronides and sulfates.
来源:Hazardous Substances Data Bank (HSDB)