中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | CDRI-81/470 | 89791-23-1 | C19H20N6O3 | 380.406 |
甲基-N[5[[4-(2-吡啶基)-1-哌嗪基]羰基]-1H-苯并咪唑-2-基]氨基甲酸酯(CDRI-81/470)是一种广谱驱虫剂,对肠道和全身寄生虫都有效。研究了大鼠口服100mg/kg CDRI-81/470一次剂量后的组织分布和排泄。
在试验中,其中一种代谢物被鉴定为其N-脱羧衍生物,并通过合成进行了表征。开发并验证了同时估计组织、胆汁、尿液和粪便中CDRI-81/470及其N-脱羧衍生物的HPLC测定方法。在剂量后48小时内,所有主要组织和器官中的母体化合物均被定量。除血清外,CDRI-81/470的最高浓度在肝脏中发现,而在大脑中仅发现痕量水平。在剂量后120小时,大约有3%的给药剂量未经改变地从尿液中排出,而约有7%被排出在粪便中。胆汁途径对母体化合物的排泄贡献少于0.5%。在粪便(1-4%)和胆汁(<0.1%)中定量了N-脱羧衍生物,但在血清、组织和尿液中均不存在。从胆汁中分离出另一种代谢物,并被鉴定为CDRI-81/470的吡啶基-5-羟基衍生物。
CDRI-81/470在大鼠中表现出快速吸收和分布到所有主要器官和组织,并经历了广泛的代谢。通过合成鉴定了胆汁中的两种代谢物。
Methyl-N[5[[4-(2-pyridinyl)-1-piperazinyl]carbonyl]-1H-benzimidazol-2-yl] carbamate (CDRI-81/470) is a broad spectrum anthelmintic agent, effective against both intestinal and systemic parasitism. Tissue distribution and excretion of CDRI-81/470 were studied in rats after a single oral dose of 100 mg kg−1 CDRI-81/470.
One of the metabolites was identified in pilot studies as its N-decarboxylate derivative and characterized by synthesis. HPLC assay methods for the simultaneous estimation of CDRI-81/470 and its N-decarboxylate derivative in tissues, bile, urine, and faeces were developed and validated. The parent compound was quantitated in all major tissues and organs up to 48 h post-dose. Among the tissues other than serum, the highest concentrations of CDRI-81/470 were found in liver, whereas only trace levels were found in brain. Approximately 3% of the administered dose was excreted unchanged in urine at 120 h post-dose, whereas approximately 7% was recovered in faeces. The contribution of the biliary route for the excretion of parent compound was less than 0.5%. The N-decarboxylate derivative was quantitated in faeces (1–4%) and bile (< 0.1%) but was absent in serum, tissues, and urine. An additional metabolite was isolated from bile and characterized as the pyridinyl-5-hydroxy derivative of CDRI-81/470.
CDRI-81/470 showed rapid absorption and distribution into all major organs and tissues, and underwent extensive metabolism in rats. Two metabolites in bile were identified and characterized by synthesis.
甲基-N[5[[4-(2-吡啶基)-1-哌嗪基]羰基]-1H-苯并咪唑-2-基]氨基甲酸酯(CDRI-81/470)是一种广谱驱虫剂,对肠道和全身寄生虫都有效。研究了大鼠口服100mg/kg CDRI-81/470一次剂量后的组织分布和排泄。
在试验中,其中一种代谢物被鉴定为其N-脱羧衍生物,并通过合成进行了表征。开发并验证了同时估计组织、胆汁、尿液和粪便中CDRI-81/470及其N-脱羧衍生物的HPLC测定方法。在剂量后48小时内,所有主要组织和器官中的母体化合物均被定量。除血清外,CDRI-81/470的最高浓度在肝脏中发现,而在大脑中仅发现痕量水平。在剂量后120小时,大约有3%的给药剂量未经改变地从尿液中排出,而约有7%被排出在粪便中。胆汁途径对母体化合物的排泄贡献少于0.5%。在粪便(1-4%)和胆汁(<0.1%)中定量了N-脱羧衍生物,但在血清、组织和尿液中均不存在。从胆汁中分离出另一种代谢物,并被鉴定为CDRI-81/470的吡啶基-5-羟基衍生物。
CDRI-81/470在大鼠中表现出快速吸收和分布到所有主要器官和组织,并经历了广泛的代谢。通过合成鉴定了胆汁中的两种代谢物。