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基本信息
斯利潘托
司替茂醇/斯利潘托
司替戊醇/斯利潘托
Diacomit
RCX-2600
STIRIPENTOL
1-(1,3-BENZODIOXOL-5YL)-4,4-DIMETHYL-1-PENTEN-3-OL
1-(1,3-benzodioxol-5-yl)-4,4-dimethyl-1-penten-3-o
1-PENTEN-3-OL, 1-(1,3-BENZODIOXOL-5-YL)-4,4-DIMETHYL-
4,4-dimethyl-1-(3,4-methylenedioxyphenyl)-1-penten-3-o
4,4-dimethyl-1-(3,4-methylenedioxyphenyl)-1-penten-3-ol
1-(Benzo[d][1,3]dioxol-5-yl)-4,4-dimethylpent-1-en-3-ol
物理化学性质
常见问题列表
司替戊醇(斯利潘托)的作用机制比较独特,既可以增加GABA释放,又可以抑制某些酶的活性、从而提高其他抗癫痫药的血药浓度。司替戊醇(斯利潘托)于2001 年在欧盟获得批准,用于辅助治疗严重的婴儿型癫痫肌阵挛发作。
司替戊醇(斯利潘托)治疗的不良反应主要是由其对其他药物的增效作用所导致的,与丙戊酸钠合用可能会增加丙戊酸钠的恶心和呕吐发生率。
一种司替戊醇(斯利潘托)的制备方法,包括以下步骤:
(1)将120g胡椒醛投入0.2L乙醇与2.4L蒸馏水的混合溶剂中,加入160g固体NaOH、2.6g苄基三丁基氯化铵和120g甲基叔丁酮,于40℃搅拌反应。TLC检测反应(展开剂:石油醚‑乙酸乙酯(6:1)),16h后反应完全。将反应液冷却至室温,减压抽滤,滤饼用0.12L无水乙醇进行重结晶,干燥,得到黄色针状结晶4,4‑二甲基‑1‑[(3,4‑亚甲二氧基)‑苯基]‑1‑戊烯‑3‑酮(172.5g,93.2%),m.p. 93.7~95.1℃。ESI‑MS(m/z): 233.1[M+H]+,255.1[M+Na]+。
(2)将步骤(1)得到的4,4‑二甲基‑1‑[(3,4‑亚甲二氧基)‑苯基]‑1‑戊烯‑3‑酮投入0.8L乙醇中,在25~40℃搅拌下,10分钟内分批加入硼氢化钠14.8g,分批加入硼氢化钠可以避免局部浓度过高造成的反应不均匀,再加入0.08L丙酮和0.12L蒸馏水,50℃下搅拌5分钟,有气泡产生,待气泡消失后,继续加水,有固体析出,待固体析出完全后,冷却至室温,减压抽滤,滤饼用0.15L无水乙醇进行重结晶,干燥,得到白色晶体司替戊醇(斯利潘托)共(91.1g,93.7%)。
IC50: 1.58 μM (CYP3A4), 3.29 μM (CYP2C19)
Ki: 1.59±0.07μM (CYP3A4), 0.516±0.065 μM (CYP2C19)
Stiripentol (STP) is an anticonvulsant agent, which can inhibit N-demethylation of CLB to N-desmethylclobazam (NCLB) mediated by CYP3A4 (noncompetitively) and CYP2C19 (competitively). The inhibition of CLB demethylation by Stiripentol (STP) is best described by a noncompetitive inhibition model with apparent K i =1.6 μM for the cDNA-expressing CYP3A4 and by a competitive inhibition model with K i =0.52 μM for the cDNA-expressing CYP2C19. Formation of OH-NCLB from NCLB by cDNA-expressing CYP2C19 is competitively inhibited by Stiripentol (STP) with a K i =0.14 μM.
In mice treating with Stiripentol (STP) monotherapy, the difference between BT 1 (39.67±1.09°C) and BT 2 (41.32±1.05°C) reaches statistical significance (t=3.097, p<0.05). The difference in BT 2 between Stiripentol (STP) monotherapy and CLB monotherapy is statistically significant (t=2.615, p<0.05). In mice treating with Stiripentol (STP)+CLB combination therapy, the difference between BT 1 (40.18±0.58°C) and BT 2 (43.03±0.49°C) reaches statistical significance (t=10.44, p<0.01).