Synthesis and pharmacology of site specific cocaine abuse treatment agents: a new synthetic methodology for methylphenidate analogs based on the Blaise reaction
作者:H Deutsch
DOI:10.1016/s0223-5234(01)01230-2
日期:2001.4
uptake using rat striatal tissue. When the heterocyclic ring size was varied, the six-membered ring of methylphenidate appeared to be the optimum ring size. When the aryl ring was varied the 4-trifluoromethylphenyl analog was less potent than methylphenidate, the beta-naphthyl congener was considerably more potent, whereas the alpha-naphthyl congener was less potent. Most of the compounds tested had ratios
为了制备多巴胺(DA)摄取抑制剂哌醋甲酯的新类似物,开发了一种基于Blaise反应的合成方法。α-溴苯基乙酸酯,锌和α-氰基-ω-甲磺酸酯之间的反应可得到稳定的伯烯胺。用氰基硼氢化物还原烯胺后,可以将胺环化成哌醋甲酯类似物,其中胺环的大小和芳环是变化的。使用大鼠纹状体组织测试了这些化合物对[[3] H] WIN 35,428与可卡因识别位点的结合的抑制作用和[[3] H] DA的吸收。当杂环大小变化时,哌醋甲酯的六元环似乎是最佳的环大小。当芳基环发生变化时,4-三氟甲基苯基类似物的效力不及哌醋甲酯。β-萘同源物的效力明显更高,而α-萘同源物的效力更低。所测试的大多数化合物具有与可卡因相似的摄取与结合抑制之比(区分比),因此不是开发可卡因拮抗剂的先导化合物。