首页> 外文期刊>European Journal of Medicinal Chemistry: Chimie Therapeutique >Synthesis and pharmacology of site specific cocaine abuse treatment agents: a new synthetic methodology for methylphenidate analogs based on the Blaise reaction.
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Synthesis and pharmacology of site specific cocaine abuse treatment agents: a new synthetic methodology for methylphenidate analogs based on the Blaise reaction.

机译:特定部位可卡因滥用治疗剂的合成和药理作用:一种基于Blaise反应的哌醋甲酯类似物的新合成方法。

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摘要

In order to make new analogs of the dopamine (DA) uptake inhibitor methylphenidate, a synthetic methodology based on the Blaise reaction was developed. The reaction between alpha-bromophenylacetic acid esters, zinc and alpha-cyano-omega-mesylates gave stable primary enamines. After reduction of the enamines with cyanoborohydride, the amines could be cyclized to methylphenidate analogs in which the amine ring size and aromatic ring were varied. These compounds were tested for inhibitory potency against [3H]WIN 35,428 binding to the cocaine recognition site and [3H]DA 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 of uptake to binding inhibition (discrimination ratio) that were similar to cocaine and were therefore not lead compounds for the development of cocaine antagonists.
机译: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,可将胺环化成哌醋甲酯类似物,其中胺环的大小和芳环均发生变化。使用大鼠纹状体组织测试了这些化合物对[3H] WIN 35,428与可卡因识别位点结合的抑制作用和[3H] DA摄取。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。当改变芳基环时,4-三氟甲基苯基类似物的效力不及哌醋甲酯,β-萘基同源物的效力明显更高,而α-萘基同源物的效力较低。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。

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