Biologically Active Compounds through Catalysis: Efficient Synthesis ofN-(Heteroarylcarbonyl)-N′-(arylalkyl)piperazines
作者:Kamal Kumar、Dirk Michalik、Ivette Garcia Castro、Annegret Tillack、Alexander Zapf、Michael Arlt、Timo Heinrich、Henning Böttcher、Matthias Beller
DOI:10.1002/chem.200305327
日期:2004.2.6
practical route for the synthesis of new biologically active 5-HT(2 A) receptor antagonists has been developed. In only three catalytic steps, this class of central nervous system (CNS) active compounds can be synthesized efficiently with high diversity. As the initial step, an anti-Markovnikov addition of amines to styrenes provides an easy route to N-(arylalkyl)piperazines, which constitute the core structure
已经开发了一种合成新的具有生物活性的5-HT(2 A)受体拮抗剂的实用途径。在仅三个催化步骤中,这类中枢神经系统(CNS)活性化合物可以高效,高度多样性地合成。作为第一步,胺向苯乙烯的反马尔科夫尼科夫加成法提供了一条通往N-(芳基烷基)哌嗪的简便方法,后者构成了活性分子的核心结构。在此,即使在室温下,苯乙烯与苄基哌嗪的碱催化的加氢胺化反应也以高收率进行。催化脱苄基作用后,游离胺已成功地用不同的芳族和杂芳族卤化物和一氧化碳进行羰基化,以良好或优异的收率得到所需化合物。两个关键的反应,