恶唑并[3,4-a]吡嗪衍生物的结构-活性关系研究导致发现具有强大体内活性的新型神经肽 S 受体拮抗剂
摘要:
Neuropeptide S 通过与其 G 蛋白偶联受体(称为神经肽 S 受体 (NPSR))相互作用来调节重要的神经生物学功能,包括运动、焦虑和药物滥用。 NPSR 拮抗剂可潜在用于治疗药物滥用疾病,迫切需要新的有效治疗方法。体外有效的 NPSR 拮抗剂已被发现,然而,需要进一步优化其体内药理学特性。这项工作描述了恶唑并[3,4- a ]吡嗪类的一系列新 NPSR 拮抗剂。与该领域的参考药理学工具SHA-68相比,胍衍生物16在体外表现出纳摩尔级活性,在体内效力提高了 5 倍。化合物16可以被认为是研究 NPSergic 系统转化潜力的新工具。还进行了深入的分子建模研究,以获得对观察到的结构-活性关系的新见解,并提供配体/NPSR相互作用的更新模型。
恶唑并[3,4-a]吡嗪衍生物的结构-活性关系研究导致发现具有强大体内活性的新型神经肽 S 受体拮抗剂
摘要:
Neuropeptide S 通过与其 G 蛋白偶联受体(称为神经肽 S 受体 (NPSR))相互作用来调节重要的神经生物学功能,包括运动、焦虑和药物滥用。 NPSR 拮抗剂可潜在用于治疗药物滥用疾病,迫切需要新的有效治疗方法。体外有效的 NPSR 拮抗剂已被发现,然而,需要进一步优化其体内药理学特性。这项工作描述了恶唑并[3,4- a ]吡嗪类的一系列新 NPSR 拮抗剂。与该领域的参考药理学工具SHA-68相比,胍衍生物16在体外表现出纳摩尔级活性,在体内效力提高了 5 倍。化合物16可以被认为是研究 NPSergic 系统转化潜力的新工具。还进行了深入的分子建模研究,以获得对观察到的结构-活性关系的新见解,并提供配体/NPSR相互作用的更新模型。
A facile method has been developed for the synthesis of chiral piperazines through Ir-catalyzed hydrogenation of pyrazines activated by alkyl halides, giving a wide range of chiral piperazines including 3-substituted as well as 2,3- and 3,5-disubstituted ones with up to 96% ee. The high enantioselectivity, easy scalability, and concise drug synthesis demonstrate the practical utility.
Efficient one-pot synthesis of enantiomerically pure <i>N</i>-protected-α-substituted piperazines from readily available α-amino acids
作者:Mouhamad Jida、Steven Ballet
DOI:10.1039/c7nj04039c
日期:——
A new pathway towards enantiomerically pure 3-substituted piperazines, bearing a benzyl protectinggroup, has been developed in good overall yields (83–92%), starting from commercially available N-protected aminoacids. The methodology represents an efficient and simple one-pot procedure, employing a synthetic sequence consisting of an Ugi-4 component reaction, a Boc-deprotection, an intramolecular
METHOD FOR PRODUCING OPTICALLY ACTIVE 2-ARYLPIPERAZINE DERIVATIVE
申请人:Ohnuki Masatoshi
公开号:US20100087643A1
公开(公告)日:2010-04-08
The objective of the present invention is to produce an optically active 2-arylpiperazine derivative useful as a synthetic intermediate for pharmaceutical products and agricultural chemicals from inexpensive and readily available starting material by an industrially practicable method. The objective can be accomplished by treating an optically active substituted aminodiol derivative produced from an optically active styrene oxide derivative with a sulfonating agent in the presence of a base, and then reacting an amine compound to obtain the 2-arylpiperazine derivative. Especially, an optically active 1-unsubstituted-2-arylpiperazine derivative can be produced by treating an optically active 1-allyl-2-arylpiperazine derivative with water in the presence of a transition metal catalyst for deallylation.