作者:Mohamed A. Ismail、Reto Brun、Judy D. Easterbrook、Farial A. Tanious、W. David Wilson、David W. Boykin
DOI:10.1021/jm0302602
日期:2003.10.1
6-[5-(4-Amidinophenyl)furan-2-yl]nicotinamidine (8a) was synthesized from 6-[5-(4-cyanophenyl)furan-2-yl]nicotinonitrile (4a), through the bis-O-acetoxyamidoxime followed by hydrogenation. Compound 4a was prepared via selective bromination of 6-(furan-2-yl)nicotinonitrile (2a) with N-bromosuccinimide, followed by Suzuki coupling with 4-cyanophenylboronic acid. In a similar way, diamidines 8b and 8c
由6- [5-(4-氰基苯基)呋喃-2-基]烟腈(4a)通过双-O-合成6- [5-(4-A氨基苯基)呋喃-2-基]烟酰胺(8a)。乙酰氧基ami肟,然后氢化。通过用N-溴代琥珀酰亚胺对6-(呋喃-2-基)烟腈(2a)进行选择性溴化,然后与4-氰基苯基硼酸进行Suzuki偶联,来制备化合物4a。以类似的方式,分别由二氰基衍生物4c和4d制备二am8b和8c。N-甲氧基-6- [5- [4-(N-甲氧基ami基)苯基]-呋喃-2-基]-烟酰胺(6a)是通过用二甲基硫酸甲酯将二胺肟5a甲基化而制备的。前药6b和6c也通过各自的二mid肟5b和5d的甲基化制备。通过相应的双-O-乙酰氧基酰胺肟合成对称的二am14a,b,然后氢化。通过在2,5-双(三正丁基锡烷基)呋喃与相应的杂芳基卤化物之间进行Stille偶联,可以方便地获得关键化合物11a,b。这些化合物已在体外评估了对罗氏锥虫(T. br)和恶性疟原虫(P