Synthesis of 6,7,8,9-tetrahydro-<i>N,N</i>-di-<i>n</i>-propyl-1<i>H</i>-benz[g] indol-7-amine, a potential dopamine receptor agonist
作者:Vassilis J. Demopoulos、Antonis Gavalas、George Rekatas、Ekaterini Tani
DOI:10.1002/jhet.5570320408
日期:1995.7
sulfonamide bond in 10 gave the target compound 1. A byproduct which was isolated was assigned to the structure of 1-(p-toluenesul-fonyl)-6-[3-[1-(p-toluenesulfonyl)]pyrrolyl]indole (11). This compound was also synthesized in good yield by an acid catalyzed dimerization of the dimethyl acetal of 1-(p-toluenesulfonyl)pyrrole-3-acetaldehyde (4). Preliminary screening of 1 indicated that it possesses central dopamine
在这项工作中,6,7,8,9-四氢-合成N,N- -di - ñ -丙基-1 ħ -苯并[克]吲哚-7-胺(1)进行说明。该化合物被设计为已知多巴胺受体激动剂5-OH-氨基四氢萘2的吲哚生物等排体。合成的关键步骤是在1-(对甲苯磺酰基)吡咯-3-乙醛的二甲基乙缩醛(4)和4-二-正丙基氨基-1-三甲基甲硅烷氧基环己烯(8)之间进行Mukaiyama型羟醛缩合得到1- p甲苯磺酰-6,7,8,9-四氢- N,N-二- ñ -丙基-1-H-苯并[ g ]吲哚-7-胺(10)。裂解10中的磺酰胺键,得到目标化合物1。将分离出的副产物分配给1-(对甲苯磺酰基-芳基)-6- [3- [1-(对甲苯磺酰基)]吡咯基]吲哚的结构(11)。该化合物还通过酸催化1-(对甲苯磺酰基)吡咯-3-乙醛的二甲基乙缩醛(4)以高收率合成。初步筛选1表明其具有中央多巴胺受体激动剂特性。