Synthesis, resolution and radioiodination of S(−)trans-5-hydroxy-2-[N-n-propyl-N-(3′-iodo-2′-propenyl)amino]tetralin-S(−)trans-5-OH-PIPAT: A new dopamine D2-like receptor ligand
作者:Sumalee Chumpradit、Mei-Ping Kung、Janet Vessotskie、Hank F. Kung
DOI:10.1002/jlcr.2580361105
日期:1995.11
A new dopamine D2-like receptor ligand, (R,S)trans-5-hydroxy-2-[N-n-propyl-N-(3'-iodo-2'-propenyl)amino]tetralin ((R,S)trans-5-OH-PIPAT, 3), based on high affinity dopamine receptor agonist 5-hydroxy-2-[N,N-(di-n-propyl)-2-amino]tetralin (5-OH-DPAT, 1), was prepared. The synthesis was achieved by a reductive animation of 5-methoxy-2-tetralone with n-propylamine, followed by N-alkylation, to afford
一种新的多巴胺 D2 样受体配体,(R,S)trans-5-hydroxy-2-[Nn-丙基-N-(3'-iodo-2'-propenyl)amino]tetralin ((R,S)trans -5-OH-PIPAT, 3),基于高亲和力多巴胺受体激动剂 5-羟基-2-[N,N-(二正丙基)-2-氨基]萘满 (5-OH-DPAT, 1) ,准备好了。该合成是通过 5-甲氧基-2-四氢萘酮与正丙胺的还原胺化,然后进行 N-烷基化,得到 5-甲氧基-N-丙基-N-2'-丙炔基-2-氨基四氢萘,7。用三丁基氢化锡还原 7 得到三正丁基锡衍生物 8,通过碘脱金属反应将其转化为 9。9 的去甲基化得到所需的化合物,(R,S)trans-5-OH-PIPAT, 3。解析的 (R) 和 (S)trans-5-OH-PIPAT, 3 也被定量制备。体外结合研究表明,这种新化合物具有立体选择性,可与多巴胺 D2