Synthesis of 2-(N-substituted amino)-6-hydroxy-1,2,3,4-tetrahydronaphthalen-1-ol derivatives.
作者:AKIO MIYAKE、KATSUMI ITOH、NORIO TADA、MASAO TANABE、MINORU HIRATA、YOSHIKAZU OKA
DOI:10.1248/cpb.31.2329
日期:——
trans-6-Hydroxy-2-(1-methyl-3-phenylpropyl) amino-1, 2, 3, 4-tetrahydronaphthalen-1-ol (8a), trans-6-hydroxy-2-(1-methyl-2-phenoxyethyl) amino-1, 2, 3, 4-tetrahydronaphthalen-1-ol (8b) and trans-1, 6-dihydroxy-2-(1-methyl-3-phenylpropyl) amino-1, 2, 3, 4-tetrahydronaphthalene-5-carboxamide (9a) were synthesized as a part of our search for useful cardiovascular agents. 2-(N-Substituted amino)-6-alkoxy-1, 2, 3, 4-tetrahydronaphthalen-1-ols (10-31) having various substituents at the 5-, 6- and 7-positions of the naphthalene ring were prepared by a five-step sequence of reactions starting from 3, 4-dihydro-1 (2H)-naphthalenone derivatives (36). Furthermore 2-(N-substituted amino)-1-indanol derivatives (33) and 6-(N-substituted amino)-2-hydroxy-6, 7, 8, 9-tetrahydro-5H-benzocyclohepten-5-ols (34, 35) were obtained by the reductive alkylation of the corresponding amino alcohols with carbonyl compounds. These N-substituted amino alcohols (8-35) were tested for vasodilating activity in anesthetized dogs and for β-blocking activity using isolated guinea pig atrial preparations.
trans-6-羟基-2-(1-甲基-3-苯基丙基)氨基-1,2,3,4-四氢萘-1-醇(8a)、trans-6-羟基-2-(1-甲基-2-苯氧乙基)氨基-1,2,3,4-四氢萘-1-醇(8b)和trans-1,6-二羟基-2-(1-甲基-3-苯基丙基)氨基-1,2,3,4-四氢萘-5-羧酰胺(9a)作为我们寻找有用的心血管药物的一部分被合成。通过从3,4-二氢-1(2H)-萘满酮衍生物(36)开始,经过五步反应序列,制备了在萘环的5-、6-和7-位具有各种取代基的2-(N-取代氨基)-6-烷氧基-1,2,3,4-四氢萘-1-醇(10-31)。此外,2-(N-取代氨基)-1-茚醇衍生物(33)和6-(N-取代氨基)-2-羟基-6,7,8,9-四氢-5H-苯并环庚烯-5-醇(34,35)是通过相应的氨基醇与羰基化合物的还原烷基化获得的。这些N-取代的氨基醇(8-35)在麻醉犬中测试了其血管舒张活性,并在离体的豚鼠心房制备中测试了其β-阻断活性。