Photochemical syntheses of apogalanthamine analogs as .ALPHA.-adrenergic blocking agents.
作者:MASARU KIHARA、SHIGERU KOBAYASHI
DOI:10.1248/cpb.26.155
日期:——
The apogalanthamine analogs, 10, 11-methylenedioxy- and 10, 11-dimethoxy-5, 6, 7, 8-tetrahydrodibenz [c, e] azocines (1 and 2, respectively) as α-adrenergic blocking agents were synthesized by photolysis of N-benzyl-2-iodo-4, 5-methylenedioxy- and N-benzyl-2-iodo-4, 5-dimethoxy-β-phenethylamine (20 and 21, respectively). 2, 3-Methylenedioxy-, and 2, 3-dimethoxy-5, 6, 7, 8-tetrahydrodibenz [c, e] azocine (9 and 10, respectively) were obtained similarly from N-(2-iodo-4, 5-methylenedioxybenzyl)- and N-(4, 5-dimethoxy-2-iodobenzyl)-β-phenethylamine (18 and 19, respectively). The yields of 9 and 10 from the iodo-amines (18 and 19) having an iodine atom in the benzyl group were found to be better than those of 1 and 2 from iodides 20 and 21 respectively having a halogen atom in the phenethyl group.
合成了作为α-肾上腺素拮抗剂的阿波伽兰他敏类似物,分别为10, 11-亚甲基二氧基和10, 11-二甲氧基-5, 6, 7, 8-四氢二苯并[c, e]唑啉(1和2)。通过光解N-苄基-2-碘-4, 5-亚甲基二氧基和N-苄基-2-碘-4, 5-二甲氧基-β-苯乙胺(20和21)合成而成。2, 3-亚甲基二氧基和2, 3-二甲氧基-5, 6, 7, 8-四氢二苯并[c, e]唑啉(9和10)也通过类似的方式从N-(2-碘-4, 5-亚甲基二氧基苄基)-和N-(4, 5-二甲氧基-2-碘苄基)-β-苯乙胺(18和19)中获得。发现从含有苄基上的碘原子的碘胺(18和19)得到的9和10的产率优于从含有苯乙基上的卤素原子的碘化物(20和21)得到的1和2。