作者:Piotr Balczewski、M. Kieran J. Mallon、Jonathan D. Street、John A. Joule
DOI:10.1039/p19900003193
日期:——
aldehyde 3r and then condensed with nitromethane using alumina as base to give the alcohol 3s, dehydration of which produced the nitroethene 3t. Iron-acetic acid treatment of compound 3t produced aaptamine 1a. Isoquinoline-1 -carbaldehydes 3q and r reacted with ammonium acetate to produce imidazo[5,1-a]isoquinolines 6a and 6b. 1 -Lithiomethyl-6,7-dimethoxyisoquinoline reacted with ethyl chloroformate
将6,7-甲氧基-1-甲基异喹啉3a在C-8处硝化,氧化成硝基醛3r,然后使用氧化铝作为碱与硝基甲烷缩合,得到醇3s,将其脱水生成硝基乙烯3t。化合物3t的铁-乙酸处理产生了aptapamine 1a。异喹啉-1-甲醛3q和r与乙酸铵反应生成咪唑并[5,1- a ]异喹啉6a和6b。1-Lithiomethyl-6,7-dimethoxyisoquinoline与氯甲酸乙酯反应生成酯3I反过来,它很容易被氧化成α-酮酸酯3n。将后者硝化,得到3o,然后将其还原环化,得到1 H-苯并[ d,e ] [1,6]萘啶-2,3-二酮4。