Synthesis of 8-Methoxy-1-methyl-1<i>H</i>-benzo[<i>d</i><i>e</i>][1,6]naphthyridin-9-ol (Isoaaptamine) and Analogues
作者:Andrew J. Walz、Richard J. Sundberg
DOI:10.1021/jo001080s
日期:2000.11.1
sponge was synthesized. The synthesis parallels a synthesis of 8,9-dimethoxybenzo[de][1,6]naphthyridine, aaptamine, but uses a nitromethyl substituent as a precursor of the key 5-(2-aminoethyl)-1H-quinolin-4-one intermediate. The quinolone intermediates were prepared by thermolysis (220-240 degrees C) of anilinomethylene derivatives of Meldrum's acid. The quinolone intermediates were N-methylated prior
合成了从海绵中分离得到的PKC抑制剂8-甲氧基-1-甲基-1H-苯并[[]] [1,6]萘啶-9-醇。该合成与8,9-二甲氧基苯并[[]] [1,6]萘啶,Aaptamine的合成相似,但是使用硝基甲基取代基作为关键的5-(2-氨基乙基)-1H-喹啉-4-酮中间体的前体。喹诺酮中间体是通过热解(220-240摄氏度)Meldrum酸的苯胺基亚甲基衍生物制得的。在环化成苯并[de] [1,6]萘啶衍生物之前,先对喹诺酮中间体进行N-甲基化。制备了Aaptamine以及几种Aaptamine和异Opaaptamine的类似物,包括9-去甲基Aaptamine,1-甲基-8-去甲基Aaptamine,1-甲基Aaptamine以及Aaptamine和1-甲基Aaptamine的8,9-亚甲基二氧基类似物。