作者:Sandeep P. Modi、Todd McComb、Abdel-Hadi Zayed、R. Christopher Oglesby、Sydney Archer
DOI:10.1016/s0040-4020(01)87753-x
日期:1990.1
A few 6H-pyrido[4,3-b]carbazoles were prepared for cytotoxicity testing in cultures of human lung cancer cells. Methyl 6-methoxyindoleacetate , prepared by reduction of methyl 4-(2-nitro-5-methoxyphenyl)-3-oxobutyrate , was condensed with 3-acetylpyridine to give the vinyl indole which was quarternized with p-nitrobenzyl bromide. Cyclization of this salt with the aid of sodium methoxide and ethyl nicotinate
制备了一些6H-吡啶并[4,3-b]咔唑,用于在人肺癌细胞培养物中的细胞毒性测试。通过还原4-(2-硝基-5-甲氧基苯基)-3-氧代丁酸甲酯制备的6-甲氧基吲哚乙酸甲酯与3-乙酰基吡啶缩合,得到乙烯基吲哚,其被对硝基苄基溴季铵化。借助于甲醇钠和烟酸乙基硫代甲烷使该盐环化,得到6H-吡啶并[4,3-b]咔唑。用三丁基膦在沸腾的DMF中进行短暂处理,得到的酯,经LilH4还原,然后用异氰酸甲酯处理,得到5-羟甲基-9-甲氧基-11-甲基-6H-吡啶并[4,3-b]咔唑N-氨基甲酸甲酯