Some new nitrogen bridgehead pyrido[1,2-b][1,2,4]triazepines linked 8-allylchromone moiety have been synthesized from reaction of novel 4-(8-allyl-chromon-3-yl)-1,6-diamino-2-oxo-1,2-dihydropyridine-3,5-dicarbonitrile (3) with a variety of α,γ-bifunctional electrophiles including dibenzoylmethane, ethyl benzoylacetate, 3-[bis(methylthio)methylidene]pentane-2,4-dione, 2-cyano-3,3-bis(methylthio)acrylonitrile, 2-cyano-3,3-bis(methylthio)prop-2-enamide, 5-chloro-3-methyl-1-phenylpyrazole-4-carboxaldehyde, 2-chloro-3-formyl-quinoline, (p-methoxybenzylidene)malononitrile and ethyl 2-cyano-3-(4-methoxyphenyl)prop-2-enoate. Some novel pyrazolo[3,4-e]pyrido[1,2-b]-[1,2,4]triazepines were also synthesized. Structures of the newly synthesized products have been deduced upon the help of elemental analysis and spectral data (IR, 1H NMR, 13NMR, mass spectra).

中文翻译：

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氮桥头吡啶的合成方法-[1,2-

一些新的氮桥头吡啶并[1,2- b ][1,2,4]三氮杂连接8-烯丙基色酮部分已经由新型4-(8-烯丙基-色酮-3-基)-1,6-反应合成diamino-2-oxo-1,2-dihydropyridine-3,5-dicarbonitrile ( 3 ) 与各种 α,γ-双功能亲电子试剂，包括二苯甲酰甲烷、苯甲酰乙酸乙酯、3-[双（甲硫基）亚甲基]戊烷-2， 4-dione, 2-cyano-3,3- bis (methylthio)acrylonitrile, 2-cyano -3,3 - bis (methylthio)prop-2-enamide, 5-chloro-3-methyl-1-phenylpyrazole-4-甲醛、2-氯-3-甲酰基-喹啉、(对甲氧基苯亚甲基)丙二腈和2-氰基-3-(4-甲氧基苯基)丙-2-烯酸乙酯。一些新型吡唑并[3,4- e还合成了]吡啶并[1,2- b ]-[1,2,4]三氮杂。在元素分析和光谱数据（IR、1 H NMR、13 NMR、质谱）的帮助下，已经推断出新合成产物的结构。