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首页> 外文期刊>Heterocycles: An International Journal for Reviews and Communications in Heterocyclic Chemistry >Transformations of alkyl (5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-3-yl)acetates into 5-heteroaryl-3-oxo-2-phenyl-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxylates
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Transformations of alkyl (5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-3-yl)acetates into 5-heteroaryl-3-oxo-2-phenyl-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxylates

机译:(5-氧代-1-苯基-4,5-二氢-1H-吡唑-3-基)乙酸烷基酯转化成5-杂芳基-3-氧代-2-苯基-3,5-二氢-2H-吡唑并[5]。 4,3-c]吡啶-7-羧酸盐

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摘要

Alkyl [(Z)-4-dimethylaminomethylidene-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-3-yl]acetate (4) was transformed with N- and C-nucleophiles into alkyl [4-(subsituted amino)methylidene-4,5-dihydro-1H-pyrazol-3-yl]acetates (7) and alkyl (4-heteroarylmethylidene-4,5-dihydro-1H-pyrazol-3-yl)acetates (8),respectively.Compounds (7) cyclize by heating with DMFDMA in DMF into 2H-pyrazolo[4,3-c]pyridine-7-carboxylates (9).
机译:[(Z)-4-二甲基氨基亚甲基-5-氧代-1-苯基-4,5-二氢-1H-吡唑-3-基]乙酸烷基酯(4)用N-和C-亲核试剂转化为烷基[4- (取代的氨基)亚甲基-4,5-二氢-1H-吡唑-3-基]乙酸酯(7)和(4-杂芳基亚甲基-4,5-二氢-1H-吡唑-3-基)乙酸酯(8),化合物(7)通过在DMF中与DMFDMA加热而环化成2H-吡唑并[4,3-c]吡啶-7-羧酸盐(9)。

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