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Publikováno v:
Bulletin of the Korean Chemical Society. 32:3963-3966
E-mail: bandgar_bp@yahoo.comReceived August 26, 2011, Accepted September 11, 2011A series of pyranopyrazoles, was efficiently synthesized via one-pot, four component reaction of ethylacetoacetate, hydrazine hydrate, aldehydes and malononitrile in the