130506-87-5Relevant articles and documents
A NEW ENTRY TO PYRAZOLOPYRIMIDINE DERIVATIVES
Bruni, Fabrizio,Chimichi, Stefano,Cosimelli, Barbara,Costanzo, Annarella,Guerrini, Gabriella,Selleri, Silvia
, p. 1141 - 1149 (2007/10/02)
Treatment of 3-aminopyrazoles (1a-e) with 3-ethoxymethylenpentane-2,4-dione afforded the new pyrazolopyrimidines (2a-e) which were then converted into the enamines (3a-e) by reaction with dimethylformamide dimethyl acetal; ring closure of these lat