Synthesis and rearrangements of 7H-pyrrolo[3,2-e][1,2,4]triazolo[1,5-c]-and 7h-pyrrolo[3,2-e][1,2,4]triazolo[4,3-c]pyrimidines
7H-Pyrrolo[3,2-e][1,2,4]triazolo[1,5-c]pyrimidines were synthesized by the reactions of 2-ethoxymethyleneamino-1H-pyrrole-3-carbonitriles with acid hydrazides and by the reactions of aminoiminopyrimidines (prepared based on the above-mentioned carbonitriles) with acid chlorides.
Vorob'ev,Kurbatov,Krasnikov,Mezheritskii,Usova
p. 1492 - 1497
(2007/10/03)
Synthesis of 7-Unsubstituted 7H-Pyrrolopyrimidines
The title compounds 4 are obtained by N-7 dealkylation of the 2-furanylmethyl, 2-thiophenylmethyl, or 1-phenylethyl group from 2a-g and 10 a-j with polyphosphoric acid.In contrast to the 2-furanylmethyl group the 2-thiophenylmethyl and 1-phenylethyl group
Pichler, Herbert,Folkers, Gerd,Roth, Hermann J.,Eger, Kurt
p. 1485 - 1505
(2007/10/02)
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