Pyrrolopyrimidin-4-ylidene-malononitriles IIa-d were prepared as important intermediates for preparation of a new series of spiro-pyrrolopyrimidines. These intermediates undergo cyclisation via reaction with acetylacetone, guanidine hydrochloride or hydrazine hydrate. Elemental and spectroscopic evidences for the structures of these compounds are presented. The final compounds have been monitored for in vivo antihyperglycemic activity, compared with Amaryl as standard drug. Among 12 tested compounds, both spiro (pyrano IIIb and pyrazlo Va) derivatives exhibit promising anti-hyperglycemic activity.
Pyrrolopyrimidin-4-ylidene-malononitriles IIa-d were prepared as important intermediates for preparation of a new series of spiro-pyrrolopyrimidines. These intermediates undergo cyclisation via reaction with acetylacetone, guanidine hydrochloride or hydrazine hydrate. Elemental and spectroscopic evidences for the structures of these compounds are presented. The final compounds have been monitored for in vivo antihyperglycemic activity, compared with Amaryl as standard drug. Among 12 tested compounds, both spiro (pyrano IIIb and pyrazlo Va) derivatives exhibit promising anti-hyperglycemic activity.
Synthesis and Biological Evaluation of Some Pyrrolo[2,3-d]pyrimidines
作者:Aymn E. Rashad、Mosaad S. Mohamed、Magdy E. A. Zaki、Samar S. Fatahala
DOI:10.1002/ardp.200600055
日期:2006.12
Pyrrolo[2,3‐d]pyrimidine and tetrazolopyrimidine derivatives 2a, b–5a, b were prepared. Also, acyclic and cyclic C‐nucleosides 7a, b–12a, b were prepared by treating compound 6 with some aldoses. All prepared products were tested for antiviral activity against hepatitis‐A virus (HAV, MBB‐cell culture adapted strain) and herpes simplex virus type‐1 (HSV‐1). Plaque reduction infectivity assay was used