170464-84-3Relevant academic research and scientific papers
Pyrrolopyrimidines. Part 3 : Synthesis of Some Novel 4-Subsituted Pyrrolopyrimidines and Their Related Triazolo Derivatives.
Basyouni, Mahid M.,Hosni, Hansa M.,El-Bayouki, Khairy A. M.
, p. 2771 - 2789 (2007/10/03)
3-Amino-5-aryl-4-imino-7-(p-tolyl)-4,7-dihydropyrrolo-3H-pyrimidines 3 were synthesized from reacting 2-ethoxymethylideneaminopyrrole-3-carbonitriles 2 with hydrazine hydrate.Rearrangement of 3 to 4-hydrazino-7H-pyrrolopyrimidines 4 was carried out.Products 3 were cyclized to the corresponding substituted 9-aryl-7-(p-tolyl)-7H-pyrrolotriazolopyrimidine derivatives 6-12 and 14 upon reacting with triethyl orthoformate, acetic acid, aldehydes, ethyl chloroformate, acyl chlorides and isothiocyanates respectively.The N-substituted-N'-pyrimidin-3-yl>ureas 13a-c and thioureas 13d-h were also obtained from reacting 3a with isocyanates and isothiocyanates respectively.Condensation of 4b with aldehydes and ketones afforded the hydrazones 15 in good yields. - Key words: Pyrrolopyrimidines; pyrrolotriazolo-pyrimidines.
PYRROLOPYRIMIDIMES. I: Synthesis of Novel Pyrrolopyrimidine Derivatives With Antimicrobial Activity
El-Bayouki, Khairy A. M.,Basyouni, Wahid M.,Hosni, H.,El-Deen, A. Shehab
, p. 1901 - 1912 (2007/10/02)
The preparation and cyclization of 2-aminopyrrole-3-carbonitriles 3 to the corresponding pyrrolopyrimidin-4-ones 5 were carriedout.The products 5 with phosphoryl chloride gave 4-chloropyrrolopyrimidine derivatives 7, which when reacted with hydrazine hydrate gave the corresponding 4-hydrazinopyrrolopyrimidines 8 in excellent yield.The syntheses of triazolo-9, tetrazolo-10 and 4-(3,5-dimethylpyrazolo)-12 pyrrolopyrimidines, as well as of a 3-(pyrrolopyrimidynylhydrazono)butanoate ester 13, are also reported.Selected examples from the newly synthesized compounds were tested in vitro for their antimicrobial activity.
