1. ARCHIV DER PHARMAZIE, 1988, VOLUME 321, ISSUE 12, 851-854
M. H. Elnagdi, K. U. Sadek, F. M. A. Galil, S. M. E. Hassan
Studies on Heterocyclic Amidines: Synthesis of New Azaindene Derivatives
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http://dx.doi.org/10.1002/ardp.19883211205
E. M. Zayed1, S. A. S. Ghozlan1, A.-A. H. Ibrahim
Studies on 5-aminopyrazole derivatives synthesis of some new fused pyrazole derivatives
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http://dx.doi.org/10.1007/BF00810004
K. U. Sadek, M. A. Selim, M. H. Elnagdi, H. H. Otto
Studies on Fused Azoles: Synthesis of Several New Polyfunctionally Substituted Fused Pyrazoles
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http://dx.doi.org/10.1246/bcsj.66.2927
M. H. Elnagdi, S. M. Fahmy, M. R. H. Elmoghayar, Z. M. Kandeel
Reactions with cyclic Amidines II.
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https://www.jhetchem.com/cd2html.php?file=19790061
Y. Kurasawa, Y. Kamigaki, H. S. Kim, R. Futatsukawa, M. Kanoh, M. Okiyama, A. Takada, Y. Okamoto
Synthesis and 13C-NMR Study of Novel Pyrazolo[5',1':3,4][1,2,4]triazino[5,6-d]pyrimidines
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https://www.jhetchem.com/cd2html.php?file=19890853
M. H. Elnagdi
Reactions with β-cyanoethylhydrazine—I A route for the preparation of pyrazolo[1.5-a]pyrimidines and pyrrolo[1.2-b]pyrrazoles
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http://dx.doi.org/10.1016/S0040-4020(01)97447-2
M. H. Elnagdi, D. H. Fleita, M. R. H. El-Moghayar
Reactions with β-cyanoethylhydrazine—II : Synthesis of some 4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine derivatives
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http://dx.doi.org/10.1016/0040-4020(75)80011-1
A. Messmer, A. Gelléri, Gy. Hajós
Synthesis and nitrogen elimination of 3-aryltetrazolo(1, 5-a)pyridinium salts and its angular benzenologues Formation of n-arylamino-α-pyridones. -quinolones, -isoquinolones, and phenanthridones
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http://dx.doi.org/10.1016/S0040-4020(01)82063-9