[1] Ahmed, S. A., Elghandour, A. H., & Elgendy, H. S. (2014). Synthesis of pteridines derivatives from different heterocyclic compounds. Der Pharma Chemica, 6(3), 194-219..
[2] Ahmed, S. A., Elgendy, H. S., & Younis, W. O. (2015). Pyrazolopyrimidines: Synthesis, Chemical Reactions and Biological Activity. ChemInform, 46(14), no-no.
[3] Hussein S. H. Mohamed, M. N., Sayed A. Ahmed. (2018) Novel synthesis and characterization of Aryl Benzothiazoles with antimicrobial activity, der pharma chemical 10(5), 121-127.
[4] Contreras, J. G., Seguel, G. V., & Gnecco, J. A. (1992). The IR and Raman spectra of 2-amino pyrimidine complexes of some Zn (II), Cd (II) and Hg (II) halides. Spectrochimica Acta Part A: Molecular Spectroscopy, 48(4), 525-532.
[5] Pullman, B., & Pullman, A. (1971). Electronic aspects of purine tautomerism. In Advances in Heterocyclic Chemistry(Vol. 13, pp. 77-159). Academic Press.
[6] Contreras, J. G., & Seguel, G. V. (1982). Solid State Vibrational Spectra of Tetrapropylammonium Tribromomercurate (II). Spectroscopy Letters, 15(9), 671-677.
[7] Hayat, F., Salahuddin, A., Umar, S., & Azam, A. (2010). Synthesis, characterization, antiamoebic activity and cytotoxicity of novel series of pyrazoline derivatives bearing quinoline tail. European journal of medicinal chemistry, 45(10), 4669-4675.
[8] Budakoti, A., Abid, M., & Azam, A. (2007). Syntheses, characterization and in vitro antiamoebic activity of new Pd (II) complexes with 1-N-substituted thiocarbamoyl-3, 5-diphenyl-2-pyrazoline derivatives. European journal of medicinal chemistry, 42(4), 544-551.
[9] Parveen, H., Hayat, F., Mukhtar, S., Salahuddin, A., Khan, A., Islam, F., & Azam, A. (2011). Synthesis, characterization and biological evaluation of novel 2, 4, 6-trisubstituted bis-pyrimidine derivatives. European journal of medicinal chemistry, 46(9), 4669-4675.
[10] Siddiqui, S. M., Salahuddin, A., & Azam, A. (2013). Pyrazolo [3, 4-d] pyrimidine analogues: synthesis, characterization and their in vitro antiamoebic activity. Medicinal Chemistry Research, 22(2), 775-781.
[11] Hussein S. H. Mohamed, H. S. B., Sayed A. Ahmed. (2017) Evaluation of N-Sulfanoamide Pyridines from Chalchon with Anticancer Effect, nternational Journal of Innovative Research in Science, Engineering and Technology 6, 15972-15981.
[12] Hussein S. H. Mohamed, M. N., Sayed A. Ahmed. (2017) Synthesis, Chemical reactions and applications of Aryl azo Thiazole, International Journal of advanced research, 5(7), 2426-2496.
[13] Azzama, E. M., Ahmedb, S. A., Mohamedb, H. H., Adlyb, M. A., & Gada, E. A. (2019). Removal of iron (II) from wastewater in oil field using 3-(p-methyl) phenyl-5-thionyl-1, 2, 4-triazoline assembled on silver nanoparticles. DESALINATION AND WATER TREATMENT, 142, 244-251.
[14] Bekhit, A. A., & Abdel-Aziem, T. (2004). Design, synthesis and biological evaluation of some pyrazole derivatives as anti-inflammatory-antimicrobial agents. Bioorganic & medicinal chemistry, 12(8), 1935-1945..
[15] Sayed A. Ahmed, H. S. E. (2014) Synthesis of some new purine and mercaptopurine analogues as antimetabolites, International Journal of advanced research, 2(5),865-876.
[16] Yadava, U., Singh, M., & Roychoudhury, M. (2013). Pyrazolo [3, 4-d] pyrimidines as inhibitor of anti-coagulation and inflammation activities of phospholipase A 2: insight from molecular docking studies. Journal of biological physics, 39(3), 419-438..
[17] Elion, G. B., Callahan, S., Nathan, H., Bieber, S., Rundles, R. W., & Hitchings, G. H. (1963). Potentiation by inhibition of drug degradation: 6-substituted purines and xanthine oxidase. Biochemical Pharmacology, 12(1), 85-93.
[18] Schenone, S., Brullo, C., Musumeci, F., & Botta, M. (2010). Novel dual Src/Abl inhibitors for hematologic and solid malignancies. Expert opinion on investigational drugs, 19(8), 931-945.
[19] Sayed A. Ahmed, O. M. A., Hussein S. Elgendy. (2014) Novel Synthesis of Purine analogues derivatives and Thieno [2,3-b]pyridine derivatives with anticancer and antioxidant activity, Journal of pharmacy research, 8(9), 1303-1313.
[20] Casini, N., Forte, I. M., Mastrogiovanni, G., Pentimalli, F., Angelucci, A., Festuccia, C., ... & Botta, M. (2015). SRC family kinase (SFK) inhibition reduces rhabdomyosarcoma cell growth in vitro and in vivo and triggers p38 MAP kinase-mediated differentiation. Oncotarget, 6(14), 12421.
[21] Carlomagno, F., Vitagliano, D., Guida, T., Basolo, F., Castellone, M. D., Melillo, R. M., ... & Santoro, M. (2003). Efficient inhibition of RET/papillary thyroid carcinoma oncogenic kinases by 4-amino-5-(4-chloro-phenyl)-7-(t-butyl) pyrazolo [3, 4-d] pyrimidine (PP2). The Journal of Clinical Endocrinology & Metabolism, 88(4), 1897-1902.
[22] Fogarasi, G., Pulay, P., & Durig, J. R. (1985). Vibrational spectra and structure. Vibrational Spectra and Structure, 14, 125.
[23] Schaefer, H. (Ed.). (2012). Applications of electronic structure theory (Vol. 4). Springer Science & Business Media.
[24] Islam, M. J., Kumer, A., Sarker, N., Paul, S., & Zannat, A. (2019). The prediction and theoretical study for chemical reactivity, thermophysical and biological activity of morpholinium nitrate and nitrite ionic liquid crystals: A DFT study. Advanced Journal of Chemistry-Section A (Theoretical, Engineering and Applied Chemistry), 2(4, pp. 266-385), 316-326.
[25] Javanshir, Z., Jameh-Bozorghi, S., & Peyki, P. (2018). DFT calculations of the neighboring groups effects on cheletropic reaction of 2, 5-Dihydrothiophene sulfone. Advanced Journal of Chemistry-Section A, 1(2. pp. 66-126), 117-126.
[26] Arivazhagan, M. (2011). Vibrational analysis of 4-amino pyrazolo (3, 4-d) pyrimidine A joint FTIR, Laser Raman and scaled quantum mechanical studies. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 82(1), 228-234.
[27] Fekri, M. H. (2019). Study of Electrochemical and Electronical Properties on the Some Schiff Base Ni Complexes in DMSO Solvent by Computational Methods. Advanced Journal of Chemistry-Section A, 2(1, pp. 1-93.), 14-20..
[28] Kumer, A., Sarker, N., Paul, S., & Zannat, A. (2019). The Theoretical Prediction of Thermophysical properties, HOMO, LUMO, QSAR and Biological Indics of Cannabinoids (CBD) and Tetrahhdrocannabinol (THC) by Computational Chemistry. Advanced Journal of Chemistry-Section A (Theoretical, Engineering and Applied Chemistry), 2(3. pp. 184-265), 190-202.
[29] Sanz, F., Manaut, F., José, J., Segura, J., Carbó, M., & De la Torre, R. (1988). Automatic determination of MEP patterns of molecules and its application to caffeine metabolism inhibitors. Journal of Molecular Structure: THEOCHEM, 170, 171-180.
[30] Abood, N. A. (2013). SH Hlban J. Chem. Pharm. Res, 5, 324-331.
[31] Yang, J., Yan, H., Wang, G., Zhang, X., Wang, T., & Gong, X. (2014). Computational investigations into the substituent effects of–N 3,–NF 2,–NO 2, and–NH 2 on the structure, sensitivity and detonation properties of N, N′-azobis (1, 2, 4-triazole). Journal of molecular modeling, 20(4), 2148.
[32] Scrocco, E., & Tomasi, J. (1973). The electrostatic molecular potential as a tool for the interpretation of molecular properties. In New concepts II (pp. 95-170). Springer, Berlin, Heidelberg.
[33] March, N. H. (1996). Electrostatic Potential, Bond Density and Bond Order in Molecules and Clusters. In Theoretical and Computational Chemistry (Vol. 3, pp. 619-647). Elsevier.
[34] Gomaa, E. G. A., Abdel Hady, M. H., Mahmoud, M. H., & El Kot, D. A. (2019). Cyclic Voltammetry of Aqueous CoCl2 in the Presence of Ceftriaxone Disodium Salt (Cefs) at 298.65 K. Advanced Journal of Chemistry-Section A, 2(1, pp. 1-93.), 1-13.
[35] Hariharan, P. C., & Pople, J. A. (1973). The influence of polarization functions on molecular orbital hydrogenation energies. Theoretica chimica acta, 28(3), 213-222.
[36] Hosseini, P., & Rezaei Sameti, M. (2019). The AIM, RDG, NBO, Quantum and Structural Study of Adsorption of Phosgene Gas on the Surface of Pristine and Al, P Doped Ga12N12 Nano Cluster: A DFT Method. Chemical Methodologies, 3(5, pp. 519-683), 607-625.
[37] Mosallanejad, B. (2019). Phthalimide Derivatives: New Promising Additives for Functional Electrolyte in Lithium-ion Batteries. Chemical Methodologies, 3(2. pp. 145-275), 261-275.
[38] Ahmadinejad, N., & Talebi Trai, M. (2019). Computational NQR− NBO Parameters and DFT Calculations of Ampicillin and Zwitterion (Monomer and Dimer Structures). Chemical Methodologies, 3(1. pp. 1-144), 55-66.
[39] Frisch, M. J., Trucks, G. W., Schlegel, H. B., Scuseria, G. E., Robb, M., Cheeseman, J. R., ... & Nakatsuji, H. (2009). Gaussian 09, Revision D. 01, Gaussian. Inc.: Wallingford, CT.
[40] Rezaei Sameti, M., & Amirian, B. (2018). A Quantum, NBO, RDG study the interaction of cadmium ion with the pristine, C, P and C&P doped (4, 4) armchair boron nitride nanotube (BNNTs). Asian Journal of Nanosciences and Materials, 1(4. pp. 172-293), 262-270.
[41] Houshmand, F., Neckoudaria, H., & Baghdadi, M. (2019). Host-guest interaction in chitosan–MX (3-chloro-4-(dichloromethyl)-5-hydroxy-2 (5H)-furanone) complexes in water solution: Density Functional Study. Asian Journal of Nanosciences and Materials, 2(1, pp. 1-119.), 49-65.
[42] Korivand, N., & Rezaei-Sameti, M. Asian Journal of Nanoscience and Materials.
[43] Prabavathi, N., Nilufer, A., Krishnakumar, V., & Akilandeswari, L. (2012). Spectroscopic, electronic structure and natural bond analysis of 2-aminopyrimidine and 4-aminopyrazolo [3, 4-d] pyrimidine: A comparative study. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 96, 226-241.
[44] Frisch, M. J. E. A., Trucks, G. W., Schlegel, H. B., Scuseria, G. E., Robb, M. A., Cheeseman, J. R., ... & Nakatsuji, H. (2009). Gaussian 09, revision a. 02, gaussian. Inc., Wallingford, CT, 200, 28.
[45] Becke, A. D. (1993) Density‐functional thermochemistry. III. The role of exact exchange, The Journal of chemical physics, 98(7), 5648-5652.
[46] Lee, C., Yang, W., & Parr, R. G. (1988). Development of the Colle-Salvetti correlation-energy formula into a functional of the electron density. Physical review B, 37(2), 785.
[47] Krishnakumar, V., & Dheivamalar, S. (2007). Density functional theory studies on tautomeric stability and infrared and Raman spectra of some purine derivatives. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 68(3), 823-832.
[48] Xue, Y., Xu, D., Xie, D., & Yan, G. (2000). Density functional theory studies on tautomeric stability and infrared spectra of 2-chloroadenine. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 56(10), 1929-1938.
[49] Datta, A., & Pati, S. K. (2004). Effects of dipole orientations on nonlinear optical properties of oxo-bridged dinitroaniline systems. The Journal of Physical Chemistry A, 108(2), 320-325.
[50] Shunmugam, R., & Sathyanarayana, D. N. (1984). Raman and polarized infrared spectra of pyridine-2-thione. Spectrochimica Acta Part A: Molecular Spectroscopy, 40(8), 757-761.
[51] Mukherjee, V., Singh, N. P., & Yadav, R. A. (2011). Optimized geometry and vibrational spectra and NBO analysis of solid state 2, 4, 6-tri-fluorobenzoic acid hydrogen bonded dimer. Journal of Molecular Structure, 988(1-3), 24-34.
[52] Hamilton, H. W., Ortwine, D. F., Worth, D. F., & Bristol, J. A. (1987). Synthesis and structure-activity relationships of pyrazolo [4, 3-d] pyrimidin-7-ones as adenosine receptor antagonists. Journal of medicinal chemistry, 30(1), 91-96.
[53] Squarcialupi, L., Colotta, V., Catarzi, D., Varano, F., Filacchioni, G., Varani, K., ... & Di Cesare Mannelli, L. (2013). 2-Arylpyrazolo [4, 3-d] pyrimidin-7-amino derivatives as new potent and selective human A3 adenosine receptor antagonists. Molecular modeling studies and pharmacological evaluation. Journal of medicinal chemistry, 56(6), 2256-2269.
[54] Massey, V., Komai, H., Palmer, G., & Elion, G. B. (1970). On the mechanism of inactivation of xanthine oxidase by allopurinol and other pyrazolo [3, 4-d] pyrimidines. Journal of Biological Chemistry, 245(11), 2837-2844.
[55] Falchi, F., Manetti, F., Carraro, F., Naldini, A., Maga, G., Crespan, E., ... & Botta, M. (2009). 3D QSAR Models Built on Structure‐Based Alignments of Abl Tyrosine Kinase Inhibitors. ChemMedChem: Chemistry Enabling Drug Discovery, 4(6), 976-987.
[56] Alkorta, I., & Elguero, J. (2017). The structure of N-arylindazoles and their aza-derivatives in the solid state: A systematic analysis of the Cambridge Structural Database coupled with DFT calculations. Journal of Molecular Structure, 1137, 186-192.
[57] Ali, H. I., Fujita, T., Akaho, E., & Nagamatsu, T. (2010). A comparative study of AutoDock and PMF scoring performances, and SAR of 2-substituted pyrazolotriazolopyrimidines and 4-substituted pyrazolopyrimidines as potent xanthine oxidase inhibitors. Journal of computer-aided molecular design, 24(1), 57-75.
[58] Avasthi, K., Rawat, D. S., Maulik, P. R., Sarkhel, S., Broder, C. K., & Howard, J. A. (2001). 1H NMR and X-ray crystallographic analysis of 1, 2-bis (4, 6-diethylthio-1H-pyrazolo [3, 4-d] pyrimidin-1-yl) ethane and its ‘propylene linker’-analog: molecular recognition versus crystal engineering. Tetrahedron Letters, 42(40), 7115-7117.
[59] Avasthi, K., Aswal, S., Kumar, R., Yadav, U., Rawat, D. S., & Maulik, P. R. (2005). Fine tuning of folded conformation by change of substituents: 1H NMR and crystallographic evidence for folded conformation due to arene interactions in pyrazolo [3, 4-d] pyrimidine core based ‘propylene linker’compounds. Journal of molecular structure, 750(1-3), 179-185.
[60] Maulik, P. R., Avasthi, K., Biswas, G., Biswas, S., Rawat, D. S., Sarkhel, S., ... & Bhakuni, D. S. (1998). A stacked pyrazolo [3, 4-d] pyrimidine-based flexible molecule. Acta Crystallographica Section C: Crystal Structure Communications, 54(2), 275-277.
[61] Avasthi, K., Aswal, S., & Maulik, P. R. (2001). A stacked pyrazolo [3, 4-d] pyrimidine-based flexible molecule: the effect on stacking of an ethyl group in comparison with a methyl group. Acta Crystallographica Section C: Crystal Structure Communications, 57(11), 1324-1325.
[62] Avasthi, K., Tewari, A., Rawat, D. S., Sharon, A., & Maulik, P. R. (2002). A stacked pyrazolo [3, 4-d] pyrimidine-based flexible molecule: the effect of a bulky benzyl group on intermolecular stacking in comparison with methyl and ethyl groups. Acta Crystallographica Section C: Crystal Structure Communications, 58(8), o494-o495.
[63] Avasthi, K., Farooq, S. M., Aswal, S., Raghunandan, R., & Maulik, P. R. (2007). 1H NMR and crystallographic evidence for tolerance of bulky electron withdrawing methanesulfonyl group on robustness of the U-motif in pyrazolo [3, 4-d] pyrimidine core based ‘Leonard linker’compounds and formation of plus (+) motif. Journal of molecular structure, 827(1-3), 88-94.
[64] Avasthi, K., Bhagat, D., Bal, C., Sharon, A., Yadav, U., & Maulik, P. R. (2003). Unusual molecular conformation in dissymmetric propylene-linker compounds containing pyrazolo [3, 4-d] pyrimidine and phthalimide moieties. Acta Crystallographica Section C: Crystal Structure Communications, 59(8), o409-o412.
[65] Avasthi, K., Rawat, D. S., Sarkhel, S., & Maulik, P. R. (2002). A dimeric layered structure of a 4-oxo-4, 5-dihydro-1H-pyrazolo [3, 4-d] pyrimidine compound. Acta Crystallographica Section C: Crystal Structure Communications, 58(6), o325-o327.
[66] Yadava, U., Singh, M., & Roychoudhury, M. (2011). Gas-phase conformational and intramolecular π–π interaction studies on some pyrazolo [3, 4-d] pyrimidine derivatives. Computational and Theoretical Chemistry, 977(1-3), 134-139.
[67] Laarej, K., Bouachrine, M., Radi, S., Kertit, S., & Hammouti, B. (2010). Quantum chemical studies on the inhibiting effect of bipyrazoles on steel corrosion in HCl. Journal of Chemistry, 7(2), 419-424.
[68] Chtita, S., Larif, M., Ghamali, M., Adad, A., Rachid, H., Bouachrine, M., & Lakhlifi, T. (2013). Studies of two different cancer cell lines activities (MDAMB-231 and SK-N-SH) of imidazo [1, 2-a] pyrazine derivatives by combining DFT and QSAR results. Studies, 2(11).
[69] Elidrissi, B., Ousaa, A., Ghamali, M., Chtita, S., Ajana, M. A., Bouachrine, M., & Lakhlifi, T. (2014). Journal of Computational Methods in Molecular Design, 2014, 4 (4): 140-149. Journal of Computational Methods in Molecular Design, 4(4), 140-149.
[70] Krishnakumar, V., Prabavathi, N., & Muthunatesan, S. (2008). Structure and vibrational frequencies of 1-naphthaldehyde based on density functional theory calculations. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 69(2), 528-533.
[71] El-Mansy, M. A. M., & El-Nahass, M. M. (2014). On the spectroscopic analyses of Perylene-66. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 130, 568-573.
[72] Shukla, B. K., Yadava, U., & Roychoudhury, M. (2015). Theoretical explorations on the molecular structure and IR frequencies of 3-phenyl-1-tosyl-1H-pyrazolo [3, 4-d] pyrimidin-4-amine in view of experimental results. Journal of Molecular Liquids, 212, 325-330.
[73] Kasula, M., Samunuri, R., Chakravarty, H., Bal, C., Baba, M., Jha, A. K., & Sharon, A. (2016). Regioselective Synthesis of Pyrazolo [3, 4-D] Pyrimidine Based Carbocyclic Nucleosides as Possible Antiviral Agent. Nucleosides, Nucleotides and Nucleic Acids, 35(1), 43-52.
[74] Khan, S. A. (2017). Green synthesis, spectrofluorometric characterization and antibacterial activity of heterocyclic compound from chalcone on the basis of in vitro and quantum chemistry calculation. Journal of fluorescence, 27(3), 929-937.
[75] Asiri, A. M., & Khan, S. A. (2012). Synthesis, characterization, and in vitro antibacterial activities of macromolecules derived from bis‐chalcone. Journal of Heterocyclic Chemistry, 49(6), 1434-1438.
[76] Lauria, A., Abbate, I., Patella, C., Gambino, N., Silvestri, A., Barone, G., & Almerico, A. M. (2008). Pyrazolo [3, 4-d][1, 2, 3] triazolo [1, 5-a] pyrimidine: a new ring system through Dimroth rearrangement. Tetrahedron Letters, 49(35), 5125-5128.
[77] Zaki, Y. H., Sayed, A. R., & Elroby, S. A. (2016). Regioselectivity of 1, 3-dipolar cycloadditions and antimicrobial activity of isoxazoline, pyrrolo [3, 4-d] isoxazole-4, 6-diones, pyrazolo [3, 4-d] pyridazines and pyrazolo [1, 5-a] pyrimidines. Chemistry Central Journal, 10(1), 17.
[78] Al-Sehemi, A. G., Irfan, A., & Fouda, A. M. (2013). Synthesis, characterization and density functional theory investigations of the electronic, photophysical and charge transfer properties of donor–bridge–acceptor triaminopyrazolo [1, 5-a] pyrimidine dyes. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 111, 223-229.
[79] Koleva, G., Galabov, B., Wu, J. I., Schaefer III, H. F., & Schleyer, P. V. R. (2009). Electrophile affinity: a reactivity measure for aromatic substitution. Journal of the American Chemical Society, 131(41), 14722-14727.
[80] Bedford, R. B., Durrant, S. J., & Montgomery, M. (2015). Catalyst‐Switchable Regiocontrol in the Direct Arylation of Remote C H Groups in Pyrazolo [1, 5‐a] pyrimidines. Angewandte Chemie International Edition, 54(30), 8787-8790.
[81] Ebead, Y. H. (2012). Spectrophotometric investigations and computational calculations of prototropic tautomerism and acid–base properties of some new azo dyes. Dyes and Pigments, 92(1), 705-713.
[82] Hihara, T., Okada, Y., & Morita, Z. (2003). Reactivity of phenylazonaphthol sulfonates, their estimation by semiempirical molecular orbital PM5 method, and the relation between their reactivity and azo-hydrazone tautomerism. Dyes and Pigments, 59(3), 201-222.
[83] Hammam, A. M., Rageh, N. M., & Ibrahim, S. A. (1997). Solvatochromic studies on 2-[(2-hydroxypheny) azo]-4-5-diphenylimidazole. dyes and Pigments, 35(3), 289-296.
[84] Karcı, F., Şener, N., Yamaç, M., Şener, İ., & Demirçalı, A. (2009). The synthesis, antimicrobial activity and absorption characteristics of some novel heterocyclic disazo dyes. Dyes and Pigments, 80(1), 47-52.
[85] Becke, A. D. (1988). Density-functional exchange-energy approximation with correct asymptotic behavior. Physical review A, 38(6), 3098.
[86] Becke, A. D. (1993). A new mixing of Hartree–Fock and local density‐functional theories. The Journal of chemical physics, 98(2), 1372-1377.
[87] Issa, R. M., Sadek, H., & Ezzat, I. I. (1971). Spectrophotometric studies on dihydric phenols. Zeitschrift für Physikalische Chemie, 74(1_2), 17-25.
[88] Issa, R. M., Hammam, A. S., & Etaiw, S. H. (1972). The Electronic Absorption Spectra of Some 2, 3-Benzcarbazoloquinones. Zeitschrift für Physikalische Chemie, 251(1), 177-182.
[89] Zahedifar, M., & Sheibani, H. (2014). Unexpected Products from Mesoionic 1, 3-Thiazinium and Oxazinium Olates: A Novel Access to 3, 5-Diaryl-1, 3-thiazine-2, 4, 6-trione and Alkoxy-3, 5-diphenyl-3H-1, 3-oxazine-2, 6-dione Derivatives. Australian Journal of Chemistry, 67(9), 1201-1204.
[90] Zahedifar, M., & Sheibani, H. (2016). Reaction of α-oxoketenes with 2-substituted benzothiazoles and benzimidazoles: synthesis of benzo [4, 5] thiazolo [3, 2-a] pyridinone and N-(1, 3-benzothiazol-2-yl)-3-oxopropanamide derivatives. Chemistry of Heterocyclic Compounds, 52(1), 41-44.
[91] Sheibani, H., & Zahedifar, M. (2009). The condensation of (chlorocarbonyl) phenylketene with 1, 3-dinucleophiles (2) Preparation of 2-hydroxy-3-phenyl-4H-pyrimido [2, 1-b][1, 3] benzothiazol-4-ones and thioxo dihydro-4, 6 (1H, 5H)-pyrimidinones. Heterocycles, 78(4), 1015-1022.
[92] Zahedifar, M., Razavi, R., & Sheibani, H. (2016). Reaction of (chloro carbonyl) phenyl ketene with 5-amino pyrazolones: Synthesis, characterization and theoretical studies of 7-hydroxy-6-phenyl-3-(phenyldiazenyl) pyrazolo [1, 5-a] pyrimidine-2, 5 (1H, 4H)-dione derivatives. Journal of Molecular Structure, 1125, 730-735.
[93] Wazzan, N. A., & Mahgoub, F. M. (2014). DFT calculations for corrosion inhibition of ferrous alloys by pyrazolopyrimidine derivatives. Open Journal of Physical Chemistry, 4(01), 6.