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کلمات کلیدی: Pyrimidine
موارد یافت شده: 132
1 - Design of the MMT-BAC@Fe3O4@CuNi as highly efficient nanocatalyst forthe synthesis of pyrimidines (چکیده)2 - Synthesis of Fe3O4@SiO2@Pr-NH2@DAP as a magnetic recyclable nano-catalyst for efficient synthesis of pyranothiazolopyrimidines and 4H-pyrans under solvent-free condition (چکیده)
3 - Synthesis and antimicrobial/antioxidant evaluation of novel pyrimidine-based derivatives with pendant pyrazoles using vinamidinum salts (چکیده)
4 - Synthesis of new derivatives of a novel [1,3]selenazolo[5,4-e][1,2,4]triazolo[1,5-c]pyrimidine heterocyclic architecture via Dimroth rearrangement (چکیده)
5 - Tandem intramolecular Pinner–Dimroth rearrangement assisted synthesis of fully-functionalized new selenopheno[3,2-d]pyrimidine heterocycles (چکیده)
6 - Domino protocol for the synthesis of diversely functionalized derivatives of a novel fused pentacyclic antioxidant/anticancer fluorescent scaffold: Pyrazolo[5'',1'':2',3']pyrimido[4',5':5,6][1,4]thiazino[2,3-b]quinoxaline (چکیده)
7 - Synthesis of new derivatives of Alkylselanyl[1,2,4]triazolo[4,3‐a]pyrimidine asselenium‐containingheterocyclic system (چکیده)
8 - Synthesis of Novel DPPH-Free Radical Scavenger Se -Containing Fused Chalcogenophenes: 2-Alkyl-7-Cyano-4-Imino-3-Phenyl-6-(pyrrolidin-1-yl)-3,4-Dihydroselenopheno[3,2- d ]Pyrimidines (چکیده)
9 - Efficient synthesis of novel chromeno[2,3-d][1,3,4]thiadiazolo[3,2-a]pyrimidine derivatives via three-component reaction using acidic ionic liquid catalysts in ethylene glycol (چکیده)
10 - Utilization of phenyl isothiocyanate for the synthesis of multi-functionalized derivatives of 4-imino-7-cyano-3-phenyl-6-(pyrrolidin-1-yl)-2-thioxo- 1,2,3,4-tetrahydroselenopheno[3,2-d]pyrimidine (چکیده)
11 - Fabrication of Heterogeneous-based Lacunary Polyoxometalates as Efficient Catalysts for the Multicomponent and Clean Synthesis of Pyrazolopyranopyrimidines (چکیده)
12 - One-pot Three-component Synthesis of Novel 1,3,4-Thiadiazole-thiazolo[3,2-a]pyrimidine Derivatives Catalyzed by Molecular Iodine (چکیده)
13 - Efficient synthesis of novel chromenopyrido[3,2-e]isothiazolo[2,3-a]pyrimidines via a non-catalytic one-pot three-component reaction (چکیده)
14 - Introducing a potential lead structure for the synthesis of more specific inhibitors of tyrosinases and catechol oxidases (چکیده)
15 - A Dimroth rearrangement approach for the synthesis of selenopheno[2,3-e][1,2,4]triazolo[1,5-c]pyrimidines with cytotoxic activity on breast cancer cells (چکیده)
16 - Dimroth rearrangement-based synthesis of novel derivatives of [1,3]selenazolo[5,4-e][1,2,4]triazolo[1,5-c]pyrimidine as a new class of selenium-containing heterocyclic architecture (چکیده)
17 - An efficient synthesis of novel spiro[indole-3,8′-pyrano[2,3-d][1,3,4]thiadiazolo[3,2-a]pyrimidine derivatives via organobase-catalyzed three-component reaction of malononitrile, isatin and heterocyclic-1,3-diones (چکیده)
18 - Straightforward and simple synthesis of novel pyranodipyrimidine derivatives via reaction of aromatic aldehydes and heterocyclic-1,3-dicarbonyl compound (چکیده)
19 - Organobase-catalyzed one-pot three-component synthesis of novel pyrano[2,3-d][1,3]thiazolo[3,2-a]pyrimidine derivatives (چکیده)
20 - Ecofriendly and Facile One‐Pot Multicomponent Synthesis of 5‐Phenyl‐5,10‐dihydropyrido[2,3‐d : 6,5‐d′]dipyrimidine‐2,4,6,8(1H,3H,7H,9H)‐tetraone Derivatives Catalyzed by CuII Immobilized on Functionalized Magnetic Mesoporous MCM‐41 (Fe3O4@MCM‐41‐GPTMS‐Gu‐CuII) (چکیده)
21 - Novel Tricyclic 2-Alkoxy-8-methyl-6-(pyrrolidin-1-yl)-4H-[1,2,4]triazolo[5,1-f]purine Derivatives: Synthesis and Characterization (چکیده)
22 - Synthesis and antiproliferative assessments of new derivatives of isothiazolo[3,4-d]pyrimidine (چکیده)
23 - Synthesis of Various Derivatives of [1,3]Selenazolo[4,5‐d]pyrimidine and Exploitation of These Heterocyclic Systems as Antibacterial, Antifungal, and Anticancer Agents (چکیده)
24 - 12-Tungstoboric acid (H5BW12O40) as an efficient Lewis acid catalyst for the synthesis of chromenopyrimidine-2,5-diones and thioxochromenopyrimidin-5-ones: Joint experimental and computational study (چکیده)
25 - An alternative approach to the synthesis of new 2-substitueted-4,9- dimethyl-9H-pyrimido[4,5-b]indole derivatives (چکیده)
26 - Synthesis of various derivatives of [1,3]selenazolo[4,5-d]pyrimidine as a novel selenazolocondenced heterocyclic system (چکیده)
27 - Investigation of the uncommon basic properties of [Ln(W5O18)2]9– (Ln = La, Ce, Nd, Gd, Tb) by changing central lanthanoids in the syntheses of pyrazolopyranopyrimidines (چکیده)
28 - A simple and efficient synthesis of novel pyranothiadiazolopyrimidine derivatives by three component reactions in solvent-free conditions (چکیده)
29 - Synthesis of Pyrazolo‐[4́,3́:5,6]pyrido[2,3‐d]pyrimidine‐diones Catalyzed by a Nano‐sized Surface‐Grafted Neodymium Complex of the Tungstosilicate via Multicomponent Reaction (چکیده)
30 - Synthesis of 2-Amino-5-hydroxy Pyrimidines as the Novel Analogues of Tyrosinase Substrate (چکیده)
31 - Synthesis of Various Derivatives of a Novel Heterocyclic System of Tetrazolo[1,5-a][1,2,3]triazolo[4,5-d]pyrimidine (چکیده)
32 - A New Multicomponent Synthetic Route to Hexahydropyrido[2,3‐d]pyrimidine Derivatives (چکیده)
33 - Facile construction of novel fused chromeno[2,3-d]thiazolo[3,2-a]pyrimidine derivatives in biocompatible ionic liquid under solvent-free conditions (چکیده)
34 - Selenopheno[2,3-e][1,2,4]triazolo[4,3-c]pyrimidine: A novel tricyclic selenium containing heterocyclic system (چکیده)
35 - Metal-Free Debromination of 5-Bromopyrimidine Derivatives Using DMF/Trialkylamine as the Hydrogen Source (چکیده)
36 - Pure Water-Induced Dehalogenation of 2,4-Di-tert-amino-6- substituted-5-halogenopyrimidines (چکیده)
37 - Synthesis of Pyrimido[4,5-e]tetrazolo[5,1-b] [1,3,4]thiadiazepine as a Novel Fused Heterocyclic System (چکیده)
38 - Novel bis-pyrimidine derivatives: Synthesis and characterization (چکیده)
39 - Preconcentration and Determination of Lead for Trace Levels in Water and Wastewater Samples by Vortex-Assisted Microextraction Using TPAS as a New Synthetic Complexing Agent with Electrothermal Atomic Absorption Spectroscopy Detection (چکیده)
40 - An efficient one-pot synthesis of highly functionalized benzylpyrazolyl pyrido[1,2-a]pyrimidine derivatives using CuFe2O4 nanoparticles under solvent-free conditions (چکیده)
41 - Basic Task-specific Ionic Liquid as Catalyst and Reaction Medium: A Green Protocol for the Synthesis of 4-Oxo-6-aryl-2-thioxo-1,2,3,4- tetrahydropyrimidine-5-carbonitrile Derivatives (چکیده)
42 - Effects of pyrimidine nucleosides on growth performance, gut morphology, digestive enzymes, serum biochemical indices and immune response in broiler chicken (چکیده)
43 - Convenient one-pot access to Novel Densely Functionalized Pyrano[2,3-d][1,3,4]Thiadiazolo[3,2- a]Pyrimidines via Three Component Reaction (چکیده)
44 - A New, Simple, Catalyst-free Method for the Synthesis of Pyrazolopyranopyrimidines in Magnetized Water (چکیده)
45 - Regioselective synthesis of new 5- methyl- 5Hpyrimido [ 4′,5′:4,5] [1,3] thiazino [3,2-a] perimidines (چکیده)
46 - Synthesis of pyrimido [4′,5′:5,6] [1,4] dithiepino [2,3- b] quinoxalines: Derivatives of a novel seven membered ring system (چکیده)
47 - Synthesis, X-ray and Fluorescence Characteristics of Pyrimido[5,4-e]thiazolo[3,2-a]pyrimidine as a Novel Heterocyclic System (چکیده)
48 - Novel bis-pyrimidine derivatives: Synthesis and characterization (چکیده)
49 - A novel approach to synthesis of new imidazo[2',1':2,3]thiazolo[5,4-d]pyrimidines as a class of heterocyclic compounds (چکیده)
50 - Catalyst-free dehalogenation of 5-bromopyrimidine derivatives using DMF/trialkylamine as the hydrogen source (چکیده)
51 - Synthesis and regioselective determination of new derivatives of pyrimido[4,5-d]thiazolo[3,2-a]pyrimidine (چکیده)
52 - Synthesis and Density Functional Theory Study of [1,2,3]Triazolo[4,5-d][1,2,4] Triazolo[4,3-a]Pyrimidine Derivatives: A Novel Heterocyclic System (چکیده)
53 - Synthesis, Characterisation, and in Vitro Antibacterial Evaluation of a New Class of 2-substituted-4-methyl-7,8-dihydro-5H-pyrimido[4,5-d]thiazolo[3,2-a] Pyrimidines (چکیده)
54 - Using magnetized water as a solvent for a green, catalyst-free, and efficient protocol for the synthesis of pyrano[2,3-c]pyrazoles and pyrano[40,30:5,6]pyrazolo [2,3-d]pyrimidines (چکیده)
55 - Efficient one-pot three-component synthesis of novel spiro(indoline-3,7'- thiazolo[3,2-a]pyrimidine) derivatives (چکیده)
56 - An unexpected diastereoselective synthesis of novel substituted pyridines via one-pot, four-component reaction (چکیده)
57 - Synthesis and evaluation of cytotoxicity of 6-amino-4-aryl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitriles (چکیده)
58 - Synthesis of Thiazolo[5,4-d][1,2,4]Triazolo[4,3-a]Pyrimidines as a New Class of Heterocyclic Compounds (چکیده)
59 - Coordination behavior of chelidamic acid with V(V), Ni(II), Fe(III), and Ca(II): Syntheses, X-ray characterization and DFT studies (چکیده)
60 - Synthesis and Antiproliferative Evaluation of New Pyrimido [1,6-a]Thieno[2,3-d]Pyrimidine Derivatives (چکیده)
61 - Synthesis of New Derivatives of Pyridazino[6,1-c]Pyrimido[5,4-e][1,2,4]Triazine; a Novel Heterocyclic System (چکیده)
62 - Efficient synthesis of novel pyrano[2,3- d ]pyrido[1,2- a ]pyrimidine derivatives via isocyanide-based three-component reactions (چکیده)
63 - Synthesis of New Derivatives of 4-(4,7,7-Trimethyl-7,8-dihydro-6H-benzo [b]pyrimido[5,4-e][1,4]thiazin-2-yl)morpholine (چکیده)
64 - Synthesis of Dihydrobenzo[b]pyrimido[4,5-e][1,4]Thiazepines; Derivatives of a Novel Ring System (چکیده)
65 - Alternative route for the synthesis of new derivatives of benzimidazo[2’,1’:2,3] thiazolo[5,4-d]pyrimidine (چکیده)
66 - Synthesis of new derivatives of [1,2,3]triazolo[4,5-d][1,2,4]triazolo[4,3-a]pyrimidine (چکیده)
67 - Synthesis of new derivatives of 5-amino-9H-pyrrolo[2,3-e][1,2,4]triazolo[4,3c]pyrimidine via Leimgruber and Batcho indole synthesis (چکیده)
68 - Synthesis of New Derivatives of Pyrazolo[4,3-e][1,2,4]Triazolo[4,3-c]Pyrimidine (چکیده)
69 - Synthesis of Oxazolo[5,4‐d][1,2,4]triazolo[4,3‐a]pyrimidines as a New Class of Heterocyclic Compounds (چکیده)
70 - (2-Aminopyrimidine- κ N 1 )aqua(pyridine-2,6-dicarboxylato- κ 3 O 2 , N,O 6 )copper(II): X-ray and DFT calculated structure (چکیده)
71 - Synthesis of [1,2,4]Triazolo[3,4-b]Pteridines as a Novel Class of Heterocyclic Compounds (چکیده)
72 - Synthesis and Spectral Characteristics of Nove lFluorescentDyes Based on Pyrimido[4,5-d ][1, 2,4 ]triazolo[4,3-a ]pyrimidine (چکیده)
73 - Synthesis of [1,2,4]triazolo[4′′,3′′:1′,6′]pyrimido[4′,5′:3,4]pyridazino[1,6-d ] [1,2,4]triazine; a novel tetracyclic system (چکیده)
74 - Efficient synthesis of novel spiro[indole-3,6'- pyrano[2,3-d][1,3]thiazolo[3,2-a]pyrimidine derivatives through an organobase-catalyzed, three- component reaction (چکیده)
75 - Vibrational assignments and proton tunneling studies of pyrimidine-pyrimidinium complex (چکیده)
76 - Efficient synthesis of novel tricyclic fused pyranothiazolopyrimidine derivatives via isocyanide-based three-component reactions (چکیده)
77 - Synthesis of novel heterocycle systems: 6,8-dimethyl-2-(methylsulfanyl-4-amino-substituted pyrimido[4′,5′:3,4]pyrazolo[1,5-a]pyrimidine and 9,11-dimethyl-5-(methylsulfanyl)pyrimido[2′,1′:5,1]pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidine (چکیده)
78 - Synthesis of new heterocyclic compounds based on Pyrazolo[3,4-d]pyrimidine derivatives (چکیده)
79 - Synthesis of novel heterocycle system: 6,8-dimethyl-2-(methylthio)-4-(amino saubtituted)pyrazolo[1,5-α:3,4-d’]dipyrimidine (چکیده)
80 - Synthesis of new heterocyclic system: 2-substituted-4-methyl-5,11dihydrobenzo[b]pyrimido[4,5-e][1,4]thiazepine (چکیده)
81 - Synthesis of New Ethyl (pyrazolo[3,4-d]pyrimidin-1-yl)pyrimidine-5carboxylateDerivatives as Potential Antibacterial Agents (چکیده)
82 - Antimicrobial Evaluation of MIC and MBC of Some New Pyrazolo[3,4d]pyrimidine Derivatives Against Some Pathogenic Bacteria (چکیده)
83 - Synthesis and antibacterial activities of new fluoroquinolones based on ciprofloxacin structure (چکیده)
84 - Extended structures in copper(II) complexes with 4-hydroxypyridine-2,6-dicarboxylate and pyrimidine derivative ligands: X-ray crystal structure, (چکیده)
85 - A new approach for C-substitution of 5-bromo-2,4-dichloro-6-methyl pyrimidine (چکیده)
86 - Investigation of regioselectivity on the reaction of 5-bromo-2,4-dichloro-6-methylpyrimidine with ammonia (چکیده)
87 - Synthesis, Structural Characterization and Theoretical studies of a Mixed Ligand Copper Coordination Compound Incorporating Dipicolinate (چکیده)
88 - Pyrimido[5,4-e]tetrazolo[5,1-b][1,3,4]thiadiazines as a new heterocyclic system (چکیده)
89 - Synthesis of New Heterocyclic Derivatives Based on Isothiazolopyrimidine (چکیده)
90 - Insight into the connecting roles of interaction synthons and water clusters within different transition metal coordination compounds of pyridine-2,5-dicarboxylic acid: experimental and theoretical studies (چکیده)
91 - Synthesis of new derivatives of 2-Substitueted 4-(4-methyl-12Hpyrimido[4,5:5,6][1,4]thiazino[2,3-b]quinoxalin-2-yl) (چکیده)
92 - Synthesis of new pyrimido[4,5-d]pyrimidin-4(1H)-one derivatives in the presence of ferric hydrogensulfate (چکیده)
93 - Synthesis of new derivatives of pyrimido[5,4-e][1,2,4]triazolo[3,4-b][1,3,4]thiadiazine and stadise of their biological activities (چکیده)
94 - Synthesis of new derivatives ofdipyrimido[4,5-b:5,4-e][1,4]thiazine and their enzyme inhibitory activity assessment on soybean 15-lipoxygenase (چکیده)
95 - Synthesis of new derivatives of pyrimido[4,5-c] pyridazine (چکیده)
96 - A facile approach for the synthesis of new derivatives of pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidine (چکیده)
97 - Synthesis of new heterocyclic system: [1,3]oxazolo[4,5-d] [1,2,4]triazolo[4,3-a] pyrimidine (چکیده)
98 - Synthesis of new pyrazolo[3,4-d]pyrimidine derivatives as potential antibacterial agents (چکیده)
99 - Inhibitive assessment of 1-(7-methyl-5-morpholin-4-ylthiazolo[4,5-d]pyrimidin-2-yl)-hydrazine as a corrosion inhibitor for mild steel in sulfuric acid solution (چکیده)
100 - One-pot three component synthesis of 3,4-dihydropyrimidine-2-ones/thiones using plant parts as biocatalyst (چکیده)
101 - Synthesis of new derivatives of pyrimido[5,4-e ][1,2,4]triazolo[3,4-b ][1,3,4]thiadiazine and their enzyme inhibitory activity assessment onsoybean 15-lipoxygenase (چکیده)
102 - Comprehensive studies of non-covalent interactions within four new Cu(II) supramolecules (چکیده)
103 - An efficient regioselective synthesis of highly functionalized 3-oxo-2,3-dihydro-5H-thiazolo[3,2-a]pyrimidines via an isocyanide-based three-component reaction (چکیده)
104 - X-ray structure of 1D-coordination polymer of copperII bearing 1,4-pyrazine-2,3-dicarboxylic acid and 2-aminopyrimidine (چکیده)
105 - Synthesis of Two New Heterocyclic Systems: Furo[3-,2-:5,6]pyrimido[2,1-c][1,2,4]triazines and Furo[3,2-e][1,2,3,4]tetrazolo[1,5-a]pyrimidine (چکیده)
106 - Structural aspects and solution behavior of metallosupramolecular compound of FeIII ion obtained by proton transfer (چکیده)
107 - Synthesis, experimental and theoretical characterization of Cu(II) complex of 2-chloropyrimidine (چکیده)
108 - Binuclear complex of Cu(II) containing 4-hydroxypyridine-2,6-dicarboxylic acid and 2-amino-4-methylpyrimidine ligands: Synthesis, X-ray crystal structure and thermalproperties (چکیده)
109 - Two novel mononuclear and binuclear complexes of Ni(II) and Ca(II) atoms containing 4-hydroxy-pyridine-2,6-dicarboxylic acid, 2-aminopyrimidine, and2,4,6-triamino-1,3,5-triazine ligands: Synthesis, X-ray crystal structure andthermal property (چکیده)
110 - Thiazolo[4,5- d ]pyrimidines: synthesis and antibacterial evaluation (چکیده)
111 - Synthesis and Characterization of Two Organic-Inorganic Hybrids Obtained fromReaction of Keggin-typ Polyoxometallates with 2-Amino-4-methyl pyridine and 2-Aminopyrimidine Spacers (چکیده)
112 - Synthesis of 8-aryl-1H-pyrazolo[4,3-e][1,2,4]triazolo[4,3-a] pyrimidine-4(5H)-imine by Using the Preyssler’s anion [NaP5W30O110]14− as a Green and Eco-friendly Catalyst (چکیده)
113 - Synthesis of novel furo[3',2':5,6]pyrimido[2,1-c][1,2,4]triazines and furo[3,2-e][1,2,3,4]tetrazolo[1,5-a]pyrimidine (چکیده)
114 - Facile synthesis of the new derivatives of 3-alkylsulfanyl-5-chloro-7-methyl- [1,2,4]triazolo[4,3-c]pyrimidine (چکیده)
115 - Keggin Heteropolyacid Catalyzed Synthesis of Isoxazolo-[5,4-d] pyrimidine-4,6(5H,7H)-diones at room temperature (چکیده)
116 - Synthesis and Characterization of a New Mixed-Ligand Complex containing 2- aminopyrimidine and pyridine-2,6-dicarboxylic acid (چکیده)
117 - A new supramolecular compound of chrome(III): Synthesis, spectroscopic characterization, X-ray crystal structure, DFT, and solution studies (چکیده)
118 - Fe(III) and cobalt(II) coordination compounds of 5-bromo-6-methyl-2-morpholinepyrimidinium-4-aminepyridine-2,6-dicarboxylate (چکیده)
119 - Molecular iodine promoted synthesis of new pyrazolo[3,4-d] pyrimidine derivatives as potential antibacterial agents (چکیده)
120 - Iodine catalysed synthesis and antibacterial evaluation of thieno-[2,3-d]pyrimidine derivatives (چکیده)
121 - Investigation into the regioisomeric composition of somefused pyrimidines: 1H NMR and theoretical studies (چکیده)
122 - Synthesis of Novel 3,6-disubstituted furo[2,3-d]pyrimidine (چکیده)
123 - One-pot synthesis of substituted 2-amino-3-furonitriles (چکیده)
124 - Isolation of Intermediates in the Synthesis of Thieno[2,3-d]pyrimidine-2,4(1H,3H)-diones Using Microwave Irradiation (چکیده)
125 - Synthesis of pyrido[30 ,20 :4,5]thieno[2,3-e][1,2,4]triazolo[4,3-a]pyrimidin- 5(4H)-one derivatives (چکیده)
126 - Synthesis of optically active imidazo[1,2-a]pyrimidin-3(2H)-ones (چکیده)
127 - Regioselective synthesis of 3-Benzylthiazolo [3,2-a] pyrimidones and 3-Benzyl-thiazolo [3,2-c] pyrim (چکیده)
128 - Synthesis of a Novel Heterocyclic System, [1,2,4] Triazino[1,2- a ]Pyrimido [4,5- e ] [1,3,4] Thiadiazines (چکیده)
129 - Synthesis of a novel heterocyclic system: Oxazolo[3,2-c]pyrimidine (چکیده)
130 - Synthesis of 1H-Pyrazolo[4′,3′:5,6]pyrimido[2,1-a]isoindol-4(10H)-ones: Derivatives of a New Ring System (چکیده)
131 - A Novel Synthesis of Imidazo[1,2-c]pyrimidines (چکیده)
132 - New access to thiazolo[4,5-d]pyrimidine derivativess (چکیده)
