[PDF] Top 20 Synthesis and antiinflammatory activity of novel pyrazolo [3,4 d] pyrimidines
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Synthesis and antiinflammatory activity of novel pyrazolo [3,4 d] pyrimidines
... 0.007 mol of compound (5) was taken in single neck R.B flask to this added 0.0014 mol of benzoyl chlorides (4-substituted) and hunig base in dimethyl formamide and allowed for stirring. After completion of the ... See full document
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Synthesis and antitumor activity of novel pyrazolo[3,4 d]pyrimidines and related heterocycles
... of pyrazolo[3,4-d]pyrimidine with imino 2a or hydrazine 3 groups at position 4 of the pyrimidine ...the pyrazolo[3,4-d]pyrimidine nucleus and replaced the 2-(2-furyl)-triazole ... See full document
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A facile synthesis, in vitro antiinflammatory and antioxidant activity of novel benzimidazolylpyrano[2,3-d][1,3]thiazolocarbonitriles
... performed using DPPH method and the results were found in Table 2. All the synthesized compounds produced a concentration dependant scavenging of free radical, DPPH. The IC 50 values of all the compounds (5a-j) were ... See full document
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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
... organic synthesis [10–17]. Recently, the synthesis of biologically active compounds based on pyrazolo[3,4- d]pyridazines systems are of outstanding importance for medicinal and biological ... See full document
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H NMR, 13 C NMR, mass spectra and elemental analysis. All the
... the synthesis of a novel series of pyrazolo[3,4-d]pyrimidine derivatives by incorporating the phenothiazine and pyrazolo[3,4- d]pyrimidine in a single molecular framework with a ... See full document
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SYNTHESIS AND ANTIINFLAMMATORY ACTIVITY OF NOVEL PYRIMIDINO BENZOTHIAZOLE AMINE DERIVATIVES
... of activity has been listed in table ...in activity from 1 st hour to second ...peak activity at the second hour and rest of the molecules showed peak activity at 3 rd hour of ... See full document
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Synthesis and antibacterial activity of novel hydrazides containing thienopyrimidine
... 1-(5,6,7,8-tetrehydrobenzo-[4,5]thieno[2,3-d]pyrimidine-4-yl)-pyrolidine-2-carboxylic acid ethyl ester (5b)To a clear solution of compound 4b (20 g, 0.089 mol) in Methanol 200ml was added L-Proline Ethyl ... See full document
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Synthesis and antiviral activity of 1,3,4 oxadiazolyl selenopheno[2,3 d]pyrimidines as novel Bluetongue virus inhibitors
... 1, 3, 4–oxadiazole ring occupy an outstanding place in medicinal chemistry due to its significant biological properties such as antimicrobial [16-21], antituberculosis [22- 24] and anticancer ...a ... See full document
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Synthesis, characterisation and antimicrobial activity of novel substituted pyrimidines
... IIa, IIb, IIc, IId, IIe, IIf (0.01 M) of compound was mixed with NaOH solution .The reaction mixture was cooled on ice bath. Approximately 2ml Benzoyl Chloride was added drop wise and shake. Allow the reaction mixture to ... See full document
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Synthesis of Some Derivatives of the 4H-pyrido[4′,3′:5,6]pyrano[2,3-d]pyrimidines
... Examples of structures with 4H-pyrido [4',3':5,6] pyrano [2,3-d] pyrimidine fragment are practically absent in the patent and scientific literature for now. However it should be expected that such ... See full document
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Synthesis of novel thienopyrimidines and evaluation for their antiinflammatory activity
... To a suspension of (6) (0.01 mol) in 10 ml DMF, 0.01 mol of methane sulphonyl chloride or P-toluene sulphonyl chloride and potassium carbonate were added and the reaction mixture was stirred for 4 h. The resulting ... See full document
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Design, synthesis and cytotoxic activity of some novel compounds containing pyrazolo[3,4- d]pyrimidine nucleus
... chloromethyl-3-methyl-1-phenyl pyrazolo [3, 4-d] pyrimidin-4-one (3) which was used as a starting material for the synthesis of novel ...afford 3. ... See full document
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Novel synthesis and antibacterial activity of 3 amino 8 chloro 4 oxo (2H)/Aryl/Heteryl pyrazolo [3′′′,4′′′: 4,5] pyrimido[2,1 b][1,3]benzothiazoles
... - 4-oxo - 4H – pyrimido [2,1-b][1,3]benzothiazole (3) on reaction in presence of dimethyl formamide and catalytic amount of anhydrous potassium with hydrazine hydrate / aryl hydrazine / heteryl hydrazine ... See full document
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SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF SOME NOVEL 1 PHENYL 1 H PYRAZOLO[3,4 D]PYRIMIDINE DERIVATIVES
... To a solution of N-phenyl-2-{2-[(1-phenyl-1H- pyrazolo[3,4-d]pyrimidin-4-yl) amino] acetyl} hydrazinecarbothioamide (4) (0.1gm, 0.25 mmol) in ethanol (10mL), sodium hydroxide (0.1gm, 2.5 mmol) ... See full document
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Synthesis and the antimicrobial activity study of the novel derivatives of 4 oxo and 4 thio 5 methyl 6 (1,2,4 oxadiazol 5 yl)thieno[2,3 d]pyrimidines
... complicated the chlorination step. To accomplish the chlorination 48 hours of the compound 3 boiling in phosphorus oxychloride was required. The unstable 4-chloroproduct was immediately reacted with ... See full document
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Synthesis of novel furobenzopyrone derivatives and evaluation of their antimicrobial and antiinflammatory activity
... target compounds is not shown any were in the manuscript. Scheme was given in the orginal manuscript send by us. here we are attaching the word file containing the scheme kindly include it in the manuscript for ... See full document
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“NOVEL SYNTHETIC APPROACH OF SOME 3-AMINO-4-OXO-2-SUBSTITUTED BENZOTHIAZOLYL) PYRAZOLO [3,4-B] PYRIDO[1,2-A] PYRIMIDINE DERIVATIVES AND THEIR ANTIMICROBIAL ACTIVITY” by Sambhaji P. Vartale*, Nilesh K. Halikar and Sarala N. Kalyankar, India.
... antibacterial activity against gram-positive species ...compounds 4, compound 4g (9, 12, 13, 10 mm) and 4h (11, 11, 10, 12) showed higher zone of inhibition against ...OCH 3 & Cl ... See full document
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Synthesis and antitumor activity of novel pyrazolo[3,4 d]pyrimidin 4(5H) one derivatives
... from pyrazolo[3,4-d]pyrimidine ethyl ester 4 and its corresponding acid hydrazide 5, several new compounds were synthesized such as schiff bases 6a-e, acetyl azide derivative 7, phthalimido ... See full document
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Utility of Arylidenes in Heterocyclic Synthesis; Synthesis of Pyrimidines, 1,8 Naphthyridine and Pyrazolo[3,4 d]Pyrimidine
... organic synthesis because it has polyfunctionally groups which can be cyclized by different reagents to give poly heterocyclic ...afford 4-amino-6-(1-cyano-2-(4-(dimethylamino)phenyl)vinyl) ... See full document
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Preparation and Biological Evaluation of 3-amino-4-aryl-4, 5- dihydro-1-N-tolyl pyrazolo [3, 4-d] pyrimidines Derivative
... fungicidal activity using cup plate method. The cultures were maintained on Sabouraud’s agar for72 hours this gave an optimum growth of the test fungal spores Each purified compound was dissolved in DMF sterilized ... See full document
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