Search Results - "Babu, N. Jagadeesh"
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Nitrofurantoin-p-aminobenzoic acid cocrystal: hydration stability and dissolution rate studies
Published in Journal of pharmaceutical sciences (01-08-2011)“…Nitrofurantoin (NF) drug is known to transform to a hydrate form in aqueous medium. The hydration stability and dissolution rate of a few cocrystals of NF were…”
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Crystal Engineering of Stable Temozolomide Cocrystals
Published in Chemistry, an Asian journal (01-10-2012)“…The antitumor prodrug temozolomide (TMZ) decomposes in aqueous medium of pH≥7 but is relatively stable under acidic conditions. Pure TMZ is obtained as a white…”
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3
Conformational and Synthon Polymorphism in Furosemide (Lasix)
Published in Crystal growth & design (07-04-2010)“…Two polymorphs of the well-known diuretic drug Lasix, generic name furosemide, are characterized by single crystal X-ray diffraction to give a trimorphic…”
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4
Sulfonamide−Pyridine-N-oxide Cocrystals
Published in Crystal growth & design (04-05-2011)“…Hydrogen-bond motifs for the supramolecular synthesis of sulfonamide−pyridine-N-oxide complexes were derived from the analysis of cocrystal structures of aryl…”
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5
Solubility Advantage of Amorphous Drugs and Pharmaceutical Cocrystals
Published in Crystal growth & design (06-07-2011)“…The current phase of drug development is witnessing an oncoming crisis due to the combined effects of increasing R&D costs, decreasing number of new drug…”
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Anti-tubercular agents. Part 8: Synthesis, antibacterial and antitubercular activity of 5-nitrofuran based 1,2,3-triazoles
Published in Bioorganic & medicinal chemistry letters (15-12-2013)“…A series of 5-nitrofuran–triazole conjugates were synthesized and evaluated for their antimicrobial activity against both Gram-positive and Gram-negative…”
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Polymorphs and Polymorphic Cocrystals of Temozolomide
Published in Chemistry, an Asian journal (07-07-2008)“…Crystal polymorphism in the antitumor drug temozolomide (TMZ), cocrystals of TMZ with 4,4′‐bipyridine‐N,N′‐dioxide (BPNO), and solid‐state stability were…”
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One-Pot Synthesis of 2-Imino-4-(trifluoromethyl)thiazolidin-4-ol Derivatives in a Three-Component Reaction: Application to Structurally Diverse Scaffolds of Biological Interest Through Subsequent Reactions
Published in European journal of organic chemistry (01-04-2014)“…A highly efficient method for the synthesis of 2‐imino‐4‐(trifluoromethyl)thiazolidin‐4‐ol derivatives has been achieved by the one‐pot, three‐component…”
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Conformation analysis of 1″,4″-Dispirocyclohexane-6,6′-bis(benzothiazoline): Combined IR, Raman, XRD and DFT approach
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (15-03-2016)“…The subject of the study is the structure and conformation of 1″,4″-Dispiro-cyclohexane-6,6′-bis(benzothiazoline), a dispiro compound that has a cyclohexyl…”
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Multiple Z‘ in Carboxylic Acid−Pyridine Trimer Synthon and Kagomé Lattice in the Structure of 5-Methylpyrazine-2,3-dicarboxylic Acid
Published in Crystal growth & design (06-09-2006)“…We show the requirement of Z‘ ≥ 2 for assembling an acid−pyridine trimer synthon in small, dissymmetric molecules. 5-Methylpyrazine-2,3-dicarboxylic acid (1)…”
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Synthesis of Novel Diverse Methoxybenzenes‐substituted 2H/4H‐chromene Derivatives in the Presence of InBr3 (5 mol%) and their Cytotoxic Activity
Published in Journal of heterocyclic chemistry (01-11-2017)“…A series of novel 2‐(trifluoromethyl)‐2H/4H‐chromene‐3‐carboxylate isomers 3 and 4 functionalized with diverse methoxybenzenes 2 at position 4 in compound 3…”
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12
Crystal Structures of Norfloxacin Hydrates
Published in Crystal growth & design (03-12-2008)“…Two novel hydrate forms of norfloxacin (NF) were serendipitously obtained during cocrystallization with eugenol. NF 1.25 hydrate and 1.125 hydrate are…”
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Journal Article Conference Proceeding -
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Amide−N-Oxide Heterosynthon and Amide Dimer Homosynthon in Cocrystals of Carboxamide Drugs and Pyridine N-Oxides
Published in Molecular pharmaceutics (01-05-2007)“…The carboxamide−pyridine N-oxide heterosynthon is sustained by syn(amide)N−H···O-(oxide) hydrogen bond and auxiliary (N-oxide)C−H···O(amide) interaction…”
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l-Proline catalyzed efficient and convenient synthesis of substituted 2H-chromenes by three-component reaction
Published in Tetrahedron letters (05-02-2014)“…A convenient and efficient method is described for the synthesis of alkoxy substituted 2H-chromens by l-proline catalyzed reaction of salicylaldehydes with…”
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Carboxamide-pyridine N-oxide heterosynthon for crystal engineering and pharmaceutical cocrystals
Published in Chemical communications (Cambridge, England) (01-01-2006)“…The novel carboxamide-pyridine N-oxide synthon, sustained via N-H...O- hydrogen bonding and C-H...O interaction, is shown to assemble isonicotinamide N-oxide…”
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An efficient regioselective reaction of indole with 2H-chromenes for the synthesis of new 4H-chromenes in environmentally benign media
Published in Tetrahedron letters (17-09-2014)“…An efficient regioselective, catalyst free, and green protocol has been developed for the synthesis of a novel class of 4H-chromene scaffolds at room…”
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Nonlinear optical studies and structure-activity relationship of chalcone derivatives with in silico insights
Published in Journal of molecular structure (05-07-2017)“…Nine chalcones were prepared via Claisen-Schmidt condensation, and characterized by UV–vis, IR, 1H NMR, 13C NMR and mass spectrometry. One of the…”
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Crystal Structures of N-Aryl-N′-4-Nitrophenyl Ureas: Molecular Conformation and Weak Interactions Direct the Strong Hydrogen Bond Synthon
Published in Crystal growth & design (01-12-2007)“…Hydrogen bond competition was studied in 21 X-ray crystal structures of N-X-phenyl-N′-p-nitrophenyl urea compounds (X = H, F, Cl, Br, I, CN, C≡CH, CONH2,…”
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An Efficient One‐Shot Metal‐Free Electrophilic Fluorination of 2‐Iminothiazolidine‐4‐one
Published in ChemistrySelect (Weinheim) (28-05-2020)“…A highly efficient one‐pot method for the synthesis of mono fluorinated thiazolidinone derivatives have been achieved through four component reaction of…”
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Water-Mediated Multicenter Synthon and Aromatic C−H → N Isostructurality
Published in Crystal growth & design (02-08-2006)“…A strong, cooperative O−H···O hydrogen bond network directs isostructurality in pyrazine tetracarboxylic acid, pyridine tetracarboxylic acid, and pyromellitic…”
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