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crystal structure (17) 17
chemistry, organic (14) 14
chemistry (13) 13
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betulin 3,28-di-o-tosylate (2) 2
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Monatshefte für Chemie - Chemical Monthly, ISSN 0026-9247, 1/2019, Volume 150, Issue 1, pp. 85 - 101
Journal Article
JOURNAL OF ORGANIC CHEMISTRY, ISSN 0022-3263, 03/2019, Volume 84, Issue 6, pp. 3595 - 3611
A general method for generation of allyl carbenium ions from propargyl silanes via a 1,2-silyl shift by Bronsted acids is reported. Two possible reaction... 
ARYL BROMIDES | VINYL | ALLENYLSILANES | CYCLOADDITIONS | SILICON | COMPLEXES | EFFICIENT SYNTHESIS | CHEMISTRY, ORGANIC | STEREOSELECTIVE-SYNTHESIS | RING ANNULATION | ALLYLSILANES
Journal Article
Acta Crystallographica Section C, ISSN 0108-2701, 12/2012, Volume 68, Issue 12, pp. o488 - o491
The combination of the active pharmaceutical ingredients furosemide [4‐chloro‐2‐(furan‐2‐ylmethylamino)‐5‐sulfamoylbenzoic acid] and pentoxifylline... 
CRYSTAL | CRYSTALLOGRAPHY | Crystallography, X-Ray | Molecular Structure | Hydrogen Bonding | Furosemide - chemistry | Pentoxifylline - chemistry | Pentoxifylline | Furosemide | Pharmacology | Hydrogen bonds | Crystallography | Crystal structure | Mathematical analysis | Ingredients | Graphs | Acetone | Hydrates | Pharmaceuticals
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 01/2020, Volume 61, Issue 3, p. 151405
[Display omitted] •Impurity standards for quality control of Quifenadine (Phencarol) are obtained.•Extraction–precipitation sequence allowed to isolate... 
Cationic rearrangement | Protonated cyclopropane | Quifenadine | Quinuclidine | CHEMISTRY, ORGANIC
Journal Article
Monatshefte für Chemie - Chemical Monthly, ISSN 0026-9247, 1/2019, Volume 150, Issue 1, pp. 21 - 28
Journal Article
Acta Crystallographica Section C, ISSN 2053-2296, 09/2015, Volume 71, Issue 9, pp. 752 - 758
Journal Article
European Journal of Organic Chemistry, ISSN 1434-193X, 09/2015, Volume 2015, Issue 25, pp. 5572 - 5584
Synthetic approaches to new N‐protected γ‐ and δ‐furanoid sugar amino acids (SAAs) or tetrahydrofuran amino acids were developed. SAAs have emerged as valuable... 
Carbohydrates | Amino acids | Carbopeptoids | Nitrogen heterocycles | Peptidomimetics | DESIGN | MIMETICS | ANALOGS | CHEMISTRY, ORGANIC | OLIGOMERS | ALPHA-HELIX MIMICRY | SUGAR AMINO-ACIDS | COMPENDIUM | SECONDARY STRUCTURE | CONFORMATIONAL-ANALYSIS | HYBRID PEPTIDES | Peptides | Triazoles
Journal Article
Acta Crystallographica Section E: Structure Reports Online, ISSN 1600-5368, 10/2014, Volume 70, Issue 11, pp. 379 - 381
The asymmetric unit of the title compound, C10H14N2O3, contains two independent molecules with similar conformations. In the both molecules, the cyclohexene... 
nitroacetaldehyde | crystal structure | Knoevenagel-type condensation | nitrodienamines | hydrogen bonds
Journal Article
Crystal Growth and Design, ISSN 1528-7483, 08/2015, Volume 15, Issue 8, pp. 3652 - 3660
To obtain new cryastal forms with altered physicochemical properties and to get insight into the driving forces guiding cocrystallization, we performed... 
CRYSTALLIZATION | DESIGN | COMPLEX | CRYSTAL-STRUCTURE PREDICTION | NICOTINAMIDE | POLYMORPH | MATERIALS SCIENCE, MULTIDISCIPLINARY | PHARMACEUTICAL COCRYSTALS | CRYSTALLOGRAPHY | CHEMISTRY, MULTIDISCIPLINARY | PHYSICOCHEMICAL PROPERTIES | CO-CRYSTAL | FUROSEMIDE
Journal Article
Tetrahedron: Asymmetry, ISSN 0957-4166, 09/2015, Volume 26, Issue 17, pp. 952 - 960
[Display omitted] Both 1,2:5,6-di-O-isopropylidene- and 1,2:5,6-di-O-cyclohexylidene-α-d-glucofuranose-derived ketones provided the corresponding branched... 
AZA-HENRY REACTION | D-GLUCOSAMINE | CHEMISTRY, ORGANIC | CHEMISTRY, PHYSICAL | ALDOL REACTIONS | ENANTIOSELECTIVE MICHAEL ADDITION | CHEMISTRY, INORGANIC & NUCLEAR | KETONES | ORGANOCATALYSTS | NITROOLEFINS | FRIEDEL-CRAFTS ALKYLATION | DERIVATIVES | NITROALKENES | Catalysis
Journal Article
Zeitschrift für Naturforschung B, ISSN 0932-0776, 02/2013, Volume 68, Issue 2, pp. 168 - 174
Four new crystalline forms of piroxicam have been obtained and studied by single-crystal X-ray structure analysis. These comprise an addition salt with... 
Piroxicam | X-Ray Crystal Structure | Cocrystals | Crystal Forms | X-ray crystal structure | Crystal forms | FUROSEMIDE | ORGANIC-COMPOUNDS | X-RAY | CHEMISTRY, ORGANIC | DIFFRACTION | POLYMORPHISM | CHEMISTRY, INORGANIC & NUCLEAR
Journal Article
Zeitschrift für Naturforschung B, ISSN 0932-0776, 07/2014, Volume 69, Issue 7, pp. 823 - 828
The crystal structure of the antiviral drug rimantadine hydrochloride, C Cl , has been elucidated by a single-crystal X-ray structure analysis. The structure... 
Rimantadine Hydrochloride | Crystal Shape | X-Ray Diffractometry | Crystallinity | Antiviral Drug | Aspect Ratio | Rimantadine hydrochloride | Antiviral drug | Aspect ratio | Crystal shape | X-ray diffractometry | VIRUS | INFLUENZA | CHEMISTRY, ORGANIC | CRYSTALLIZATION PROCESSES | COMBINATION | CHEMISTRY, INORGANIC & NUCLEAR
Journal Article
X-ray Structure Analysis Online, ISSN 1883-3578, 2012, Volume 28, Issue 1, pp. 5 - 6
Trimetazidine is an anti-ischemic agent. The structure of trimetazidine hydrochloride, C14H22N2O3·HCl, was determined by X-ray crystallography. The compound... 
Journal Article
Acta Crystallographica Section E: Structure Reports Online, ISSN 1600-5368, 2014, Volume 70, Issue 5, pp. o524 - o525
In the title compound, C11H20O8S, the furanose ring has a pseudorotation phase angle equal to 31.3° and assumes a3T4conformation, with deviations of 0.297 (4)... 
single-crystal X-ray study | T = 293 K | mean σ(C-C) = 0.002 A | wR factor = 0.065 | data-to-parameter ratio = 17.0 | R factor = 0.027
Journal Article
Zeitschrift für Naturforschung B, ISSN 0932-0776, 05/2012, Volume 67, Issue 5, pp. 491 - 494
Sildenafil citrate monohydrate, well known as Viagra , is a drug for the treatment of erectile dysfunction. Here we present the X-ray crystal structure of the... 
X-Ray | Crystal Structure | Sildenafil | Viagra | CITRATE | CHEMISTRY, ORGANIC | DIFFRACTION | CHEMISTRY, INORGANIC & NUCLEAR
Journal Article
Acta Crystallographica Section E: Structure Reports Online, ISSN 1600-5368, 11/2011, Volume 67, Issue 11, pp. o2851 - O2851
The structure of the title compound, pentoxifylline, C13H18N4O3, has been previously characterized as a triclinic polymorph [Pavelcik et al. (1989). Acta... 
CRYSTALLOGRAPHY | PENTOXIFYLLINE
Journal Article
Acta Crystallographica Section E: Structure Reports Online, ISSN 1600-5368, 11/2013, Volume 69, Issue 11, pp. o1677 - O1677
The title molecule, C19H18N4O2 {systematic name: (RS)-6-[2-(4-methoxyphenyl)-1H-benzimidazol-5-yl]-5-methyl-4,5-dihydropyridazin-3(2H)-one}, adopts an extended... 
CRYSTALLOGRAPHY
Journal Article
Acta crystallographica. Section E, Structure reports online, ISSN 1600-5368, 11/2014, Volume 70, Issue Pt 11, p. 379
The asymmetric unit of the title compound, C10H14N2O3, contains two independent mol-ecules with similar conformations. In the both mol-ecules, the cyclo-hexene... 
Journal Article
Acta Crystallographica Section E: Structure Reports Online, ISSN 2056-9890, 2014, Volume 70, Issue 8, pp. o879 - o880
The title compound, C44H62O6S2 {systematic name: (1R, 3aS, 5aR, 5bR, 7aR, 9S, 11aR, 11bR, 13aR,... 
betulin 3,28-di-O-tosylate | hydrogen bonding | natural product | CRYSTALLOGRAPHY | crystal structure
Journal Article
Acta Crystallographica Section E: Structure Reports Online, ISSN 1600-5368, 02/2014, Volume 70, Issue 2, pp. o108 - o109
The title synthetic analog of purine nucleosides, C16H16Cl2N4O7, has its acetylated beta-furanose ring in a 3 'beta-envelope conformation, with the... 
R factor = 0.046 | single-crystal X-ray study | data-to-parameter ratio = 14.7 | mean σ(C-C) = 0.005 Å | T = 296 K | wR factor = 0.107 | CRYSTALLOGRAPHY
Journal Article
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