bluuebunny/crossref_metadata_2025_split huggingface dataset:
Isoindolo[1′,2′:2,3]pyrido[3′′,2′′:4′,5′]thieno[3′,2′:4,5]pyrimido [1,6‐a]benzimidazol‐8(12bH)‐one. A Novel Polycondensed Heterocyclic System
Authors: Makhmud Mokhamed Abdel‐Moneim , Vasilin V. K. , Krapivin G. D. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Sodium Hydride Mediated Cascade Reaction Towards the Synthesis of 1,5‐Disubstituted Uracil from Cyanamides Derived from Baylis—Hillman Adducts.
Authors: Nag S. , Yadav G. P. , Maulik P. R. , Batra S. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Simple and Environmentally Benign Method for the Synthesis of Naphthoxazin‐3‐one Derivatives.
Authors: Dabiri Minoo , Delbari Akram Sadat , Bazgir Ayoob 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Heterocycles [h]Fused on 4‐Oxoquinoline‐3‐carboxylic Acid. Part 2. A Facile Synthesis of Some 2,7‐Dioxo[1,4]thiazin[2,3‐h]quinoline‐8‐carboxylic Acids.
Authors: Al‐Huniti Mohammed H. , Zahra Jalal A. , El‐Abadelah Mustafa M. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and anti‐HIV Activity of 4‐Chloro‐2‐mercapto‐N‐ (1,4,5,6‐tetrahydro‐1,2,4‐triazin‐3‐yl)benzenesulfonamide Derivatives.
Authors: Pomarnacka E. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Enantioselective Synthesis of Aminobenzazepinones.
Authors: Prasad C. V. C. , Mercer Stepen E. , Dubowchik Gene M. , Macor John E. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Novel Ligand‐Free, Cobalt‐Catalyzed [2 + 2 + 2] Cycloadditions: Syntheses of 1,4‐Disilatetralins and 1,3‐Disilaindans.
Authors: Doszczak Leszek , Fey Philipp , Tacke Reinhold 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Ti(O‐iPr)4‐Catalyzed Hydrophosphonylation of Activated Alkenes by Diphenyl H‐Phosphonate.
Authors: Yao Qiang 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Structures of New Cucurbitane‐Type Triterpenes and Glycosides, Karavilagenins D and E, and Karavilosides VI, VII, VIII, IX, X, and XI, from the Fruit of Momordica charantia.
Authors: Matsuda Hisashi , Nakamura Seikou , Murakami Toshiyuki , Yoshikawa Masayuki 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Biological Evaluation of New Taxoids Derived from 2‐Deacetoxytaxinine J.
Authors: Botta Maurizio , Armaroli Silvia , Castagnolo Daniele , Fontana Gabriele , Pera Paula , Bombardelli Ezio 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthetic Approach to exo‐Glycals from 1‐C‐Vinyl‐D‐glycopyranose Derivatives via an SN1′‐Substitution Mechanism.
Authors: Yamanoi Takashi , Nara Yukari , Matsuda Sho , Oda Yoshiki , Yoshida Akihiro , Katsuraya Kaname , Watanabe Mikio 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Diels—Alder Approach to (‐)‐Ovalicin (I).
Authors: Tiefenbacher Konrad , Arion Vladimir B. , Mulzer Johann 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A General Route to 4‐C‐Substituted Pyrimidine Nucleosides.
Authors: Hennecke Ulrich , Kuch David , Carell Thoms 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Wittig—Horner—Emmons Reactions of Triethyl 3‐Methylphosphonocrotonate with 3‐Formylchromones en route to Benzophenone‐Based Retinoid Candidates.
Authors: Sun Weilin , Desai Shyam , Piao Huri , Carroll Patrick , Canney Daniel J. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Trichlorocyanuric Acid: An Efficient Reagent for One‐Pot Synthesis of Ptychodiscus brevis (PB‐1) Toxin and Its Derivatives.
Authors: Gupta Arvind K. , Acharya Jyotiranjan , Dubey Devendra K. , Kaushik Mahabir P. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of (S)‐2‐Ethoxy‐3‐phenylpropanoic Acid Derivatives and Their Insulin‐Sensitizing Activity.
Authors: Wu Ying‐Hua , Xia Bing 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Design and Synthesis of Chiral α,α‐Disubstituted Amino Acids and Conformational Study of Their Oligopeptides
Authors: Tanaka Masakazu 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Fluorinated Inhibitors of Matrix Metalloproteinases
Authors: Viani Fiorenza , Bruche Luca , Candiani Gabriele , Huguenot Florent , Jagodzinska Monika , Maffezzoni Raffaella , Moussier Nathalie , Sani Monica , Sinisi Roberta , Zanda Matteo 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Rare Earth Triflate Catalysts in the Synthesis of Vitamin E and Its Derivatives
Authors: Bonrath Werner , Dittel Claus , Giraudi Lisa , Netscher Thomas , Pabst Thomas 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Nitric Oxide, a Double Edged Sword in Cancer Biology: Searching for Therapeutic Opportunities
Authors: Mocellin Simone , Bronte Vincenzo , Nitti Donato 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Pathoplasticity of bulimic features and interpersonal problems
Authors: Hopwood Christopher J. , Clarke Analesa N. , Perez Marisol 
Published: July 2007

AbstractObjective:Recent research suggests that interpersonal problems and some forms of psychopathology are pathoplastic, or that they mutually affect one another in nonetiological ways. In the current study, the pathoplasticity of bulimic features and interpersonal problems was tested.Method:Inventory of Interpersonal Problems‐64 data from 130 women with scores in the top quartile on the Bulimia scale of the Eating Disorder Inventory‐2 from a sample of 517 college undergraduates were cluster analyzed. Age, weight, and scores on psychopathology scales were tested for mean differences across the four quadrants of the interpersonal problems circumplex.Results:Consistent with the pathoplasticity hypothesis, cluster means did not differ on external variables. Furthermore, bulimic features and interpersonal problems independently predicted depression in the total sample.Conclusion:The interpersonal problems reported in the current study suggest differential treatment process that could inform the therapeutic relationship and help prevent premature termination. © 2007 by Wiley Periodicals, Inc. Int J Eat Disord 2007
Photocycloaddition in Natural Product Synthesis
Authors: Iriondo‐Alberdi Jone , Greaney Michael F. 
Published: July 2007

AbstractThe application of photocycloaddition to natural product synthesis continues to produce innovative and effective strategies for key bond constructions in the complex molecule environment. This Microreview surveys the recent literature for examples that illustrate the power and versatility of photocycloaddition chemistry, drawing from [2+2], [3+2], [4+2], [5+2] and [4+4] reactions. The discussion is confined to natural product syntheses, and will include photocycloaddition key steps in both completed routes and those in progress.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
Recent Developments in Catalytic Aryl Coupling Reactions
Authors: Catellani Marta , Motti Elena , Della Ca' Nicola , Ferraccioli Raffaella 
Published: July 2007

AbstractThe present microreview is aimed at describing the evolution of the methodology used in aryl coupling reactions towards catalytically efficient and highly selective procedures, which have been achieved through the use of assisted and metallacycle‐directed reactions. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
Fabrication of Active Horseradish Peroxidase Micropatterns with a High Resolution by Scanning Electrochemical Microscopy
Authors: Li Xuemei , Geng Qiaohong , Wang Yingying , Si Zhikun , Jiang Wei , Zhang Xiaoli , Jin Wenrui 
Published: July 2007

AbstractWe used a new reactive species OH− to fabricate active horseradish peroxidase (HRP) micropatterns with a high resolution by scanning electrochemical microscopy (SECM) coupled with a carbon fiber disk electrode as the SECM tip. In this method, except for active HRP micropatterns predesigned other regions on a HRP‐immobilized substrate were deactivated by OH− generated at the tip held at −1.7 V in 1.0 mol/L KCl containing 2.0×10−3 mol/L benzoquinone (BQ) (pH 8.0). The feedback mode of SECM with a tip potential of −0.2 V was used to characterize the active HRP micropatterns in 1.0 mol/L KCl containing 2.0×10−3 mol/L BQ and 2.0×10−3 mol/L H2O2.
Analysis of a second‐order upwind method for the simulation of solute transport in 2D shallow water flow
Authors: Murillo J. , García‐Navarro P. , Burguete J. 
Published: July 2007

AbstractA two‐dimensional model for the simulation of solute transport by convection and diffusion into shallow water flow over variable bottom is presented. It is based on a finite volume method over triangular unstructured grids. A first‐order upwind technique, a second order in space and time and an extended first‐order method are applied to solve the non‐diffusive terms in both the flow and solute equations and a centred implicit discretization is applied to the diffusion terms. The stability constraints are studied and the form to avoid oscillatory results in the solute concentration in the presence of complex flow situations is detailed. Some comparisons are carried out in order to show the performance in terms of accuracy of the different options. Copyright © 2007 John Wiley & Sons, Ltd.
Forecasting domestic liquidity during a crisis: what works best?
Authors: Moore Winston R. 
Published: July 2007

AbstractThe 1990s were a turbulent time for Latin American and Caribbean countries. During this period, the region suffered from no less than 16 banking crises. One the most important determinants of the severity of banking a crisis is commercial bank liquidity. Banking systems that are relatively liquid are better able to deal with the large deposit withdrawals which tend to accompany bank runs. This study provides an assessment of whether behavioural models, linear time series or nonlinear time series models are better able to account for liquidity dynamics during a crisis.  Copyright © 2007 John Wiley & Sons, Ltd.
Treatment of chronic dilated cardiomyopathy with immunoadsorption using the staphylococcal A‐Agarose column: A comparison of immunoglobulin reduction using two different techniques
Authors: Burgstaler Edwin A. , Cooper Leslie T. , Winters Jeffrey L. 
Published: July 2007

AbstractAuto‐antibodies to myocardial antigens have been implicated in the pathogenesis of chronic dilated cardiomyopathy (DCM). A protein A immunoadsorption affinity column system was used to remove IgG antibodies, particularly IgG3. Two techniques, the standard technique (T‐1) used for removal of IgG Factor VIII inhibitors and a technique (T‐2) designed to enhance IgG3 removal and address issues in venous access, minimize positive fluid balance, and adverse reactions were compared. A total of four patients were treated, two patients were treated for 5 consecutive days with each technique. T‐2 resulted in larger, but not significantly so, IgG3 reduction (70% and 63%) than T‐1 (53% and 59%). Both techniques lowered total IgG levels by ≥93%. Because of venous access problems, 60% of T‐1 procedures reached the plasma volume target versus 100% for T‐2. Positive fluid balance was significantly lower for T‐2 (+507 ± 465) ml versus T‐1 (+2,206 ± 724) ml. Overall adverse event (AE) rate (T‐1:16, T‐2:15) was similar between the techniques but demonstrated a statistically significant difference in the types of reactions that occurred. All AE were mild in nature, common to other apheresis procedures, and were easily managed. This small study, demonstrated that a modified technique (T‐2) with superior fluid balance should be used when treating DCM with the Immunosorba® system. J. Clin. Apheresis. 2007 © 2007 Wiley‐Liss, Inc.
Tracking planar orientations of active MRI needles
Authors: Sathyanarayana Shashank , Aksit Pelin , Arepally Aravind , Karmarkar Parag V. , Solaiyappan Meiyappan , Atalar Ergin 
Published: July 2007

AbstractPurposeTo determine and track the planar orientation of active interventional devices without using localizing RF microcoils.Materials and MethodsAn image‐based tracking method that determines a device's orientation using projection images was developed. An automated and a manual detection scheme were implemented. The method was demonstrated in an in vivo mesocaval puncture procedure in swine, which required accurate orientation of an active transvascular needle catheter.ResultsThe plane of the catheter was determined using two projection images. The scan plane was adjusted automatically to follow the catheter plane, and its orientation with respect to a previously acquired target plane was displayed. The algorithm facilitated navigation for a fast and accurate puncture.ConclusionUsing image‐based techniques, with no mechanical design changes, the orientation of an active intravascular probe could be tracked. J. Magn. Reson. Imaging 2007. © 2007 Wiley‐Liss, Inc.
Focal pancreatic mass: Distinction of pancreatic cancer from chronic pancreatitis using gadolinium‐enhanced 3D‐gradient‐echo MRI
Authors: Kim Jai K. , Altun Ersan , Elias Jorge , Pamuklar Ertan , Rivero Hedrick , Semelka Richard C. 
Published: July 2007

AbstractPurposeTo determine the accuracy of MRI including T1‐weighted gadolinium (Gd)‐enhanced three‐dimensional‐gradient‐echo (3D‐GE) sequences to distinguish pancreatic cancer from chronic pancreatitis in patients with pancreatic mass or focal enlargement.Materials and MethodsThe study included 22 patients (15 males and seven females; mean age ± SD, 56.2 ± 11.5 years) with pancreatic mass or focal enlargement. Fourteen had pancreatic carcinoma and eight had chronic pancreatitis based on the histopathological and clinical findings. MRI examinations of all patients were retrospectively evaluated by two independent reviewers for the predetermined imaging findings of carcinoma and chronic pancreatitis. The accuracy of MRI for differentiating pancreatic carcinoma from chronic pancreatitis was determined. MRI findings of both entities were compared using t‐tests, chi‐squared tests, and logistic regression analyses for the differentiation of these two entities. The extent of agreement between two reviewers was determined with Kappa statistics.ResultsThe sensitivity and specificity of MRI including T1‐weighted 3D‐GE sequences for differentiating pancreatic carcinoma from chronic pancreatitis were 93% (13/14) and 75% (6/8), respectively. The most discriminative finding for pancreatic carcinoma was relative demarcation of the mass compared to background pancreas in contrast to chronic pancreatitis on post‐Gd 3D‐GRE sequences (P < 0.05).ConclusionMRI including Gd‐enhanced T1‐weighted 3D‐GE sequences can differentiate pancreatic carcinoma from chronic pancreatitis successfully in most cases. J. Magn. Reson. Imaging 2007. © 2007 Wiley‐Liss, Inc.
Identification of phosphoproteins and determination of phosphorylation sites by zirconium dioxide enrichment and SELDI‐MS/MS
Authors: Cuccurullo Manuela , Schlosser Gitta , Cacace Giuseppina , Malorni Livia , Pocsfalvi Gabriella 
Published: July 2007

AbstractReversible protein phosphorylation mediated by protein kinases and phosphatases is the most studied post‐translational modification. Efficient characterization of phosphoproteomes is hampered by (1) low stoechiometry, (2) the dynamic nature of the phosphorylation process and (3) the difficulties of mass spectrometry to identify phosphoproteins from complex mixtures and to determine their sites of phosphorylation. Combination of the phosphopeptide enrichment method with MALDI‐TOFMS, or alternatively, with HPLC‐ESI‐MS/MS and MS3 analysis was shown to be a step forward for the successful application of MS in the study of protein phosphorylation. In our study we used phosphopeptide enrichment performed in a simple single‐tube experiment using zirconium dioxide (ZrO2). A simple protein mixture containing precipitated bovine milk caseins was enzymatically digested and the mixture of tryptic fragments was analysed before and after enrichment using nanoflow HPLC‐ESI‐MS/MS and surface‐enhanced laser desorption/ionization (SELDI)‐MS/MS on QqTOF instruments to compare the efficiency of the two methods in the determination of phosphorylation sites. Both approaches confirm the high selectivity obtained by the use of batch‐wise, ZrO2‐based protocol using di‐ammonium phosphate as the eluting buffer. More phosphorylation sites (five for β‐casein and three for αS1‐casein) were characterized by SELDI‐MS/MS than by nanoflow HPLC‐ESI‐MS/MS. Therefore, ZrO2‐based phosphopeptide enrichment combined with SELDI‐MS/MS is an attractive alternative to previously reported approaches for the study of protein phosphorylation in mixtures of low complexity with the advance of fast in situ peptide purification. The method was limited to successful analysis of high‐abundance proteins. Only one phosphorylation site was determined for the minor casein component αS2‐casein by ESI‐MS/MS and none for κ‐casein. Therefore an improvement in enrichment efficiency, especially for successful phosphoproteomic applications, is needed. Copyright © 2007 John Wiley & Sons, Ltd.
Determination of thiazolidine‐4‐carboxylates in urine by chloroformate derivatization and gas chromatography‐electron impact mass spectrometry
Authors: Shin Ho‐Sang , Ahn Hye‐Sil , Lee Byung‐Hoon 
Published: July 2007

AbstractThe derivatization method of thiazolidine‐4‐carboxylic acid (TZCA) and methyl‐thiazolidine‐4‐carboxylic acid (Me‐TZCA) in urine with alcohol/chloroformate was achieved. TZCA and Me‐TZCA were derivatized in one step in urine with ethyl chloroformate in 1 min at room temperature. The derivatives of TZCA and Me‐TZCA had very good chromatographic properties and offered very sensitive response for gas chromatography‐electron impact ionization‐mass spectrometry (GC‐EI‐MS). On the basis of derivatization, the method for simultaneous determination of TZCA and Me‐TZCA in human urine was developed. Deuterated Me‐TZCA (Me‐TZCA‐d4) was synthesized as the internal standard (IS) for the analysis of urine samples. TZCA and Me‐TZCA were derivatized and extracted from urine at pH 9.5 with toluene, and then the dried extract was dissolved with 100 µl ethyl acetate and injected in GC/MS system. The recoveries of TZCA and Me‐TZCA were about 102 and 103%, respectively, at the concentration of 0.05 mg/l. The method detection limits (MDL) were 1.0 and 0.5 µg/l, respectively, for TZCA and Me‐TZCA in 1 ml human urine. The coefficients of variation of TZCA and Me‐TZCA were less than 6% at the concentrations of 0.05 and 0.2 mg/l, respectively. To assess the formation of TZCA during inhalation with formaldehyde (FA) (about 3.1 and 38.1 ppm FA in air), urine samples from rats were taken during 3 days after initiation of treatment. The mean amount of TZCA determined was 0.07 mg/l in control group and 0.18 mg/l during treatment with 3.1 ppm. The TZCA levels increased up to about 1.01 mg/l during treatment with 38.1 ppm. It is planned to study whether urinary TZCA can be used as an indicator in the biological monitoring of exposure to FA. Copyright © 2007 John Wiley & Sons, Ltd.