bluuebunny/crossref_metadata_2025_split huggingface dataset:
Entropy‐Controlled Supramolecular Photochirogenesis: Enantiodifferentiating Z—E Photoisomerization of Cyclooctene Included and Sensitized by Permethylated 6‐O‐Modified β‐Cyclodextrins.
Authors: Fukuhara Gaku , Mori Tadashi , Wada Takehiko , Inoue Yoshihisa 
Published: December 2006

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.
Medium‐Sized Cyclophanes. Part 70. Direct Introduction of Bromine onto the Bridged Methylene of 5,13‐Di‐tert‐butyl‐8,16‐dimethyl[2.2]metacyclophane.
Authors: Yamato Takehiko , Miyamoto Shinpei , Okabe Ryo , Tazaki Yoshinori , Anai Hideyuki 
Published: December 2006

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.
The Effect of β‐Cyclodextrin on the Diastereoselective NaBH4 Reduction of Cyclohexanone Derivatives.
Authors: Seo Myung Soo , Lee Sang Hee 
Published: December 2006

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.
Observations on the Reaction of N‐Alkyloxazolidines, Isocyanides and Carboxylic Acids: A Novel Three‐Component Reaction Leading to N‐Acyloxyethylamino Acid Amides.
Authors: Diorazio Louis J. , Motherwell William B. , Sheppard Tom D. , Waller Robert W. 
Published: December 2006

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.
Reactions of Salicylaldehyde with Tris(pentafluorophenyl)silanes and Secondary Amines.
Authors: Dilman A. D. , Arkhipov D. E. , Belyakov P. A. , Struchkova M. I. , Tartakovsky V. A. 
Published: December 2006

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.
Arylcyanation of Norbornene and Norbornadiene Catalyzed by Nickel.
Authors: Nakao Yoshiaki , Yada Akira , Satoh Jun , Ebata Shiro , Oda Shinichi , Hiyama Tamejiro 
Published: December 2006

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.
Charge‐Induced Reversible Rearrangement of Endohedral Fullerenes: Electrochemistry of Tridysprosium Nitride Clusterfullerenes Dy3N@C2n (2n = 78, 80).
Authors: Yang Shangfeng , Zalibera Michal , Rapta Peter , Dunsch Lothar 
Published: December 2006

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.
Functionalization of N‐[(Silyl)methyl]‐β‐lactam Carbanions with Carbon Electrophiles.
Authors: Palomo Claudio , Aizpurua Jesus M. , Benito Ana , Cuerdo Lourdes , Fratila Raluca M. , Miranda Jose I. , Linden Anthony 
Published: December 2006

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.
Facile Stereoselective Synthesis of cis‐ and trans‐3‐Alkoxyazetidin‐2‐ones.
Authors: Bhalla Aman , Vanugopalan Paloth , Bari Shamsher S. 
Published: December 2006

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.
Benzyl (Phenyl) γ‐ and δ‐Lactones via Photoinduced Tandem Ar—C, C—O Bond Formation.
Authors: Protti Stefano , Fagnoni Maurizio , Albini Angelo 
Published: December 2006

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.
Proline‐Catalyzed Asymmetric Aldol Reaction Between Methyl Ketones and α‐Ketoesters.
Authors: Wang Ya‐Jun , Shen Zong‐Xuan , Li Bin , Zhang Ya‐Wen 
Published: December 2006

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.
1,3‐Dipolar Cycloadditions of Azomethine Ylides with Chiral Acrylates Derived from Methyl (S)‐ and (R)‐Lactate: Diastereo‐ and Enantioselective Synthesis of Polysubstituted Prolines (III).
Authors: Najera Carmen , de Gracia Retamosa M. , Sansano Jose M. 
Published: December 2006

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.
New Facile Synthesis of 3,5‐Dihydro‐6H‐imidazo[1,2‐b]‐1,2,4‐triazol‐6‐ones by an Iminophosphorane‐Mediated Annulation.
Authors: Yuan Ju‐Zhen , Fu Bo‐Qiao , Ding Ming‐Wu , Yang Guang‐Fu 
Published: December 2006

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 4‐Aroyl‐1,2,4‐triazolidin‐3‐ones via Ring Extension in Reactions of 1,2‐Di‐ and 1,2,3,3‐Tetraalkyldiaziridines with Aroyl Isocyanates.
Authors: Shevtsov A. V. , Kuznetsov V. V. , Molotov S. I. , Lyssenko K. A. , Makhova N. N. 
Published: December 2006

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 C‐Aryl‐flavonoid Derivatives via Suzuki—Miyaura Coupling Reaction.
Authors: Peng Wen‐Jie , Han Xiu‐Wen , Yu Biao 
Published: December 2006

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.
The Development of Novel 1,2‐Dihydro‐pyrimido[4,5‐c]pyridazine Based Inhibitors of Lymphocyte Specific Kinase (Lck).
Authors: Sabat Mark , et al. et al. 
Published: December 2006

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.
Stille Coupling Reactions in the Synthesis of Hypoxia‐Selective 3‐Alkyl‐1,2,4‐benzotriazine 1,4‐Dioxide Anticancer Agents.
Authors: Pchalek Karin , Hay Michael P. 
Published: December 2006

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.
4‐(3‐(Phtalhydrazide)azo)N‐phenylaza‐15‐crown‐5. Synthesis and Properties.
Authors: Baratoiu Rodica Daniela , Barbu Anca Elena , Mutihac Lucia , Caproiu Miron Teodor , Draghici Constantin , Socoteanu Radu , Constantinescu Titus 
Published: December 2006

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.
Iridoid Glucosides from Wendlandia tinctoria Roots.
Authors: Dinda Biswanath , Debnath Sudhan , Arima Shiho , Sato Nariko , Harigaya Yoshihiro 
Published: December 2006

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.
Simple Synthesis of Novel Acyclic (E)‐Bromovinyl Nucleosides as Potential Antiviral Agents.
Authors: Kim Jin Woo , Hong Joon Hee 
Published: December 2006

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.
New and Efficient Synthesis of Racemic Cyclopent‐3‐en‐1‐yl Nucleoside Analogues and Their Derivatives.
Authors: Reichardt Bastian , Ludek Olaf R. , Meier Chris 
Published: December 2006

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.
Tubeimoside V (I), a New Cyclic Bisdesmoside from Tubers of Bolbostemma paniculatum, Functions by Inducing Apoptosis in Human Glioblastoma U87MG Cells.
Authors: Cheng Guang , Zhang Yun , Zhang Xiang , Tang Hai‐Feng , Cao Wei‐Dong , Gao Da‐Kuan , Wang Xi‐Ling 
Published: December 2006

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.
The First Total Synthesis and Structural Determination of Lagunamycin
Authors: Hosokawa Seijiro , Kuroda Shoichi , Imamura Keisuke , Tatsuta Kuniaki 
Published: December 2006

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.
Antiallergic Agents from Natural Sources. Part 16. New Lignans from Kadsura coccinea and Their Nitric Oxide Inhibitory Activities.
Authors: Li He‐Ran , Feng Yu‐Lin , Yang Zhi‐Gang , Wang Jue , Daikonya Akihiro , Kitanaka Susumu , Xu Li‐Zhen , Yang Shi‐Lin 
Published: December 2006

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.
Organic Ammonium Carboxylates as Supramolecular Building Blocks: The Role of Ionic Hydrogen Bonding
Authors: Sada Kazuki , Tani Takahiro , Shinkai Seiji 
Published: December 2006

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.
Water Exclusion and Enantioselectivity in Catalysis
Authors: Breslow Ronald , Bandyopadhyay Subhajit , Levine Mindy , Zhou Wenjun 
Published: December 2006

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.
Molecular Transporters: Synthesis of Oligoguanidinium Transporters and Their Application to Drug Delivery and Real‐Time Imaging
Authors: Goun Elena A. , Pillow Thomas H. , Jones Lisa R. , Rothbard Jonathan B. , Wender Paul A. 
Published: December 2006

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.
Analysis of Urea Derivative Herbicides in Water and Soil
Authors: Bogialli Sara , Curini Roberta , Di Corcia Antonio , Nazzari Manuela 
Published: December 2006

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.
Evaluation of an inflammation‐based prognostic score in patients with metastatic renal cancer
Authors: Ramsey Sara , Lamb Gavin W. A. , Aitchison Michael , Graham John , McMillan Donald C. 
Published: December 2006

AbstractBACKGROUND.Recently, it was shown that an inflammation‐based prognostic score, the Glasgow Prognostic Score (GPS), provides additional prognostic information in patients with advanced cancer. The objective of the current study was to examine the value of the GPS compared with established scoring systems in predicting cancer‐specific survival in patients with metastatic renal cancer.METHODS.One hundred nineteen patients who underwent immunotherapy for metastatic renal cancer were recruited. The Memorial Sloan‐Kettering Cancer Center (MSKCC) score and the Metastatic Renal Carcinoma Comprehensive Prognostic System (MRCCPS) score were calculated as described previously. Patients who had both an elevated C‐reactive protein level (>10 mg/L) and hypoalbuminemia (<35 g/L) were allocated a GPS of 2. Patients who had only 1 of those 2 biochemical abnormalities were allocated a GPS of 1. Patients who had neither abnormality were allocated a GPS of 0.RESULTS.On multivariate analysis of significant individual factors, only calcium (hazard ratio [HR], 3.21; 95% confidence interval [95% CI], 1.51–6.83; P = .002), white cell count (HR, 1.66; 95% CI, 1.17–2.35; P = .004), albumin (HR, 2.63; 95% CI, 1.38–5.03; P = .003), and C‐reactive protein (HR, 2.85; 95% CI; 1.49–5.45; P = .002) were associated independently with cancer‐specific survival. On multivariate analysis of the different scoring systems, the MSKCC (HR, 1.88; 95% CI, 1.22–2.88; P = .004), the MRCCPS (HR, 1.42; 95% CI, 0.97–2.09; P = .071), and the GPS (HR, 2.35; 95% CI, 1.51–3.67; P < .001) were associated independently with cancer‐specific survival.CONCLUSIONS.An inflammation‐based prognostic score (GPS) predicted survival independent of established scoring systems in patients with metastatic renal cancer. Cancer 2007. © 2006 American Cancer Society.
The Effect of Catalyst Loading in Copper‐Catalyzed Cyclohexane Functionalization by Carbene Insertion
Authors: Caballero Ana , Díaz‐Requejo M. Mar , Trofimenko Swiatoslaw , Belderraín Tomás R. , Pérez Pedro J. 
Published: December 2006

AbstractA study of the variables that affect the insertion of the :CHCO2Et group (formed from ethyl diazocetate, EDA) into the C–H bonds of cyclohexane in the presence of a TpxCu complex as the catalyst (Tpx = trispyrazolylborate ligand) has demonstrated an anomalous effect of the catalyst loading. The use of low concentrations of catalyst produces an increase in the yield of the C–H activation product ethyl cyclohexaneacetate. This effect has also been found in the case of other less elaborated catalysts such as [BpBr3Cu] or [(bipy)2Cu][I]. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
Synthesis of Both Enantiomers of Conduritol C Tetraacetate and of meso‐Conduritol D Tetraacetate by Oxidation of Benzoquinone Bis(ethylene acetal)
Authors: Lang Martin , Ziegler Thomas 
Published: December 2006

AbstractEpoxidation of p‐benzoquinone bis(ethylene acetal) (1) with m‐chloroperbenzoic acid or hydrogen peroxide/benzonitrile afforded corresponding monoepoxide 2, which was converted into p‐benzoquinone mono(ethylene acetal) monoepoxide 5 with perchloric acid. Dihydroxylation of 1 with osmium tetroxide or ruthenium trichloride/sodium periodate afforded corresponding cis‐diol 6, which was subsequently acetylated to give diacetate 7. One ethyleneacetal moiety in 7 could be selectively hydrolyzed with silica gel/ferric chloride under solvent‐free conditions to give ketone 8, which, upon reduction with sodium borohydride and subsequent acetylation of the formed alcohol group, afforded two diastereomeric triacetates 10. Hydrolysis of the remaining acetal functions in the two diastereomers 10, followed by reduction of the second carbonyl group as described above, afforded racemic conduritol C and meso‐conduritol D tetraacetates 12 and 13, respectively. Enzymatic resolution of the racemic arabino‐configured triacetate 10 with Lipozym failed, while the ribo‐configured counterpart reacted smoothly to give enantiomerically pure D‐ribo‐ and L‐ribo‐configured triacetates 10. The latter pair of enantiomerically pure triacetates were converted into both enantiomers of conduritol C tetraacetate 13 as described for the racemic compounds. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
Breast cancer mortality after screening mammography in British Columbia women
Authors: Coldman Andrew , Phillips Norm , Warren Linda , Kan Lisa 
Published: December 2006

AbstractMammographic screening is a proven method for the early detection of breast cancer. The authors analyzed the impact of service mammographic screening on breast cancer mortality among British Columbia women who volunteered to be screened by the Screening Mammography Program of British Columbia. A cohort of women having at least one mammographic screen by Screening Mammography Program of British Columbia between the ages of 40 and 79 in the period 1988–2003 was identified. All cases and deaths from breast cancer occurring in British Columbia were identified from the British Columbia Cancer Registry and linked to the screening cohort. Expected deaths from breast cancer in the cohort were calculated using incidence and survival rates for British Columbia women not in the cohort. Adjustment was made for age and socioeconomic status of their area of residence at time of diagnosis. The breast cancer mortality ratio was calculated by dividing observed by expected breast cancer deaths. The mortality ratio (95% confidence interval) was 0.60 (0.55, 0.65) for all ages combined (p < 0.0001). The mortality ratio in women aged 40–49 at first screening was 0.61 (0.52, 0.71), similar to that in women over 50 (p = 0.90). Exclusion of mortality associated with breast cancers diagnosed after age 50 in women starting screening in their 40s increased the mortality ratio to 0.63 (0.52, 0.77), but it remained statistically significant. Correction for self‐selection bias using estimates from the literature increased the mortality ratio for all ages to 0.76. Mammographic screening at all ages between 40 and 79 reduced subsequent mortality rates from breast cancer. © 2006 Wiley‐Liss, Inc.
Diffuse functions in natural bond orbital analysis
Authors: Goodman Lionel , Sauers Ronald R. 
Published: December 2006

AbstractWe show that diffuse function augmentation of Pople basis sets at the 6‐311G RHF and B3LYP levels strongly impact conclusions drawn from natural bond orbital (NBO) analysis. The large spatial extent of high quantum number Rydberg orbitals introduced by augmentation contribute importantly to the valence space of neighboring atoms due to the likely inadequacy of the 311 valence functions. In contrast, lesser anomalies are found for augmentation of double zeta type 6‐31G. The energetic anomalies found for bond and antibond NBO descriptions, made nonlocal by augmentation, are most serious for molecules with four or more heavy atoms. For these cases augmentation can lead to nonphysical results. NBO results using Dunning‐type correlation consistent orbitals exhibit much weaker basis set dependence than those using the Pople basis sets.© 2006 Wiley Periodicals, Inc. J Comput Chem 2007
Mechanical strain induces a persistent upregulation of syndecan‐1 expression in smooth muscle cells
Authors: Julien Matheau A. , Haller Carolyn A. , Wang Peiyi , Wen Jing , Chaikof Elliot L. 
Published: December 2006

AbstractSyndecan‐1 belongs to a family of transmembrane proteoglycans, acts as a coreceptor for growth factor binding, as well as cell–matrix and cell–cell interactions, and is induced in smooth muscle cells (SMCs) following balloon catheter injury. In this report, we investigated syndecan‐1 expression in SMCs in response to several distinct biomechanical force profiles and the related syndecan shedding response. Syndecan‐1 mRNA expression increased in response to 5% and 10% cyclic strain (24 h: 206 ± 40% and 278 ± 33%, respectively, P < 0.05) when compared to unstrained controls. When subjected to 10% cyclic strain for periods of up to 48 h, syndecan‐1 mRNA levels remained elevated at 294 ± 31%. Notably, the SMC mechanosensor mechanism remained responsive after an initial 24 h “preconditioning” period, as evident by a fivefold increase in syndecan‐1 gene expression following a change in cyclic stress from 10% to 20% (48 h: 516 ± 55%, P < 0.05). Of note, similar behavior was not observed in an analysis of syndecan‐2 mRNA levels. Commensurate with mRNA responses, mechanical stress induced an increase in cell‐associated syndecan‐1 protein levels with an associated increase in protein shedding. Given the varied functions of syndecan‐1, stress‐induced effects on SMC syndecan‐1 expression and shedding may represent an additional component of the pro‐inflammatory, growth‐stimulating pathways that are activated in response to changes in the mechanical microenvironment of the vascular wall. Syndecan‐1 expression is uniquely influenced by changes in the phase and magnitude of the local stress field. J. Cell. Physiol. 211: 167–173, 2007. © 2006 Wiley‐Liss, Inc.
Issues relating to the common origin of two Byzantine miniatures:in situexamination with Raman spectroscopy and optical microscopy
Authors: Daniilia Sister , Andrikopoulos Konstantinos S. 
Published: December 2006

AbstractA large number of Byzantine illustrated manuscripts—precious monuments of the world’s cultural heritage—are preserved in numerous museums and monasteries around the globe. Hitherto no systematic study employing diagnostic methods has been undertaken either to identify their materials or to reveal the particularities of their painting technique, let alone substantiate their origin, authenticity and chronology.This paper presents the results of research undertaken on two full‐page medieval miniatures painted on isolated sheets of paper. One depicts the evangelist Matthew and the other an eagle (symbolic of the evangelist John the Theologian). The folios are preserved in the sacristy of the Holy Monastery of Simonopetra on Mount Athos and it is supposed that they originally belonged to an unidentified Gospel manuscript of the 12th century. By applying optical microscopy and Raman spectroscopy, it became possible to address the issue of the miniatures' common origin.The palette used for the image of Saint Matthew was found to comprise eight finely ground pigments:lapis lazuli, cinnabar, orpiment, yellow ochre, haematite, green earth, carbon black and lead white, while in the miniature of the eagle the same pigments (aside from green earth) were used. Exhaustive study has revealed significant similarities in the color palette and painting technique. Technical particularities adapted to the demands of miniature painting have been also observed, revealing an experienced and highly talented artist. A thorough comparison of the two miniatures confirmed that they belong to the same codex and hence must be the work of one and the same painter. Copyright © 2006 John Wiley & Sons, Ltd.
Fabrication of a range of SERS substrates on nanostructured multicore optical fibres
Authors: White D. J. , Mazzolini A. P. , Stoddart P. R. 
Published: December 2006

AbstractAn effective method for producing arrays of nanoscale triangles, rods and wells on the distal end of a silica optical fibre is presented. The structures are produced by applying a wet‐etch procedure to drawn‐down imaging fibres. Structural variation is achieved by altering the final diameter of the drawn fibre. Feature sizes of less than 100 nm can be readily achieved in this way. When coated with silver, surface‐enhanced Raman scattering enhancement factors of over 106 can be achieved, depending on the size and shape of the structures present. Copyright © 2006 John Wiley & Sons, Ltd.