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Synthesis and conformational analysis of AzAsx-containing oligopeptides

SummaryFor the sake of improving synthetic methods and evaluating the conformational perturbation induced by the substitution of AzAsx for the Asx residue in the cognate dipeptide R-CO-Asx-Pro-NHR, we prepared the AzAsx-dipeptide sequence by making use of the crystalline triphosgene.

出版机构:Kluwer Academic Publishers

刊物名称:Letters in Peptide Science

出版时间:1995

ISSN:0929-5666

数据源:报刊文摘

Comparative spectroscopic and rheological studies on crude and purified soluble barley and oat β-glucan preparations

The rheology of crude and purified barley (BBG) and oat (OBG) ?-glucan samples were characterized. Sample content and major impurities was characterized by Fourier-transform near infrared Raman and infrared (FT-IR) spectroscopy revealing substantial differences between the ?-glucan samples.

出版机构:Elsevier Science

刊物名称:Food Research International

出版时间:2010

ISSN:0963-9969

数据源:报刊文摘

Catalytic pyrolysis of Arab Heavy residue and effects on the chemistry of asphaltene

In an attempt to understand the changes in asphaltene structure during pyrolysis, hydrothermal reactions were performed on Arab Heavy atmospheric residue using FCC catalyst, ZSM-5 zeolite, hydrocracking catalyst (HC-1) and hydroprocessing (NiMo) catalyst in a bench-scale fixed bed reactor.

出版机构:Elsevier Science

刊物名称:Journal of Analytical and Applied Pyrolysis

出版时间:2010

ISSN:0165-2370

数据源:报刊文摘

Synthesis, structure and cytotoxic activity of new 1‐[5‐organylsilyl(germyl)‐2‐furyl (thienyl)]nitroethenes

New highly cytotoxic 1?[5?organylsilyl(germyl)?2?furyl(thienyl)]nitroethenes (IC500.3?3 ?g ml?1) have been prepared by condensation reaction of corresponding silicon? and germanium?

出版机构:John Wiley & Sons, Ltd.

刊物名称:Applied Organometallic Chemistry

出版时间:2010

ISSN:0268-2605

数据源:报刊文摘

Experimental and theoretical study of 4-cyanobenzaldehyde isonicotinoyl-hydrazone monohydrate

The molecular geometry, vibrational frequencies, gauge-including atomic orbital (GIAO) 1H and 13C chemical shift values of 4-cyanobenzaldehyde isonicotinoyl-hydrazone monohydrate in the ground state have been calculated by using the Hartree?

出版机构:Elsevier Science

刊物名称:Journal of Molecular Structure

出版时间:2010

ISSN:0022-2860

数据源:报刊文摘

Thiosemicarbazone Derivatives of Copper(I): Influence of Substituents (R) at N1 Atom of [(C5H4N)HC2=N3N2H‐C1(=S)N1HR] in the Formation of 1D or 2D Networks of Copper(I) Complexes

Copper(I) halides with N1?substituted pyridine?2?carbaldehyde thiosemicarbazones [(C5H4N)HC2=N3N2H?

出版机构:WILEY‐VCH Verlag

刊物名称:Zeitschrift für anorganische und allgemeine Chemie

出版时间:2010

ISSN:0044-2313

数据源:报刊文摘

Synthesis and Characterization of 3,5‐Diamino‐1,2,4‐triazolium Dinitramide

3,5?Diamino?1,2,4?triazole (1, guanozol) was protonated with diluted hydrochloric acid, nitric acid, as well as perchloric acid forming 3,5?diamino?1,2,4?triazolium chloride hemihydrate (2), 3,5?diamino?1,2,4?

出版机构:WILEY‐VCH Verlag

刊物名称:Zeitschrift für anorganische und allgemeine Chemie

出版时间:2010

ISSN:0044-2313

数据源:报刊文摘

Design, Synthesis and Anti Colon Cancer Activity Evaluation of Phosphorylated Derivatives of Lamivudine (3TC)

Their structures were characterized by IR, 1H, 13C, 31P NMR and mass spectral analyses. All the compounds were evaluated for their anti colon cancer activity against COLO-205 cell lines in vitro studies. Among them 5a and 5b emerged as lead compounds with 0.003 ?M and 0.0001 ?M values.

出版机构:Bentham Science Publishers

刊物名称:Letters in Drug Design & Discovery

出版时间:2011

ISSN:1570-1808

数据源:报刊文摘

Metal Coordinated Urea Based Fluorescent Receptors for Anion Recognition

Two bis urea based acyclic receptors (1 and 2) containing two pyridyl moieties with different spacers are synthesized. These receptors are further transformed to metallo-macrocyclic receptors (3 and 4) by coordinating with metal center through pyridine ring 'N'.

出版机构:Bentham Science Publishers

刊物名称:Mini-Reviews in Organic Chemistry

出版时间:2011

ISSN:1570-193X

数据源:报刊文摘

From Relative to Absolute Configuration of Complex Natural Products: Interplay Between NMR, ECD, VCD, and ORD Assisted by ab initio Calculations

This minireview is addressed to readers with a background in basic organic chemistry and spectroscopy, but without a specific knowledge of NMR, ECD, VCD and ORD. Herein we summarize the role of quantum mechanical ab initio prediction of spectral properties in NMR and chiroptical spectroscopies.

出版机构:Bentham Science Publishers

刊物名称:Current Organic Chemistry

出版时间:2010

ISSN:1385-2728

数据源:报刊文摘