supports for solid phase synthesis

... University, August 2010, Solid- Phase Synthesis of N-Carboxyalkyl Unnatural Amino Acids Major Professor: Martin J 9^/NMMEKl, Ph.D A novel route has been developed for the solid- phase synthesis of Ncarboxyalkyl ... %-Halocarbonyl CNLONSMDQZZZZZZZZZZZZZZZZZZZZ'''13 1.3 Examples of Solid- Phase Synthesis of Substituted AminesZZZZZZ'ZZZ.18 1.3.1 Solid- Phase Synthesis of ACE Inhibitors with %-Ketocarbonyl Compounds ... solution -phase chemistry The utilization of solidphase methods and combinatorial chemistry for the synthesis of amino acid derivatives has become an important methodology since the beginnings of solid- phase...

Ngày tải lên: 24/08/2014, 13:46

... Ph Synthesis of Functionalized Polystyrene Resin Synthesis of Functionalized Polystyrene Resin Synthesis of Functionalized Polystyrene Resin Synthesis of Functionalized Polystyrene Resin Synthesis ... Resin Synthesis of Functionalized Polystyrene Resin Synthesis of Functionalized Polystyrene Resin Synthesis of Functionalized Polystyrene Resin Synthesis of Functionalized Polystyrene Resin 1.2 ... the solid support, and should provide a means for their chemical attachment and cleavage • Stability of the linker affects the scope of the chemistry that can be employed in the library synthesis...

Ngày tải lên: 17/04/2015, 09:11

... have also been investigated, information of unmodified silica monolith as solid phase extraction is limited In this thesis, application of silica monolith for solid phase extraction had been explored ... include supports for solidphase and combinatorial synthesis [Tripp et al., 2001; Pflegerl et al., 2002; Vlakh et al., 2004], scavengers [Tripp et al., 2001; Tripp et al., 2000], carriers for immobilization ... as solid phase extraction cartridge for the extraction of epinephrine, metanephrine and normetanephrine from urine  Application of the silica monolith as solid phase extraction cartridge for...

Ngày tải lên: 10/09/2015, 15:50

... account for a majority of the linkers developed for solid- phase synthesis The main reason for this preference is because solid- phase methodology was originally developed for peptide synthesis ... Solution phase synthesis of 3-36 124 3.7.2 Solid- Phase library synthesis of 3-38, 3-39, 3-44, 4-45 and 3-47 126 3.7.3 Experimental Section 132 3.7.3.1 Solution Phase Synthesis 132 3.7.3.2 Solid- Phase ... Solution -phase reactions leading to N, N’-alkylaryl carbodiimide 59 3-12 Scheme 3.9 Revised synthesis of 3-7 60 Scheme 3.10 Solid- phase Synthesis of 3-7 63 Scheme 3.11 Traceless solid- phase synthesis...

Ngày tải lên: 14/09/2015, 08:25

... PUBLICATIONS CHAPTER 1: INTRODUCTION 1.1 Solid- phase synthesis (SPS) 1.1.1 Solid supports 1.1.2 Linkers 1.1.3 Reaction monitoring in solid- phase synthesis 13 1.1.4 Solid- phase synthetic libraries -from ... 1.1) Figure1.1 Illustration of a solid- phase synthesis This concept of solid- phase synthesis was first raised by R B Merrifield in 1963 for efficient peptides synthesis. [1] Later this methodology ... thesis reports the development of novel methodologies for the solid- phase synthesis of purine derivatives The first project involves the solid- phase synthesis of 2,9-disubstituted-6-oxopurines using...

Ngày tải lên: 15/09/2015, 17:09

... as ecdysone agonists Solid phase synthesis of prototypical a-acylamino-a,a-disubstituted ketones on two different solid supports is described In both cases the ketone was formed by reaction of ... To investigate this hypothesis we sought a solid phase synthesis of which would be sufficiently general to allow production of a library of compounds for biological screening Figure a-Acylamino-a,a-disubstituted ... Holger, W.; Beyermann, M.; Forner, K.; Carpino, L A.; Biernet, M Lett Peptide Sci 1995, 2, 285–288 27 Mixtures of CH2Cl2 and DMF are better than DMF alone for the solid phase acylation of hindered...

Ngày tải lên: 26/08/2016, 11:29

... Wiley-Interscience: New York, 1998 Lednicer et al The Organic Chemistry of Drug Synthesis; Wiley-Interscience: New York, 1977 Ellman’s solid- phase synthesis of 1,4-benzodiazepines Ưu điểm Tổng hợp Pha rắn? Không ... hóa trình tổng hợp TỔNG HỢP PHA RẮN TỔNG HỢP PHA RẮN SOLID PHASE SYNTHESIS • The scale SPS is limited and restricted by the amount of the solid support and its loading capacity • The preparation ... PEG-polystyrene graft supports X= OH or NH2 Polystyrene-Polyethyleneglycol graft (TentaGel) Drawbacks that limit the use of TentaGel resin as a universal support for solid- phase chemistry: The...

Ngày tải lên: 12/10/2016, 14:11

... microextraction techniques for pharmaceutical and biomedical analyses Anal Sci 2011, 27:893-905 Llompart M, Li K, Fingas M: Solid- phase microextraction and headspace solid- phase microextraction for the determination ... using solid- phase microextraction and GC/MS Environ Sci Technol 1994, 28:298-305 10 Nilsson T, Ferrari R, Facchetti S: Inter-laboratory studies for the validation of solid- phase microextraction for ... J: Solid Phase Microextraction: Theory and Practice New York: Wiley-VCH; 1997 Pawliszyn J (Ed): Handbook of Solid Phase Microextraction Peking: Chemical Industry Press; 2009 Alpendurada MF: Solid- phase...

Ngày tải lên: 20/06/2014, 20:20

Ngày tải lên: 14/11/2014, 06:36

... separated, so this technique can be used for solution as well as solid phase synthesis diversification reaction divide diversification reaction Split-pool Synthesis • Optimization of reactions leads ... β-elimination of resin-bound leaving groups has been used as a cleavage strategy for the release of alkenes from supports Preparation of Alkenes by β-Elimination Preparation of Alkenes by β-Elimination ... of Alkenes by C-Vinylation The Heck, Stille, and Suzuki couplings Synthesis of tetrahydroisoquinolines Parallel Library Synthesis • Optimization of 12 reactions provides compounds • The library...

Ngày tải lên: 17/04/2015, 08:58

... cells on foreign substrates are described here: solid phase crystallization (Section 1.3.1), seed layer approach (Section 1.3.2), and liquid phase crystallization (Section 1.3.3) 1.3.1 Solid phase ... LIGHT TRAPPING CONCEPTS FOR PLASMA-DEPOSITED SOLID PHASE CRYSTALLISED POLYCRYSTALLINE SILICON THIN-FILM SOLAR CELLS ON GLASS YING HUANG (M.Sc., NTU) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR ... evaporated solid- phase- crystallized thin-film silicon solar cells on glass, Applied Physics Letters, 86 (2005) 172108 [24] D Song, D Inns, A Straub, M.L Terry, P Campbell, A.G Aberle, Solid phase...

Ngày tải lên: 09/09/2015, 11:16

... CHARACTERISATION OF SOLID- PHASE CRYSTALLISED PLASMADEPOSITED SILICON THIN FILMS ON GLASS FOR PHOTOVOLTAIC APPLICATIONS AVISHEK KUMAR (B.Eng., MSc-Microelectronics) A THESIS SUBMITTED FOR THE DEGREE ... Dalapati for giving me an opportunity to work in his lab and for his valuable guidance during this work I would like to thank Dr Bram Hoex for his scientific advice I thank Dr Hidayat for his ... Figure 2.9: Process sequence and the recipe for the deposition of the doped aSi:H films 29 Figure 2.10: Temperature profile used for the solid phase crystallization of the aSi:H films...

Ngày tải lên: 09/09/2015, 11:21

... stencil adaptive phase- field LBM for multiphase flow simulation 12 1.2.3.2 LBM for multiphase flow with density contrast Besides accuracy and efficiency balance, another major issue for phase- field ... 142 vi Chapter Application of Immersed Boundary -Phase Field-Lattice Boltzmann Method for Solid- Multiphase Flow Interactions 161 6.1 Solid- Multiphase Flow Interactions 162 6.2 Simulation Procedures ... framework for simulation of solid- multiphase flow interactions In respect of multiphase flow solver, this work develops a stencil adaptive phase- field lattice Boltzmann method (LBM) for two dimensional...

Ngày tải lên: 10/09/2015, 09:06

... the formation of the c-Si phase The Gibbs free energy in the system is reduced for every atom transformed from the a-Si phase to the c-Si phase However, an energy penalty is imposed for the formation ... reason why phase transformation occurs is because the initial phase is unstable relative to the final phase The phase stability is determined by the Gibbs free energy for transformation that occurs ... a higher activation energy barrier leads to a slower rate of phase transformation [4] For a-Si at room temperature, the phase transformation does not proceed within a reasonable amount of time...

Ngày tải lên: 10/09/2015, 09:31

... sink for silicon interstitials This chapter provides the fundamentals needed for an effective application of carbon for device fabrication in the later stages of the research work 2.2 Solid phase ... γ for a long channel device, γlong for comparison 121 Figure 6.17 (a) ID-Vgs characteristics and (b) The ID-Vds, for a tcap = 20nm device activated under SPER annealing of 750 °C for ... development of solid state devices lies in their function as core components in electronics used in fields such as computing, communication and information storage As these solid state devices form the...

Ngày tải lên: 12/09/2015, 09:28

... Security+:The Foundation for Solid Network and Information Security Timothy H Euler, Global Knowledge Instructor, MCSE NT4.0, MCSE WIN2K, ... the foundation for a career in Information security as well as data networking it can provide We will cover: • Historical overview • How times have changed • The War on Terror—information terror ... front-line defense for most businesses That being said, data and network professionals have in-depth training to recognize threats and security holes, monitor for attacks before they are executed,...

Ngày tải lên: 21/12/2013, 06:18

... TECHNIQUES FOR THREE -PHASE VS-PWM CONVERTERS While phase voltages can be controlled independently, phase currents are determined not only by their own phase voltage, but also by those of other phases ... midpoint (when available) phase load are not connected [Fig 2(a)], phase currents depend only on the voltage difference between phases Therefore, a common term can be added to the phase voltages, thus ... capable of forcing the command current Therefore, the converter requires a sufficient supply voltage reserve to force the ac line current in the entire and load range C Basic Requirements and Performance...

Ngày tải lên: 03/01/2014, 19:45

... Value for Saccharomyces carlsbergensis, no data available for E coli; b value for Lupinus luteus and bovine, no data available for E coli; c value for Paracoccus denitrificans, no data available for ... [15N]amino acids chosen for hCypA labelling were 50 lM for [15N]Trp and [15N]Tyr, 150 lM for [15N]Ile, [15N]Thr and [15N]His, 0.35 mM for remaining Group II [15N]amino acids, and mM for those in Group ... suitable for production of many different proteins Ó FEBS 2004 Cell-free synthesis of 15 N-labelled proteins (Eur J Biochem 271) 4087 Optimization of other conditions for in vitro protein synthesis...

Ngày tải lên: 16/03/2014, 18:20

... produced in both a readable format for human inspection and a machinable format for input to the trial translator Information feedback relationships will exist between the formula finder system, the ... a given formula in a given context will be called the evaluation of the formula for that context From the viewpoint of automatic formula finding and testing, it is desirable to search for algorithms ... the propositional calculus: • for and, ∨ for or, and ~ for not The predicates used in the Dr and Wr formulas must be functions of the Wij A typical predicate might, for example, correspond to the...

Ngày tải lên: 16/03/2014, 19:20

... (2:36b) The orthonormality condition for the case of discrete eigen values is, for example: hEi jEj i ¼ ij ; (2:37) and for the continuous eigen value case is, for example: hxjx0 i ¼ ðx À x0 Þ: ... commutator and it is of a very different form from Newton’s equation of motion for x or vx , which involves the force On the other hand, Heisenberg’s equation is of the form of Hamilton’s equation of motion ... matrix formulation complement each other and both are widely used Although a great deal more can be said about the basic postulates and the formalisms of quantum mechanics, the foundations for formulating...

Ngày tải lên: 17/03/2014, 14:41