Results 21 to 30 of about 383,654 (289)

Development of identification test methods for triptorelin acetate and goserelin acetate substances using NMR spectroscopy

Регуляторные исследования и экспертиза лекарственных средств, 2019
The work is a continuation of the research on the use of NMR spectroscopy in the quality control of natural peptide hormone-based active substances and their synthetic analogues.
S. V Moiseev, N. E. Kuz’mina, A. I. Luttseva   +2 more
doaj   +1 more source

Addition of Di(trimethylsilyl) Phosphite to Schiff Bases of 2,5-Diformylfuran [PDF]

, 2011
A series of 2,5-Furanyl-bis-(aminomethylphosphonic Acids) has been synthesized by the addition of di(trimethylsilyl) phosphite to azomethine bond of achiral Schiff bases derved from 2,5-diformylfuran.
Ciechańska, Magdalena, Dzięgielewski, Marek, Lewkowski, Jarosław, Szcześniak, Aleksandra   +3 more
core   +1 more source

Application of NMR Screening Methods with 19F Detection to Fluorinated Compounds Bound to Proteins

Magnetochemistry, 2017
The combinational use of one-dimensional (1D) NMR-based screening techniques with 1H and 19F detections were applied to a human serum albumin–diflunisal complex.
Kazuo Furihata, Moe Usui, Mitsuru Tashiro   +2 more
doaj   +1 more source

Solid-state NMR characterisation of the thermal transformation of a Hungarian white illite [PDF]

, 2005
1H, 27Al, 29Si and 39K solid-state NMR are reported from a Hungarian illite 2:1 clay for samples heated up 1600 °C. This single-phase sample has a small amount of aluminium substitution in the silica layer and very low iron-content (0.4 wt%).
Ban, Bastow, Brindley, Brindley, Brown, Brown, D.L. Carroll, Deer, Drachman, Drits, Earnest, Engelhardt, Fitzgerald, Fitzgerald, Freude, Grim, Grim, Hayashi, He, Herrero, Jaymes, Jaymes, Kunath-Fandrei, Kunath-Fandrei, Kunwar, Lambert, Lambert, Lausen, M.E. Smith, MacKenzie, Mackenzie, Mackenzie, Massiot, Massiot, McConville, Merwin, Michael, Murad, Rehak, Roch, Rocha, Rocha, Sanchez-Soto, Sanz, Sanz, Schairer, Schroeder, Slade, Smith, Smith, Smith, Smith, T.F. Kemp, T.J. Bastow, Watanabe, Woessner, Worrall   +56 more
core   +1 more source

Quantitative Analysis of Cannabinoids from Cannabis sativa Using 1H-NMR

Chemical and Pharmaceutical Bulletin, 2004
A (1)H-NMR method has been developed for the quantitative analysis of pure cannabinoids and for cannabinoids present in Cannabis sativa plant material without any chromatographic purification. The experiment was performed by the analysis of singlets in the range of delta 4.0-7.0 in the (1)H-NMR spectrum, in which distinguishable signals of each ...
Hazekamp, A., Choi, Y.H., Verpoorte, R.
openaire   +4 more sources

Synthesis and Quantitative Structure–Activity Relationship of Imidazotetrazine Prodrugs with Activity Independent of O6-Methylguanine-DNA-methyltransferase, DNA Mismatch Repair and p53. [PDF]

, 2013
The antitumor prodrug Temozolomide is compromised by its dependence for activity on DNA mismatch repair (MMR) and the repair of the chemosensitive DNA lesion, O6-methylguanine (O6-MeG), by O6-methylguanine-DNA-methyltransferase (EC 2.1.1.63, MGMT). Tumor
Arris C. E., Arrowsmith J., Barvaux V. A., Boberg F., Boyd M. R., Bunz F., Damera K., Darkes M. J. M., De K., Denny B. J., Dimitrios Pletsas, Dinca E. B., Elrashied A. E. Garelnabi, Garelnabi E. A. E., Hirose Y., Honnalli S. S., Judson P. L., Karran P., Karran P., Kotera M., Leteurtre F., Li Li, Liu L., McElhinney R. S., McGarrity J. F., Mladek A. C., Nishizuka S., Pletsas D., Richard T. Wheelhouse, Roger M. Phillips, Sarkaria J. N., Schmidt B. F., Schmiedekamp A., Shealy Y. F., Siddiqui A. A., Smith R. H., Stevens M. F. G., Svilar D., Wang Y., Wheelhouse R. T., Wheelhouse R. T., Zhang J., Zhang J.   +42 more
core   +1 more source

1H NMR Analysis of Cerebrospinal Fluid from Alzheimer’s Disease Patients: An Example of a Possible Misinterpretation Due to Non-Adjustment of pH

Metabolites, 2014
Two publications from the same research group reporting on the detection of new possible biomarkers for the early diagnosis of Alzheimer’s disease (AD), based on the analysis of cerebrospinal fluid samples (CSF) with 1H Nuclear Magnetic Resonance (NMR ...
Thomas Cruz, Stéphane Balayssac, Véronique Gilard, Robert Martino, Christian Vincent, Jérémie Pariente, Myriam Malet-Martino   +6 more
doaj   +1 more source

Maize tricin-oligolignol metabolites and their implications for monocot lignification [PDF]

, 2016
Lignin is an abundant aromatic plant cell wall polymer consisting of phenylpropanoid units in which the aromatic rings display various degrees of methoxylation.
Boerjan, Wout, del Río, José Carlos, Lan, Wu, Lu, Fachuang, Morreel, Kris, Ralph, John, Rencoret, Jorge, Vermerris, Wilfred, Voorend, Wannes   +8 more
core   +2 more sources

Discovery of macrocyclic inhibitors of apurinic/apyrimidinic endonuclease 1 [PDF]

, 2019
Apurinic/apyrimidinic endonuclease 1 (APE1) is an essential base excision repair enzyme that is upregulated in a number of cancers, contributes to resistance of tumors treated with DNA-alkylating or -oxidizing agents, and has recently been identified as ...
Beglov, Dmitri, Brown, Lauren E., Chen, Qiujia, Chennamadhavuni, Spandan, Georgiadis, Millie M., He, Hongzhen, Kelley, Mark R., Panek, James S., Porco, John A., Reed, April, Trilles, Richard, Vajda, Sandor, Wireman, Randall   +12 more
core   +7 more sources

Structural Elucidation of Hybutimibe

Chinese Journal of Magnetic Resonance
The structure of hybutimibe was analyzed by ultraviolet absorption spectroscopy, infrared absorption spectroscopy, mass spectrometry, nuclear magnetic resonance (1H NMR, 13C NMR, DEPT, 1H-1H COSY, 1H-1H NOESY, 1H-13C HSQC and 1H-13C HMBC) spectroscopy ...
XU Xiaojie, CHEN Yan’an, LI Xufei, ZHANG Yuncai, ZHANG Yong, ZHAN Dongkai, PAN Ting   +6 more
doaj   +1 more source