Search Results - "Maruyoshi, Keisuke"

Combining the Advantages of Powder X‑ray Diffraction and NMR Crystallography in Structure Determination of the Pharmaceutical Material Cimetidine Hydrochloride by Watts, Abigail E, Maruyoshi, Keisuke, Hughes, Colan E, Brown, Steven P, Harris, Kenneth D. M

“…We report the crystal structure of the anhydrous phase of cimetidine hydrochloride, determined directly from powder X-ray diffraction data. The material was…”
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Identifying the intermolecular hydrogen-bonding supramolecular synthons in an indomethacin-nicotinamide cocrystal by solid-state NMR by Maruyoshi, Keisuke, Iuga, Dinu, Antzutkin, Oleg N, Alhalaweh, Amjad, Velaga, Sitaram P, Brown, Steven P

“…Two-dimensional (1)H double-quantum and (14)N-(1)H & (1)H-(13)C heteronuclear magic-angle spinning (MAS) NMR spectra recorded at natural isotopic abundance…”
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Conformations of Spermine in Adenosine Triphosphate Complex: The Structural Basis for Weak Bimolecular Interactions of Major Cellular Electrolytes by Maruyoshi, Keisuke, Yamaguchi, Toshiyuki, Demura, Tetsuo, Matsumori, Nobuaki, Oishi, Tohru, Murata, Michio

“…Selectively 2H‐ and 13C‐labeled spermines (SPM) were efficiently synthesized and analyzed by NMR spectroscopy to determine the spin–spin coupling constants for…”
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Accurate Measurement of Vicinal Carbon–Hydrogen Coupling Constants via Ammonium Nitrogen Based on HMBC Experiments by Yamaguchi, Toshiyuki, Maruyoshi, Keisuke, Matsumori, Nobuaki, Murata, Michio

“…Vicinal spin–spin coupling constants frequently used for conformation analysis were determined for ammonium-containing 13C–N–C–1H systems by using HMBC…”
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Assessing the Detection Limit of a Minority Solid-State Form of a Pharmaceutical by 1 H Double-Quantum Magic-Angle Spinning Nuclear Magnetic Resonance Spectroscopy by Maruyoshi, Keisuke, Iuga, Dinu, Watts, Abigail E, Hughes, Colan E, Harris, Kenneth D M, Brown, Steven P

“…The lower detection limit for 2 distinct crystalline phases by H magic-angle spinning (MAS) solid-state nuclear magnetic resonance (NMR) is investigated for a…”
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Conformational Change of Spermidine upon Interaction with Adenosine Triphosphate in Aqueous Solution by Maruyoshi, Keisuke, Nonaka, Kaori, Sagane, Takeshi, Demura, Tetsuo, Yamaguchi, Toshiyuki, Matsumori, Nobuaki, Oishi, Tohru, Murata, Michio

“…A complex rotation: The solution conformation of spermidine (SPD) was elucidated by using diastereospecifically deuterated and 13C‐labeled derivatives to…”
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Synthesis and conformation of deuterated spermidine for investigating weak interaction with polyanionic biomolecules by Maruyoshi, Keisuke, Demura, Tetsuo, Sagane, Takeshi, Matsumori, Nobuaki, Oishi, Tohru, Murata, Michio

“…Polyamines such as spermidine and spermine are known to interact with polyanionic biomolecules under physiological conditions. Conformation analysis of these…”
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