Search Results - "Chantrapromma, S"

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  1. 1

    Synthesis, Crystal Structure, Antioxidant, and α-Glucosidase Inhibitory Activities of Methoxy-substituted Benzohydrazide Derivatives by Prachumrat, P., Kobkeatthawin, T., Ruanwas, P., Boonnak, N., Laphookhieo, S., Kassim, M. B., Chantrapromma, S.

    Published in Crystallography reports (01-05-2018)
    “…Eight methoxy substituted at the benzylidene moiety benzohydrazide derivatives [ R = 2-OCH 3 ( 1 ), 3-OCH 3 ( 2 ), 4-OCH 3 ( 3 ), 2,3-(OCH 3 ) 2 ( 4 ),…”
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  2. 2

    Synthesis, Spectroscopy, and α-Glucosidase Inhibitory Activity of 3-Substituted Hydrazone Derivatives and Crystal Structure of (1E,2E)-1,2-Bis[1-(3-methoxyphenyl)ethylidene]hydrazone by Boonnak, N., Chantrapromma, S., Ruanwas, P., Sontimuang, C., Fun, H.-K.

    Published in Crystallography reports (01-12-2017)
    “…Six 3-substituted hydrazone derivatives [ R = −OCH 3 ( 1 ), −NH 2 ( 2 ), −NO 2 ( 3 ), −F ( 4 ), −Cl ( 5 ), and −Br ( 6 )] were synthesized by condensation…”
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  3. 3

    Absolute Configuration of Andrographolide and Its Proliferation of Osteoblast Cell Lines by Chantrapromma, S., Boonnak, N., Pitakpornpreecha, T., Yordthong, T., Chidan Kumar, C. S., Fun, H. K.

    Published in Crystallography reports (01-05-2018)
    “…Andrographolide, C 20 H 30 O 5 , is a labdane diterpenoid which was isolated from the leave of Andrographis paniculata . Its crystal structure is determined by…”
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  4. 4

    Synthesis, antityrosinase activity of curcumin analogues, and crystal structure of (1E,4E)-1,5-bis(4-ethoxyphenyl)penta-1,4-dien-3-one by Chantrapromma, S., Ruanwas, P., Boonnak, N., Chantrapromma, K., Fun, H.-K.

    Published in Crystallography reports (01-12-2016)
    “…Five derivatives of curcumin analogue ( R = OCH 2 CH 3 ( 1 ), R = N(CH 3 ) 2 ( 2 ), R = 2,4,5-OCH 3 ( 3 ), R = 2,4,6-OCH 3 ( 4 ), and R = 3,4,5-OCH 3 ( 5 ))…”
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  5. 5

    Highly Efficient and Simple Route to Synthesize N-(4-Acetylphenyl)-4-chlorobenzenesulfonamide and Its Crystal Structure by Kobkeatthawin, T., Chantrapromma, S., Chidan Kumar, C. S., Fun, H.-K.

    Published in Crystallography reports (01-12-2017)
    “…The one-pot synthesis of N -(4-acetylphenyl)-4-chlorobenzenesulfonamide under base conditions is carried out. The present method offers several advantages such…”
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  6. 6

    Synthesis, Characterization, and Crystal Structures of 4,6-Dimethoxy-2-hydroxy-3-methylbenzoic Acid and 2,4-Dimethoxy-6-hydroxy-3-methylbenzoic Acid by Chantrapromma, K., Chantrapromma, S., Suttirak, R., Ruanwas, P., Boonnak, N., Fun, H.-K.

    Published in Crystallography reports (01-12-2017)
    “…A synthetic route involving 4,6-dimethoxy-2-hydroxy-3-methylbenzoic acid ( 10 ) and 2,4-dimethoxy-6-hydroxy-3-methylbenzoic acid ( 11 ) has been investigated…”
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  7. 7

    Synthesis, spectral studies and structure of 2-hydroxyacetophenone nicotinic acid hydrazone by Sreeja, P.B, Sreekanth, A, Nayar, Chandini R, Prathapachandra Kurup, M.R, Usman, A, Razak, I.A, Chantrapromma, S, Fun, H.K

    Published in Journal of molecular structure (30-01-2003)
    “…2-Hydroxyacetophenone nicotinic acid hydrazone (H2ApNH) was synthesized as a part of our work, in search for non-linear optical crystal based on hydrazones,…”
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  8. 8

    Structural and spectroscopic studies of the adducts of quinuclidine and 3,5-dinitrobenzoic acid by Chantrapromma, S, Usman, A, Fun, H.K, Poh, B.L, Karalai, C

    Published in Journal of molecular structure (21-01-2004)
    “…Two types of adducts of quinuclidine with 3,5-dinitrobenzoic acid, namely quinuclidinium-3,5-dinitrobenzoate and…”
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  9. 9

    Phase transitions in hydrogen-bonded phenol–amine adducts: analysis by ferroelastic theory by Fun, H.-K., Usman, A., Chantrapromma, S., Osman, J., Ong, L.-H., Tilley, D.R., Ishibashi, Y.

    Published in Solid state communications (01-09-2003)
    “…Phase transitions in a recently discovered class of hydrogen-bonded organic crystals are analyzed by Landau theory. It is shown that the transitions are…”
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  10. 10

    Crystal and molecular structures of dinuclear copper(II) and zinc(II) complexes of known macrocyclic tetraimine ligands by Huang, Wei, Gou, Shaohua, Hu, Dahua, Xu, Yan, Chantrapromma, S., Meng, Qinjing

    Published in Journal of molecular structure (12-04-2001)
    “…Dinuclear copper(II) ( 1) and zinc(II) ( 2) macrocyclic complexes were synthesized by the cyclocondensation between sodium 2,6-diformyl-4-chlorophenolate and…”
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  11. 11

    Structural, theoretical and spectroscopic studies of the 1:2 complex of 1,5,7-triazabicyclo[4.4.0]dec-5-ene-4-nitrophenol by Ng, S.W., Naumov, P., Chantrapromma, S., Shanmuga Sundara Raj, S., Fun, H.-K., Ibrahim, A.R., Wojciechowski, G., Brzezinski, B.

    Published in Journal of molecular structure (02-05-2001)
    “…In the crystal of the 1:2 complex of 1,5,7-triazabicyclo[4.4.0]dec-5-ene with 4-nitrophenol one hydrogen atom of the phenolic group is transferred to the TBD…”
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  12. 12

    Cooperative intramolecularly hydrogen-bonded motif in the structure of 2:2 complex of TBD with 4-nitrocatechol by Ng, S.W, Naumov, P, Chantrapromma, S, Raj, S.S.S, Fun, H.-K, Ibrahim, A.R, Wojciechowski, G, Brzezinski, B

    Published in Journal of molecular structure (19-07-2001)
    “…In the crystal of the 2:2 complex of 1,5,7-triazabicyclo[4.4.0]dec-5-ene with 4-nitrocatechol the proton from 1-hydroxyl group of 4-nitrocatechol moiety is…”
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    Cytotoxic and Antibacterial Sesquiterpenes from Thespesia populnea by Boonsri, Sompong, Karalai, Chatchanok, Ponglimanont, Chanita, Chantrapromma, Suchada, Kanjana-opas, Akkharawit

    “…Eight new sesquiterpenoids, named populene A−H (1−8), were isolated from dichloromethane extracts of the wood and dark heartwood of Thespesia populnea,…”
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    Methyl (SR)-10-chloro-1,2,3,4,5,6-hexahydro-6-hydroxy-8-methoxy-1-methyl-1,9-phenanthroline-6-carboxylate by Usman, Anwar, Razak, Ibrahim Abdul, Chantrapromma, Suchada, Fun, Hoong-Kun, Sarkar, Tarun K., Basak, Sankar, Nigam, Gur Dayal

    “…In the title compound, C16H19ClN2O4, the pyridine ring is nearly planar, the piperidine ring is non‐planar and the cyclo­hexane ring adopts a screw‐boat…”
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