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Showing 1-28 of 28 results for "110469" within Papers
Ken K Qian et al.
Journal of pharmaceutical sciences, 100(7), 2801-2815 (2011-02-22)
Spontaneous crystalline-to-amorphous phase transformation of organic or medicinal molecules in the presence of mesoporous materials has been observed, for which pathway was suggested to be via the vapor phase, that is, sublimation of the crystalline molecules followed by adsorption on
Nien-Hsin Kao et al.
Environmental science and pollution research international, 22(10), 7529-7546 (2015-02-26)
The sources of the spill and the contaminated soils of an aged oil spill contaminated site with unknown mixed pollutants were investigated by using a set of developed forensic chemical procedures which include analysis of oil products, site investigation, gas
Chun Yang et al.
Journal of chromatography. A, 1216(20), 4475-4484 (2009-03-27)
This study presents a quantitative gas chromatography-mass spectrometry analysis of bicyclic sesquiterpanes (BSs) in numerous crude oils and refined petroleum products including light and mid-range distillate fuels, residual fuels, and lubricating oils collected from various sources. Ten commonly recognized bicyclic
Mohit Kumar et al.
Nanoscale, 3(5), 2130-2133 (2011-03-30)
Naphthalene diimide (NDI) bolaamphiphilic molecules (1) self-assemble in water to form organic nanoparticles, which exhibit self-assembly induced preassociated excimer formation and hence an enhanced green fluorescence.
Kou-San Ju et al.
Molecular microbiology, 74(4), 826-843 (2009-10-24)
Many toxic man-made compounds have been introduced into the environment, and bacterial strains that are able to grow on them are ideal model systems for studying the evolution of metabolic pathways and regulatory systems. Acidovorax sp. strain JS42 is unique
Antiproliferative and calcemic actions of trans-decalin CD-ring analogs of 1,25-dihydroxyvitamin D3.
Guy Eelen et al.
Anticancer research, 29(9), 3579-3584 (2009-08-12)
1,25-Dihydroxyvitamin D3 [1,25(OH)2D3] has potent antiproliferative actions but calcemic effects obstruct its application in the treatment of hyperproliferative disorders. Therefore, analogs of 1,25-(OH)2D3 are designed with a clear dissociation between both effects. Here the biological activity of the trans-decalin CD-ring
Sabir Hussain et al.
Journal of the American Chemical Society, 133(6), 1614-1617 (2011-01-25)
Decalins bearing two axial -NHCONHAr substituents and an ester-linked alkyl side chain have been synthesized and studied as anion receptors and transporters. The design relates to steroid-based "cholapods" but is more compact and less intrinsically lipophilic. Transport rates depend on
Total synthesis of the antibiotic branimycin.
Stefan Marchart et al.
Angewandte Chemie (International ed. in English), 49(11), 2050-2053 (2010-02-11)
Rodney A Rosalia et al.
Biomaterials, 40, 88-97 (2014-12-04)
Dendritic cells (DC) play a prominent role in the priming of CD8(+) T cells. Vaccination is a promising treatment to boost tumor-specific CD8(+) T cells which is crucially dependent on adequate delivery of the vaccine to DC. Upon subcutaneous (s.c.)
Wei Liu et al.
Science (New York, N.Y.), 337(6100), 1322-1325 (2012-09-18)
Despite the growing importance of fluorinated organic compounds in drug development, there are no direct protocols for the fluorination of aliphatic C-H bonds using conveniently handled fluoride salts. We have discovered that a manganese porphyrin complex catalyzes alkyl fluorination by
Sylvie Goncalves et al.
The Journal of organic chemistry, 76(9), 3274-3285 (2011-03-31)
An unprecedented and highly diastereoselective 6-endo-trig cyclization of 2-alkenyl-1,3-dithiolanes has been developed yielding trans-decalins, an important scaffold present in numerous di- and triterpenes. The novelty of this 6-endo-trig cyclization stands in the stepwise mechanism involving 2-alkenyl-1,3-dithiolane, acting as a novel
Yun-Tian Zhang et al.
Journal of Asian natural products research, 11(9), 792-795 (2010-02-26)
A new decalin derivative, monascusic acid A (1), together with a new natural product (2), was isolated from the ethanol extract of red yeast rice. Their structures were elucidated by spectroscopic methods.
Lin Zhu et al.
Journal of natural products, 75(4), 567-571 (2012-03-08)
Five new decalin derivatives (1-5), together with two known compounds (6 and 7), were isolated from the ethyl acetate extract of red yeast rice. Their structures were elucidated by means of NMR and mass spectroscopic analyses. Monascusic lactone A (1)
Shinichi Kaiya et al.
The Journal of general and applied microbiology, 58(3), 211-224 (2012-08-11)
Three strains of aerobic chemoorganotrophic naphthalene-degrading bacteria (designated TSY03b(T), TSY04, and TSW01) isolated from sediment of a polychlorinated-dioxin-transforming microcosm were characterized. These strains had Gram-negative-stained, rod-shaped cells measuring 0.6‒0.9 μm in width and 1.2‒3.0 μm in length and were motile
Blandine Ressault et al.
Organic letters, 14(1), 366-369 (2011-12-14)
The addition of 0.5 equiv of TiCl(4) to (cyclo)alkanones tethered to α,β-unsaturated ketones afforded polyfunctionalized diquinanes, hydrindanes, and decalines. These products, resulting from a Michael-aldol or a Baylis-Hillman reaction, can be obtained with high or total diastereoselectivity in moderate to
Discussion on "A comprehensive two-dimensional gas chromatography coupled with quadrupole mass spectrometry approach for identification of C10 derivatives from decalin" by C. Flego, N. Gigantiello, W.O. Parker, Jr., V. Calemma [J. Chromatogr. A 1216 (2009) 2891].
Laurent Piccolo et al.
Journal of chromatography. A, 1217(37), 5872-5873 (2010-08-11)
Lei Chen et al.
Organic letters, 13(14), 3580-3583 (2011-06-16)
Regio-, stereo-, and facial selective [4 + 2] cycloadditions between highly activated vinyl sulfones and 1,3-dienes derived from (R)-4-tert-butyldimethylsilyloxy-2-cyclohexen-1-one provide a powerful approach for the asymmetric synthesis of compounds containing the bicyclo[2.2.2]octanone carbon skeleton. This new methodology has been successfully
Jian-cheng Fan et al.
Huan jing ke xue= Huanjing kexue, 31(3), 793-800 (2010-04-03)
In this study,two elite rice inbred lines, Nipponbare and Mastumae were selected and irrigated with naphthalene solution with different concentrations. Epigenetic instabilities in the blade of the plants in tillering and heading stage were assessed by MSAP marks. The results
Pranjal Chandra et al.
Biosensors & bioelectronics, 39(1), 139-144 (2012-08-14)
A highly sensitive and selective method is developed for the simultaneous detection of dopamine (DA) and acetaminophen (AP) by reactive blue-4 (RB4) dye entrapped poly1,5-diaminonaphthalne (polyDAN) composite film layer. The polyDAN-RB4 composite is electrochemically developed at glassy carbon electrode. The
Tomasz Janowski et al.
Journal of the American Chemical Society, 134(42), 17520-17525 (2012-09-27)
The stacking interaction between π systems is a well-recognized structural motif, but stacking between σ systems was long considered of secondary importance. A recent paper points out that σ stacking can reach the energy of chemical bonds and concludes that
Hiroaki Miyaoka et al.
Chemical communications (Cambridge, England), 48(6), 901-903 (2011-12-06)
Total synthesis of antimalarial diterpenoid (+)-kalihinol A, isolated from marine sponge Acanthella sp., is achieved. This total synthesis involves regioselective alkylation of an epoxide, construction of a tetrahydropyran ring by iodo-etherification, construction of a cis-decalin ring by intramolecular Diels-Alder reaction
Joseph B Lim et al.
The journal of physical chemistry. B, 116(1), 203-210 (2011-12-06)
A modification of the CHARMM36 lipid force field (C36) for cholesterol, henceforth, called C36c, is reported. A fused ring compound, decalin, was used to model the steroid section of cholesterol. For decalin, C36 inaccurately predicts the heat of vaporization (~10
Franco Cataldo et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 77(5), 998-1004 (2010-09-25)
Oleum (fuming sulphuric acid), a well known superacid, was used as medium for the generation of the radical cation of a series of selected PAHs. The resulting radical cation spectra were studied by electronic absorption spectroscopy. Not only common PAHs
Xiaozu Liu et al.
Organic letters, 14(11), 2886-2889 (2012-05-19)
A concise enantioselective synthesis of (-)-teucvidin has been achieved. Our synthetic strategy involved the diastereoselective Michael/Conia-ene cascade cyclization reaction for rapid establishment of the cis-decalin skeleton with three new stereogenic centers in one pot (72%, single diastereomer), the epoxidation/dealkoxycarbonylation protocol
Shaik Anwar et al.
Organic letters, 13(9), 2200-2203 (2011-04-12)
An efficient and unprecedented organocatalytic reaction of γ-nitroketones with α,β-unsaturated aldehydes to give polyfunctionalized [4.4.0] bicyclic skeletons was developed. The diphenylprolinol silyl ether mediated nitro-Michael/Aldol reaction afforded the hexa-substituted decalin carboaldehydes with excellent diastereo- and enantioselectivity (up to >99:1 dr
D Kruk et al.
The Journal of chemical physics, 137(4), 044512-044512 (2012-08-03)
(1)H relaxation dispersion of decalin and glycerol solutions of nitroxide radicals, 4-oxo-TEMPO-d(16)-(15)N and 4-oxo-TEMPO-d(16)-(14)N was measured in the frequency range of 10 kHz-20 MHz (for (1)H) using STELAR Field Cycling spectrometer. The purpose of the studies is to reveal how
Christie Aroulanda et al.
The journal of physical chemistry. B, 113(31), 10628-10640 (2009-07-16)
The conformational dynamics and orientational behavior of two model cyclic molecules, cis-decalin (cis-dec) and tetrahydrofurane (THF), dissolved in weakly ordering, polypeptidic chiral liquid crystals (CLCs) are theoretically discussed and experimentally investigated using deuterium and carbon-13 NMR spectroscopies. The analysis of
Shin Aoki et al.
Chemistry, an Asian journal, 7(5), 944-956 (2012-02-09)
We have previously reported that the trimeric Zn(2+)-cyclen complex (tris(Zn(2+)-cyclen), [Zn(3)L(1)](6+)) and the trianion of trithiocyanuric acid (TCA(3-)) assembled in a 4:4 ratio to form a cuboctahedral supramolecular cage, [(Zn(3)L(1))(4)(TCA(3-))(4)](12+) (hereafter referred to as a Zn-cage), in neutral aqueous solution
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