Results 141 to 150 of about 19,944 (197)

Analytical Challenges in Detecting New Psychoactive Substances in Anti-Doping: A Proof-of-Concept Involving Pentedrone Metabolite. [PDF]

Drug Test Anal
Kwiatkowska D, Peta B, Grucza K, Łabęcka A, Konarski P, Wojtkowiak K, Grela K, Sytniczuk A, Wicka M.   +8 more
europepmc   +1 more source

Asymmetric Total Syntheses of Eliglustat and C2-<i>epi</i>-Eliglustat. [PDF]

J Org Chem
Mellado-Hidalgo M, Costa AM, Romea P, Urpí F, Aullón G.   +4 more
europepmc   +1 more source

Synthesis and characterization of γ-acyloxyl-ε-caprolactones. [PDF]

iScience
Greischar G, Gono Phiri T, Haljun E, Ray J, Ourgessa M, Thesing G, Lofving L, Clarkson A, Bator S, Jno Baptise D, Cole W, Itschner M, Getzler YDYL.   +12 more
europepmc   +1 more source

Dispiroindolinone-Glutarimide Conjugates: Synthesis and Evaluation as Potential Hetero-PROTACs for p53 Reactivation. [PDF]

Molecules
Polyakov VS, Grishin YK, Tafeenko VA, Ivanova ES, Pogodaeva SS, Moldavskii DV, Shtil AA, Beloglazkina EK.   +7 more
europepmc   +1 more source

Circumventing Mukaiyama oxidation: selective S-O bond formation via sulfenamide-alcohol coupling. [PDF]

Beilstein J Org Chem
Huang G, Zhu H, Zhou S, Zheng W, Liang F, Zhao Z, Chen Y, Lu X.   +7 more
europepmc   +1 more source

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Chromatographic behaviour of diastereomers

Journal of Chromatography A, 1977
For diastereomers of the types RM values on silica gel are investigated as a function of the mole fraction of the more polar solvent in binary solvent systems, according to Soczewinski's method. The correlation between RF and pKa is discussed, and thin-layer chromatographic comparison between acyclic and cyclic compounds is made.
M.D. Palamareva, B.J. Kurtev
openaire   +2 more sources

Constellational diastereomers in encapsulation complexes

Chemical Communications, 2004
Three chiral guests in a cylindrical capsule led to six diastereomeric complexes.
Masamichi, Yamanaka, Julius, Rebek
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Ciguatoxin-2 is a diastereomer of ciguatoxin-3

Toxicon, 1993
Ciguatoxin-2, a major ciguatoxin present in the flesh and viscera of ciguateric fishes, has been shown by 1H nuclear magnetic resonance studies (2-dimensional homonuclear Hartman Hahn, nuclear Overhauser effect and decoupling difference experiments) to be a diastereomer of ciguatoxin-3, differing only in stereochemistry at carbon 52 (a quaternary ...
Lewis, RJ, Norton, RS, Brereton, IM, Eccles, CD   +3 more
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Synthesis of diastereomers of sarcolysylleucine

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1978
1. The diastereomers of sarcolysylleucine with a formylated and free amino group in sarcolysine residue were obtained by using the N-ethoxycarbonyl-2-ethoxy-1, 2-dihydroquinoline method to form the peptide linkage. 2. The possibility of deformylating peptides, containing the di-2-chloroethyl group, by hydrazine acetate was studied.
K. I. Karpavichyus, R. B. Klyukene, O. V. Kil'disheva   +2 more
openaire   +1 more source

On the Chemistry of the Resveratrol Diastereomers

Monatshefte f�r Chemie / Chemical Monthly, 2003
The (E)- and (Z)-diastereomers of resveratrol were investigated with respect to their photochemical and thermal diastereomerization reactions. The free enthalpy difference between the two diastereomers was estimated to be in the order of common stilbenes, with the (E)-diastereomer more stable by about 11–14 kJ mol−1. The Arrhenius activation barrier of
Martin Deak, Heinz Falk
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