4 article(s) from Yannakopoulou, Konstantina
Graphical Abstract
Figure 1: Schematic representation of β-CD with glucopyranose atom numbering and with alphabetic labeling of ...
Scheme 1: Syntheses of 6A,6X-diazido-β-CDs as reference compounds using the “capping” literature method [11,12].
Scheme 2: Syntheses of homo-difunctionalized β-CDs using different reaction conditions.
Figure 2: HPLC chromatograms of the authentic 6A,6X-diazido-β-CDs with known regiochemistry (references 1–3, Scheme 1...
Figure 3: NMR spectral regions of the three ditosyl regioisomers in D2O (500 MHz). The signals of the tosylat...
Scheme 3: Syntheses of 6A-monoazido-6X-monotosyl-β-CDs using starting materials obtained from different react...
Figure 4: Reversed-phase HPLC chromatograms of 6A-monoazido-6X-monotosyl-β-CDs prepared through reactions 4–8....
Figure 5: HPLC separation of regioisomers and pseudoenantiomers of 6A-monoazido-6X-monotosyl-β-CD prepared in...
Figure 6: Reversed-phase HPLC chromatograms of 6A,6X-diazido-β-CDs prepared in reactions 9–13.
Graphical Abstract
Scheme 1: Numbering scheme of one glucopyranose residue (G) of β-CD and the NAcTrp molecule; specific atom la...
Figure 1: 3D maps of the observed dipolar, through-space host–guest interactions depicted so as to (a) reflec...
Figure 2: Two dimers of β-CD–L-NAcTrp, stacked along the a-axis, are shown. Each β-CD dimer (A, B) encloses a...
Figure 3: β-CD–L-NAcTrp complex at the interface between two β-CD dimers along the a-axis (major orientation ...
Figure 4: “β-CD–D-NAcTrp” structure. (a) The herring bone packing of β-CD along the c-axis; (b) The guest (cy...
Figure 5: L-NAcTrp and L-NAcPhe in β-CD dimers (the lines indicate the levels of the O2 and O3 secondary hydr...
Graphical Abstract
Scheme 1: The structure of δ-aminolevulinic acid (1), a precursor in cellular biosynthesis of protoporphyrin ...
Scheme 2: Synthesis of conjugate 2 i) Br2, Ph3P, DMF, 75–80 °C, 93% according to [16]; ii) 2-hydroxyethylamine, 8...
Figure 1: 13C NMR spectrum of 2 (D2O, 125 MHz) with assignment of the peaks.
Figure 2: Representative confocal microscopy images of MCF7 cells incubated with 1 mM 2 (a, b and c), and 1 m...
Figure 3: Representative confocal fluorescence microscopy images of MCF7 cells after incubation with a soluti...
Graphical Abstract
Scheme 1: (a) Staudinger reaction (b) Staudinger ligation, (c) the cyclodextrin structure with glucopyranose ...
Scheme 2: (a) i) HCl, NaNO2/H2O, then KI/H2O, 58%, ii) Ph2PH, Pd(OAc)2, Et3N, MeOH, 48%; (b) i) CH3COOH, H2SO4...
Scheme 3: Staudinger ligation reactions: (a) Preparation of 4 from mono[6-(3-azidopropylamino)-6-deoxy]-β-CD ...
Figure 1: 1H NMR chemical shift change (Δδ) of CD cavity Η3 signal of compounds titrated with 1-adamantylamin...
Figure 2: The most stable conformations of 4 at the PM3(COSMO) level of theory: (a) open, (b) vicinal, and (c...
Figure 3: Typical conformations of 6: (a) open conformation, (b) vicinal, (c) inclusion/vicinal and (d) doubl...