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Beilstein J. Org. Chem. 2019, 15, 1575–1580, doi:10.3762/bjoc.15.161
Graphical Abstract
Scheme 1: Synthetic pathway of 9-O-R BBR.
Scheme 2: Resonance of berberrubine leading to the failure of direct BBRB cross coupling.
Scheme 3: 9-O-Aryl berberine scope via cross-coupling reaction.
Scheme 4: 9-O-Ph-linked berberine dimer through double cross-coupling reaction.
Beilstein J. Org. Chem. 2018, 14, 2404–2410, doi:10.3762/bjoc.14.217
Figure 1: Energy-minimized models of the two macrocycles derived from dC (left) and dU (right) acquired by MM+...
Scheme 1: Synthesis of the 5’-azido-2’,5’-dideoxyribonucleoside 2, the macrocycle 4 and the dimeric compounds ...
Scheme 2: Synthesis of 5’-azido-2’,5’-dideoxyribonucleoside 7 and nucleoside macrocycle 8.
Figure 2: A perspective view of 8 showing the atomic numbering scheme. Displacement ellipsoids are drawn at t...
Figure 3: The crystal packing of 8 shows the intramolecular hydrogen-bonding network (projection parallel to ...
Figure 4: N- and S-conformation for cyclonucleoside 8. B corresponds to nucleobase. ax: axial; eq: equatorial....