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Beilstein J. Org. Chem. 2024, 20, 470–478, doi:10.3762/bjoc.20.42
Graphical Abstract
Figure 1: Chemical structures of compounds 1–5 isolated from P. boydii CS-793.
Figure 2: Key 1H-1H COSY (bond lines), and HMBC (red arrows) correlations of 1–3.
Figure 3: NOE correlations of compounds 1 and 2 (solid line indicates β-orientation and dashed lines represen...
Figure 4: X-ray crystal structure of compounds 1–3 (with a thermal ellipsoid probability of 50%).
Scheme 1: Proposed biosynthetic pathway for compounds 1–5.
Beilstein J. Org. Chem. 2018, 14, 2394–2395, doi:10.3762/bjoc.14.215
Figure 1: Varioloids A–D.
Beilstein J. Org. Chem. 2016, 12, 2012–2018, doi:10.3762/bjoc.12.188
Figure 1: Structures of the isolated compounds 1 and 2.
Figure 2: Key HMBC (arrows) and COSY (bond lines) correlations of compound 1.
Figure 3: Structure and population of the low-energy B3LYP/6-31G(d) conformers (>2%) of (2R,3R)-1.
Figure 4: Experimental ECD spectrum of 1 in MeCN compared with the computed PBE0/TZVP spectra of the lowest-e...
Figure 5: Torsional angle scans for estimating the rotational energy barrier around the C13−C3’ bond (ωC12−C1...
Figure 6: Transition states for the inversion of the helicity [TS1 (ωC12−C13−C3’−C9’ = 168.1°) and TS2 (ωC12−...
Figure 7: Experimental ECD spectrum of 1 in MeCN compared with the Boltzmann-weighted PBE0/TZVP ECD spectrum ...