3 article(s) from Fukaya, Keisuke
- Full Research Paper
- Published 27 Aug 2021
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Figure 1: Structures of nomimicins A–D (4 and 1–3).
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Figure 2: COSY and key HMBC correlations for 1.
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Figure 3: Relative configuration of 1 determined by ROESY analysis.
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Figure 4: Experimental ECD spectra of 1, 2, and 4 and calculated ECD spectrum of 4.
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Figure 5: Four tautomers 4a–4d of the tetronic acid moiety of 4 and calculated ECD spectra.
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Figure 6: COSY and key HMBC correlations for 3.
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Figure 7: Relative configuration of 3 determined by NOESY analysis.
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- Full Research Paper
- Published 25 May 2020
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Figure 1: Structures of pseudosporamide (1) and pseudosporamicins A–C (2–4).
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Figure 2: COSY, key HMBC and ROESY correlations of pseudosporamide (1).
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Figure 3: 1H NMR ΔδS−R values for PGME amides 5a and 5b obtained from compound 1.
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Figure 4: The opposite axial chirality around the biaryl C-6–C-7'' bond influenced by the C-2 configuration i...
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Figure 5: The experimental and calculated ECD spectra in MeCN.
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Figure 6: COSY, key HMBC and NOESY correlations of compound 2.
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Figure 7: NOESY correlations for the spiroacetal moiety of compound 2.
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Figure 8: Selected examples of oligomycin-class metabolites from actinomycetes.
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- Full Research Paper
- Published 09 Dec 2019
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Figure 1: Structures of compounds 1–7.
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Figure 2: Key HMBC correlations and two possible structures (a and b) for karimunone A (1).
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Figure 3: Key HMBC correlations for karimunone B (2).
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