8 article(s) from Stadler, Marc
- Full Research Paper
- Published 04 Jun 2021
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Figure 1: Structures of fulvoferruginin (1) and the newly isolated derivatives fulvoferruginins B–F (2–6).
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Figure 2: KEY HMBC (arrows) and COSY (thick bonds) correlations of compounds 2 and 3.
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Figure 3: Key ROESY correlations of metabolite 3.
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- Full Research Paper
- Published 16 Dec 2019
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Figure 1: Chemical structures of the isolated compounds 1–6.
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Figure 2: Experimental and TDDFT-calculated ECD spectra of compounds 1 (A), 2 (B), and 3 (C) in MeOH.
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Figure 3: A) Selected COSY (bold bonds) and HMBC (red arrows) correlations for compounds 2 and 3. B) Partial ...
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Figure 4: Chemical structures of selected, literature-known compounds that are related to this study.
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Figure 5: HPLC–UV–vis profiles (200–600 nm) generated from the culture filtrate extracts of several isolates ...
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Figure 6: HPLC–UV–vis profiles (200–600 nm) generated from the culture filtrate extracts of several isolates ...
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- Full Research Paper
- Published 19 Nov 2019
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Figure 1: HPLC–UV chromatogram of the extract from fruiting bodies of Skeletocutis sp. (detection wavelength ...
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Figure 2: Chemical structures of compounds 1–6.
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Figure 3: Inhibition Leu-AMC hydrolysis. a) c (ʟ-Leu-AMC) = 100 µM. b) c (ʟ-Leu-AMC) = 50 µM.
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- Full Research Paper
- Published 30 Apr 2019
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Figure 1: Structures of the isolated metabolites bovistol A (1), its new derivatives bovistol B (2) and C (3)...
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Figure 2: Relative normalized expression of the putative sesquiterpene synthase genes going by the gene IDs A...
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- Full Research Paper
- Published 04 Dec 2018
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Figure 1: Structures of fungal volatiles. Trichodiene (1), aristolochene (2), (R)-oct-1-en-3-ol (3), 3,4-dime...
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Figure 2: Total ion chromatogram of a CLSA headspace extract from Hypoxylon griseobrunneum MUCL 53754. Peak n...
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Figure 3: Volatiles from Hypoxylon griseobrunneum.
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Figure 4: EI mass spectra of A) 2,4,5-trimethylanisole (24), B) the coeluting mixture of 3,4-dimethylanisole (...
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Scheme 1: Synthesis of trimethylanisoles 24 and 24d.
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Scheme 2: Hypothetical biosynthesis of 24. ACP: acyl carrier protein, AT: acyl transferase, KR: ketoreductase...
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Figure 5: Biosynthesis of 24. Feeding of (methyl-2H3)methionine resulted in the incorporation of labelling in...
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Scheme 3: Hypothetical biosynthesis of 25 and 26.
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Figure 6: Total ion chromatogram of a CLSA headspace extract from Hypoxylon macrocarpum STMA 130423. Peak num...
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Figure 7: Volatiles from Hypoxylon macrocarpum.
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Figure 8: EI mass spectra of A) 3,4-dimethoxybenzaldehyde (42), B) 3,4,5-trimethoxytoluene (44), and C) 2,4,5...
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Scheme 4: Synthesis of 2,3,4-trimethoxytoluene (44a).
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- Full Research Paper
- Published 26 Jun 2018
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Figure 1: Lanyamycin (1/2), differing at C-26, isolated from Sorangium cellulosum (Soce 481).
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Figure 2: Structure fragments of lanyamycin (1/2) from 1H,1H-COSY spectrum (bold bonds) and selected 1H,13C-H...
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Figure 3: Structure of bafilomycin A1.
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Figure 4: 3D Model of the macrolactone ring of lanyamycin (1/2) and selected ROESY correlations. Green arrows...
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Figure 5: HCV assay: NC = negative control, EGCG = positive control, Cpd1 = lanyamycin (1/2).
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- Full Research Paper
- Published 29 Mar 2018
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Figure 1: Structures of the widespread fungal volatiles oct-1-en-3-ol (1) and 6-pentyl-2H-pyran-2-one (2), th...
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Figure 2: Total-ion chromatogram of the bouquet from Hypoxylon invadens MUCL 54175 obtained by the CLSA heads...
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Figure 3: Identified volatile organic compounds from Hypoxylon invadens MUCL 54175.
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Figure 4: Mass spectra of volatiles from Hypoxylon invadens MUCL 54175. Mass spectra of A) 2,5-dimethylphenol...
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Scheme 1: Proposed common biosynthetic pathway to volatile aromatic compounds from Hypoxylon invadens.
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Scheme 2: Synthesis of 5-hydroxy-2-methyl-4H-chromen-4-one (19).
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- Full Research Paper
- Published 12 Jan 2018
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Scheme 1: A selection of widespread fungal volatiles.
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Figure 1: Total ion chromatogram of a representative headspace extract from Daldinia clavata MUCL 47436. Peak...
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Scheme 2: Identified volatiles from Daldinia clavata MUCL 47436.
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Figure 2: Mass spectra of volatiles from D. clavata that were identified by synthesis.
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Scheme 3: Synthesis of manicone (10).
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Scheme 4: Synthesis of a racemic mixture of all four diastereomers of 11.
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Figure 3: Gas chromatographic analysis of 11 on a homochiral stationary phase. a) Synthetic mixture of all ei...
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Scheme 5: Enantioselective synthesis of (4R,5S,6S)-11c and (4S,5R,6S)-11d.
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Scheme 6: Epimerisations of (4R,5S,6S)-11c and (4S,5R,6S)-11d under basic conditions.
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Figure 4: Gas chromatographic analysis of 11 on a homochiral stationary phase. a) Synthetic mixture of all ei...
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Scheme 7: Proposed biosynthesis for (4R,5R,6S)-11a.
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Figure 5: Mass spectra of a) 6-methyl-5,6-dihydro-2H-pyran-2-one (9), b) 6-propyl-5,6-dihydro-2H-pyran-2-one,...
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Scheme 8: Synthesis of 6-methyl-5,6-dihydro-2H-pyran-2-one (9) and 6-nonyl-2H-pyran-2-one (17).
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