1999
DOI: 10.1002/(sici)1099-1565(199909/10)10:5<279::aid-pca464>3.0.co;2-3
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1H and13C-NMR and biological activity investigations of four lichen-derived compounds
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Cited by 56 publications
(24 citation statements)
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“…The aromatic region of the 1 H NMR spectra showed signals at δ 7.38−7.49, integrating for 10 protons, and a signal at δ 3.91, integrating for three protons, thus indicating the presence of a methoxy group. The proton spectrum (Table ) is in close agreement with the literature. , …”
Section: Resultssupporting
confidence: 88%
“…The aromatic region of the 1 H NMR spectra showed signals at δ 7.38−7.49, integrating for 10 protons, and a signal at δ 3.91, integrating for three protons, thus indicating the presence of a methoxy group. The proton spectrum (Table ) is in close agreement with the literature. , …”
Section: Resultssupporting
confidence: 88%
“…The HRESIMS, IR, 1 H, 13 C, COSY, HMQC, and HMBC data acquired for compound 2 were comparable to the data acquired for pulveraven A (1). A comparison of the 13 C NMR data, however, revealed different chemical shifts for carbons C-7 through C-11 (Table 1), indicating a variation near the lactone ring.…”
Section: Analysis Of the Cosy Spectra Revealed Spin-systems A (H-4 Hsupporting
confidence: 52%
“…The purified vulpinic acid compound showed greater activity than the total extract from V. pinastri, which is the opposite result of that shown by usnic acid and the extract from C. amaurocraea. Our findings are supported by previous reports that vulpinic acid, at 50 lg/plate, inhibited the growth of several fungi (König and Wright 1999).…”
supporting
confidence: 93%
“…9). 1 HNMR spectrum (see Figure S1 ) very similar to that previously reported [ 10 , 11 ]; ESIMS (+) m/z : 345 [M + H] + (see Figure S2 ).…”
Section: Methodssupporting
confidence: 83%
