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001-es BibID:	BIBFORM058850
Első szerző:	Zhang, Peng
Cím:	Structure, absolute configuration, and conformational study of resorcylic acid derivatives and related congeners from the fungus Penicillium brocae / Peng Zhang, Ling-Hong Meng, Attila Mandi, Xiao-Ming Li, Tibor Kurtan, Bin-Gui Wang
Dátum:	2015
ISSN:	2046-2069
Megjegyzések:	In addition to three known resorcylic acid derivatives of the (14 R) series (1-3), six new compounds including one new resorcylic acid derivative (13-hydroxydihydroresorcylide, 4) and five new loop-opened resorcylic acid-related congeners including brocapyrone A (5) and brocaketones A?D (6?9), were isolated and identified from the culture extract of a marine mangrove-derived endophytic fungus Penicillium brocae MA-192. Conformational analysis and TDDFT-ECD calculations of 1, 3, and 4 were carried out to confirm the (14 R) absolute configuration and identify the solution conformers and factors that govern the correlation between stereochemistry and signs of the characteristic ECD bands. The single crystal X-ray of 3 and 5 allowed applying the solid-state TDDFT-ECD approach for 3 to compare the structures of solution and solid-state conformers and correlate the n-?* ECD transition of 5 with the helicity and absolute configuration of the dihydroisocoumarin moiety. All compounds were evaluated for antioxidant activity against DPPH and ABTS radicals.
Tárgyszavak:	Természettudományok Kémiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Royal Society of Chemistry Advances. - 5 : 50 (2015), p. 39870-39877. -
További szerzők:	Meng, Ling-Hong Mándi Attila (1981-) (vegyész, német szakfordító) Li, Xiao-Ming Kurtán Tibor (1973-) (vegyész, angol szakfordító) Wang, Bin-Gui
Pályázati támogatás:	K105871 OTKA NIIFI 10038 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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