Antioxidant lignoids from leaves of Ribes nigrum

• Published in: Phytochemistry (Oxford) Vol. 95; pp. 333 - 340
• Main Authors: Sasaki, Tatsunori, Li, Wei, Zaike, Shinnosuke, Asada, Yoshihisa, Li, Qin, Ma, Fenghua, Zhang, Qingbo, Koike, Kazuo
• Format: Journal Article
• Language: English
• Published: OXFORD Elsevier Ltd 01.11.2013; Elsevier
• Subjects: Antioxidant activity; Antioxidants; Antioxidants - chemistry; Antioxidants - isolation & purification; Antioxidants - pharmacology; Biochemistry & Molecular Biology; Biphenyl Compounds; Biphenyl Compounds - metabolism; chemical analysis; chemistry; Dilignan; free radical scavengers; Furans; Furans - chemistry; Furans - isolation & purification; Furans - pharmacology; Grossulariaceae; isolation & purification; leaves; Life Sciences & Biomedicine; Lignan; Lignans; Lignans - chemistry; Lignans - isolation & purification; Lignans - pharmacology; metabolism; Molecular Structure; pharmacology; Picrates; Picrates - metabolism; Plant Extracts; Plant Extracts - chemistry; Plant Extracts - pharmacology; Plant Leaves; Plant Leaves - chemistry; Plant Sciences; Ribes; Ribes - chemistry; Ribes nigrum; Science & Technology; Sesquilignan; spectroscopy; Structure-Activity Relationship; superoxide anion; Superoxides; Superoxides - metabolism; Ribes nigrum; Lignan; Grossulariaceae; Sesquilignan; Antioxidant activity; Dilignan; PRODELPHINIDINS; ASCORBIC-ACID; CONSTITUENTS

7,7′-Epoxylignans, tetrahydrofuran-type sesquilignans and spirocyclic dilignans were isolated from leaves of Ribes nigrum. Ribesin D and ribesin G showed potent superoxide anion scavenging activity. •Eight lignoids were isolated from Ribes nigrumleaves.•First report of 7,7′-epoxylignans, sesquiligna...