title: Two new C-glucosyl benzoic acids and flavonoids from Mallotus nanus and their antioxidant activity.
abstract: Two new 2-C-beta-D-glucopyranosyl benzoic acid derivatives named mallonanosides A (1) and B (2) were isolated from the methanolic extract of the leaves of Mallotus nanus along with five known flavonoids, kaempferin (3), juglanin (4), quercitrin (5), myricitrin (6), and rhoifolin (7). Their structures were established on the basis of spectral and chemical evidence. Their antioxidant activities were shown to depend on the number of hydroxyl groups, and the location and species of sugar moiety.
authors.affiliation: Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam.
authors.forename: Van Kiem
authors.initials: VK
authors.lastname: Phan
authors.forename: Thi Mai
authors.initials: TM
authors.lastname: Nguyen
authors.forename: Chau Van
authors.initials: CV
authors.lastname: Minh
authors.forename: Huu Khoi
authors.initials: HK
authors.lastname: Nguyen
authors.forename: Hai Dang
authors.initials: HD
authors.lastname: Nguyen
authors.forename: Phuong Thao
authors.initials: PT
authors.lastname: Nguyen
authors.forename: Xuan Cuong
authors.initials: XC
authors.lastname: Nguyen
authors.forename: Hoai Nam
authors.initials: HN
authors.lastname: Nguyen
authors.forename: Xuan Nhiem
authors.initials: XN
authors.lastname: Nguyen
authors.forename: Yvan Vander
authors.initials: YV
authors.lastname: Heyden
authors.forename: Joëlle
authors.initials: J
authors.lastname: Quetin-Leclercq
authors.forename: Gyo Nam
authors.initials: GN
authors.lastname: Kim
authors.forename: Hae Dong
authors.initials: HD
authors.lastname: Jang
authors.forename: Young Ho
authors.initials: YH
authors.lastname: Kim
mesh_terms: D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D016166:Free Radical Scavengers / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D005707:Gallic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D036461:Mallotus Plant; D010936:Plant Extracts / Q000494:pharmacology; D018515:Plant Leaves / Q000737:chemistry; D017382:Reactive Oxygen Species / Q000037:antagonists & inhibitors; D013329:Structure-Activity Relationship; D014641:Vanillic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology
chemical_list: D000975:Antioxidants; D005419:Flavonoids; D016166:Free Radical Scavengers; D005960:Glucosides; D010936:Plant Extracts; D017382:Reactive Oxygen Species; C550007:mallonanoside A; C550008:mallonanoside B; D005707:Gallic Acid; D014641:Vanillic Acid