Two new C-glucosyl benzoic acids and flavonoids from Mallotus nanus and their antioxidant activity.
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.
Phan
Van Kiem
VK
Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam.
Nguyen
Thi Mai
TM
Minh
Chau Van
CV
Nguyen
Huu Khoi
HK
Nguyen
Hai Dang
HD
Nguyen
Phuong Thao
PT
Nguyen
Xuan Cuong
XC
Nguyen
Hoai Nam
HN
Nguyen
Xuan Nhiem
XN
Heyden
Yvan Vander
YV
Quetin-Leclercq
Joëlle
J
Kim
Gyo Nam
GN
Jang
Hae Dong
HD
Kim
Young Ho
YH
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
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