Phenylpropanoid, sapnol A, lignan and neolignan sophorosides, saposides A and B, isolated from Canadian sugar maple sap.
One new phenolic compound, sapnol A (1), and two new aromatic sophorosides, named saposides A (2) and B (3) were isolated from sugar maple sap. In addition, seven known phenolic compounds 4-10 were isolated. These structures were determined on the basis of NMR experiments as well as chemical evidence. Furthermore, all the isolated compounds 1-10 were tested for antioxidative activity by the superoxide dismutase (SOD)-like assay.
Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan. yosikawa@ph.bunri-u.ac.jp
Kazuko
K
Yoshikawa
Sakiko
S
Tani
Chihiro
C
Baba
Toshihiro
T
Hashimoto
D031002:Acer / Q000737:chemistry*; D000975:Antioxidants / Q000008:administration & dosage / Q000737:chemistry; D002170:Canada; D006801:Humans; D017705:Lignans / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010636:Phenols / Q000737:chemistry* / Q000302:isolation & purification
D000975:Antioxidants; D017705:Lignans; D010636:Phenols