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Molecules 2013, 18(8), 9641-9649; doi:10.3390/molecules18089641
Article

Phenylpropanoid, Sapnol A, Lignan and Neolignan Sophorosides, Saposides A and B, Isolated from Canadian Sugar Maple Sap

* , ,  and
Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
* Author to whom correspondence should be addressed.
Received: 19 July 2013 / Revised: 7 August 2013 / Accepted: 8 August 2013 / Published: 12 August 2013
(This article belongs to the Section Metabolites)
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Abstract

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 410 were isolated. These structures were determined on the basis of NMR experiments as well as chemical evidence. Furthermore, all the isolated compounds 110 were tested for antioxidative activity by the superoxide dismutase (SOD)-like assay.
Keywords: maple sap; Acer saccharum; sapnol; saposide; antioxidant activity; superoxide dismutase (SOD) maple sap; Acer saccharum; sapnol; saposide; antioxidant activity; superoxide dismutase (SOD)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Yoshikawa, K.; Tani, S.; Baba, C.; Hashimoto, T. Phenylpropanoid, Sapnol A, Lignan and Neolignan Sophorosides, Saposides A and B, Isolated from Canadian Sugar Maple Sap. Molecules 2013, 18, 9641-9649.

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