Matsutake alcohol glycosides from Sanchezia nobilis

摘要

Phytochemical investigation of the aerial parts of Sanchezia nobilis Hook. (Acanthaceae) has yielded matsutake alcohol (1-octen-3-ol) (1) and four matsutake alcohol glycosides identified as 3-O-β-glucopyranosyl-1-octen-3- ol (2), 3-O-β-glucopyranosyl-(1→6)-β-glucopyranosyl-1-octen-3-ol (3), 3-O-α-arabinopyranosyl-(1→6)-β-glucopyranosyl-1-octen-3-ol (4), and 3-O-α-arabinopyranosyl-(1→6)-β-glucopyranosyl- (1→6)-β-glucopyranosyl-1-octen-3-ol (5). The structures of the isolated compounds were assigned on the basis of different techniques of NMR spectral analysis. Compounds 1-4 have been isolated here for the first time from the family Acanthaceae, while compound 5 is isolated here for the first time from a natural source.