Five new monoterpene glycosides, ovatolactone 7-O-(6′-O-p-hydroxybenzoyl)-β-D-glucopyranoside, ovatic acid methyl ester 7-O-(6′-O-p-hydroxybenzoyl)-β-D-glucopyranoside, 7-O-p-hydroxybenzoylovatol 1-O-(6′-O-phydroxybenzoyl)-β-D-glucopyranoside, 6′-O-p-hydroxybenzoylcatalposide and (2E,6R)-2,6-dimethyl-8-hydroxy-2-octenoic acid 8-O-[6′-O-(E)-p-coumaroyl]-β-D-glucopyranoside were isolated from the fallen leaves of Catalpa ovata G. Don. Their structures were determined by extensive spectroscopic studies and syntheses.
CITATION STYLE
Machida, K., Ando, M., Yaoita, Y., Kakuda, R., & Kikuchi, M. (2001). Studies on the constituents of Catalpa species. VI. Monoterpene glycosides from the fallen leaves of Catalpa ovata G. Don. Chemical and Pharmaceutical Bulletin, 49(6), 732–736. https://doi.org/10.1248/cpb.49.732
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