Chemical constituents from Pseudolarix Kaempferi

Abstract

A novel degraded triterpenoid isopseudolaritone A (1) and one new oligosaccharide, 1-O-isopropyl-6-O-[2-O-methyl-α-l-rhamnopyranosyl(1 → 6)]-β-d-glucopyranose (2), two new artefacts, 9-O-formacyl cedrusin (5) and 9,9′-O-diformacyl cedrusin (6), as well as 12 known phenolic Compounds (3–4, 7–16), were isolated from the root bark of Pseudolarix kaempferi. Their structures were elucidated mainly by spectroscopic methods.