Chemical Constituents of Cinnamomum iners
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Cinnamomum iners, a species closely similar to C. subcuneatum Miq., is an evergreen medium height tree with reddish brown and smooth branchlets.
Cinnamomum iners is widely distributed in Southeast Asia from Indochina, Sumatra, Pensular Malaysia, Java, and the Philippines .
Previous studies reported the presence of β-caryophyllene, stigmasterol, cardiac glycoside, flavonoid, polyphenol, saponin, sugar, tannin and terpenoid in the tree .
This study was conducted as part of our research on the chemical constituents of Cinnamomum species found in the Philippines. We earlier reported the isolation of a new monoterpene natural product and a new sesquiterpene, along with the known compounds 4-hydroxy-3-methoxycinnamaldehyde, 4-allyl-2-methoxyphenol, α-terpineol, and humulene from the bark of C. cebuense, while the leaves afforded humulene, β-caryophyllene, squalene, and a mixture of α-amyrin, β-amyrin, and bauerenol . We also reported the presence of 1β,4β,7α-trihydroxyeudesmane,...