Investigation of the chemical constituents from the roots of Melochia chamaedrys
(Sterculiaceae) resulted in the isolation of two quinolinone alkaloids: a new alkaloid, named …

The cyclic peptide alkaloid, chamaedrine, was isolated from the roots of Melochia
chamaedris (Sterculiaceae), along with four known cyclic peptide alkaloids (adouetine X …

The methanol extract of Melochia odorata yielded three 4-quinolone alkaloids including
waltherione A (1) and two new alkaloids, waltherione C (2) and waltherione D (3) …

Two alkaloids, megistoquinone I (1) and megistoquinone II (2), were isolated from the bark
of Sarcomelicope megistophylla. Their structures have been elucidated on the basis of MS …

An alkaloidal extract of the leaves of Melochia odorata exhibited antifungal activity against
Candida albicans, Cryptococcus neoformans and Saccharomyces cerevisiae using a TLC …

General Experimental Procedures UV spectra were recorded in spectroscopic grade MeOH
on a Shimadzu-160A spectrophotometer. NMR spectra were recorded on Bruker DRX 400 …

Three new furoquinoline alkaloids, melicarpine, semecarpine, and (±)-8-
methoxyplatydesmine, together with a known flavone, ayanin, were isolated from the leaves …

Bioassay-guided fractionation of the alkaloidal extract of the aerial part of Litsea cubeba led
to the isolation of two new isoquinoline alkaloids,(+)-N-(methoxycarbonyl)-N-norboldine (1) …

A cyclopeptide alkaloid, franganine, and a new pseudooxinidole alkaloid, melochicorine,
have been isolated from Melochia corchorifolia. The latter compound was characterized …

Eight new sesquiterpene alkaloids (1–8) and four known sesquiterpene alkaloids (9–12)
have been isolated from the roots of Maytenus mekongensis. Structures were determined …