Cremastra

Five new biphenanthrenes, cremaphenanthrenes A-E (1-5), along with six known ones, were isolated from the ethanolic extract of… (More)

OBJECTIVE To study the chemical constituents of Cremastra appendiculata. METHODS The compounds were isolated by repeated column… (More)

A new biphenanthrene glucoside, named 2′,7′ -dihydroxy-4,4′-dimethoxy-1,1′-biphenanthrene-2,7-di-O-β-D-glucopyranoside, together… (More)

Compounds were isolated through various chromatographic techniques and their structures were identified by spectroscopic data… (More)

Eleven previously unknown compounds and 23 known compounds, including 20 phenanthrene or 9,10-dihydrophenanthrene derivatives… (More)

Six newphenanthrene derivatives, including three monophenanthrenes (1-3), two biphenanthrenes (4 and 5), and a triphenanthrene (6… (More)

A new pyrrolizidine alkaloid, cremastrine (1), was isolated from the bulbs of Cremastra appendiculata. Its configuration was… (More)

OBJECTIVE To investigate the chemical constituents from the tuber of the planted Cremastra appendiculata. METHOD The compounds… (More)

A homoisoflavanone, 5,7-dihydroxy-3-(3-hydroxy-4-methoxybenzyl)-6-methoxychroman-4-one ( 1), was isolated from the bulb of… (More)

Effective population size ( Ne ) influences the degree to which random genetic drift changes allele frequencies, increases… (More)