title: A novel podophyllotoxin lignan from Justicia heterocarpa.
abstract: Chromatographic separation of the extract of Justicia heterocarpa T. ANDERS. afforded, in addition to known fatty acids, terpenoids and steroids, a new podophyllotoxin lignan. Structures were elucidated by spectroscopic methods, and the structure of the new lignan was confirmed by single crystal X-ray diffraction studies, which have shown that there is a H-bonding stabilized dimer.
authors.affiliation: Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia.
authors.forename: Salih Salem
authors.initials: SS
authors.lastname: Al-Juaid
authors.forename: Mamdouh
authors.initials: M
authors.lastname: Abdel-Mogib
mesh_terms: D027902:Justicia; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification; D035261:Plant Components, Aerial; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification; D011034:Podophyllotoxin / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: D017705:Lignans; D010936:Plant Extracts; D011034:Podophyllotoxin