Gunasekera, S P <br/><br/>
Plant anticancer agents X. Isolation of camptothecin and 9-methoxycamptothecin from Ervatamia heyneana.  [electronic resource] 

 -  Journal of natural products   
 - 475-7 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0163-3864 
<br/><br/><label>Standard No.: </label>10.1021/np50005a006  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Antineoplastic Agents, Phytogenic--isolation & purification<br/>Camptothecin--analogs & derivatives<br/>Magnetic Resonance Spectroscopy<br/>Mass Spectrometry<br/>Plants--analysis<br/>Spectrophotometry, Ultraviolet