scholarly journals Structures of polygalacin-D and -D2, platycodin-D and -D2, and their monoacetates, saponins isolated from Platycodon grandiflorum A. DC., determined by carbon-13 nuclear magnetic resonance spectroscopy.

1978 ◽  
Vol 26 (2) ◽  
pp. 674-677 ◽  
Author(s):  
HIROSHI ISHII ◽  
KAZUO TORI ◽  
TAKEHIKO TOZYO ◽  
YOHKO YOSHIMURA
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