Isomerisation of quillaic acid and echinocystic acid with hydrochloric acid

✍ Scribed by Tokuo Kubota; Hisako Kitatani; Hiroshi Hinoh

• Book ID: 104239132
• Publisher: Elsevier Science
• Year: 1969
• Tongue: French
• Weight: 185 KB
• Volume: 10
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(01)87805-9

✦ Synopsis

An acid hydrolysis of the extract of the roots of Saponaria officinalis L. ,* which is cultivated in the central district of Japan, afforded, after chromatogmphy on silica gel, two triterpenoid acids, gypsogenic acid (Ia) (2),m.p. >330°,[ajD+85.6" (MeOH), [Me ester (Ib): m.p. 242-247°,]a]D+76.80]** and quillaic acid (IIa) (3), m.p. 258-265" (dec), [a], +65.0° (MeOH), [Me ester (IIb): m.p. 200-205' (dec), [a] +50.1' I.***