The leaves of Lyonia ovalifolia SIEB. et ZUCC. var. elliptica HAND.-MAZZ. were extracted successively, with benzene and methanol From the benzene extract, nonacosane, 2-nonacosanone (a new compound), 1-triacontanol, ursolic acid, lyofolic acid (a new compound), and a trace of β-sitosterol were isolated. From the methanol extract, β-sitosteryl β-D-glucoside was separated. 2-Nonacosanone C
29H
58O, colorless plates, m.p. 81°, whose infrared spectrum is shown in Fig. 1, gave nonacosane C
20H
60, m.P. 63∼64°, by the Huns-Minlon reduction. Lyofolic acid, C
58H
62O
1O·2H
2O, colorless plates (from ethyl acetate), m.p. 136°, or C
38H
62O
10, colorless grains (from boiling benzene), m.p. 192°, is a hydroxytriterpenecarboxylic acid, containing a glucose residue and an O-acetyl group [C
29H
47(COOH)(OC
6H
11O
5)(OCOCH
3)].
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