A. A. Shamyrina

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The f i r s t subs tance had the composi t ion C21H20010, mp 228-232°C, Rf 0.2 (15% acetic acid), UV spect r u m : kma x (ethanol) 338, 269 nm. Acid hydro lys i s gave the aglycone, which was identified as apigenin, and D-glucose . The IR s p e c t r u m of the glucoside showed c h a r a c t e r i s t i c bands at (cm -1) 1080, 1050, and 780 (the v ibra t(More)
i. A.A. Shamyrina, V. A. Peshkova, and N. I. Shergina, Khim. Prirodn. Soedin., 255 (1975). 2. A.A. Shamyrina, V. A. Peshkova, and N. I. Shergina, Khim. Prirodn. Soedin., 577 (1977). 3. T.J. Mabry, K. R. Markham, and M. B. Thomas, The Systematic Identification of Flavonoids, Springer, New York (1970). 4. I.P. Kovalev and E. V. Titov, Infrared Absorption(More)
The subs tance DN3, C21H20Olt , had mp 220-222°C, Rf 0.18 (15% acet ic acid), Vma x (ethanol} 352, 269, 252 nm. Acid hydro lys i s (5% sulfur ic acid, 3 h) gave the aglycone with mp 326-328°C, Rf 0.46 (60% acet ic acid), Vma x {ethanol) : 355, 268, 252 nm. On the ba s i s of the r e s u l t s of p h y s i c . c h e m i c a l and spec t r a l invest igat(More)
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