Triterpenoids of an ethereal extract of the leaves and female catkins ofBetula divaricata
โ Scribed by G. V. Malinovskaya; N. D. Pokhilo; V. A. Denisenko; N. I. Uvarova
- Book ID
- 104815035
- Publisher
- Springer
- Year
- 1985
- Tongue
- English
- Weight
- 105 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0009-3130
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Three new cyclolanostane triterpenoids, 1 -3, were isolated from the EtOH extract of the stems of Kadsura heteroclita. Their structures and configurations were determined by extensive 1D-and 2D-NMR spectroscopy, high-resolution mass spectrometry (HR-MS), and circular dichroism (CD) spectroscopy. The
An aqueous fraction of the ethanol extract of the leaves (AFL) of Cissampelos sympodialis Eichl. (Menispermaceae) was shown to relax the spontaneous tone of guinea-pig tracheal smooth muscle rings with an IC 50 of 20.5 g/mL. The AFL inhibited cyclic nucleotide phosphodiesterase activity in isolated