Objective: To study the chemical constituents from Patrinia scabra Bunge.
Methods: Chemical constituents were isolated and purified by silica gel and Sephadex LH-20 column chromatography. Their structures were elucidated on the basis of spectroscopic analysis and chemical evidence.
Results: Seven compounds were isolated and purified. Their structures were identified as villosol (I), patriscabrol (II), protocatechuic acid (III), beta-daucosterol (IV), oleic acid (V), beta-sitosterol (VI), erucic acid (VII).
Conclusion: Compounds I, III, V, VII are isolated from this plant for the first time.
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Integr Environ Assess Manag
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Department of Medicine, Division of Occupational, Environmental and Climate Medicine, University of California, San Francisco; San Francisco, California, 94158United States.
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Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, J. D. Block, Sec.III, Salt Lake, Kolkata, West Bengal 700 098, India.
We investigated the temperature dependence of the intermolecular dynamics, including intermolecular vibrations and collective orientational relaxation, of one of the most typical deep eutectic solvents, reline, using femtosecond Raman-induced Kerr effect spectroscopy (fs-RIKES), subpicosecond optical Kerr effect spectroscopy (ps-OKES), and molecular dynamics (MD) simulations. According to fs-RIKES results, the temperature-dependent intermolecular vibrational band peak at ∼90 cm exhibited a redshift with increasing temperature. The density-of-state (DOS) spectrum of reline by MD simulations reproduced this fs-RIKES spectral feature.
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