A new minor polyoxygenated triterpene named glutinolic acid (1) and two new aeginetic acid quinovosides (2, 3) were isolated from the roots of Rehmannia glutinosa LIBOSCH. (Scrophulariaceae) cultivated in Gunwi-gun, Korea. The structures of these compounds were established as 3α,19α,20β,24,30-pentahydroxyurs-12-en-28-oic acid (1, glutinolic acid), aeginetic acid 5-O-β-D-quinovoside (2) and aeginetoyl ajugol 5″-O-β-D-quinovoside (3) on the basis of chemical and spectroscopic evidence.
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| http://dx.doi.org/10.1248/cpb.59.742 | DOI Listing |
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Article Synopsis
- - The study investigates the chemical composition changes of Rehmanniae Radix when processed using different methods, specifically focusing on braising with mild fire.
- - Ultra-high performance liquid chromatography coupled with mass spectrometry (UHPLC-LTQ-Orbitrap MS) identified and compared 66 chemical constituents of various processed forms of Rehmanniae Radix.
- - Principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) revealed significant differences in chemical composition based on the processing methods, identifying 32 key differential components, including 9 unique to the braised forms.
[Chemical constituents from aerial part of Rehmannia glutinosa].
Zhongguo Zhong Yao Za Zhi
August 2015
To investigate the chemical compounds from aerial part of Rehmannia glutinosa, six compounds were isolated and deter- mined by extensive spectroscopic analysis as(+)-(7S, 8S, 8'S)-9-O-[β-D-glucopyranoyl] asarininone(1), 2α,3β,19α,23-tetrahydroxy-olean-12-en-28-oic acid(2),7,3'-dihydroxyl-5'-methoxyisoflavone (3), aeginetic acid (4), corchorifattty acid B (5), pinellic acid (6). Among them, compound 1 was a new natural product. Compounds 2, 3 and 5 were obtained from the Rehmannia genus for the first time.
View Article and Find Full Text PDFA new polyoxygenated triterpene and two new aeginetic acid quinovosides from the roots of Rehmannia glutinosa.
Chem Pharm Bull (Tokyo)
September 2011
Natural Products Research Institute and College of Pharmacy, Seoul National University.
A new minor polyoxygenated triterpene named glutinolic acid (1) and two new aeginetic acid quinovosides (2, 3) were isolated from the roots of Rehmannia glutinosa LIBOSCH. (Scrophulariaceae) cultivated in Gunwi-gun, Korea. The structures of these compounds were established as 3α,19α,20β,24,30-pentahydroxyurs-12-en-28-oic acid (1, glutinolic acid), aeginetic acid 5-O-β-D-quinovoside (2) and aeginetoyl ajugol 5″-O-β-D-quinovoside (3) on the basis of chemical and spectroscopic evidence.
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