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. 2014 Mar 24;19(3):3669-80.
doi: 10.3390/molecules19033669.

Additional new minor cucurbitane glycosides from Siraitia grosvenorii

Indra Prakash  1 , Venkata Sai Prakash Chaturvedula  2
Affiliations

Additional new minor cucurbitane glycosides from Siraitia grosvenorii

Indra Prakash et al. Molecules. .

Abstract

Continuous phytochemical studies of the crude extract of Luo Han Guo (Siraitia grosvenorii) furnished three additional new cucurbitane triterpene glycosides, namely 11-deoxymogroside V, 11-deoxyisomogroside V, and 11-deoxymogroside VI. The structures of all the isolated compounds were characterized on the basis of extensive NMR and mass spectral data as well as hydrolysis studies. The complete ¹H- and ¹³C-NMR spectral assignments of the three unknown compounds are reported for the first time based on COSY, TOCSY, HSQC, and HMBC spectroscopic data.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Structures of 11-deoxymogroside V (1), 11-deoxyisomogroside V (2), 11-deoxymogroside VI (3), mogroside V (4), isomogroside V (5), and mogroside VI (6).
Figure 2
Figure 2
Key COSY and HMBC correlations of 11-deoxymogroside V (1).
Figure 3
Figure 3
Key COSY and HMBC correlations of 11-deoxyisomogroside V (2).
Figure 4
Figure 4
Key COSY and HMBC correlations of 11-deoxymogroside VI (3).
See this image and copyright information in PMC

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