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Additional new minor cucurbitane glycosides from Siraitia grosvenorii.

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.

SUBMITTER: Prakash I 

PROVIDER: S-EPMC6271671 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature

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Additional new minor cucurbitane glycosides from Siraitia grosvenorii.

Prakash Indra I   Chaturvedula Venkata Sai Prakash VS  

Molecules (Basel, Switzerland) 20140324 3

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 bas  ...[more]

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