title: 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.
authors.affiliation: The Coca-Cola Company, Organic Chemistry Department, Global Research and Development, One Coca-Cola Plaza, Atlanta, GA 30313, USA. iprakash@coca-cola.com.
authors.forename: Indra
authors.initials: I
authors.lastname: Prakash
authors.affiliation: Natural Ingredient Development, Blue California, 30111 Tomas, Rancho Santa Margarita, CA 92688, USA. saipc@bluecal-ingredients.com.
authors.forename: Venkata Sai Prakash
authors.initials: VS
authors.lastname: Chaturvedula
mesh_terms: D019662:Cucurbitaceae / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry*; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry; D014315:Triterpenes / Q000737:chemistry*
chemical_list: D006027:Glycosides; D010936:Plant Extracts; D014315:Triterpenes; C514277:cucurbitane