New nor-Cucurbitacin Glucosides fromWilbrandiaSpecies
نویسندگان
چکیده
منابع مشابه
Cucurbitacin glucosides: antioxidant and free-radical scavenging activities.
The cucurbitacins are of great interest because of the wide range of biological activities they exhibit in plants and animals. We studied the antioxidant properties of cucurbitacin B + E glucosides (cucurbitacin glucoside combination, CGC) and their direct free-radical scavenging properties, using ESR spectroscopy. Antioxidant activity was measured by the ability of the CGC to reduce preformed ...
متن کاملTwo new cucurbitacin glucosides, opercurins A and B, from the Brazilian folk medicine "Buchinha" (Luffa operculata).
The structures of two new cucurbitacin glucosides designated opercurins A (1) and B (2), isolated from the fruit of Luffa operculata, have been confirmed by extensive spectroscopic investigation.
متن کاملN-GLUCOSIDES: NEW PHASE-II METABOLITES OF TWO BARBITURATES
The new phase-II N-glucoside metabolites of butobarbitone and pentobarbitone are identified and quantified in human urine after single doses of these drugs. The identification and quantification of these metabolites were carried out by mass spectroscopy technique (accurate mass measurement and high voltage scanning). It was found that the butobarbitone N-glucoside comprised 26% of the dos...
متن کاملNew piericidin glucosides, glucopiericidins A and B.
The new piericidin group antibiotics, glucopiericidins A and B were isolated from the culture broth of Streptomyces pactum S48727 (FERM P-8117) as co-metabolite of piericidin A1. The structures of glucopiericidins A and B were determined as piericidin A1, 10-O-beta-D-glucoside and piericidin A1, 3'-O-D-glucoside on the basis of their spectral and chemical properties, respectively. Glucopiericid...
متن کاملNine new secoiridoid glucosides from Jasminum nudiflorum.
Phytochemical study of the leaves of Jasminum nudiflorum has led to the isolation of nine new secoiridoid glucosides, jasnudiflosides F-L (1-7), nudifloside D (8) and isooleoacteoside (9). The structures of these compounds were elucidated on the basis of chemical and spectroscopic evidence.
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ژورنال
عنوان ژورنال: Journal Of The Brazilian Chemical Society
سال: 1993
ISSN: 0103-5053
DOI: 10.5935/0103-5053.19930031