Steroidal and Triterpenoidal Glucosides from Passiflora alata
نویسندگان
چکیده
Cinco glicosídeos foram isolados a partir das folhas de P. alata. Após extensivas análises espectroscópicas, as estruturas 1-5 foram identificadas como sendo o 3-O-β-D-glicopiranosilestigmasterol (1), o ácido 3-O-β-D-glicopiranosil-oleanólico (2), o ácido 3-O-β-D-glicopiranosil(1→3)-β-D-glicopiranosil-oleanólico (3), o ácido 3-O-β-Dglicopiranosil-(1→2)-β-D-glicopiranosiloleanólico (4) e 9,19-ciclolanost-24Z-en-3β,21,26-tri-hidróxi-3,26-di-O-gentiobiose (5). Adicionalmente, foram analisados, através de CCD, extratos hidroetanólicos de espécies de Passiflora existentes no sul do Brasil (P. actinia, P. caerulea, P. edulis var. flavicarpa, P. elegans, P. foetida, P. misera e P. tenuifila). A acumulação de saponinas foi verificada somente em Passiflora alata.
منابع مشابه
ECOLOGICAL-EVOLUTIONARY RELATIONSHIPS IN Passiflora alata FROM RIO GRANDE DO SUL, BRAZIL
The geographical distribution, ecological characteristics, flowering and fruiting times, and pollinating agents of Passiflora alata are considered and related to molecular genetic data gathered simultaneously. The first report on this species in Rio Grande do Sul was made in 1934, only in cultivated gardens. Approximately 20 years later, however, the species was already classified as efferata (...
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