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Oleanane saponins in "kancolla", a sweet variety of Chenopodium quinoa
Authors:Dini Irene  Tenore Gian Carlo  Dini Antonio
Institution:Dipartimento di Chimica delle Sostanze Naturali, Università di Napoli "Federico II", Via D. Montesano, 49, 80131 Naples, Italy.
Abstract:Seven triterpenoid saponins were isolated from the seeds of "kancolla", a sweet variety of Chenopodium quinoa. Their structures were phytolaccagenic acid 3-O-alpha-L-arabinopyranosyl-(1' '-->3')-beta-D-glucuronopyranosyl]-28-O-beta-D-glucopyranoside, oleanolic acid 3-O-beta-D-glucopyranosyl-(1'-->3')-alpha-L-arabinopyranosyl]-28-O-beta-D-glucopyranoside, hederagenin 3-O-beta-D-glucopyranosyl-(1'-->3')-alpha-L-arabinopyranosyl]-28-O-beta-D-glucopyranoside, phytolaccagenic acid 3-O-beta-D-glucopyranosyl-(1'-->3')-alpha-L-arabinopyranosyl]-28-O-beta-D-glucopyranoside, oleanolic acid 3-O-beta-D-glucuronopyranosyl]-28-O-beta-D-glucopyranoside, oleanolic acid 3-O-alpha-L-arabinopyranosyl-(1'-->3')-beta-D-glucuronopyranosyl]-28-O-beta-D-glucopyranoside, and the new compound serjanic acid 3-O-beta-D-glucopyranosyl-(1'-->3')-alpha-L-arabinopyranosyl]-28-O-beta-D-glucopyranoside (1). The structure of 1 was characterized on the basis of spectroscopic and chemical evidence.
Keywords:
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