90927-40-5Relevant articles and documents
Acylated and non-acylated flavonol monoglycosides from the Indian minor spice Nagkesar (Mammea longifolia).
Jagan Mohan Rao, Lingamallu,Yada, Hiroshi,Ono, Hiroshi,Yoshida, Mitsuru
, p. 3143 - 3146 (2002)
A methanol extract of nagkesar (buds of Mammea longifolia), which showed strong radical scavenging activity, yielded 13 compounds by separations using column chromatography and HPLC. Structure elucidation of these compounds was achieved by (1)H and (13)C NMR, including DQF-COSY, TOCSY, DEPT, HMQC, HSQC, and HMBC. They include two new compounds, quercetin 3-O-(2' ',4' 'di-E-p-coumaroyl)-alpha-L-rhamno-pyranoside and quercetin 3-O-(3' ',4' '-di-E-p-coumaroyl)-alpha-L-rhamnopyranoside, along with known compounds kaempferol, quercetin, the isopropylidenedioxy derivative of shikimic acid, kaempferol 3-O-(2' ',4' '-di-E-p-coumaroyl)-alpha-L-rhamnopyranoside, kaempferol 3-O-(3' ',4' '-di-E-p-coumaroyl)-alpha-L-rhamnopyranoside, kaempferol 3-O-alpha-L-rhamnopyranoside, quercetin 3-O-alpha-L-rhamnopyranoside, shikimic acid, kaempferol 3-O-beta-D-glucopyranoside, quercetin 3-O-beta-D-glucopyranoside, and beta-sitosterol 3-O-beta-D-glucopyranoside.
Enantiospecific synthesis of (-)-5-epi-shikimic acid and a new route to (-)-shikimic acid
Jiang, Shende,Mekki, Boualem,Singh, Gurdial,Wightman, Richard H.
, p. 5505 - 5508 (2007/10/02)
(-)-Shikimic acid (1) and (-)-5-epi-shikimic acid (2) have each been prepared enantiospecifically and with high diastereoselectivity from D-ribose.