133346-24-4Relevant articles and documents
TWO POLYPHENOL GLUCOSIDES AND TANNINS FROM ROSA CYMOSA
Yoshida, Takashi,Feng, Wei-Sheng,Okuda, Takuo
, p. 1033 - 1036 (2007/10/02)
Two new polyphenol glucosides, rocymosins A and B, were isolated from Rosa cymosa and characterized as 3-O-(6'-O-galloyl)-β-D-glucopyranosyl-4-hydroxyphenethyl alcohol and 2'-O-β-D-glucopyranosyl-4,4',β-trihydroxy-dihydrochalcone, respectively.Eight known tannins, casuarinin, rugosin D, stenophyllanins A and B, (+)-catechin, procyanidin B-3, procyanidin B-3 3-O-gallate and catechin-(4α->6)-catechin-(4α->6)-epicatechin, were also isolated. Key Word Index - Rosa cymosa; Rosaceae; root; tannin; procyanidin; 3-O-(6'-O-galloyl)-β-D-glucopyranosyl-4-hydroxyphenethyl alcohol; rocymosin A; β-hydroxydihydrochalcone glucoside; rocymosin B.
Syntheses of Flavonoids via the Isoxazoline Route
Almtorp, Gunvor T.,Bachmann, Torben L.,Torsell, Kurt B. G.
, p. 212 - 215 (2007/10/02)
Syntheses of naturally occuring 7-hydroxyflavonone, liquiritigenin and the corresponding chalcones (isoliquiritigenin) are described.