2R,3R-(+)-3-acetoxy-4′,5-dihydroxy-7-methoxyflavanone and 2R,3R-(+)-3-acetoxy-4′,5,7-trihydroxyflavanone: two new 3-acetylated dihydroflavonols from Aframomum pruinosum Gagnepain (Zingiberaceae)
作者:J. Foyere Ayafor、Joseph D. Connolly
DOI:10.1039/p19810002563
日期:——
Twonew3-acetylateddihydroflavonols, 2R,3R-(+)-3-acetoxy-4′,5-dihydroxy-7-methoxyflavanone (1) and 2R,3R-(+)-3-acetoxy-4′,5,7-trihydroxyflavanone (2), have been obtained from the seeds of Afromomum pruinosumGagnepain, together with the known 4′,7-di-O-methylaromadendrin (5). Nerolidol (8) was also present in substantial amounts. The 13C n.m.r. resonances of these compounds have been assigned.
两个新的3-乙酰化二氢黄酮醇2 R,3 R -(+)-3-乙酰氧基-4',5-二羟基-7-甲氧基黄酮(1)和2 R,3 R -(+)-3-乙酰氧基-4 ′,5,7-三羟基黄酮(2),是从Afromomum pruinosum Gagnepain的种子中获得的,以及已知的4′,7-di- O-甲基芳基马登德林(5)。Nerolidol(8)也大量存在。这些化合物的13 C nmr共振已经确定。
Tominaga, Yakugaku Zasshi/Journal of the Pharmaceutical Society of Japan, 1955, vol. 75, p. 1399,1402, 1403