Abstract
Parameritannin A-3, a new tetrameric A-type proanthocyanidin, along with the cinnamtannin B-2, pavetannin C-1 and cinnamtannin D-1 have been isolated from the bark of Parameria laevigata. Complete assignments by spectroscopic analysis established their structures as epicatechin - (2β→O→7, 4β→6) epicatechin - (2β→O→7, 4β→8) - epicatechin - (4β→8) - epicatechin, epicatechin(4β→8)-epicatechin-(2β→O→7, 4β→8)-epicatechin-(4β→8)-epicatechin, epicatechin(4β→6)-epicatechin-(2β→O→7, 4β→8)-epicatechin-(4β→8)-epicatechin, epicatechin-(2β→O→7, 4β→8)-epicatechin-(4β→8)-epicatechin-(4β→8)- catechin, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 1697-1708 |
| Number of pages | 12 |
| Journal | Heterocycles |
| Volume | 60 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1 Jul 2003 |