20-CARBOXY-23-HYDROXY-11-OXO-30-NOROLEAN-12-EN-3-YL 2-O-.BETA.-D-GLUCOPYRANURONOSYL-.ALPHA.-D-GLUCOPYRANOSIDURONIC ACID, (3.BETA.,4.BETA.,20.BETA.)-
20-carboxy-23-hydroxy-11-oxo-30-norolean-12-en-3-yl 2-o-.beta.-d-glucopyranuronosyl-.alpha.-d-glucopyranosiduronic acid, (3.beta.,4.beta.,20.beta.)-