137734-07-7 L-Phenylanine, N-(1-O-((3-beta,20-beta)-29-((2-methoxy-2-oxo-1-(phenylmethyl)ethyl)amino)-11,29-dioxoolean-12-en-3-yl)-2-O-(N-(2-methoxy-2-oxo-1-(phenylmethyl)ethyl)-beta-D-glucopyranuronamidosyl)-alpha-D-glucopyranuronoyl)-, methyl ester, (S-(R*,R*))-