ACETAMIDE,N,N',N'-(5,15,25-TRIHYDROXY-2,12,- 22-TRIMETHYL-4,10,14,20,24,30-HEXAOXO-1,11,- 21-TRIOXA-5,15,25-TRIAZACYCLOTRIACONTANE-9,19,- 29-TRIYL)TRIS-,(2R,9R,12R,19R,22R,29R)-