Formula: C21H31NO9 | Mol. Weight: 441.50 g/mol
IUPAC: (1R,4R,5R,8R,9S,19R)-9-ethyl-4,5,9-trihydroxy-8-methyl-4-propan-2-yl-2,7,11-trioxa-16-azatricyclo[11.5.1.016,19]nonadec-13-ene-3,6,10-trione
CCC1(C(OC(=O)C(C(C(=O)OC2CCN3C2C(=CC3)COC1=O)(C(C)C)O)O)C)O