122188-45-8

(2S,8E,16S,17S,18R,19R,20R,21S,22R,23S,24E)-5,6,17,19-tetrahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-8-[(octahydro-2H-pyrido[1,2-a]pyrazin-2-ylamino)methylidene]-1,9,11-trioxo-1,2,8,9-tetrahydro-2,7-(epoxypentadeca[1,11,13]trienoimino)naphtho[2,1-