157800-18-5

1,7,13-Trioxa-4,10,16-triazacyclooctadecane-2,5,8,11,14,17-hexone,4,6,10,12,16,18-hexamethyl-3,9,15-tris[(1S)-1-methylpropyl]-,(3S,6R,9S,12R,15S,18R)-