12-((1R)-1-Hydroxyethyl)-6-((1R)-1-methylpropyl)(3S,6S,9R,12R,18R,19R)-18-hexyl-9-(hydroxymethyl)-2,19-dimethyl-3-(2-methylpropyl)-17-oxa-2,5,8,11,14-pentaazacyclononadecane-1,4,7,10,13,16-hexaone AIDS-180004 AIDS180004