Pentanamide,N-[1-[(3,3a,12,13,13a,14,15,16,18,18a-decahydro-8-methoxy-13,18-dioxo-5,9-metheno-9H-dipyrrolo[3,2-b:1',2'-e][1,5,8]oxadiazacyclopentadecin-1(2H)-yl)carbonyl]-2-methylbutyl]-3-methyl-2-(methylamino)-,[3aS-[1[1R*(2R*,3R*),2R*],3aR*,10Z,13aR*,18