2-[2-[2-(dioctylamino)-2-oxoethoxy]ethoxy]acetamide

7,16-diphenyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane

2-[2-[2-oxo-2-(N-phenylanilino)ethoxy]ethoxy]-N,N-diphenylacetamide

ethyl 11-[[3-[2-[2-[(11-ethoxy-11-oxoundecyl)-methylamino]-2-oxoethoxy]ethoxy]-2-oxopropyl]amino]undecanoate