3-Sec-butyl-16-(3-chloro-2-hydroxypropyl)-6-isopropyl-5,8,9-trimethyldodecahydropyrrolo[1,2-d][1,4,7,10,13,16]oxapentaazacyclononadecine-1,4,7,10,14,17(11H,16H)-hexone AIDS-138093 AIDS138093 Chlorodestruxin NSC644211