145611-62-7 Carbamic acid, (3-methyl-1-(((6-(2,3,5,6,8,9,11,12-octahydro-7H-1,4,10,13,7-benzotetraoxaazacyclopentadecin-7-yl)-6-oxohexyl)amino)carbonyl)butyl)-, 1,1-dimethyl ester, (S)- N-(N'-tert-Butoxycarbonylleucyl-6-aminohexanoyl)benzoaza-15-crown-5