Cathepsin L In Complex With (3S,14E)-19-Chloro-N-(1-Cyanocyclopropyl)-5-Oxo-17-Oxa-4-Azatricyclo[16.2.2.06,11]Docosa-1(21),6,8,10,14,18(22),19-Heptaene-3-Carboxamide