(4S)-N-{3-[4-(2-Amino-1-hydroxyethyl)-2,6-dibromophenoxy]propyl}-8,10-dibromo-4-hydroxy-9-methoxy-1,6-dioxa-2-azaspiro[4.6]undeca-2,7,9-triene-3-carboxamide AIDS-163022 AIDS163022