1,6-Dioxa-2-azaspiro[4.7]dodeca-2,8,10-triene-3-carboxamide, N-[3-[4-(2-aminoethyl)-2,6-dibromophenoxy]propyl]-9,11-dibromo-4-hydroxy-10-methoxy-, (4S,8E,10Z)- AIDS-213336 AIDS213336 Psammaplysin A