(S)-2-[6-(2-{(2-{2-[[2-(2-Amino-6-oxo-1,6-dihydro-purin-9-yl)-ethanoyl]-(2-benzyloxycarbonylamino-ethyl)-amino]-ethanoylamino}-ethyl)-[2-(6-amino-purin-9-yl)-ethanoyl]-amino}-ethanoylamino)-hexanoylamino]-5-guanidino-pentanoic acid methyl ester AIDS-071519 AIDS071519 Z-PNA(G)-PNA(A)-NH(CH2)5COArgOMe