AIDS-146256 AIDS146256 NSC672463 Threoninamide, N-[(phenylmethoxy)carbonyl]phenylalanyl-S-(acetylmethylamino)cysteinylphenylalanyl-1-formyltryptophyl-N~6~-[(phenylmethoxy)carbonyl]lysyl-O-(phenylmethyl)threonyl-S-(acetylmethylamino)cysteinyl-O-(phenylmethyl)-