11-[(9-Oxo-9,10-dihydro-acridine-4-carbonyl)-amino]-undecanoic acid 5-acetylamino-6-benzyloxy-4-{1-[1-(1,3-dicarbamoyl-propylcarbamoyl)-ethylcarbamoyl]-ethoxy}-3-hydroxy-tetrahydro-pyran-2-ylmethyl ester AIDS-137643 AIDS137643 NSC642601