2-Azabicyclo[16.3.1]docosa-4,6,10,18,21-pentaene-3,20,22-trione, 9-[(aminocarbonyl)oxy]-19-[(2-chloroethyl)amino]-13-hydroxy-8,14-dimethoxy-4,10,12,16-tetramethyl-, (8R,9R,12R,13R,14R,16R)- 71952-92-6 AIDS-031209 AIDS031209 Geldanamycin Deriv NSC320877