2-Pyridinecarbaldehyde (1,2,5,6,9,10,13,14-octamethyl-17-(2-pyridinyl)-3,4,7,8,11,12,15,16-octaazaheptadeca-2,4,6,8,10,12,14,16-octaen-1-ylidene)hydrazone AIDS-149802 AIDS149802 NSC685290