Human Heat-Shock Protein 90 (Hsp90) In Complex With {4-[3-(2,4-Dihydroxy-5-Isopropyl-Phenyl)-5-Thioxo- 1,5-Dihydro-[1,2,4]Triazol-4-Yl]-Benzyl}-Carbamic Acid Ethyl Ester {Zk 2819}