4EEH:
reference: Fragment-based discovery of hydroxy-indazole-carboxamides as novel small molecule inhibitors of Hsp90., Buchstaller HP, Eggenweiler HM, Sirrenberg C, Gradler U, Musil D, Hoppe E, Zimmermann A, Schwartz H, Marz J, Bomke J, Wegener A, Wolf M, Bioorg Med Chem Lett. 2012 Jul 1;22(13):4396-403. Epub 2012 May 5. PMID: 22632933

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).