ERROR opening https://cactus.nci.nih.gov/chemical/structure/OC43Oc2c%28c1ccccc1cc2%29CC4CN%28CC3C%29C/file?format=sdf&get3d=True  -- OC43Oc2c%28c1ccccc1cc2%29CC4CN%28CC3C%29C could not be loaded.