ERROR opening https://cactus.nci.nih.gov/chemical/structure/c1cccc3c1CC%28N%28c2ccccc2%29CCCN%28CC%29CC%29C3/file?format=sdf&get3d=True  -- c1cccc3c1CC%28N%28c2ccccc2%29CCCN%28CC%29CC%29C3 could not be loaded.