ERROR opening https://cactus.nci.nih.gov/chemical/structure/N%23Cc1cc%28cc%28F%29c1%29c1nc%28no1%29c1ncc%28F%29cc1/file?format=sdf&get3d=True  -- N%23Cc1cc%28cc%28F%29c1%29c1nc%28no1%29c1ncc%28F%29cc1 could not be loaded.