ERROR opening https://cactus.nci.nih.gov/chemical/structure/Cc3cnc%28nc3%29CNCC%28F%29%28CC2%29CCN2C%28%3DO%29c%28cc1Cl%29ccc1F/file?format=sdf&get3d=True  -- Cc3cnc%28nc3%29CNCC%28F%29%28CC2%29CCN2C%28%3DO%29c%28cc1Cl%29ccc1F could not be loaded.