ERROR opening https://cactus.nci.nih.gov/chemical/structure/CN%28C%29C1CCN%28CCCOc2c%28F%29cc%28cc2F%29%3Ac2ccc%28cc2%29C%23N%29C1/file?format=sdf&get3d=True  -- CN%28C%29C1CCN%28CCCOc2c%28F%29cc%28cc2F%29%3Ac2ccc%28cc2%29C%23N%29C1 could not be loaded.