ERROR opening https://cactus.nci.nih.gov/chemical/structure/%5BLi%2B%5D.O%3DC%28%5BO-%5D%29%5CC1%3DC%5CC%28%3DO%29NC%28%3DO%29N1/file?format=sdf&get3d=True  -- %5BLi%2B%5D.O%3DC%28%5BO-%5D%29%5CC1%3DC%5CC%28%3DO%29NC%28%3DO%29N1 could not be loaded.