ERROR opening https://cactus.nci.nih.gov/chemical/structure/C1CN%28CCC1CN2CC3%3DCC%3DCC%3DC3C2%3DO%29CC%28%3DO%29C4%3DCC%3DC%28C%3DC4%29F/file?format=sdf&get3d=True  -- C1CN%28CCC1CN2CC3%3DCC%3DCC%3DC3C2%3DO%29CC%28%3DO%29C4%3DCC%3DC%28C%3DC4%29F could not be loaded.