ERROR opening https://cactus.nci.nih.gov/chemical/structure/C%5BC%40H%5D1COc2c3n1cc%28c%28%3DO%29c3cc%28c2N4CCN%28CC4%29C%29F%29C%28%3DO%29O/file?format=sdf&get3d=True -- C%5BC%40H%5D1COc2c3n1cc%28c%28%3DO%29c3cc%28c2N4CCN%28CC4%29C%29F%29C%28%3DO%29O could not be loaded.