ERROR opening https://cactus.nci.nih.gov/chemical/structure/c2ccccc2C%28C%28%3DO%29NC%28C%29%28C%29C%29CN%28CC3%29CCN3c1ccccc1OC/file?format=sdf&get3d=True  -- c2ccccc2C%28C%28%3DO%29NC%28C%29%28C%29C%29CN%28CC3%29CCN3c1ccccc1OC could not be loaded.