ERROR opening https://cactus.nci.nih.gov/chemical/structure/C%28Cc1c%5BnH%5Dc2ccccc12%29C3CCNCC3/file?format=sdf&get3d=True  -- C%28Cc1c%5BnH%5Dc2ccccc12%29C3CCNCC3 could not be loaded.