ERROR opening https://cactus.nci.nih.gov/chemical/structure/CCOc3ccc2nc%28SCCN1CCOCC1%29%5BnH%5Dc2c3/file?format=sdf&get3d=True  -- CCOc3ccc2nc%28SCCN1CCOCC1%29%5BnH%5Dc2c3 could not be loaded.