ERROR opening https://cactus.nci.nih.gov/chemical/structure/COc1ccccc1CNCCc1c2CCOc2c%28Br%29c2CCOc12/file?format=sdf&get3d=True  -- COc1ccccc1CNCCc1c2CCOc2c%28Br%29c2CCOc12 could not be loaded.