ERROR opening https://cactus.nci.nih.gov/chemical/structure/CN1CCC%28CC1%29OC%28%3DO%29C%28O%29%28c2ccccc2%29c3ccccc3/file?format=sdf&get3d=True  -- CN1CCC%28CC1%29OC%28%3DO%29C%28O%29%28c2ccccc2%29c3ccccc3 could not be loaded.