ERROR opening https://cactus.nci.nih.gov/chemical/structure/C1CCCCN1Cc2ccnc%28c2%29OC/C%3DC%5CCNC%28%3DO%29CS%28%3DO%29Cc3ccco3/file?format=sdf&get3d=True  -- C1CCCCN1Cc2ccnc%28c2%29OC/C%3DC%5CCNC%28%3DO%29CS%28%3DO%29Cc3ccco3 could not be loaded.