ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC%28C%28O%29c1ccc%28O%29cc1%29N2CCC%28Cc3ccccc3%29CC2/file?format=sdf&get3d=True  -- CC%28C%28O%29c1ccc%28O%29cc1%29N2CCC%28Cc3ccccc3%29CC2 could not be loaded.