ERROR opening https://cactus.nci.nih.gov/chemical/structure/c1c%28ccc%28COCCOC%28C%29C%29c1%29OC%5BC%40%40H%5D%28O%29CNC%28C%29C/file?format=sdf&get3d=True -- c1c%28ccc%28COCCOC%28C%29C%29c1%29OC%5BC%40%40H%5D%28O%29CNC%28C%29C could not be loaded.