ERROR opening https://cactus.nci.nih.gov/chemical/structure/1S/C23H25N5O2/c24-8-7-18-15-26-22-6-5-20%2813-21%2818%2922%2930-16-23%2829%2928-11-9-27%2810-12-28%2919-3-1-17%2814-25%292-4-19/h1-6%2C13%2C15%2C26H%2C7-12%2C16%2C24H2/file?format=sdf&get3d=True -- 1S/C23H25N5O2/c24-8-7-18-15-26-22-6-5-20%2813-21%2818%2922%2930-16-23%2829%2928-11-9-27%2810-12-28%2919-3-1-17%2814-25%292-4-19/h1-6%2C13%2C15%2C26H%2C7-12%2C16%2C24H2 could not be loaded.