78949-95-8 N-(7-Nitrobenz-2-oxa-1,3-diazole)-23,24-dinor-5-cholen-22-amine-3beta-ol Nbd-dca Pregn-5-en-3-ol, 20-methyl-21-((7-nitro-4-benzofurazanyl)amino)-, (3beta,20S)-