Cc1c(C)c(C)c(-n2c(=O)n(C)c(=O)n2-n2c(=O)n(C)c(=O)n2-c2c(C)c(C)c(C)c(C)c2C)c(C)c1C
Drug-like molecules usually have no more than 5 Hydrogen bond donor. How many hydrogen bond donor does the molecule have?