CC(C)(C)OC(=O)CC(NC(=O)OC(C)(C)C)C(=O)NC(CCCCNC(=O)OCc1ccccc1)C(=O)NC(C)(C)C(=O)NCCC(=O)OCc1ccccc1
Drug-like molecules usually have no more than 5 Hydrogen bond donor. How many hydrogen bond donor does the molecule have?