CCCCOc1ccc(CC(NC(=O)OC(C)(C)C)C(=O)NC(C)C(=O)NC(Cc2ccccc2)C(=O)NCC(N)=O)cc1
The donor in a hydrogen bond is usually a strongly electronegative atom such as N, O, or F that is covalently bonded to a hydrogen bond. How many hydrogen bond donors does the molecule have?