CCOC(=O)Nc1ccc2c(c1)c(CCCCCCc1nc3ccccc3c3ccc(NC(=O)OCC)cc13)nc1ccccc12
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?