CCOC(=O)c1[nH]c(COC(=O)C2CC(=O)N(Cc3ccccc3)C2)c(C(=O)OCC)c1C
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?