CCOC(=O)C(=O)NCc1ccc(/C=C2\C(=O)C(C(=O)OC)=C(C)N2c2cc(C)cc(C)c2)o1
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?