CCOC(=O)c1ccc(N2NC(=O)/C(=C/c3ccc(OC(=O)c4ccco4)c(OC)c3)C2=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?