CCN(C(=O)C(C)OC(=O)C1C(C(=O)OC)=C(C)N=C(C)/C1=C(/O)OC)c1ccccc1
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?