COC(=O)c1ccc(C(NC(=O)OCc2ccccc2)/C(C)=C/[C@@H](C)C(=O)N[C@@H](CO)Cc2ccccc2)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?