COCCCn1c(=O)/c(=C\c2ccccc2OC(C)C)s/c1=C(/C#N)C(=O)Nc1ccc(C(=O)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?