Cc1ccc(N2C(=O)[C@@H]3C4c5ccccc5C=CN4[C@H](C(=O)c4ccco4)[C@@H]3C2=O)c(C)c1
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?