Cn1c(=O)n2n(c1=O)[C@H]1[C@H](O)[C@H]3O[C@@H]3/C(=N/OCc3ccccc3)[C@@H]1CC2
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?