COc1ccc(NC(=O)CNC(=O)c2nn(-c3ccc(OC)c(OC)c3)c(=O)c3ccccc23)c(OC)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?