O=C(NC1CCCCC1)C(c1ccc2ncccc2c1)N(Cc1ccco1)C(=O)c1ccc2c(c1)OCCO2
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?