N[C@H](COc1cncc(-c2ccc3c(c2)/C(=C/c2ccc[nH]2)C(=O)N3)c1)Cc1c[nH]c2ccccc12
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?