N#CC12C(=O)N3C(=NC(c4ccccc4)NC3c3ccccc3)C1(C#N)C(c1ccccc1)NC1=C2CCC1
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?