Cc1ccc(C2=NO[C@@H]3[C@@H]4C[C@@H]([C@H]5C(=O)N(c6sc7c(c6C#N)CCCC7)C(=O)[C@@H]45)[C@H]23)cc1
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?