Cc1cc(C)c(C2=NO[C@@H]3[C@H]2C(=O)C=C2N(Cc4ccccc4)CCO[C@@]23O)c(C)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?