C=CCN1C[C@H](C)N([C@H](c2ccc(C(=O)N(CC)CCO)cc2)c2cccc(OC)c2)C[C@H]1C
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?