CO/N=C(/C)CCC(=O)OC[C@@H]1O[C@H](c2ccccc2)C=C[C@@H]1Oc1ccc(OC)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?