C=C1C(=O)O[C@H]2[C@@H](O)/C(C)=C/C(=O)/C=C(/C)C[C@H](OC(=O)/C(C)=C/C)[C@@H]12
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?