C=C(C)[C@H]1Cc2oc(cc2C(=O)OC)[C@H](C(=C)C)[C@H]2C=C(C(=O)O2)[C@H](O)[C@@H]1O
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?