O[C@@H]1[C@H](OC2c3ccccc3-c3ccccc32)[C@H](OCc2ccccc2)[C@@H]2OC[C@H]1O2
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?