Fc1ccc([C@@H]2CCNC[C@H]2COc2ccc3c(c2)OCO3)cc1.O=C(O)/C=C\C(=O)O
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?