CCOC(=O)Oc1c(OC)cc(C(=O)O[C@H]2C[C@H]3CN4CCc5c([nH]c6cc(OC)ccc56)[C@@H]4C[C@H]3[C@@H](C(=O)OC)[C@@H]2OC)cc1OC
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?