Cc1oc2c(cc(NS(=O)(=O)c3ccc4c5c(cccc35)C(=O)N4)c3ccccc32)c1C(=O)OC(C)C
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?