Cc1c(CCOC(=O)CC23CC4CC(CC(C)(C4)C2)C3)sc[n+]1Cc1ccc([N+](=O)[O-])cc1.[Br-]
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?