CCn1cc(C(=O)OCC(=O)c2cc(C)n(-c3cccc(C(F)(F)F)c3)c2C)c(=O)c2ccc(C)nc21
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?