C[C@@H]1CCCCCCCCC(=O)OCCN[C@H](C)CCCCCCCCC(=O)OCCN[C@H](C)CCCCCCCCC(=O)OCCN1
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?