CC1(C)C2CCC1(C)[C@H](n1c(=O)n([C@@H]3CC4CCC3(C)C4(C)C)c(=O)n([C@@H]3CC4CCC3(C)C4(C)C)c1=O)C2
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?