CC[C@@H](C)[C@H](NC(=O)Cc1c(C)c2c(cc(C)c3c(C)coc32)oc1=O)C(=O)O
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?