C/C=C(/C)C(=O)O[C@@H]1c2c(C)coc2C[C@H]2CC[C@H](O)[C@H](C)[C@@]12C
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?