c1ccc(C(/C(=N/c2ccc(Cc3ccc(/N=C(\C(c4ccccc4)c4ccccc4)N4CC4)cc3)cc2)N2CC2)c2ccccc2)cc1
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?