CCOc1ccc(NCc2cccn2-c2nnc(N3CCC(C(=O)NCCc4ccc(OC)c(OC)c4)CC3)s2)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?