c1ccc(SCc2cn(C[C@H]3CC[C@@H]([C@@H]4CC[C@H](Cn5cc(CSc6ccccc6)nn5)O4)O3)nn2)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?