0 B21R3.2674446 NC1=NC2=C(N=CN2[C@H]3C[C@H](O)[C@@H](CO)O3)C(=O)N1 CS-0046248 [2,0,0,0,0,0|0,0,2]=4 1 B23R3.45862194 NC1=NC2=C(N=C(Br)N2[C@@H]3O[C@H](CO)[C@@H](O)[C@H]3O)C(=O)N1 CS-W020382 [1,1,0,0,0,0|0,0,2]=4