0 B10R1.25 CCC1=C(O)N=C(C)N=C1 1899 [0,0,0,0,0,1|2,0,1]=4 1 B10R1.25 CCC1=C(O)N=C(N)N=C1 1884 [0,0,0,0,0,1|2,0,1]=4