0 B20R2.153804 [2H]C([2H])(C1=C(F)C=CC=C1F)N2C=C(C(N)=O)N=N2 HY-A0042S [0,2,0,0,0,0|0,0,0]=2 1 B20R2.153804 [2H]C([2H])(C1=C(F)C=CC=C1F)N2C=C(C([15NH2])=O)N=N2 HY-A0042S1 [0,2,0,0,0,0|0,0,0]=2