0 B2R0.1 C[Sn+2]C DA-34792 [0,0,0,0,0,0|3,0,0]=3 1 B4R1.1 C1OCS1 DA-30243 [0,1,0,1,0,0|1,1,0]=4 2 B4R1.2 C1C(O1)N DA-25745 [0,1,0,1,0,0|2,0,0]=4