0 B12R1.652 CC1=C(O)C(CO)=C(CO)C=N1 DB00165 [0,0,0,0,0,0|0,0,0]=0 1 B12R1.652 CC1=NC=C(CO)C(C=O)=C1O DB00147 [0,0,0,0,0,0|0,0,2]=2