CCOC(=O)C[C@H](C(=O)OCC)n1cnc(C)c1C    mol25591    0_1
CCOC(=O)[C@@H](CC(=[OH+])OCC)n1cnc(C)c1C    mol25591    1_1
CCOC(=O)C[C@H](C(=O)OCC)n1c[nH+]c(C)c1C    mol25591    1_2
CCOC(=O)C[C@H](C(=[OH+])OCC)n1cnc(C)c1C    mol25591    1_3