Nc1ncc2n1C[C@@H](Cc1cccc3c1OCO3)CC2 mol19254 0_1 [NH3+]c1ncc2n1C[C@@H](Cc1cccc3c1OCO3)CC2 mol19254 1_1 Nc1[nH+]cc2n1C[C@@H](Cc1cccc3c1OCO3)CC2 mol19254 1_2