CN(Cc2cnc1NC([NH3+])N=C(N)c1n2)C3=CC[C@@H](C(=O)N[C@@H](CCC([O-])=O)C([O-])=O)C=C3 MTX_170_1TDR -3.807 216.432 33 457.471 13 7 2 9 394.858