a mature peptidoglycan (meso-diaminopimelate containing)

SMILES:

CC(C(=O)NC(C(=O)[O-])CCC(=O)NC(CCCC([N+])C(=O)[O-])C(NC(C)C([O-])=O)=O)NC(=O)C(C)OC4(C(OC3(OC(CO)C(OC2(C(NC(=O)C)C(OC(C)C(=O)NC(C)C(=O)NC(C(=O)[O-])CCC(=O)NC(CCCC([N+])C(=O)[O-])C(NC(C)C([O-])=O)=O)C(OC1(OC(CO)C(O[R2])C(O)C(NC(=O)C)1))C(CO)O2))C(O)C(NC(=O)C)3))C(CO)OC(C[R1])C(NC(=O)C)4)