CC(C)NC(=O)CN1C[C@@H](C(=O)Nc2cncc3ccccc23)c2cc(Cl)ccc2C1=O
CNC(=O)C(C(C)C)N1C[C@@H](C(=O)Nc2cncc3ccccc23)c2cc(Cl)ccc2C1=O
CNC(=O)CN1C[C@@H](C(=O)Nc2c(C(F)F)ncc3ccccc23)c2cc(Cl)ccc2C1=O
A few exemplars for potentially addressing metabolism: replace glycine with other amino acids. Replace NMe with bulkier amine groups Protection ortho quinoline