Cn1nccc1C(=O)N1CC(C(=O)Nc2cncc3ccccc23)c2cc(Cl)ccc2C1=O
Cn1nccc1C(=O)N1CC2(CCN(c3cncc4ccccc34)C2=O)c2cc(Cl)ccc2C1=O
Cn1nccc1C(=O)N1Cc2ccc(Cl)cc2C2(CCN(c3cncc4ccccc34)C2=O)C1
Cc1cnn(C)c1C(=O)N1Cc2ccc(Cl)cc2C2(CCN(c3cncc4ccccc34)C2=O)C1
Cc1cc(C(=O)N2Cc3ccc(Cl)cc3C3(CCN(c4cncc5ccccc45)C3=O)C2)n(C)n1
Cn1nccc1CN1CC(C(=O)Nc2cncc3ccccc23)c2cc(Cl)ccc2C1=O
Cn1nccc1CN1CC2(CCN(c3cncc4ccccc34)C2=O)c2cc(Cl)ccc2C1=O
Design based round MAT-POS-4223bc15-40 which shows low dropoff enzyme--> A549 cells. Spiro and lactam variants.