Optimization of a Potent Class of Arylamide Colony-Stimulating Factor-1 Receptor Inhibitors Leading to Anti-inflammatory Clinical Candidate 4-Cyano-N-2-(1-cyclohexen-1-yl)-4-[1-[(dimethylamino)acetyl-4-piperidinyl]phenyl]-1H-imidazole-2-carboxamide (JNJ-28312141)