invasion, and angiogenesis. Small molecules that modulate the MAPK pathway have been
demonstrated to impart cytotoxicity in cancer cells. Herein, the synthesis of a new isoxazolyl-
urea derivative (QR-4) has been described and its effect on the growth of pancreatic cancer
cells has been investigated. QR-4 reduced the cell viability in a panel of pancreatic cancer
cells with minimal effect on normal hepatocytes. QR-4 induced the cleavage of PARP and …