The present invention relates to compounds useful as {HEAD ~ inhibitors} of {TAIL ~ ATR protein} kinase 
The present invention relates to compounds useful as { HEAD ~ inhibitors } of { TAIL ~ ATR protein } kinase
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH