Reckitt Benckiser Group Plc is in advanced talks to buy Mead Johnson Nutrition Co in a $16.7 billion deal that would take the British consumer goods maker into the baby formula market and boost its business outside of Europe. Best known for its Lysol cleaners, Durex condoms, Nurofen tablets and Scholl footcare products, Reckitt said late on Wednesday that it was discussing a $90 per share cash offer, a 29.5 percent premium to Mead's closing price. Shares of Mead Johnson, long rumored to be a takeover target for Danone or Nestle , jumped 22 percent in after-market trading.