ENCY was forecasting $40 - $50 million in sales for 2008 so maybe thats how he gets the 4X number. The $100 million peak sales number in 2012 seems low if it includes the US market.
PFE is assuming ENCY’s liabilities, which total about $200M. This brings the effective deal price to about $350M after adjusting for ENCY’s cash on hand.