Valeant Pharmaceuticals International Inc. agreed to sell about $2.1 billion in assets in two deals, an important first step in the struggling drugmaker’s endeavor to get cash and begin easing its debt burden, Bloomberg News reported yesterday. L’Oreal SA, the Paris-based cosmetic giant, will pay Valeant $1.3 billion for three skin-care brands, according to a statement Tuesday. Valeant will also sell its Dendreon Pharmaceuticals unit to closely held Chinese conglomerate Sanpower Group Co. for about $820 million. The agreements mark Valeant’s biggest divestitures in almost three years, and a start to its efforts to pay down about $30 billion in debt. It’s a significant break for Chief Executive Officer Joe Papa, who took over in May to help turn around a company that had been embroiled in scandals about high prices and accounting that led to legal and regulatory investigations -- along with declines in its share price.