Boulder-based Corden Pharma Colorado announced Friday that it will cut 60 jobs, a move that will create a more sustainable business, according to the company’s president. Corden Pharma’s parent group, International Chemical Investors Group, bought Switzerland-based Roche Group’s Boulder site at the end of August. The loss of jobs are the result of a restructuring of the local workforce to match the new owner’s business model, according to John Tayer, a Corden Pharma Colorado spokesman.