Advancis Pharmaceutical Corp. of Germantown, MD expects to start the new year with a new name and finish it with a new product ready to market. The company has filed an application with the U.S. Food and Drug Administration for approval of its once-daily antibiotic treatment for strep throat in adults and adolescents. The company’s search for a new name, now down to five finalists. Advancis hired ‘‘a couple of branding companies” to help find name that ‘‘will not step on anybody’s toes,” he said.