TRUMBULL, CONN. — New Boston Fund has leased 45,615 square feet of office space to Sun Products Corp. in Trumbull. Sun Products will occupy the entire building, which is located at 30 Trefoil Dr. within Trefoil Corporate Park, for a 15-year term. The building will undergo a complete renovation to accommodate Sun Products’ needs. The facility will be used by the company for the research, development, testing and quality control of its laundry detergent product line. Cushman & Wakefield’s (C&W) Tom O’Leary represented New Boston Fund in lease negotiations, while C&W’s Gregory Frisoli represented Sun Products Corp. New Boston Fund originally acquired the five-building Trefoil Corporate Park in 1998.