Exhibit 10.13 SERIES F CONVERTIBLE PREFERRED STOCK AND WARRANT PURCHASE AGREEMENT ------------------------------------ This Agreement (the "Agreement"), dated as of June 28, 1996, is entered into by and among ASCENT PHARMACEUTICALS, INC., a Delaware...Series F Convertible Preferred Stock and Warrant Purchase Agreement • April 3rd, 1997 • Ascent Pediatrics Inc • Pharmaceutical preparations • Massachusetts
