Tetraphase Pharmaceuticals, Inc. (Nasdaq: TTPH), a biopharmaceutical company focused on commercializing its novel tetracycline XERAVA™ to treat serious and life-threatening infections, today announced that it has entered into a definitive merger agreement with Melinta Therapeutics, Inc. (“Melinta”), pursuant to which Melinta would acquire Tetraphase, through a tender offer, for an aggregate of $39.0 million in cash, plus an additional $16.0 million in cash potentially payable under...