In Fowler v. Weiss, 15 Conn. App. 690, 546 A.2d 321, cert. denied, 209 Conn. 814, 550 A.2d 1082 (1988), the parties' agreement called for a future "superseding" contract to be signed on a specified date. Id., 693. In that case, this court found that it "was essential to the creation of a contract that a formal written agreement should be executed. This formal written agreement was a condition precedent to the completion of a contract, and until such formal written agreement was executed the parties were still in the stage of negotiations for a contract and either party could withdraw from the negotiations." Id., 694.