The disclosures herein relate to novel compounds of formula wherein Ar1 and R1 are as defined herein, and their use in treating, preventing, ameliorating, controlling or reducing cerebrovascular or vascular disorders associated with CGRP receptor function.本文之揭示內容係關於下式之新穎化合物其中Ar1與R1係如本文中所定義的、與其等於治療、預防、改善、控制或減輕與CGRP受體功能聯結的腦血管或血管疾患的用途。