The present invention relates to an optical pure quinazoline compound,especially to a compound of the general formula (I), a process of preparing it, a pharmaceutical composition containing the same and the use thereof, wherein R1 and Y are defined as in the specification. It also involves a compound of the general formula (VII), which is an intermediate in the synthesis of the compound of the general formula (I), wherein Ar, R2, R3, m, n, T and Carbon atom with * are defined as in the specification.本發明涉及純光學活性喹唑啉類化合物,特別是通式(I)的化合物,其中R1、Y如說明書所定義;其製備方法,含有它們的醫藥組合物以及其用途;還涉及通式(VII)化合物,它們是製備通式(I)化合物的中間體,其中Ar、R2、R3、m、n、T、帶*碳原子如說明書所定義。
