Patent ID: 7250429

Claim:
An aminomethyl-substituted thiazolobenzimidazole compound represented by the following formula (I) or a salt thereof (wherein signs in the formula mean as follows; R 1 : an oxygen-containing saturated hetero ring- which may be substituted, Alk1: a lower alkylene, m: 0 or 1, Alk2: a lower alkylene which may be substituted with oxo group, n: 0 or 1, X: a bond, O, S or NR 5 , R 3 : a lower alkyl or a saturated hetero ring-, and R 2 , R 4 and R 5 : the same or different from one another and each represents H or lower alkyl, with the proviso that R 3 does not represent a lower alkyl when X is a bond and n is 1).