| 摘要 |
<p>THIAZOLO- AND THIAZINO-BENZIMIDAZOLES This invention relates to processes for preparing compounds of formula (I) or salts thereof wherein -B-B1- represents a chain of formula -CR5=CR5- (Ib) or -(CHR5)n-CR6= (Ic); R represents an optionally substituted aryl or heteroaryl radical, R1, R2, R3 and R4 independently represent hydrogen, or a defined substituent or any adjacent pair of R1, R2, R3 and R4 together with the carbon atoms to which they are attached complete a five or six membered saturated or unsaturated carbocyclic or heterocyclic ring, said ring being optionally substituted by defined substituent and said heterocyclic ring having at least one heteroatom selected from oxygen, nitrogen and sulphur; R5 and R6 independently represent hydrogen or lower alkyl; n and m independently represent 0 or 1, the term "heteroaryl" means a monovalent aromatic heterocyclic group in which the ring heteroatom is/are selected from oxygen, nitrogen and sulphur which have anti-ulcer and/or anti-secretory activity. Novel compositions comprising compounds of formula I are also disclosed.</p> |
