| abstract |
(57) Abstract Disclosed are 1,2,4-thiadiazine and 1,4-thiazine derivatives represented by the following formulas, compositions thereof, and methods for producing the compounds. However, A, B, D, R 1, R 2, R 3 and R 4 are as defined in the specification. The compounds are useful for treating diseases of the central nervous system, cardiovascular system, pulmonary system, digestive system, and endocrine system. |