Fused 1,2,4-thiadiazine and fused 1,4-thiazine derivatives, their
申请人:Novo Nordisk A/S
公开号:US05889002A1
公开(公告)日:1999-03-30
1,2,4-Thiadiazine and 1,4-thiazine derivatives represented by the formula ##STR1## wherein A, B, D, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are defined in the description, compositions thereof and methods for preparing the compounds are described. The compounds are useful in the treatment of diseases of the central nervous system, the cardiovascular system, the pulmonary system, the gastrointestinal system and the endocrinologic system.
A series of novel 2,4‐disubstituted 7‐methyl‐1,1,3‐trioxo‐2,4‐dihydro‐pyrazolo[4,5‐e] [1,2,4]thiadiazines (PTDs) was synthesized, structurally confirmed by spectral analysis, and evaluated for their anti‐HIV activities by inhibition of HIV‐induced cytopathogenicity in MT‐4 cell culture. The results showed that some compounds exhibited inhibitory activity specifically against HIV‐2 replication. The
A new ring system of 7-methylpyrazolo[4,5-e][1,2,4]thiadiazine (5) was synthesized. Starting from 5 a series of novel mono N-4-substituted derivatives (6) were prepared regioselectively and evaluated as potent HIV-1 non-nucleoside reverse transcriptase inhibitors (NNRTIs).