Quinolone antibacterial agents substituted at the 7-position with spiroamines. Synthesis and structure-activity relationships
摘要:
A series of fluoroquinolone antibacterials having the 7-position (10-position of pyridobenzoxazines) substituted with 2,7-diazaspiro[4.4]nonane (4b), 1,7-diazaspiro[4.4]nonane (5a), or 2,8-diazaspiro[5.5]undecane (6b) was prepared, and their biological activities were compared with piperazine and pyrrolidine substituted analogues. Most exhibited potent Gram-positive and Gram-negative activity, especially when side chain 4b was N-alkylated.
Disclosed are compounds of general formula (I),
wherein the groups A, R
1
, R
2
, R
a
and R
b
have the meanings given in the claims and specification, the tautomers, racemates, enantiomers, diastereomers and the mixtures thereof, and optionally the pharmacologically acceptable acid addition salts, solvates and hydrates thereof, and processes for preparing these thiazolyl-dihydro-quinazolines and the use thereof as pharmaceutical compositions.
Disclosed are compounds of general formula (I),
wherein the groups R
1
, R
2
, R
a
and R
b
have the meanings given in the claims and specification, the tautomers, racemates, enantiomers, diastereomers and the mixtures thereof, and optionally the pharmacologically acceptable acid addition salts, solvates and hydrates thereof, and processes for preparing these thiazolyl-dihydro-indazoles and the use thereof as pharmaceutical compositions.
The present invention provides compounds of formula M-L-M' (where M and M' are each independently a monomeric moiety of Formula (I) and L is a linker). The dimeric compounds have been found to be effective in promoting apoptosis in rapidly dividing cells. (I)
[EN] SUBSTITUTED PYRIDINE SPLEEN TYROSINE KINASE (Syk) INHIBITORS<br/>[FR] INHIBITEURS À PYRIDINE SUBSTITUÉE DE LA TYROSINE KINASE DE LA RATE (SYK)
申请人:MERCK SHARP & DOHME
公开号:WO2013192098A1
公开(公告)日:2013-12-27
The invention provides certain substituted pyridines of the Formula (I) or pharmaceutically acceptable salts thereof, wherein R1, R2, R3, R4, Rcy,Cy, and t are as defined herein. The invention also provides pharmaceutical compositions comprising such compounds, and methods of using the compounds for treating diseases or conditions mediated by Spleen Tyrosine Kinase (Syk) kinase.
METHODS OF REGIOSELECTIVE SYNTHESIS OF 2,4-DISUBSTITUTED PYRIMIDINES
申请人:Vertex Pharmaceuticals Incorporated
公开号:US20150099875A1
公开(公告)日:2015-04-09
The present invention relates to the novel regioselective syntheses of 2,4-disubstituted pyrimidines through sequential nucleophilic aromatic substitutions.