76005-97-5Relevant academic research and scientific papers
Thrombin inhibitors
-
, (2008/06/13)
Compounds of the invention are useful in inhibiting thrombin and associated thrombotic occlusions having the following structure: or a pharmaceutically acceptable salt thereof, wherein b is NY or O; c is CY2or N; d is CY3or N; e is CY4or N; f is CY5or N; g is CY6or N; Y4, Y5, and Y6are independently hydrogen, C1-4alkyl, or halogen; Y1and Y2are independently hydrogen, C1-4alkyl, C3-7cycloalkyl, halogen, NH2, OH or C1-4alkoxy, and Y3is hydrogen, C1-4alkyl, C3-7cycloalkyl, halogen, —CN, NH2, OH or C1-4alkoxy; A is and W, W1, R1, R3, R4, R5, X and Z are defined in the specification.
Pyrazolopyridines. Part 5. Preparation and Reactions of Pyrazolopyridines
Chapman, David,Hurst, Jim
, p. 2398 - 2404 (2007/10/02)
A series of pyrazolopyridines has been prepared by nitrosation of 3-acetamido-4-methylpyridines and subsequent rearrangement and cyclisation of the N-acetyl-N-nitroso-compounds produced.The reactions of the pyrazolopyridines have been investigated. 1- and 2-Acetyl and 1- and 2-benzyl compounds were obtained and their structures elucidated spectroscopically.The ring system readily undergoes electrophilic substitution in the 3-position. 7-Chloropyrazolopyridine has been shown to be more susceptible to nucleophilic substitution than the isomeric 5-chloro-compound.
