Provided herein are heterocyclic derivative compounds and pharmaceutical compositions comprising said compounds that are useful for inhibiting plasma kallikrein. Furthermore, the subject compounds and compositions are useful for the treatment of diseases wherein the inhibition of plasma kallikrein inhibition has been implicated, such as angioedema and the like.
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(2018/03/26)
Pyrazolopyridines. Part 5. Preparation and Reactions of Pyrazolopyridines
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.
Chapman, David,Hurst, Jim
p. 2398 - 2404
(2007/10/02)
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