344776-71-2Relevant academic research and scientific papers
Convenient substitution of hydroxypyridines with trifluoroacetaldehyde ethyl hemiacetal
Gong,Kato,Kimoto
, p. 25 - 28 (2001)
Thermal substitution of 4-hydroxypyridine 1 with trifluoroacetaldehyde ethyl hemiacetal (TFAE) leads to a moderate yield of 3-(1-hydroxy-2,2,2-trifluoroethyl)-4-hydroxypyridine 7 in the presence of a catalytic amount of anhydrous potassium carbonate. Under similar conditions, several α-trifluoromethyl hydroxypyridinemethanols 8-15 are easily prepared from 2- or 3-hydroxypyridines 2-6.
SULFONYL CONTAINING COMPOUNDS AS CYSTEINE PROTEASE INHIBITORS
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Page/Page column 74-75, (2010/11/24)
The present invention is directed to compounds that are inhibitors of cysteine proteases, in particular, cathepsins B, K, L, F, and S and are therefore useful in treating diseases mediated by these proteases. The present invention is directed to pharmaceutical compositions comprising these compounds and processes for preparing them.
