30152-05-7Relevant articles and documents
CONDENSED TRICYCLIC COMPOUNDS AS PROTEIN KINASE INHIBITORS
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Page/Page column 69; 70, (2017/03/14)
There is provided compounds of formula I, (I) wherein R1, R2, R3 R4, R5, R6, R7a and R7b have meanings given in the description, and pharmaceutically-acceptable esters, amides, solvates or salts thereof, which compounds are useful in the treatment of diseases in which inhibition of a protein or lipid kinase (e.g. CDK8 and/or Haspin kinase) is desired and/or required, and particularly in the treatment of cancer or a proliferative disease.
Oxazoles in Diels-Alder Reactions. Transformation of The Adducts to Either Pyridines or Pyrroles
Johnsen, Bjoern A.,Undheim, Kjell
, p. 127 - 132 (2007/10/02)
The cycloadducts between acrylic acid or acrylonitrile and 5-ethoxyoxazoles are converted as formed to 3-hydroxypyridines.The Diels-Alder adducts from ethyl acrylate, or methyl or phenyl vinyl ketone can be isolated.In ethanolic HCl the adducts are transformed into 3-hydroxypyridines; in aqueous HCl the products are acylpyrrole analogues.A 4-substituent in the oxazole affects the reaction. 4-Methyl-5-ethoxyoxazole reacts much faster than its 5-ethylthio analogue.