40886-58-6Relevant academic research and scientific papers
OXAZOLE TYROSINE KINASE INHIBITORS
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Page/Page column 77, (2009/01/20)
The invention provides a compound which is an amide of the formula (1), or a salt, solvate, N-oxide or tautomer thereof; wherein: a is 0 or 1; b is 0 or 1 : provided that the sum of a and b is 0 or 1; T is O or NH Ar1 is a monocyclic or bicyclic 5- to 10-membered aryl or heteroaryl group containing up to 4 heteroatoms selected from O, N and S, and being optionally substituted by one or more substituents R1; Ar2 Js a monocyclic or bicyclic 5- to 10-membered aryl or heteroaryl group containing up to 4 heteroatoms selected from O, N and S and being optionally substituted by one or more substituents R2; and R1 and R2are as defined in the claims. The compounds are inhibitors of kinases and in particular FLT3, FLT4 and Aurora kinases.
Flash Vacuum Pyrolysis of Stabilised Phosphorus Ylides. Part 2. Two-step Conversion of Acid Chlorides into Acetylenic Esters and Terminal Alkynes
Aitken, R. Alan,Horsburg, Caroline E. R.,McCreadie, J. Graeme,Seth, Shirley
, p. 1727 - 1732 (2007/10/02)
The known thermal extrusion of Ph3PO from α-acyl-α-ethoxycarbonyl ylides 1 to give acetylenic esters 2 can be accomplished in excellent yield by using flash vacuum (FVP) at 500 deg C.Upon rasing the furnace temperature to 750 deg C, this reaction is accompanied by unexpected loss of the ethoxycarbonyl group to give the terminal alkynes 7 in moderate yield.A mechanism is proposed for this reaction based on isotopic labelling studies.Ten new examples of ylides 1 have been prepared for the first time.
