573713-67-4Relevant articles and documents
SPIRO COMPOUNDS AND PHARMACEUTICAL USE THEREOF
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Page/Page column 43, (2009/07/17)
The Spiro compound represented by the following general formula [Ia], its pharmaceutically acceptable salt or a solvate thereof
A practical route for the preparation of substituted 6-oxo-2-hexenoate derivatives
Freiría, Marta,Whitehead, Andrew J.,Motherwell, William B.
, p. 805 - 808 (2007/10/03)
Reaction of 2-hydroxy-3-butenoates with a series of carbonyl derivatives gives substituted 6-oxo-2-hexenoates in good yields under mild acid conditions via Claisen rearrangement of the allyl alkenyl ether intermediate.