Aldol elaboration of 4,5,6,7-tetrahydroisoxazolo[4,3-<i>c</i>]pyridin-4-ones, masked precursors to acylpyridones
作者:Raymond C F Jones、Abdul K Choudhury、James N Iley、Mark E Light、Georgia Loizou、Terence A Pillainayagam
DOI:10.3762/bjoc.8.33
日期:——
A core 4,5,6,7-tetrahydroisoxazolo[4,3-c]pyridine-4-one scaffold is elaborated at C-3(Me) by base-mediated aldol condensation to give new 3-alkenyl-4,5,6,7-tetrahydroisoxazolo[4,3-c]pyridine-4-ones, which are masked forms related to the acylpyridone natural products.
Dehydrogenation–halogenation of a 4,5,6,7-tetrahydroisoxazolo[4,3-c]pyridin-4-one to provide a scaffold for acylpyridones
作者:Raymond C. F. Jones、Abdul K. Choudhury、Claire E. Dawson、Christopher Lumley、Vickie McKee
DOI:10.3998/ark.5550190.0013.702
日期:——
The dehydrogenation and halogenation of 3-methyl-4,5,6,7-tetrahydroisoxazolo[4,3-c]pyridin-4one has been investigated to provide a suitable 7-halo-4,5-dihydroisoxazolo[4,3-c]pyridine-4-one to act as a masked scaffold for the acylpyridone natural products and analogues.
A core isoxazolo[4,3-c]pyridin-4-onescaffold is prepared and elaborated at C-3(Me) and C-7 as a masked building block for 3-acylpyridin-2-ones related to the acylpyridone natural products.