Synthesis of the Isonicotinoylnicotinamide Scaffolds of the Naturally Occurring Isoniazid−NAD(P) Adducts
摘要:
The first syntheses of the 1-hydroxy-1-(pyridin-4-yl)-1,2-dihydro-3H-pyrrolo[3,4-c]pyridin-3-one heterocycle and the 3-aminocarbonyl-4-isonicotinoyl-1,4-dihydropyridine framework present in the isoniazid-NAD(P) adducts are described.
Alkaloid inspired spirocyclic oxindoles from 1,3-dipolar cycloaddition of pyridinium ylides
作者:Jonathan Day、Maliha Uroos、Richard A. Castledine、William Lewis、Ben McKeever-Abbas、James Dowden
DOI:10.1039/c3ob41415a
日期:——
Cycloaddition reactions between pyridiniumylides and 3-alkenyl oxindoles that proceed in high yield and with very good regio- and diastereoselectivity are reported. The resulting cycloadducts have the same stereochemistry of biologically active oxindole alkaloids, such as strychnofoline.