Synthesis of novel C-2 substituted pyrimidine nucleoside analogs
作者:Martin Dunkel、P. Dan Cook、Oscar L. Acevedo
DOI:10.1002/jhet.5570300540
日期:1993.10
A series of 2-(2-oxoalkylidene)-4(1H)-pyrimidinone nucleoside analogs were synthesized by the addition of the lithium enolates of methylketones to 2,5′- and 2,2′-anhydrouridines and to 2,5′-anhydrothymidines. Alternatively, 2-thiouridine was alkylated with bromomethyl ketones to yield 2-(2-oxoalkyl)thio-4(1H)-pyrimidinone ribofuranosides in good yields. These intermediates were subsequently transformed