From nucleosides, their acyclo- and anhydro-analogues to chiral complementary lariat ethers
摘要:
Novel 2',5'-(5), 2',3'-(13), 3',5'-anhydro-2',3'-seco-uridine(9) and syn-18-hydroxymethyl-2-[uracil-1-yl(20) and 2-adenin-9-yl(21)]-18-crown-6-ether, have been efficiently prepared from the respective, properly protected and activated 2',3'-seco-nucleosides.