A synthesis of bredinin (Mizoribine®) from an acyclic precursor
摘要:
Bredinin (4-carbamoyl-1-beta-D-ribofuranosylimidazolium-5-olate, 1) was synthesised by the formation of a malonamate from 2,3-isopropylidene-D-ribofuranosylamine and ethyl malonyl chloride, followed by a sequence involving amination, via reduction of an oxime, heterocycle formation and then deprotection. (C) 2011 Elsevier Ltd. All rights reserved.
A synthesis of bredinin (Mizoribine®) from an acyclic precursor
摘要:
Bredinin (4-carbamoyl-1-beta-D-ribofuranosylimidazolium-5-olate, 1) was synthesised by the formation of a malonamate from 2,3-isopropylidene-D-ribofuranosylamine and ethyl malonyl chloride, followed by a sequence involving amination, via reduction of an oxime, heterocycle formation and then deprotection. (C) 2011 Elsevier Ltd. All rights reserved.
Mizoribine(R) (4-carbamoyl-1-beta-D-ribofuranosylimidazolium-5-olate)(13 beta) and its 4-cyano analogue (20) were synthesized by formation of a malonamide from 2,3-isopropylidene-D-ribosylamine and a malonic acid derivative followed by amination, cyclisation and deprotection steps.