An improved synthesis of 5-thio-d-ribose from d-ribono-1,4-lactone

Autor: Imane Stasik, Daniel Beaupère, Gilles Demailly, Jérôme Lalot
Rok vydání: 2002
Předmět:
Zdroj: Carbohydrate Research. 337:1411-1416
ISSN: 0008-6215
Popis: 5-Thio-D-ribopyranose was synthesized from D-ribono-1,4-lactone (1) by two approaches: (i) 5-bromo-5-deoxy-D-ribono-1,4-lactone (2) was successively transformed into 5-bromo-5-deoxy, 5-S-acetyl-5-thio or 5-thiocyanato-D-ribofuranose derivatives; appropriate treatment then lead to 5-thio-D-ribopyranose (7) in 46-48% overall yield and; (ii) 2 was transformed into the 5-S-acetyl-5-thio-D-ribono-1,4-lactone derivative (11). Reduction and deprotection of 11 afforded 5-thio-D-ribopyranose (7) in 57% overall yield.
Databáze: OpenAIRE