Procedures for obtaining ribo-C-nucleosides

Details Procedures for obtaining ribo-C-nucleosides Procedures for obtaining ribo-C-nucleosides

1996-02-20

1999-05-25

Kunz, Gary L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 292, C07H 100, C07H 706

Patent

active

059070366

ABSTRACT:
Novel procedures for obtaining ribo-C-nucleosides, including especially 2-.beta.-D-ribofuranosylthiazole-4-carboxylamide (tiazofirin) and 2-.beta.-D-ribofuranosylselenazole-4-carboxylamide (sylenazofurin) and synthesis intermediates thereof. The novel procedures involve introducing a cyano group at the 1' position of a ribose, directly or indirectly converting the cyano group to HN.dbd.C--OR.sub.1 or thicarboxylamide wherein R.sub.1 is a lower alkyl, forming the group which substituted for the cyano group into a heterocyclic ring containing an ester, and converting the ester into an amide.

REFERENCES:
patent: 4451648 (1984-05-01), Parsons et al.

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