Other

Icn Pharmaceuticals, Inc.

Aronex Pharmaceuticals, Inc.

Arthur F Lewis

Ganapathi R Revankar

Natarajan Raju

Robert F Rando

Kandasamy Ramasamy

Roland K Robins, Deceased

Vjera Pejanovic

Susan M Fennewald

Ramesh Bharadwaj

Rodrigo V Devivar

Birendra K Bhattacharya

A series of guanine analogs and physiological salts thereof, which are useful as virus inhibitors and as antiviral agents in the treatment of viral disease, having the basic structures of: ##STR1## wherein B is H, CH.sub.3 or NH.sub.2 ; C is NH.sub.2 or SCH.sub.3 ; D is N or CH; E is O, S or Se; and G is selected from a group consisting of alkanes, alkenes, ethers, esters, hydrocarbons, amines and heterocyclic compounds, is herein disclosed. In I and III, A is O, S or Se while in II, A is NH.sub.2, OH, NHOH, OCH.sub.3 or SCH.sub.3. In I and II, F is 0, S or Se, while in III, F is F is 0, S, Se or NH. These compounds may be formulated with a physiological carrier, and used either alone or in combination with, for example, acyclovir or ganciclovir or another therapeutic agent, for the treatment of conditions resulting from viral infections.

Antiviral guanine analogs

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.

Procedures for obtaining ribo-C-nucleosides

A series of guanine analogs having the basic structures of ##STR1## and physiological salts thereof. Also disclosed are a variety of the use of the compounds as a composition with a physiological carrier or in combination therapy with acyclovir, HBG and ganciclovir in the treatment of viral disease.

Growing community of inventors

The Woodlands, TX, United States of America

Arthur F Lewis