84245-11-4Relevant articles and documents
Substituted 9-(1 or 3-monoacyloxy or 1,3-diacyloxy-2-propoxymethyl) purines as antiviral agent
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, (2008/06/13)
Compounds useful as antiviral agents are defined by the following formula: STR1 and the pharmaceutically acceptable acid addition salts thereof wherein R1 is hydrogen or --C(O)R7 wherein R7 is hydrogen, alkyl of one to nineteen carbon atoms, hydroxyalkyl of one to eight carbon atoms, alkoxyalkyl of two to nine carbon atoms, alkenyl of two to nineteen carbon atoms, phenyl, 1-adamantyl or 2-carboxyethyl and the pharmaceutically acceptable alkali metal salts thereof; R2 is --C(O)R7 wherein R7 is as defined above; R3 is hydrogen, halo, thio, lower alkylthio of one to six carbon atoms, azido, NR9 R10 wherein R9 and R10 are independently hydrogen or lower alkyl of one to six carbon atoms or --NHC(O)R8 wherein R8 is hydrogen, alkyl of one to nineteen carbon atoms or 1-adamantyl; and (a) R6 is hydrogen, halo, lower alkoxy of one to six carbon atoms, azido, thio, lower alkylthio of one to six carbon atoms, --NR9 R10 wherein R9 and R10 are as defined above or --NHC(O)R8 wherein R8 is as defined above and R4 together with R5 is a bond; or (b) R5 together with R6 is a keto group and R4 is hydrogen.
Process for the preparation of acylals
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, (2008/06/13)
Compounds of the formula STR1 can advantageously be prepared by reacting compounds the formula II STR2 in which the substituents R1 -R4 have the meanings given, with the anhydride of the formula III STR3 in the presence of dimethyl sulfoxide and the acid corresponding to the anhydride of the formula III.
Process for preparing guanine derivatives
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, (2008/06/13)
1-Monophosphate esters, 1,3-bisphosphate esters and cyclic phosphate esters of 9-(1,3-dihydroxy-2-propoxymethyl)guanine are useful as antiviral agents.