86357-13-3Relevant academic research and scientific papers
A facile synthesis of 9-(1,3-dihydroxy-2-propoxymethyl)guanine (ganciclovir) from guanosine
Boryski, Jerzy,Golankiewicz, Bozenna
, p. 625 - 628 (2007/10/03)
The potent and selective antiviral drug ganciclovir (6) has been synthesized in two steps via transpurination of fully acetylated guanosine (1) in the presence of 1,3-diacetoxy-2-(acetoxymethoxy)propane (2), followed by deacetylation in aqueous ammonia. The transpurination reaction also provides valuable side products, tetra-O-acetyl-β-D-ribofuranose (5) and the 7-regioisomer of triacetylganciclovir (4); the latter product can be converted to the desired 9-isomer in a thermal 7 ? 9 isomerization.
Syntheses of acyclic guanine nucleosides
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, (2008/06/13)
A method is provided for the synthesis of synthesis of acyclic purine nucleosides, particularly 9-(2-hydroxyethoxymethyl)-guanine (acyclovir) and 9-[(1,3-dihydroxy-2-propoxy)methyl]guanine ("DHPG") where the N2,N9 -diprotected guanine is reacted with CH3 C(O)OCH2 O(CH2)2)OC(O)CH3 or diacetoxypropane, respectively, in the presence of a mixture of an acid and acetic anhydride, or in the presence of an acid, where the acid can be phosphoric acid or polyphosphoric acid.
Anti-viral guanine compounds
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, (2008/06/13)
9-(1,3-Dihydroxy-2-propoxymethyl)guanine and 9-(2,3-dihydroxy-1-propoxymethyl)guanine have been found to have potent anti-viral activity against herpes viruses. These compounds, their acyl derivatives, their phosphate derivatives and their pharmaceutically acceptable salts, pharmaceutical formulations containing these compounds, the treatment of DNA viral or herpes viral infections with these compounds, method of preparing these compounds, and novel intermediates useful in their preparation are all disclosed. The compounds may be prepared by reaction of the appropriate acetoxymethyl ether with diacetylguanine, followed by deprotection. The acetoxymethyl ethers may be obtained by reaction of glycerol formal with acetic anhydride in the presence of a catalyst.
Effect of Acyclic Pyrimidines Related to 9-guanine on Herpesviruses
Beauchamp, Lilia M.,Serling, Barbara L.,Kelsey, John E.,Biron, Karen K.,Collins, Peter,et al.
, p. 144 - 149 (2007/10/02)
A series of pyrimidines related to the potent antiherpetic agent 9-guanine (1, BW B759U), all containing the same acyclic chain, have been synthesized.Some of the compounds were derivatives of the naturally occuring bases, cytosine, uracil, and thymine; others included compounds in which the 5-position of the cytosine and uracil moieties were substituted by bromo, iodo, fluoro, methyl, and amino groups.Other variations of the cytosine derivatives were the 5-aza, 2-mercapto, 4-methylamino, 4-dimethylamino, and isocytosine congeners.A 4-aminopyrimidine adduct was also made.Antiviral testing showed that 1-cytosine (18, BW A1117U) was equivalent to the guanine analogue in the potency against human cytomegalovirus and Epstein Barr virus.Other compounds in the series were largely inactive in antiviral screening against the herpesviruses.
Acyclic Analogs of Nucleosides. Synthesis of Hydroxyalkylbenzimidazoles and -Benzotriazoles
Yavorskii, A. E.,Stetsenko, A. V.,Zavgorodnii, S. G.,Florent'ev, V. L.
, p. 163 - 167 (2007/10/02)
Condensation of trimethylsilyl derivatives of benzimidazole and benzotriazole with alkylating agents in the presence of trimethylsilyl trifluoromethanesulfonate or SnCl4, or direct alkylation of the sodium salts of benzimidazole and benzotriazole, gives 1-(2,3-dihydroxypropyl)-, 1-(3-hydroxy-2-oxabutyl)-, 1-(3-hydroxymethyl-4-hydroxy-2-oxabutyl)-, and 1-(1,5-dihydroxy-3-oxapent-2-yl)benzimidazole and -benzotriazole.
Synthesis and antiherpetic activity of (S)-, (R)- and (±)-9-[(2,3-dihydroxy-1-propoxy)methyl]guanine, linear isomers of 2'-nor-2'-deoxyguanosine
Ashton,Canning,Reynolds,Tolman,Karkas,Liou,Davies,DeWitt,Perry,Field
, p. 926 - 933 (2007/10/02)
Racemic 9-[2,3-dihydroxy-1-propoxy)methyl]guanine [(±)-iNDG], a new analogue of acyclovir (ACV) and a structural analogue of 2'-nor-2'-deoxyguanosine (2'NDG), was synthesized and found to inhibit the replication of herpes simplex virus types 1 (HSV-1) and 2 (HSV-2). Subsequently, its optical isomers, (R)- and (S)-iNDG, were prepared from chiral intermediates. The chloromethyl ethers of 1,2-di-O-benzyl-D- and -L-glycerol were made and reacted with tris(trimethylsilyl)guanine to give the 9-alkylated guanines, which were deprotected by catalytic hydrogenolysis. Against HSV-1 and HSV-2 in cell culture, (S)-iNDG was approximately 10- to 25-fold more active than the R enantiomer and had an ED50 comparable to those for ACV and 2'NDG. The inferior activity of (R)-iNDG paralleled the poor inhibition of viral DNA polymerase by its phosphorylation products. In mice infected intraperitoneally or orofacially with HSV-1 or intravaginally with HSV-2, (S)-9-[(2,3-dihydroxy-1-propoxy)methyl]guanine [(S)-iNDG] was less efficacious than 2'NDG but comparable to or more active than ACV.
