125084-70-0Relevant academic research and scientific papers
The shortest synthetic route to puromycin analogues using a modified robins approach
Krishnakumar, Kollappillil S.,Goudedranche, Sebastien,Bouchu, Denis,Strazewski, Peter
scheme or table, p. 2253 - 2256 (2011/05/30)
We are reporting on the utility of commercial vinyl isocyanate for a practical synthetic route from adenosine to N6-bis-demethylpuromycin in seven steps and 65% overall yield. A clean one-pot conversion of 3′-bromo-2′-carbamoyl derivative 8 to
Synthesis of a xylo-puromycin analogue
Michel, Beno?t Y.,Krishnakumar, Kollappillil S.,Strazewski, Peter
scheme or table, p. 2461 - 2464 (2009/05/07)
N6-Bis-demethylated xylo-puromycin analogue 2 was synthesized over six steps in 56% yield from adenosine 3, involving a Mattocks bromoacetylation, a regio- and stereoselective ribo-epoxide ring opening with sodium azide and an efficient Staudin
An efficient synthesis of 3′-amino-3′-deoxyguanosine from guanosine
Zhang, Lei,Cui, Zhiyong,Zhang, Biliang
, p. 703 - 710 (2007/10/03)
3′-Amino-3′-deoxyguanosine was synthesized from guanosine in eight steps and 58% overall yield. The 2′,3′-diol of 5′-O-[(tert-butyl)diphenylsilyl]-2-N-[(dimethylamino) methylidene]guanosine was reacted with α-acetoxyisobutyryl bromide and treated with 0.5N NH3 in MeOH to yield 9-[2′-O-acetyl-3′-bromo-5′-O-[(tertbutyl) diphenylsilyl]-3′-deoxy-β-D-xylofuranosyl]-2-N- [(dimethylamino)methylidene]guanine, which was reacted with benzyl isocyanate, NaH, and then 3.0N NaOH, and finally with Pd/C (10%) and HCO2NH4 in EtOH/AcOH to afford 3′-amino-3′-deoxyguanosine.
Syntheses of puromycin from adenosine and 7-deazapuromycin from tubercidin, and biological comparisons of the 7-aza/deaza pair
Robins, Morris J.,Miles, Robert W.,Samano, Mirna C.,Kaspar, Roger L.
, p. 8204 - 8210 (2007/10/03)
Protection (05′) of 2′,3′-anhydroadenosine with tert-butyldiphenylsilyl chloride and epoxide opening with dimethylboron bromide gave the 3′-bromo-3′-deoxy xylo isomer which was treated with benzylisocyanate to give the 2′-O-(N-benzylcarbamoyl) derivative. Ring closure gave the oxazolidinone, and successive deprotection concluded an efficient route to 3′-amino-3′-deoxyadenosine. Analogous treatment ofthe antibiotic tubercidin {7-deazaadenosine; 4-amino-7-(β-D-ribofuranosyl)-pyrrolo[2,3-d]pyrimidine} gave 3′-amino-3′-deoxytubercidin. Trifluoroacetylation of the 3′-amino function, elaboration of the heterocyclic amino group into a (1,2,4-triazol-4-yl) ring with N,N′-bis-[(dimethylamino)methylene]hydrazine, and nucleophilic aromatic substitution with dimethylamine gave puromycin aminonucleoside [9-(3-amino-3-deoxy-β-D-ribofuranosyl)-6-(dimethylamino)purine] and its 7-deaza analogue. Aminoacylation [BOC-(4-methoxy-L-phenylalanine)] and deprotection gave puromycin and 7-deazapuromycin. Most reactions gave high yields at or below ambient temperature. Equivalent inhibition of protein biosynthesis in a rabbit reticulocyte system and parallel growth inhibition of several bacteria were observed with the 7-aza/deaza pair. Replacement of N7 in the purine ring of puromycin by "CH" has no apparent effect on biological activity.
Nucleotides: Part LIX: Synthesis, characterization, and biological activities of new potential antiviral agents: (2'-5')Adenylate trimer analogs containing 3'-deoxy-3'(hexadecanoylamino)adenosine at the 2'-terminus
Schirmeister-Tichy, Helga,Iacono, Kathryn T.,Muto, Nicholas F.,Homan, Joseph W.,Suhadolnik, Robert J.,Pfleiderer, Wolfgang
, p. 597 - 613 (2007/10/03)
Based upon 3'-amino-3'-deoxyadenosine (15), its protected 3'- hexadecanoylamino derivative 22 was chosen as starting material for the synthesis of a series of new modified 2'-5'-adenylate trimers 33-36 as potential antiviral agents. All (2'-5')A trimer analogs 33-36 inhibit HIV-1 replication as measured by the inhibition of syncytia formation and inhibition of HIV-1 reverse transcriptase activity. Compound 34 inhibits HIV- 1 reverse transcription by 100% and subsequently inhibits expression of HIV- 1 p24. However, compound 35 acts differently, since it does not inhibit HIV- 1 reverse transcription, HIV-1 integrase, or HIV-1 p24 expression. Therefore, 35 appears to exert its inhibitory effect at a later stage of HIV-1 replication, i.e., the budding process.
Uracil and Adenine Nucleosides Having a 2',3'-Bromovinyl Structure: Highly Versatile Synthons for the Synthesis of 2'-C- and 3'-C-Branched 2',3'-Unsaturated Derivatives
Haraguchi, Kazuhiro,Itoh, Yoshiharu,Tanaka, Hiromichi,Akita, Mitsuhiro,Miyasaka, Tadashi
, p. 1371 - 1390 (2007/10/02)
Preparation of 2'- and 3'-bromo derivatives of 2',3'-unsaturated uracil and adenine nucleosides has been carried out starting from the corresponding β-hydroxyselenides by way of bromination and successive selenoxide elimination.These compounds have been shown to serve as versatile synthons for the preparation of anti-HIV candidates, 2'-C- and 3'-C-branched 2',3'-unsaturated nucleosides, through palladium-catalyzed cross-coupling and halogen-lithium exchange reactions. Key Words: β-hydroxyselenide; bromovinyl structure; branched-sugar nucleoside; anti-HIV agent; 2',3'-unsaturated nucleoside.
