2013
DOI: 10.1002/hlca.201200203
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Synthesis of PhospholipidRibavirin Conjugates

Abstract: New conjugates of antiviral nucleoside Ribavirin (=1‐(β‐D‐ribofuranosyl)‐1H‐1,2,4‐triazole‐3‐carboxamide; 1) with 1,2‐ and 1,3‐diacyl glycerophosphates have been synthesized by the phosphoramidite method. A combination of 2′,3′‐phenylboronate protecting group for the sugar moiety of the ribonucleoside 1 and 2‐cyanoethyl protection for the phosphate fragment ensured the preparation of the desired compounds with reasonable yields via a small number of synthetic steps.

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Cited by 5 publications
(7 citation statements)
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“…In 2019, Tolan et al synthesized a class of 1,2,4-triazolyl thioglycosides incorporating a substituted pyrimidine-dione ring system (42)(43)(44)(45), and the antiviral activity of the synthesized compounds against avian influenza H5 N1 virus was investigated ( Figure 13). Of these derivatives, compound 43 has shown significant activity against the strain of the H5 N1 influenza virus, followed by compounds 45 and 42.…”
Section: Miscellaneous Nucleosidesmentioning
confidence: 99%
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“…In 2019, Tolan et al synthesized a class of 1,2,4-triazolyl thioglycosides incorporating a substituted pyrimidine-dione ring system (42)(43)(44)(45), and the antiviral activity of the synthesized compounds against avian influenza H5 N1 virus was investigated ( Figure 13). Of these derivatives, compound 43 has shown significant activity against the strain of the H5 N1 influenza virus, followed by compounds 45 and 42.…”
Section: Miscellaneous Nucleosidesmentioning
confidence: 99%
“…[43] New additional ribavirin applications are currently under investigation, four scientific studies are registered to explore its efficacy in influenza, two on paramyxovirus, three on arbovirus, two on Coxsackie virus, three on hepatitis B, three on Hantavirus, along with one on coronavirus. [44] Among the issues associated with the usage of ribavirin is its accumulation within erythrocytes leading to severe hemolytic anemia, [45] which motivates researchers to find therapeutic preparations that are safer and less systemically toxic. In this particular regard, ribavirin analogs, levovirin, and viramidine hold some promise.…”
Section: Introductionmentioning
confidence: 99%
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“…Использование нуклеозидных и нуклеотидных лекарственных препаратов в виде конъюгатов с липидами привлекает внимание исследователей в качестве способа снижения токсичности и повышения терапевтической эффективности этих соединений [4][5][6]. Фосфолипидный «якорь» способствует проникновению биологически активного нуклеозида через клеточную мембрану.…”
unclassified
“…При прохождении таких конъюгатов к органу-мишени через желудочно-кишечный тракт возможно изменение их устойчивости вследствие разрушительного действия на фосфолипидный «якорь» липолитических ферментов. Это подтверждается данными о том, что синтезированные химическим способом 1,2-липонуклеотидные конъюгаты (например, на основе рибавирина и флударабина) являются хорошими субстратами панкреатической ФЛА 2 [5,6]. Лизолипидное производное конъюгата, образующееся под действием пищеварительной фосфолипазы А 2 , 1) обладает негативными лизирующими свойствами по отношению к биологической мембране, 2) теряет способность внедрения и, наконец 3), теряет способность поступления в кровяное русло и проявлять противовирусное действие, или проникать в опухолевую клетку и ингибировать их пролиферацию.…”
unclassified