Design, Synthesis, and Evaluation of Anti-HBV Activity of Hybrid Molecules of Entecavir and Adefovir: Exomethylene Acycloguanine Nucleosides and Their Monophosphate Derivatives
摘要:
Exomethylene acycloguanine nucleosides 4, 6 and its monophosphate derivatives 5, 7, and 8 have been synthesized. Mitsunobu-type coupling of 2-N-acetyl-6-O-diphenylcarbamoylguanine (11) with primary alcohols proceeded regioselectively to furnish the desired N-9-substituted products in moderate yield. Evaluation of 4-8 for anti-HBV activity in HepG2 cells revealed that the phosphonate derivative 8 was found to exhibit moderated activity (EC50 value of 0.29 mu M), but cytotoxicity (CC50 value of 39 mu M) against the host cells was also observed.
Design, Synthesis, and Evaluation of Anti-HBV Activity of Hybrid Molecules of Entecavir and Adefovir: Exomethylene Acycloguanine Nucleosides and Their Monophosphate Derivatives
摘要:
Exomethylene acycloguanine nucleosides 4, 6 and its monophosphate derivatives 5, 7, and 8 have been synthesized. Mitsunobu-type coupling of 2-N-acetyl-6-O-diphenylcarbamoylguanine (11) with primary alcohols proceeded regioselectively to furnish the desired N-9-substituted products in moderate yield. Evaluation of 4-8 for anti-HBV activity in HepG2 cells revealed that the phosphonate derivative 8 was found to exhibit moderated activity (EC50 value of 0.29 mu M), but cytotoxicity (CC50 value of 39 mu M) against the host cells was also observed.
[EN] GUANINE ANALOGS AS TELOMERASE SUBSTRATES AND TELOMERE LENGTH AFFECTORS<br/>[FR] ANALOGUES DE GUANINE EN TANT QUE SUBSTRATS DE TÉLOMÉRASE ET AFFECTEURS DE LA LONGUEUR DE TÉLOMÈRES
申请人:GERON CORP
公开号:WO2013095684A1
公开(公告)日:2013-06-27
This invention relates to compounds useful for inhibiting telomere elongation. More specifically, the invention provides nucleotide analogs that are incorporated into telomeres by telomerase thereby inhibiting elongation of telomeres. The compounds are useful in treating cancer and other cell proliferative diseases.
Guanine analogs as telomerase substrates and telomere length affectors
申请人:Geron Corporation
公开号:US10035814B2
公开(公告)日:2018-07-31
This invention relates to compounds useful for inhibiting telomere elongation. More specifically, the invention provides nucleotide analogs that are incorporated into telomeres by telomerase thereby inhibiting elongation of telomeres. The compounds are use in treating cancer and other cell proliferative diseases.
GUANINE ANALOGS AS TELOMERASE SUBSTRATES AND TELOMERE LENGTH AFFECTORS
申请人:Geron Corporation
公开号:US20150299232A1
公开(公告)日:2015-10-22
This invention relates to compounds useful for inhibiting telomere elongation. More specifically, the invention provides nucleotide analogs that are incorporated into telomeres by telomerase thereby inhibiting elongation of telomeres. The compounds are useful in treating cancer and other cell proliferative diseases.
Guanine Analogs as Telomerase Substrates and Telomere Length Affectors
申请人:Geron Corporation
公开号:US20170233419A1
公开(公告)日:2017-08-17
This invention relates to compounds useful for inhibiting telomere elongation. More specifically, the invention provides nucleotide analogs that are incorporated into telomeres by telomerase thereby inhibiting elongation of telomeres. The compounds are use in treating cancer and other cell proliferative diseases.