Synthesis and biological evaluation of alpha-halogenated bisphosphonate and phosphonocarboxylate analogues of risedronate.

Alpha-halogenated analogues of the anti-resorptive bisphosphonate risedronate (5, Ris) and its phosphonocarboxylate cognate (7, 3-PEHPC) were synthesized and compared with 5, 7, and the corresponding desoxy analogues in bone mineral affinity and mevalonate pathway inhibition assays. The Ris (5e-h) a...

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Main Authors: Marma, MS, Xia, Z, Stewart, C, Coxon, F, Dunford, J, Baron, R, Kashemirov, B, Ebetino, F, Triffitt, J, Russell, R, McKenna, C
Format: Journal article
Language:English
Published: 2007
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author Marma, MS
Xia, Z
Stewart, C
Coxon, F
Dunford, J
Baron, R
Kashemirov, B
Ebetino, F
Triffitt, J
Russell, R
McKenna, C
author_facet Marma, MS
Xia, Z
Stewart, C
Coxon, F
Dunford, J
Baron, R
Kashemirov, B
Ebetino, F
Triffitt, J
Russell, R
McKenna, C
author_sort Marma, MS
collection OXFORD
description Alpha-halogenated analogues of the anti-resorptive bisphosphonate risedronate (5, Ris) and its phosphonocarboxylate cognate (7, 3-PEHPC) were synthesized and compared with 5, 7, and the corresponding desoxy analogues in bone mineral affinity and mevalonate pathway inhibition assays. The Ris (5e-h) and 3-PEHPC (7e-h) analogues had decreased bone mineral affinity, confirming that the alpha-OH group in 5 and 7 enhances bone affinity. The 5 alpha-halo-analogues potently inhibited farnesyl pyrophosphate synthase (FPPS) with IC50 values from 16 (alpha-F) to 340 (alpha-Br) nM (5, 6 nM). In contrast, 7 alpha-halo-analogues were ineffective versus FPPS (IC50 > 600 microM), but inhibited Rab geranylgeranyl transferase (RGGT) (IC50 = 16-35 microM) similarly to 7 itself (IC50 = 24 microM). The alpha-F analogue 7e was 1-2 times as active as 7 in J774 cell viability and Rab11 prenylation inhibition assays.
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spelling oxford-uuid:614c8fca-0223-4157-95d6-c40937a790812022-03-26T17:58:57ZSynthesis and biological evaluation of alpha-halogenated bisphosphonate and phosphonocarboxylate analogues of risedronate.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:614c8fca-0223-4157-95d6-c40937a79081EnglishSymplectic Elements at Oxford2007Marma, MSXia, ZStewart, CCoxon, FDunford, JBaron, RKashemirov, BEbetino, FTriffitt, JRussell, RMcKenna, CAlpha-halogenated analogues of the anti-resorptive bisphosphonate risedronate (5, Ris) and its phosphonocarboxylate cognate (7, 3-PEHPC) were synthesized and compared with 5, 7, and the corresponding desoxy analogues in bone mineral affinity and mevalonate pathway inhibition assays. The Ris (5e-h) and 3-PEHPC (7e-h) analogues had decreased bone mineral affinity, confirming that the alpha-OH group in 5 and 7 enhances bone affinity. The 5 alpha-halo-analogues potently inhibited farnesyl pyrophosphate synthase (FPPS) with IC50 values from 16 (alpha-F) to 340 (alpha-Br) nM (5, 6 nM). In contrast, 7 alpha-halo-analogues were ineffective versus FPPS (IC50 > 600 microM), but inhibited Rab geranylgeranyl transferase (RGGT) (IC50 = 16-35 microM) similarly to 7 itself (IC50 = 24 microM). The alpha-F analogue 7e was 1-2 times as active as 7 in J774 cell viability and Rab11 prenylation inhibition assays.
spellingShingle Marma, MS
Xia, Z
Stewart, C
Coxon, F
Dunford, J
Baron, R
Kashemirov, B
Ebetino, F
Triffitt, J
Russell, R
McKenna, C
Synthesis and biological evaluation of alpha-halogenated bisphosphonate and phosphonocarboxylate analogues of risedronate.
title Synthesis and biological evaluation of alpha-halogenated bisphosphonate and phosphonocarboxylate analogues of risedronate.
title_full Synthesis and biological evaluation of alpha-halogenated bisphosphonate and phosphonocarboxylate analogues of risedronate.
title_fullStr Synthesis and biological evaluation of alpha-halogenated bisphosphonate and phosphonocarboxylate analogues of risedronate.
title_full_unstemmed Synthesis and biological evaluation of alpha-halogenated bisphosphonate and phosphonocarboxylate analogues of risedronate.
title_short Synthesis and biological evaluation of alpha-halogenated bisphosphonate and phosphonocarboxylate analogues of risedronate.
title_sort synthesis and biological evaluation of alpha halogenated bisphosphonate and phosphonocarboxylate analogues of risedronate
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