A novel route to a chiral building block for the preparation of cyclopentenyl carbocyclic nucleosides. Synthesis and anticancer activity of enantiomeric neplanocins A.
RSC Adv
; 10(53): 31838-31847, 2020 Aug 26.
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| MEDLINE
| ID: mdl-35518147
ABSTRACT
The synthesis of both enantiomers of 3-[(tert-butyldimethylsilyl)oxy]methyl-4,5-O-isopropylidenecyclopent-2-en-1-ol was accomplished in six steps based on optically inactive dimethyl meso-tartrate. This key intermediate in the synthesis of cyclopentenyl carbocyclic nucleosides was subsequently applied in the preparation of enantiomeric neplanocins A. The toxic effect of these compounds was investigated for a series of suspension and adherent cancer cell lines and normal human fibroblasts. (-)-Neplanocin A ((-)-NPA) was more toxic against all tested cancer cell lines than its dextrorotary counterpart. The highest toxicity with IC50 values of 7 and 10 µM was observed for the MOLT-4 and A431 cells, respectively. Moreover, (-)-NPA also induced apoptosis in A431 cell while this effect was not observed for (+)-NPA.
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Colección:
01-internacional
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MEDLINE
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En
Revista:
RSC Adv
Año:
2020
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Article