Reactions of Nucleosides with 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU). Syntheses of N(3)-Methylene-Bridged Bis-uridines and Secouridine-Dinucleoside Analogs
In: Helvetica Chimica Acta, Jg. 76 (1993-11-03), S. 2553-2562
Online
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Zugriff:
Diasteroisomeric secouridine derivatives, appropriately protected and activated, served as starting compounds in the reactions with 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) in various solvents (CH2Cl2, MeCN, or dimethylformamide (DMF)). Reactions with DBU/CH2Cl2 gave N(3)-methylene-bridged bis-secouridines and bis-uridines (Scheme 3), while the reactions with DBU in non-alkylating solvents resulted in formation of secdinucleosides as the result of intermolecular ‘dimerizations’ (Scheme 2).
Titel: |
Reactions of Nucleosides with 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU). Syntheses of N(3)-Methylene-Bridged Bis-uridines and Secouridine-Dinucleoside Analogs
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Autor/in / Beteiligte Person: | Čaplar, Vesna ; Škarić, Vinko |
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Zeitschrift: | Helvetica Chimica Acta, Jg. 76 (1993-11-03), S. 2553-2562 |
Veröffentlichung: | Wiley, 1993 |
Medientyp: | unknown |
ISSN: | 1522-2675 (print) ; 0018-019X (print) |
DOI: | 10.1002/hlca.19930760715 |
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