A Versatile Synthesis of 5′-Functionalized Nucleosides Through Regioselective Enzymatic Hydrolysis of Their Peracetylated Precursors

被引：20

作者：

Bavaro, Teodora ^{[1
,2
,3
]}

Rocchietti, Silvia ^{[2
,3
]}

Ubiali, Daniela ^{[1
,2
]}

Filice, Marco ^{[1
,2
]}

Terreni, Marco ^{[1
,2
]}

Pregnolato, Massimo ^{[1
,2
]}

机构：

[1] Univ Pavia, Dipartimento Chim Farmaceut, Pharmaceut Biocatalysis Labs, I-27100 Pavia, Italy

[2] Univ Pavia, Dipartimento Chim Farmaceut, Italian Biocatalysis Ctr, I-27100 Pavia, Italy

[3] Innovate Biotechnol Srl, I-15050 Rivalta Scrivia, AL, Italy

来源：

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY | 2009年 / 2009卷 / 12期

关键词：

Immobilization; Lipases; Nucleosides; Regioselectivity; Enzymes; IMMOBILIZATION; DEPROTECTION; ENZYMES; URIDINE; LIPASES; 2'-DEOXYNUCLEOSIDES; ALCOHOLYSIS; ACYLATION; ANALOGS;

D O I：

10.1002/ejoc.200801096

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

We describe a chemo-enzymatic synthesis of modified nucleosides through lipase-catalyzed hydrolysis of their peracetylated precursors. It was found from screening of a large number of substrates that these enzymes' regioselectivities were affected by the sugar and the nucleobase structures. By selecting the best enzyme for each substrate in terms of activity and regioselectivity, we prepared a small library of differently monodeprotected purine and pyrimidine nucleosides useful as intermediates for the synthesis of high-value nucleosides and mononucleotides. By this approach, the chemo-enzymatic preparation of doxifluridine (14) and uridine 5'-monophosphate (5'-UMP, 15) from peracetylated uridine 1 was carried out. Elimination of many of the processing stages associated with existing methods was achieved, and higher yields and products of increased purity were generated. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)

引用

页码：1967 / 1975

页数：9

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[1] ISOLATION OF A T-LYMPHOTROPIC RETROVIRUS FROM A PATIENT AT RISK FOR ACQUIRED IMMUNE-DEFICIENCY SYNDROME (AIDS) [J].