I5127

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关键词:'I5127'

显示 1-7 共 7 条结果关于 "I5127" 范围论文

[New nucleoside conjugates with phospholipids: synthesis of anti-HIV activity of rac-1-hexadecyl-2-acyl-sn-glycero-3-phosphonucleosides].

S I Malekin et al.

Bioorganicheskaia khimiia, 23(8), 648-654 (1997-08-01)

New nucleoside-phospholipid conjugates were synthesized based on 1,2-disubstituted glycerides and nucleosides. These contain rac-1-hexadecyl-2-palmitoyl(or 2-methylcarbamoyl)-sn-glycero-3-phosphate as the phospholipid component and 2',3'-didehydro-3'-deoxythymidine, 1-(Z-5-hydroxypentene-2-yl)thymine, or 2',3'-isopropylideneuridine as a nucleoside component. The conjugates were synthesized by three different ways: from rac-1-hexadecyl-2-acyl-sn-glycero-3-phospodichlorides, -3-phosphatidic acids

New methods for the synthesis of N-benzoylated uridine and thymidine derivatives; a convenient method for N-debenzoylation.

Anita R Maguire et al.

Carbohydrate research, 337(4), 369-372 (2002-02-14)

An improved procedure for the synthesis of N-benzoyl-2',3'-O-isopropylidene uridine via one-step selective N-benzoylation of 2',3' -O-isopropylidene uridine has been developed. An efficient synthetic route to N-benzoyl thymidine via initial tribenzoylation, followed by selective hydrolysis of the benzoates is also described.

5'-Uridyl derivatives of N-glycosyl allophanic acid and biuret.

Marietta Tóth et al.

Carbohydrate research, 345(1), 163-167 (2009-11-10)

(2',3'-O-Isopropylidene-5'-uridyl) 4-(2,3,4,6-tetra-O-acetyl-beta-d-glycopyranosyl)allophanates were obtained in the reactions of 2',3'-O-isopropylidene-uridine and O-peracetylated beta-d-gluco-, galacto- and xylopyranosylamines, and OCNCOCl. 2,3,4,6-Tetra-O-acetyl-beta-d-glucopyranosyl isocyanate and N-(2',3'-O-isopropylidene-5'-uridyl)urea gave 1-(2,3,4,6-tetra-O-acetyl-beta-d-glucopyranosyl)-5-(2',3'-O-isopropylidene-5'-uridyl)biuret. Deprotection of the beta-d-gluco configured allophanate and biuret was carried out by standard methods.

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Enhancement of radiation-induced base release from nucleosides in alkaline solution: essential role of the O.- radical.

M L Scholes et al.

International journal of radiation biology, 61(4), 443-449 (1992-04-01)

The effect of pH on base release in the gamma-radiolysis of N2O-saturated solutions of a number of nucleosides (including uridine, 3-methyluridine, 2',3'-O-isopropylidene-uridine, and adenosine) has been investigated. For all these nucleotides, independent of the base or sugar moiety, base release

Synthesis and central nervous system depressant effects of N3-substituted 2',3'-O-isopropylideneuridines.

C S Yao et al.

Chemical & pharmaceutical bulletin, 47(12), 1802-1804 (2000-04-05)

N3-Substituted derivatives of 2',3'-O-isopropylideneuridine (1) were synthesized and their pharmacological effects on the central nervous system (CNS) examined using mice. Methyl (2), ethyl (3), propyl (4), butyl (5), allyl (6), benzyl (7), o-, m-, p-xylyls (8, 9, 10), and alpha-phenylethyl

Synthesis of N3-substituted uridine and related pyrimidine nucleosides and their antinociceptive effects in mice.

Tomomi Shimizu et al.

Chemical & pharmaceutical bulletin, 53(3), 313-318 (2005-03-04)

Seventy eight N(3)-substituted derivatives of uridine (1), thymidine (2), 2'-deoxyuridine (3), 6-azauridine (4), 2',3'-O-isopropylideneuridine (5), and arabinofuranosyluracil (6) were synthesized and their antinociceptive effects were evaluated. N(3)-(2',4'-Dimethoxyphenacyl)uridine (1l), N(3)-(2',4'-dimethoxyphenacyl)2'-deoxyuridine (3l), and N(3)-(2',5'-dimethoxyphenacyl)arabinofuranosyluracil (6m) possessed 93, 86, and 82% of the

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