𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Preparation of 6-azauracil-5-3H and 6-azauridine-5-3H of high molar activity

✍ Scribed by Jiri Filip; Jan Skoda; Hynek Hradec


Publisher
John Wiley and Sons
Year
1974
Tongue
French
Weight
404 KB
Volume
10
Category
Article
ISSN
0022-2135

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

Catalytic reductive dehalogenation of 5‐bromo‐6‐azauracil with carrier‐free tritium led to 6‐azauracil‐5‐^3^ H of a molar activity of 19.0 Ci/mmole. The reaction conditions for the catalytic reductive dehalogenation were examined in tracer experiments. Microbial transformation was used for the preparation of 6‐azauridine‐5‐^3^ H from 6‐azauracil‐5‐^3^ H. 6‐Azauridine‐5‐^3^‐ H was prepared at a molar activity of 18.8 Ci/mmole. In both compounds the stability of tritium was investigated in an aqueous medium at 100°C.


📜 SIMILAR VOLUMES


Preparation of 5-fluorouracil-6-3H of hi
✍ Jíří Filip; František Vyšata 📂 Article 📅 1969 🏛 John Wiley and Sons 🌐 French ⚖ 448 KB

Isotopic exchange of hydrogen in a system of s~lvent-water-~H was used to prepare 5-Juoroorotic a ~i d -~H ( G ) which was decarboxylated and the hydrogen-3H removed from labile bonds to yield 5'-Juorouracil-6-3H. It was found in tracer experiments that a suitable solvent for the isotopic exchange o

Preparation of biphenyl-2,2′,3,3′,5,5′,6
✍ Alice M. Clark; Patrick J. Davis; Robert V. Smith 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 French ⚖ 174 KB

## Abstract Biphenyl‐2,2′,3,3′,5,5′,6,6′‐^2^H~8~ was prepared from biphenyl‐d~10~. Initial bromination of biphenyl‐d~10~ followed by hydrogenolysis of the 4,4′‐dibromobiphenyl‐d~8~ with lithium aluminum hydride gave the desired product in 40% overall yield.

Preparation of [2′,3′,5′,6′-2H4]pteroylg
✍ Stephen R. Dueker; A. Daniel Jones; Gary M. Smith; Andrew J. Clifford 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 French ⚖ 444 KB

## Abstract Folic acid plays a key role in nucleic acid biosynthesis, essential for normal cell proliferation and function. Localized folate deficiencies may be related to changes in cytology associated with cancer development; analogs of folic acid, such as methotrexate, are potent chemotherapeuti