GB753567A - Synthesis of nucleoside esters of pyrophosphoric acid - Google Patents

Synthesis of nucleoside esters of pyrophosphoric acid

Info

Publication number
GB753567A
GB753567A GB29015/52A GB2901552A GB753567A GB 753567 A GB753567 A GB 753567A GB 29015/52 A GB29015/52 A GB 29015/52A GB 2901552 A GB2901552 A GB 2901552A GB 753567 A GB753567 A GB 753567A
Authority
GB
United Kingdom
Prior art keywords
uridine
isopropylidene
salt
nucleoside
phosphate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB29015/52A
Inventor
Alexander Robertus Todd
George Wallace Kenner
Stuart Murray Heys Christie
Neville Slater Corby
Frederick John Weymouth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Research Corp
Original Assignee
National Research Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by National Research Corp filed Critical National Research Corp
Priority to GB29015/52A priority Critical patent/GB753567A/en
Publication of GB753567A publication Critical patent/GB753567A/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07HSUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H1/00Processes for the preparation of sugar derivatives
    • C07H1/02Phosphorylation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/55Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Biotechnology (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Molecular Biology (AREA)
  • Saccharide Compounds (AREA)

Abstract

The invention comprises nucleoside esters of phosphorous and halophosphonic acids, and the synthesis of nucleoside pyrophosphates therefrom as set out below, in which R1 and/or R2 is a nucleoside residue, the other being a monovalent hydrocarbon residue as also are R3 and R4. A phosphite mono-ester (R3O)(HO) PHO is treated with ZPO(OR4)2 in the presence of a tertiary base to give a phosphite-phosphate "mixed anhydride" (R3O)(PHO)O(PO)(OR4)2. Treatment of the latter with a nucleoside R1OH (protected if necessary) with a halogenating agent in an indifferent solvent in the presence of a tertiary base gives a halophosphonate ester (R1O)(R3O)(PO)X. This is reacted with an orthophosphate mono-salt in which the other two hydrogen atoms may be replaced, one by a group R2 and the other by a protecting group where necessary, and the resulting pyrophosphate ester hydrolysed to split off the group R3 and any protecting groups in the phosphate or nucleoside portions of the molecule. The final product is (R1O)(HO)(PO)O(PO)(OH) (OR2). Preferably R3 is aralkyl, R4 is aryl and Z is halogen or (R4O)2(PO)-O-. The halogenating agent is preferably an N-chloro secondary amide such as N-chloro-succinimide or N : 2 : 4-trichloracetanilide. The chlorophosphonates so obtained may be characterized by hydrolysis to nucleotide esters or by treatment with amines to give aminophosphonates. The orthophosphate may be used as a metallic, ammonium or substituted ammonium salt such as that of triethylamine. Aralkyl protecting groups may be removed by treatment with a metallic or substituted ammonium salt (e.g. lithium chloride), or an alkali thiocyanate in a cyanoalkane, or by a phenol which has been used as solvent in the previous stage, or else by hydrogenolysis. Protecting groups on the nucleoside residue (e.g. O-acyl or isopropylidene) can be split off by careful acid or alkaline hydrolysis. In the examples: (1) monobenzyl phosphite (by acidification of its ammonium salt) is treated with diphenyl chlorophosphate or tetraphenyl pyrophosphate to give a mixed anhydride (characterized by reaction with ammonia and benzyl alcohol to form dibenzyl aminophosphonate); this with 21 : 31-isopropylidene-uridine yields 21 : 31 - isopropylidene - uridine - 51 - benzyl phosphite, converted by N-chlorsuccinimide into the 51-benzylchlorophosphonate (characterized by hydrolysis to 21 : 31-isopropylideneuridine - 51 - benzylhydrogenphosphate); this is reacted with triethylammonium 21 : 31-isopropylidene-51-benzylphosphate and the product debenzylated with potassium thiocyanate in acetonitrile; hydrolysis with hydrochloric acid gives di - (uridine - 51) - pyrophosphate, obtained as barium salt and converted via the free acid into the lithium salt; uridine-51-phosphate is a by-product; (2) 21 : 31-isopropylidene - uridine - 51 - benzylchlorophosphonate and triethylammonium dibenzyl phosphate give 21 : 31-isopropylidene-uridine-51-tri benzylpyrophosphate, converted by heating with lithium chloride into the lithium salt of 21 : 31 - isopropylidene - uridine - 51 - benzyl pyrophosphate; this is acidified and hydrogenated to uridine-51-pyrophosphate (obtained as barium salt) together with its 21 : 31-isopropylidene derivative and uridine-51-phosphate; (3) the mixed anhydride of (1) is reacted with 21 : 31 - diacetyl - uridine to give 21 : 31-diacetyl - uridine - 51 - benzylphosphite and halogenated to 21 : 31-diacetyluridine-51-benzylchlorophosphonate; (4) similarly to (3) there are prepared 21 : 31 - isopropylidene - adenosine - 51 - benzylphosphite and 51 - benzylchlorophosphonate; the latter is reacted with mono-silver riboflavin-51-phosphate (from the di-silver salt and the free acid) and the product hydrolysed to P-(riboflavin-51)-P1-(adenosine51) - dihydrogenpyrophosphate (purified via silver salt); this is identical with the natural flavin - adenine - dinucleotide (FAD). The process is applicable to any purine or pyrimidine nycleoside obtained by hydrolysing ribonucleic and deoxyribonucleic acids. Specifications 621,094 and 697,473 are referred to.
GB29015/52A 1952-11-17 1952-11-17 Synthesis of nucleoside esters of pyrophosphoric acid Expired GB753567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB29015/52A GB753567A (en) 1952-11-17 1952-11-17 Synthesis of nucleoside esters of pyrophosphoric acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29015/52A GB753567A (en) 1952-11-17 1952-11-17 Synthesis of nucleoside esters of pyrophosphoric acid

Publications (1)

Publication Number Publication Date
GB753567A true GB753567A (en) 1956-07-25

Family

ID=10284890

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29015/52A Expired GB753567A (en) 1952-11-17 1952-11-17 Synthesis of nucleoside esters of pyrophosphoric acid

Country Status (1)

Country Link
GB (1) GB753567A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983002616A1 (en) * 1982-02-01 1983-08-04 Innovax Lab Ltd COMPOSITION AND METHOD FOR FORMING A5'p5'pn3'p (AppNp)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983002616A1 (en) * 1982-02-01 1983-08-04 Innovax Lab Ltd COMPOSITION AND METHOD FOR FORMING A5'p5'pn3'p (AppNp)
FR2521147A1 (en) * 1982-02-01 1983-08-12 Innovax Lab Ltd COMPOSITION AND METHOD FOR FORMING A5'P5'PN3'P (APPNP)

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