US3082203A - Novel nucleotide coenzymes - Google Patents

Novel nucleotide coenzymes Download PDF

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US3082203A
US3082203A US7744A US774460A US3082203A US 3082203 A US3082203 A US 3082203A US 7744 A US7744 A US 7744A US 774460 A US774460 A US 774460A US 3082203 A US3082203 A US 3082203A
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adenosine
nucleotide
phosphate
coenzymes
imidazole
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US7744A
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Goldman Leon
Marsico Joseph William
Anderson George Washington
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Wyeth Holdings LLC
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American Cyanamid Co
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07HSUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H19/00Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof
    • C07H19/02Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
    • C07H19/04Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
    • C07H19/16Purine radicals
    • C07H19/20Purine radicals with the saccharide radical esterified by phosphoric or polyphosphoric acids

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
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Description

United States Patent ice Patented idlifli The term nucleoside is used herein to include deoxy- 3,032,203 nuoleosides. Thus, nucleoside within the meaning of NOVEL NUCLEOTIDE; (FOENZYMES the present invention includes: Leon Goldman and Joseph William Marslco, Nanuet, (4) Thymidine (or thymine deOXyfibOSidC):
N.Y., and George Washington Anderson, Upper Saddle River, N.J., assignors to American Cyanamid Com- 5 pany, New York, N.Y., a corporation of Maine No Drawing. Filed Feb. 10, 1960, Ser. No. 7,744
4 Claims. (Cl. 260-211.5)
The present invention relates to a novel method of preparing nucleotide coenzymes of biological and medical significance.
In order to clarify the exact nature of the chemical compounds of the present invention a few definitions will first be given before proceeding with the description of th invention.
A nucleoside is an N-glycoside of 'a heterocyclic base, generally a pyrimidine or a purine. Examples of nucleosides are:
(1) Adenosine (or adenine riboside):
A nucleotide is a phosphate ester of a nucleoside and may be a nucleoside monophosphate or a nucleoside polyphosphate. Examples of nucleoside monophosphates are:
(l1) Adenosine-'5 phosphate (or muscle adenylic acid or adenosine monophosphate, the latter hereinafter termed AMP) (3) Cytidine-S phosphate:
ff H O-F-0H 3 (4) Thymidine-S phosphate:
Examples of nucleoside polyphosphates are: (l) Adenosine-S' diphosphate (hereinafter termed ADP):
(2) Adnosine-S' triphosphate (hereinafter termed ATP):
Originally, the term nucleotide referred only to phosphate esters of nucleosides. Today, the term nucleotide is applied to phosphate esters of N-glycosides of heterocyclic bases generally. The newer definition, thus, includes not only the simple nucleotides of the original definition, but also the nucleic acids (polynucleotides) and such substances as adenosine-S' triphosphate and nicotinamide nucleotide. Derivatives of riboflavin phosphate, although not glycosidic in nature, are commonly included among the nucleotides because of their similarity to, and association with, true nucleotides.
A nucleotide coenzyme is a compound including in its structure at least one simple nucleotide moiety. The term nucleotide coenzyme is applied to a large and growing group of substances which are vital components of many enzyme systems involved in metabolic processes. Nucleotide coenzymes function in association with specific proteins or apoenzymes, the complete enzyme system being made up of the combination apoenzyme plus coenzyme. Historically, the first nucleotide coenzyme discovered was cozyrnase, or diphosphopyridine nucleotide,
discovered by Harden and Young in 1904. Examples of nucleotide coenzymes are:
(1) Cozymase (or diphosphopyridine nucleotide):
(2) Flavin adenine dinucleotide:
Oil
(3) Uridine diphosphate glucose:
The preparation of adenosine-S' phosphoroimidazole from adenosine-5' phosphate, dicyclohexylcarbodiimide and imidazole was reported by R. W. Chambers and I. G. Moffatt [1. Am. Chem. Soc. 80, 3752 (1958)]. Thereafter, the more facile preparation of nucleotide imidazoles by the interaction of a salt of a nucleotide and a l,1-carbonyldiimidazole was discovered by L. Goldman et a1. as is more fully set forth in U.S. Patent No. 2,951,838.
The reactivity of phosphorylated imidazoles is much greater than that of the ordinary phosphoramidates which also contain a phosphorus-nitrogen linkage. It has been postulated that this is a result of electronic displacements associated in particular with the electron attraction of the unsubstituted nitrogen atom. Surprisingly, however, although the phosphorus-nitrogen bond in the nucleotide imidazoles is thus generally activated, it is nevertheless resistant to reaction with water. Hence, it is possible to prepare nucleotide coenzymes and related compounds such as the linear and cyclic oligonucleotides from the nucleotide imidazoles in the presence of water as a solvent without the starting material reacting with that solvent. This NHZ.
O RENE RC 02H II rrlsol ll RCHCOzH Base-sugar-O ROH Base-sugar-O ROP 0311 wherein the Base may be either a purine or a pyrimidine moiety, the Sugar may be either a pentose or a hexose moiety such as D-ribose, D-glucose, or 2-deoxy-D-rib-ose, and wherein imidazole is a by-product in each case. These nucleotide coenzymes may be prepared by the novel method of the present invention in aqueous or nonaqueous media, at temperatures of from C. up to 100 C., and over a period of time of from a few minutes up to 12 hours.
The nucleotide coenzymes produced by the novel method of the present invention are useful as vital components of many enzyme systems. They are useful as organic catalytic agents in that they are capable of altering the velocity of many chemical reactions.
The following examples illustrate the novel method of preparing nucleotide coenzymes of the present invention.
EXAMPLE 1 Preparation of l,3-Dicycl0hexylguanidinium Azlenosine-b" Phosphoramia'ate A solution of adenosine-S' phosphoroimidazole in anhydrous dimethylformamide (prepared from 1.00 g. of adenosine-S' phosphate hydrate, 0.586 g. of imidazole, and 1.38 g. of 1,l'-carbonyldiimidazole) was diluted with 2 N ammonium hydroxide and tert-butyl alcohol and heated in a stainless steel bomb at 92 C. for 11 hours.
6 To the bomb contents, 0.612 g. of 1,3-dicyclohexylguanidine was added and the resultant solution evaporated under reduced pressure to a gummy residue. Addition of acetone followed by filtration gave 1.55 g. of colorless crystals of 1,3-dicyclohexylguanidinium adenosine-S phosphoramidate (solvated with Water and dimethylformamide), melting point 211-214 C. dec. The product was homogeneous has shown by paper chromatography in isopropyl alcohol-ammonia-water (7-1-2) and by paper electrophoresis in pH 7.5 phosphate buffer. Recrystallization from aqueous acetone gave l,3-dicyclohexylguanidinium NHZ adenosine-S' phosphoramidate, melting point 236238 C. dec.
EXAMPLE2 Preparation of 1,3-Dicycl0hexylguanidinium Adenosine-S Phosphora midate A solution of adenosine-S phosphoroimidazole in 7.5 ml. of anhydrous dimethylformamide (prepared from 1.00 g. of adenosine-S phosphate hydrate, 0.586 g. of imidazole, and 0.92 g. of 1,l carbonyldiimidazole) was dissolved in 20 ml. of 0.46 N ammonium hydroxide and heated in a stainless steel bomb at 65 C. for 10 hours. To the bomb contents was added 0.612 gram of 1,3,- dicyclohexylguanidine and the solution was evaporated to dryness under reduced pressure. Recrystallization of the residue from aqueous acetone gave 1.41 g. of colorless crystals of 1,3-dicyclohexylguanidinium adenosine-S phosphoramidate (solvated with water and dimethylform amide), melting point 236-238 C. dec.
EXAMPLE 3 Preparation of Acridinium Aden0sine-5 Pyrophosphate To a stirred solution of adenosine-S' phosphoroimidazole in anhydrous dimethylforrnamide (prepared from 0.200 g. of adenosine-S' phosphate hydrate,-0.ll7 g. of imidazole, and 0.0886 g. of 1,1'-carbonyldiimidazole) at 10 C. to 20 C. was added dropwise a solution of 0.24 ml. of 85% phosphoric acid in dimethylformamide. The mixture was allowed to warm to room temperature during one-half hour. The gummy solid, which separated on chilling, was dissolved in dilute sulfuric acid and treated with ethanolic acridine to yield 0.222 gram of acridinium adenosine-S' pyrophosphate as yellow crystals, melting point 2l2-2l5 C. dec. Recrystallization from water gave yellow needles, melting point 216-217 C. dec. Paper chromatography in 5% disodium phosphateisoamyl alcohol and in isopropyl alcohol-|1% ammonium sulfate (3-2), and paper electrophoresis in 0.02 M potassium dihydrogen phosphate, showed as the only impurity a trace of adenosine-S phosphate.
EXAMPLE 4 Preparation of P P -DiQdBIZOSiIIE-S' Pyrophosphate To a stirred solution of 1.00 gram of adenosine-5 phosphate monohydrate and 0.586 gram of imidazole in 7.5 ml. of anhydrous dimethylformamide at to C. was added 0.922 gram of 1,1-carbonyldiimidazole. After five minutes the temperature of the reaction mixture was loweredo to -20 C., and after 10 minutes 1.00 gram of adenosine-S' phosphate was added, with stirring. After minutes the reaction mixture was warmed to room temperature, and after 26 hours 3 ml. of pyridine was added. After 47 hours the resulting solution was worked up by chromatography on Dowex-l (formate) [S. M. H. Christie, D. T. Elmore, G. W. Kenner, A. R. Rodd, and F. J. Weymouth, 1. Chem. Soc., 2947 (1953)] to yield, by evaporation of the 0.5 N formic acid eluate, 1.06 gram of P P -diadenosine-S' pyrophosphate sesquihydrate as colorless crystals, which were homogeneous by paper chromatography in 5% disodium phosphateisoamyl alcohol and in n-butyl alcohol-acetic acid-water (5-2-3), and by paper electrophoresis in 0.02 M potassium dihydrogen phosphate.
8 EXAMPLE 5 Preparation of P -Aden0sine-5' P -UridiMe-S Pyrophosphate A solution of adenosine-S' phosphoroimidazole in anhydrous dimethylformamide (prepared from 0.0903 g. of adenosine-5 phosphate hydrate, 0.0528 g. of imidazole, and 0.132 g. of 1,l carbonyldiimidazole) was added to 0.1045 g. of imidazolium uridine-S phosphate. The reaction was diluted with 1.0 ml. of anhydrous pyridine and stirred for 74 hours at room temperature. When an aliquot was removed and subjected to paper electrophoresis in an acetate buffer of pH 4.8, the major component, P -adenosine-5 P -uridine-S pyrophosphate, traveled 15.7 cm. towards the anode, whereas the minor components, adenosine-5' phosphate, uridine-S' phosphate, and P P -(diuridine-S') pyrophosphate traveled 9.3, 13.0 and 18.7 cm., respectively.
We claim:
1. The method of preparing nucleotide coenzymes which comprises reacting a nucleotide imidazole with a nucleophilic agent selected from the group consisting of ammonia, primary amines, secondary amines, carboxylic acids, sulfuric acid, carbonic acid, N-blocked a-amino acids, alcohols, phosphate esters and phosphoric acid.
2. The method of preparing adenosine-S phosphoramidate which comprises reacting adenosine-S phosphoroimidazole with aqueous ammonia at a temperature between C. and C.
3. The method of preparing adenosine-S pyrophosphate which comprises reacting adenosine-fi' phosphoroimidazole with phosphoric acid at a temperature between -20 C. and 30 C.
4. The method of preparing P W-diadenosine-S' pyrophosphate which comprises reacting adenosine-S phosphoroimidazole with adenosine-S' phosphate at :1 mm perature between 20 C. and 30 C.
No references cited.

Claims (1)

1. THE METHOD OF PREPARING NUCLEOTIDE COENZYMES WHICH COMPRISES REACTING A NUCLEOTIDE IMIDAZOLE WITH A NUCLEOPHILIC AGENT SELECTED FROM THE GROUP CONSISTING OF AMMONIA, PRIMARY AMINES, SECONDARY AMINES, CARBOXYLIC ACIDS, SLUFURIC ACID, CARBONIC ACID, N-BLOCKED A-AMINO ACIDS, ALCOHOLS, PHOSPHATE ESTERS AND PHOSPHORIC ACID.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3299042A (en) * 1964-06-22 1967-01-17 Lipkin David Iodination of the heterocyclic bases in nucleosides, nucleotides, nucleoside-5'-polyphosphates, and nucleic acids
US3321462A (en) * 1963-07-15 1967-05-23 Syntex Corp Process for the preparation of nucleoside polyphosphates
US3332935A (en) * 1963-08-07 1967-07-25 Ajinomoto Kk Preparation of guanosine and intermediates therein
WO1990005736A2 (en) * 1988-11-23 1990-05-31 Medical Research Council Nucleoside analogues

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321462A (en) * 1963-07-15 1967-05-23 Syntex Corp Process for the preparation of nucleoside polyphosphates
US3332935A (en) * 1963-08-07 1967-07-25 Ajinomoto Kk Preparation of guanosine and intermediates therein
US3299042A (en) * 1964-06-22 1967-01-17 Lipkin David Iodination of the heterocyclic bases in nucleosides, nucleotides, nucleoside-5'-polyphosphates, and nucleic acids
WO1990005736A2 (en) * 1988-11-23 1990-05-31 Medical Research Council Nucleoside analogues
WO1990005736A3 (en) * 1988-11-23 1990-07-12 Medical Res Council Nucleoside analogues

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