WO1990011292A2 - Composes anesthesiques a duree d'action controlee et compositions pharmaceutiques les contenant - Google Patents
Composes anesthesiques a duree d'action controlee et compositions pharmaceutiques les contenant Download PDFInfo
- Publication number
- WO1990011292A2 WO1990011292A2 PCT/FR1990/000197 FR9000197W WO9011292A2 WO 1990011292 A2 WO1990011292 A2 WO 1990011292A2 FR 9000197 W FR9000197 W FR 9000197W WO 9011292 A2 WO9011292 A2 WO 9011292A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- amino acids
- benzocaine
- compounds
- alpha amino
- group
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K7/00—Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
- C07K7/04—Linear peptides containing only normal peptide links
- C07K7/06—Linear peptides containing only normal peptide links having 5 to 11 amino acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/02—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing at least one abnormal peptide link
- C07K5/0207—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing at least one abnormal peptide link containing the structure -NH-(X)4-C(=0), e.g. 'isosters', replacing two amino acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
- C07K5/06—Dipeptides
- C07K5/06008—Dipeptides with the first amino acid being neutral
- C07K5/06017—Dipeptides with the first amino acid being neutral and aliphatic
- C07K5/06026—Dipeptides with the first amino acid being neutral and aliphatic the side chain containing 0 or 1 carbon atom, i.e. Gly or Ala
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
- C07K5/06—Dipeptides
- C07K5/06008—Dipeptides with the first amino acid being neutral
- C07K5/06017—Dipeptides with the first amino acid being neutral and aliphatic
- C07K5/0606—Dipeptides with the first amino acid being neutral and aliphatic the side chain containing heteroatoms not provided for by C07K5/06086 - C07K5/06139, e.g. Ser, Met, Cys, Thr
- C07K5/06069—Ser-amino acid
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
- C07K5/06—Dipeptides
- C07K5/06008—Dipeptides with the first amino acid being neutral
- C07K5/06078—Dipeptides with the first amino acid being neutral and aromatic or cycloaliphatic
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
- C07K5/06—Dipeptides
- C07K5/06104—Dipeptides with the first amino acid being acidic
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
- C07K5/08—Tripeptides
- C07K5/0802—Tripeptides with the first amino acid being neutral
- C07K5/0804—Tripeptides with the first amino acid being neutral and aliphatic
- C07K5/0806—Tripeptides with the first amino acid being neutral and aliphatic the side chain containing 0 or 1 carbon atoms, i.e. Gly, Ala
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
- C07K5/10—Tetrapeptides
- C07K5/1002—Tetrapeptides with the first amino acid being neutral
- C07K5/1005—Tetrapeptides with the first amino acid being neutral and aliphatic
- C07K5/1008—Tetrapeptides with the first amino acid being neutral and aliphatic the side chain containing 0 or 1 carbon atoms, i.e. Gly, Ala
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
Definitions
- the present invention relates to anesthetic compounds and pharmaceutical compositions containing them.
- the present invention more particularly relates to local anesthetics, surface anesthetics or conduction anesthetics.
- Local anesthetics are used when general anesthesia is not necessary or is particularly dangerous. Their use is frequent in ophthalmology, laryngology, dentistry, obstetrics, as well as for minor surgical operations.
- local anesthetics can be applied to relieve itching or pain in the skin and mucous membranes.
- the first disadvantage of local anesthetics is that they undergo a rapid metabolism, which limits the pharmacological effect in intensity and duration.
- the second drawback of these anesthetics is that the anesthetic effect persists for a long time with a reduced intensity, therefore insufficient to operate but sufficient to hinder the patient in the case of an ambulatory intervention.
- one of the aims of the present invention is to provide local anesthetics whose duration of action is adapted to different durations of intervention.
- Another object of the present invention is to provide new anesthetics whose activity, greater than that of benzocaine, presents a "plateau" of activity and then decreases very quickly.
- R-NH-B is an anesthetic derived from aminobenzoic acids
- R is H or a C 1 -C 5 alkyl radical, preferably linear, optionally functionalized in position 2 to 5;
- the salts may be those of mineral acids such as sulfuric, hydrochloric or boric acids, those of alkyl sulfonic acids such as methylsulfonic acid, those of carboxylic acids, aliphatic with short chain such as formic acid and isobutyric acid, or aromatic acid such as benzoic acid or phenylpropionic acid. Mention may also be made of the salts of carbonic acid and those of the acids themselves having pharmacological properties such as chlorotheophyllinic acid.
- alpha amino acids are those commonly used in this area. It has been surprisingly found that among the oligopeptide derivatives of benzocaine and of compounds with a structure close to that of benzocaine according to the invention, those in which the C-terminal alpha amino acid is phenylalanine, preferably L phenylalanine , had particularly advantageous properties, in particular as conduction anesthetics, and that these properties can be modulated using the N-terminal alpha amino acids. To do this, the alpha amino acids coming after phenylalanine are advantageously hydrophilic. Among the amino acids considered to be hydrophilic, mention may be made of glycine, alanine, serine, lysine and glutamic acid.
- the preferred alpha amino acids are alanine and glycine.
- the number of amino acids located on the peptide chain makes it possible to modulate the anesthetic activity.
- the expression "derivative of amino-benzoic acids” suggests the possibility of substitution of an oxygen of the carboxyl function by a sulfur.
- n is an integer from 1 to 6 inclusive
- the alpha amino acids are different in D, L or D, L form, preferably in L form. They can be synthesized either by biological or chemical routes,
- R 1 is H or the radical corresponding to an alcohol, this alcohol derivative possibly leading to an ester of benzoic acid, in particular the radicals R 1 for which the R-NH-B compounds corresponding to the are of formula :
- R 1 can be C 1 -C 5 linear or branched alkyl.
- This alkyl may carry functional groups in positions 2 to 5, such as hydroxy, C 1 -C 5 alkoxy, amino groups; the latter being generally mono or disubstituted by C 1 -C 5 alkyl and / or alkylamino groups.
- the substituents can form with the amino group a nitrogen heterocycle C 5 or C 6 .
- [AA] represents a natural amino acid.
- n is between 2 and 6.
- meta-aminobenzoic acid such as betoxycaine, metabutethamine, metabutoxycaine, orthocaine, piridocaine, proxymetacaine;
- para-aminobenzoic acid derivatives such as ambucaine, amoxecaine, butacaine, buthetamine, butoform, chioroprocaine, cornecaine, dimethocaine, hydroxyprocaine, hydroxytetracaine, isobutylcaine, largacaine (derivative of p-amino-thaine, thiobin naepaine, oxybuprocaine, paridocaine, procaine, propoxycaine, risocaine, tetracaine, tutocaine.
- the invention also relates to pharmaceutical compositions useful in particular as local anesthetics, comprising at least one compound of formula I, la, Ib, Ib 'or lc.
- compositions may also contain the vectors and potentiating agents common in the matter, in particular vasoconstrictors.
- Another subject of the present invention is the application of the compounds according to the invention to the preparation of anesthetic conduction compositions, the latter being injectable.
- benzocaine is particularly well potentiated by the oligopeptide chains according to the invention.
- the present invention makes it possible to potentiate the activity of conduction anesthetics derived from amino-benzoic acids, in particular benzocaine, by grafting on the amino function an oligopeptide of 1 to 10 alpha amino acids, the first of these alpha amino acids being, in the case of benzocaine, phenylalanine, preferably L phenylalanine and its form L when phenylalanine is the only amino acid grafted.
- [AA] n is [AA] m + [AA] nm ,
- R is H or a C 1 -C 5 alkyl radical, preferably linear, optionally functionalized in position 2 to 5;
- n is an oligopeptide group of 1 to 10 alpha amino acids, preferably 2 to 6, that is to say in which n is an integer of 1 to
- R, B, [AA] and n have the same meaning as above, and where m is an integer between 1 and n, the possible reactive functions of the compound of formula II being protected,
- oligopeptide chain of formula [AA] m (III) in which the carboxylic group of the C-terminal amino acid is activated (that is to say susceptible to react with the amino function of the N-terminal amino acid of the compound of formula II) and in which the amino function of the N-terminal amino acid, as well as any reactive functions are protected and in which once the reaction finished, the protected functions are unprotected.
- nm is equal to 1
- the compound of formula II is produced by reacting a derivative of the C-terminal amino acid activated on the carboxylic group and whose amino function and the possible reactive functions have been protected, with a compound of formula H (R) NB where the possible reactive functions of B will have been protected, in which the protected functions are released once the condensation is complete and in which one grafts step by step the other alpha amino acids constituting the oligopeptide chain to obtain the compound of formula II.
- the value of m for the compound of formula II is equal to n, the compound of formula III having been synthesized step by step according to the so-called C ⁇ N or N ⁇ C technique.
- the compounds according to the present invention start from anesthetics having an aromatic amine function, which aromatic amine can be substituted once by an alkyl radical with low carbon number (1 to 5) optionally functionalized. This substitution can only be a monosubstitution so as to leave an H on the nitrogen of the aromatic amine, nitrogen on which the substitution of hydrogen takes place by the oligopeptide group.
- the property of these anilines to react was used as the amino function of an alpha amino acid.
- R is H, methyl or ethyl, preferably hydrogen.
- benzocaine serves as a model for the other anesthetics targeted by the invention.
- the synthesis of the new compounds according to the present invention is therefore carried out as the synthesis of a simple peptide chain.
- the compounds according to the present invention were produced by the so-called step-by-step synthesis techniques, that is to say by grafting the first alpha amino acid onto the anesthetic compound then by grafting the subsequent alpha amino acids one by one. .
- the diagram below clearly shows the synthesis routes that can be used and used according to the present invention.
- the amino acid C can be replaced by the anesthetic compound R-NH-B whose possible reactive functions have been protected.
- L 1 , L 2 , L 3 protective groups of functional side chains (identical or different).
- BOC carboxyl activator group
- protective groups Y or Y ′
- BOC ter-butyloxycarbonyl group
- the advantage of using the BOC is that it considerably reduces the risks of racemization during the activation and coupling processes.
- R ' H or C-protective group
- R 4 side chain of the amino acid, possibly protected.
- carbonyl activating groups they can be chosen from dicyclohexylcarbodiimide derivatives according to a technique used by KWAPISZEWSKI et al. (already cited).
- the reaction implemented can be symbolized by the following reaction:
- This technique is suitable both for fixing an alpha amino acid on the nitrogen of an aniline group and for the synthesis of oligopeptides themselves.
- alcohol esters forming a particularly stable oxygenated anion Mention may be made, for example, of the esters derived from pentafluorophenol and the esters derived from N-hydroxysuccinimide.
- activated esters has the advantage of giving as a coupling by-product compounds which are more easily separated from the desired product.
- R 4 side chain of the activated amino acid
- R ' radical of the activating compound
- R " structure of the amino component, except for its end
- the preferred mixed anhydrides are the anhydrides formed from chloroformates and more particularly hindered chloroformates such as, for example, isobutyl chloroformate.
- the preferred reagent for grafting the first link onto the anesthetic compound is the use of the mixed anhydride formed by the amino acid which it is desired to graft with isopropenyl chloroformate (IPCF). This compound can be prepared according to the method described in French patent 2,421,866.
- R 4 side chain of amino acids, possibly protected.
- L 1 , L 2 , L 3 represent possible protective groups of the side chains R 5 , R 2 , R 3
- alpha amino acids are those commonly used in the matter, namely:
- Gly Gly (glycine), Ala (alanine), Val (valine), Leu (leucine), lleu (isoleucine), Phe (phenylalanine), Ser (serine), Thr (threonine), Lys (lysine), Lys-OH ( ⁇ -hydroxylysine), Arg (arginine), Asp (aspartic acid), Asp-NH 2
- reaction medium After 3 hours at room temperature, the reaction medium is filtered and then concentrated. The mixture is redissolved in ethyl acetate, then performs a series of extracts, successively with water saturated with NaHCO 3 , with distilled water, with 0.1 N HCl, and with distilled water until the pH is close to neutral. The organic phase is dried over MgSO 4 , and the desired product obtained, in the pure state, by precipitation in diethyl ether and drying under a partial vacuum of 133 Pascal, or approximately
- the deprotection of the acid and alcohol functions is carried out by catalytic hydrogenation on palladium.
- the lengthening of the oligopeptide chain is carried out in the same way as the synthesis of BOC-ala-benzocaine.
- the solutions intended to be administered to rabbits or guinea pigs are prepared extemporaneously.
- the suspensions (in physiological saline or the DMF / physiological saline mixture 1/9 by volume are previously prepared in the laboratory, the average diameter of the particles being close to 20 ⁇ m. These suspensions are chemically stable, over a minimum period of one month .
- the anesthetic conduction activity of the composition tested was measured by the disappearance of the contraction reflex of the skin muscle when the skin is pricked from the back of the animal.
- the tests were carried out on batches of ten albino guinea pigs of the Hartley strain, weighing approximately 300 g.
- the benzocaine derivatives were administered, either in solution in physiological saline, or in the form of a suspension for the derivatives which are sparingly soluble in water, and were prepared as indicated.
- the test substance is injected by subcutaneous injection, at the level of the lumbar region.
- the volume injected is 0.25 ml.
- the local anesthetic activity is checked by pricking with a needle the point where the injection was carried out: we thus control the presence or absence of the skin reflex.
- the puncture of the point symmetrical to that of the injection with respect to the spine makes it possible to verify the existence of the reflex for a point not anesthetized.
- the test is considered positive when the bite does not cause a reflex.
- the local anesthetic activity of the different products is compared by drawing the curve connecting the logarithm of the average rating obtained at the time elapsed since the injection.
- FIG. 4 shows the anesthetic conduction activity of the same compounds but for which the concentration instead of being 1% corresponds to an equi-molar concentration to that of benzocaine 1%.
- Figure 5 corresponds to a concentration of 1% by weight in physiological saline
- Figure 6 corresponds to a concentration equimolar to that of benzocaine 1%.
- Figure 7 shows the anesthetic conduction activity of benzocaine and its derivatives of the HCl series, NH 2 (gly) p -benzocaine as a function of time and of the number p of glycine units at equimolar concentrations at 1% benzocaine.
- the family of anesthetics derived from benzocaine and symbolized by the formula NH 2 (gly) p -benzocaine has the following characteristics, when these compounds are injected at a molar concentration equivalent to 1% of benzocaine:
- the derivatives for which p is equal to 3 or 4 administered in solution both have a substantially identical pharmacological action, constant for 3 hours at around 100% of activity (100% of the animals tested being anesthetized ). After this period the anesthetic activity drops suddenly by 50% (half of the animals tested are no longer anesthetized) in 30 minutes and disappears completely in 1 hour - 1 hour and a half.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Genetics & Genomics (AREA)
- Biochemistry (AREA)
- Biophysics (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Molecular Biology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Life Sciences & Earth Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Peptides Or Proteins (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8903909A FR2644697B1 (fr) | 1989-03-24 | 1989-03-24 | Composes anesthesiques a duree d'action controlee et compositions pharmaceutiques les contenant |
| FR89/03909 | 1989-03-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1990011292A2 true WO1990011292A2 (fr) | 1990-10-04 |
| WO1990011292A3 WO1990011292A3 (fr) | 1990-11-15 |
Family
ID=9380039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1990/000197 Ceased WO1990011292A2 (fr) | 1989-03-24 | 1990-03-23 | Composes anesthesiques a duree d'action controlee et compositions pharmaceutiques les contenant |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0418365A1 (fr) |
| FR (1) | FR2644697B1 (fr) |
| WO (1) | WO1990011292A2 (fr) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB665675A (en) * | 1948-12-02 | 1952-01-30 | Ward Blenkinsop & Co Ltd | Process for the manufacture of derivatives of hydroxy acids |
| US2891091A (en) * | 1957-06-03 | 1959-06-16 | Canadian Patents Dev | Derivatives of para-aminosalicylic acid |
| FR1553098A (fr) * | 1967-11-30 | 1969-01-10 | ||
| AT331994B (de) * | 1972-12-05 | 1976-09-10 | Boehringer Mannheim Gmbh | Verfahren zur bestimmung von delta-glutamyltranspeptidase |
| CA1087075A (fr) * | 1977-08-05 | 1980-10-07 | Robert J. Gargiulo | Produit et methode de dosage de l'activite de la transferase et de la protease |
| JPS54157691A (en) * | 1978-06-01 | 1979-12-12 | Nitto Boseki Co Ltd | Novel substrate for measuring enzyme activity |
| JPS5569549A (en) * | 1978-11-16 | 1980-05-26 | Nitto Boseki Co Ltd | Novel substrate for determination of enzyme activity |
| JPS58172354A (ja) * | 1982-04-05 | 1983-10-11 | Dai Ichi Pure Chem Co Ltd | ペプチド誘導体 |
| DE3244030A1 (de) * | 1982-11-27 | 1984-05-30 | Behringwerke Ag, 3550 Marburg | Chromogene verbindungen, verfahren zu ihrer herstellung und ihre verwendung |
| EP0117089B1 (fr) * | 1983-02-03 | 1988-12-14 | The Regents Of The University Of California | Composés antagonistes bêta-adrénergiques et dérivés d'antagonistes bêta-adrénergiques |
| DE3428543A1 (de) * | 1984-08-02 | 1986-02-13 | Boehringer Mannheim Gmbh, 6800 Mannheim | Neue p-phenylendiamin-peptide und diese enthaltende reagenzien zur bestimmung von proteasen des blutgerinnungssystems |
| EP0195582B1 (fr) * | 1985-03-14 | 1990-01-24 | SMITH KLINE DAUELSBERG GmbH | Derivés de l'acide Amino-5 salicylique d'acide anti-inflammatoires non-steroiques |
-
1989
- 1989-03-24 FR FR8903909A patent/FR2644697B1/fr not_active Expired - Lifetime
-
1990
- 1990-03-23 WO PCT/FR1990/000197 patent/WO1990011292A2/fr not_active Ceased
- 1990-03-23 EP EP19900905561 patent/EP0418365A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2644697A1 (fr) | 1990-09-28 |
| FR2644697B1 (fr) | 1992-05-15 |
| EP0418365A1 (fr) | 1991-03-27 |
| WO1990011292A3 (fr) | 1990-11-15 |
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