WO1988005439A1 - Nouveaux types de biosondes froides comportant un cluster alcyne-metal carbonyle - Google Patents
Nouveaux types de biosondes froides comportant un cluster alcyne-metal carbonyle Download PDFInfo
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- WO1988005439A1 WO1988005439A1 PCT/FR1988/000045 FR8800045W WO8805439A1 WO 1988005439 A1 WO1988005439 A1 WO 1988005439A1 FR 8800045 W FR8800045 W FR 8800045W WO 8805439 A1 WO8805439 A1 WO 8805439A1
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- metal
- complexed
- complex
- carbonyl
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000001974 anti-anabolic effect Effects 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 150000001718 carbodiimides Chemical class 0.000 description 1
- 150000001728 carbonyl compounds Chemical class 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 150000003943 catecholamines Chemical class 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000013330 chicken meat Nutrition 0.000 description 1
- 229940126214 compound 3 Drugs 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 210000000172 cytosol Anatomy 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010511 deprotection reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 150000001983 dialkylethers Chemical class 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
- 238000007907 direct compression Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007336 electrophilic substitution reaction Methods 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 125000003500 enol ether group Chemical group 0.000 description 1
- 150000002085 enols Chemical class 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001076 estrogenic effect Effects 0.000 description 1
- ZRSDQBKGDNPFLT-UHFFFAOYSA-N ethanol;oxolane Chemical compound CCO.C1CCOC1 ZRSDQBKGDNPFLT-UHFFFAOYSA-N 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 238000006266 etherification reaction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003053 immunization Effects 0.000 description 1
- 238000002649 immunization Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 210000005053 lamin Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 229940050176 methyl chloride Drugs 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 239000012038 nucleophile Substances 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 150000002901 organomagnesium compounds Chemical class 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 235000003270 potassium fluoride Nutrition 0.000 description 1
- 239000011698 potassium fluoride Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 125000003186 propargylic group Chemical group 0.000 description 1
- 239000003586 protic polar solvent Substances 0.000 description 1
- 238000003127 radioimmunoassay Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000001612 separation test Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 230000009870 specific binding Effects 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- FKHIFSZMMVMEQY-UHFFFAOYSA-N talc Chemical compound [Mg+2].[O-][Si]([O-])=O FKHIFSZMMVMEQY-UHFFFAOYSA-N 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J51/00—Normal steroids with unmodified cyclopenta(a)hydrophenanthrene skeleton not provided for in groups C07J1/00 - C07J43/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F11/00—Compounds containing elements of Groups 6 or 16 of the Periodic Table
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
- C07F15/06—Cobalt compounds
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/531—Production of immunochemical test materials
- G01N33/532—Production of labelled immunochemicals
Definitions
- the field of the present invention is, in general, that of the use of carbonyl coordination complexes as cold bioprobes using the unique complex property of carbonyl metals, namely: the existence of bands Extremely intense CO in the region 2 100-1 850 cm -1 , in fact in the "window" left free in the proteins.
- This feature therefore makes the derivatives thus labeled usable for any analysis of mixtures of natural compounds.
- Fourier transform infrared spectroscopy (IR-FT) suitably adapted, ideally finds application in this type of problem.
- the development of the spectral method by IR-FT requires the specific synthesis of organometallic bioreagents presenting the best possible specifications of bioreagents.
- French patent application No. 82 16024 proposed estrogen complexes of carbonyl metals as cold bioprobes or tracers for the assay of hormone receptors by IR-FT.
- the present invention offers new types of cold bioprobes based on carbonyl coordination complexes exhibiting intense CO vibrators by the introduction of small alkynes-carbonyl metal clusters on the reagent to be assayed.
- Organometallic derivatives are thus obtained by regioselective alkylation using carbocations derived from alkynes complexed by a metal carbonyl complex (or carbonyl metals).
- the complexes obtained with these carbonyl alkynesmetal clusters are more stable than those obtained by direct compression without alkylation and above all now apply to substances other than estrogen complexes, in fact any substance having structures compatible with this organometallic chemistry.
- the new types of cold bioprobes according to the invention apply to estrogen compounds, as in patent application No. 82 16024 with the assay of hormone receptors, but also to the detection and assay immunological including toxins and anabolic substances.
- the synthesized estrogens can also serve as antigens in the context of immunoassays.
- Zeranol is an anabolic used for the growth of animals for which the EEC plans the next ban.
- the effectiveness of such a measure depends on the means of control available to verify that these prohibition measures are actually applied.
- the use of IR-FT can constitute an original, simple and effective method if we know how to make organometallic antigens capable of being "recognized” by anti-anabolic antibodies. These assays require judicious labeling of these substrates by selective alkylation using organometallic cations.
- the case of zearalenone and its derivatives also perfectly illustrates the above considerations. This product has low acute toxicity. It is used with its derivatives in the breeding of animals because of its estrogenic and anabolic effects.
- Zearalenone (a) and zearalenol (b) have the following structures, respectively:
- zearalenone (a) naturally pollutes moist cereals
- authorized estrogen anabolic zearalenol (b) is obtained by catalytic reduction of this mycotoxin (a).
- the use of zearalenol in the breeding of calves, lambs and chickens must be regulated in France and in the EEC where commissions aim to determine the thresholds of toxic and hormonal action of this product and to propose methods control analytics; the end being the health of the consumer.
- a radioimmunoassay is possible to measure the levels of serum zearalenol in children with early sexual maturity following a diet thus contaminated.
- the current detection threshold being 0.5 mg / ml, it is desirable to reach 25 pg / ml, but the radioimmunological method requires for the detection of traces the use of antibodies and radioactive tracers with high activity. specific difficult to access. This is why the present invention therefore proposes a new dosage of very small quantities of substances of biological interest such as, for example, zearalanol, achieving this sensitivity and avoiding the call to radioactivity, the drawbacks of which have been listed above.
- the chemistry of carbonyl metals provides an unprecedented answer to this problem.
- the goal is to achieve a lower cost, with better sensitivity and repeatability, a simple dosage for example of zearalanol in serum, animal tissues and food. This approach is directly transposable to other antigens and in particular to other food mycotoxins.
- alkynes-carbonyl metal clusters make it possible to synthesize organometallic bioreagents having, in addition to very good stability, a specific recognition power with respect to antibodies in the case of infrared "immuno-assay” (IR-IA) or to receptors in the case of hormonal assays, as well as intense CO vibrators by selective alkylation.
- IR-IA infrared immuno-assay
- These clusters offer, for example, the possibility of selective alkylation on ether functions of enols, with respect to an aromatic nucleus activated by donor substituents, in particular by using an organometallic cation complexed in the presence of hexamethyldisilazane and, hence, the possibility of final deprotection of the phenol function.
- these clusters offer the possibility of decoraplexation of alkynes-cobalt carbonyl precursors, which allows access, from the free acetylenic derivative, to other carbonyl metal complexes from groups VI, VII, VIII, IX of the Table. Periodic and therefore to use these cold bioprobes in analysis.
- the invention therefore generally relates to complexes of alkylated bioreagents complexed by an organometallic compound which, according to the essential characteristic of the invention, comprises a carbonyl metal alkyne ciuster.
- the alkyne consists of a propargyl derivative, the latter giving particularly alkylating and stable cations.
- bioreactive means any substance of biological interest.
- bioreactants of biological compounds comprising in particular at least one phenolic aromatic nucleus and / or at least one free ketone or hydroxy function on an aliphatic carbon and / or at least one amino, thiol or carboxy function. Indeed, by way of example, it is indicated that the alkylation-complexation can take place, in particular
- estrogens and estrogen derivatives in particular chosen from estradiols, estrones and their derivatives of formulas:
- bioreagents suitable for the invention of toxins and in particular zeranol, zeralone, zearalenone, zearalanol and their derivatives of formulas I, II, III and IV respectively:
- R and R ' represent hydrogen or a protective radical such as a hydroxalkoxy group.
- an organometallic compound of metals from groups VI, VII, VIII and IX of the periodic table in particular chromium, molybdenum, tungsten, manganese, cobalt, nickel, technetium, rhenium, osmium, ruthenium.
- the ligands of these organometallic compounds can be very varied, in particular CO, CS, CSe, CNR 1 , P (R 2 , R 3 , R 4 ), cyclopentadienyl, R 1 being in particular an alkyl radical or -COR 5 and R 2 , R 3 , R 4 and R 5 being in particular phenyl or phenoxy substituted or unsubstituted, alkyl or C 1 to C 7 substituted or unsubstituted alkoxy or else a halogen atom, R 5 may be -N (CH 2 CH 2 Cl) 2 .
- the metal-carbonyl compounds can contain several metals and up to 12 ligands.
- the invention also relates to a process for the preparation of bioreactive complex, characterized in that the bioreactor is reacted with an alkynic cation complexed with a metal carbonyl compound in the presence of tetrafluoroboric acid.
- the alkylation-complexation takes place selectively at the alpha of a ketone function or of a free hydroxy radical with respect to the aromatic nucleus and in a stereospecific manner.
- the ketone function is transformed into the form of enol ether.
- the enol ether function is reacted with an alkyne-carbonyl metal cation in the presence of hexamethyldisilazane (HMDS).
- HMDS hexamethyldisilazane
- an advantageous solvent is methylene chloride.
- the complexed carbocations according to the invention, it is possible to complex a second time temporarily with solvents comprising heteroatoms, such as pyridine, sulfides, etc., the carbocation already complexed with the metal car bony le.
- solvents comprising heteroatoms, such as pyridine, sulfides, etc.
- Protic solvents can then be used.
- Decomplexation of the triple bond of the complex takes place by the action of ferric salts in ethanol.
- the alkylation-complexation according to the invention can take place on the aliphatic carbon even carrying a hydroxy or ketone function, for example in the case of the zeranol and zearalenol derivatives in position 7.
- the compound is reacted, for example the zeralone or zearalenone on an acetylenic organomagnesium compound in order to obtain in this case in position 7 an ethynyl zeranol or zearalenol, the phenol functions are released, then the CC triple bond is complexed with a metal-carbonyl.
- a triple bond distant from several atoms of the ketone function for example in the case of zeralone or zearalenone of position 7 by transforming the ketone function into acid oxime, in particular with the carboxy-methyloxime (CMO) arm and by coupling the amide link type with the amine of an amine-alkyne, for example a propargyl amine. Complexation with a metal-carbonyl then takes place on the triple bond.
- CMO carboxy-methyloxime
- this carboxy-methyl oxime arm also called CMO arm
- the compound and the labeling element that is to say the alkyne-metal-carbonyl ciuster
- antibodies are often prepared from immunogen in which the coupling between the hapten compound and the vector protein is carried out using this CMO arm.
- the subject of the invention is also the application of the complexes obtained for assays of antigens and antibodies by IR-IA and of biological receptors by the method already described in patent No. 82 16024.
- estradiol receptors which has a high recognition power with respect to estradiol receptors (RBA - 35%).
- alpha position denotes regiospecificity with respect to an adjacent carbon
- alpha 'or beta' relate to different stereospecificities on the same carbon and denote faces.
- reaction is regioselective and stereospecific since the orientation of the attack exclusively leads to the product 16 alpha '.
- R CH 2 OCH 3 0.3 g (1.65 mmol.) Of Na N (SiMe 3 ) 2 are dissolved in 5 ml of THF (previously distilled on sodium, benzophenone) at room temperature. 0.24 g (0.75 mmol.) Of methylmethoxy-ether-estrone are added in solution in 3 ml of THF. The mixture is stirred for 20 minutes and then 0.4 ml of chlorotrimethylsilane are added. After 25 minutes, the solvent is evaporated, taken up in diethyl ether and poured into water. The ethereal solution is washed with a saturated NaHCO solution. then with water until neutral.
- the cation (9) is prepared in ether from 0.24 g (0.75 mmol.) Of complexed propargyl alcohol and of the ethereal complex of tetrafluoroboric acid. (9) is thoroughly washed with ether and then dried under vacuum and suspended in 5 ml of methylene chloride. The enol ether with 2 equivalents of HMDS is added at 0 ° C. dissolved in 3 ml of methylene chloride. The reaction is immediate. After 15 minutes, the brick-red solution is poured into water, washed with NaHCO-, then with water until neutral pH, dried over magnesium sulfate. The solvent is evaporated. In thin layer chromatography on silica, a majority red spot is observed (Rf 0.50 for ether 1, pentane 4).
- HEXACARBONYLOESTRADIOL (16) 0.08 g of (1 1) are dissolved in 5 ml of absolute ethanol and 0.07 g of NaBH 4 is added . The mixture is stirred overnight, after 16 hours water is added and left for 2 hours. A white precipitate appears. The whole is extracted with methylene chloride, washed with a hydrochloric acid solution then neutralized and dried. The solvent is evaporated. The crude product is chromatographed on silica plates (ether 1, pentane 1). Two products are separated. One no longer has acetylenic proton in NMR but there are vinyl protons in the spectrum. The other still has an acetylene proton, in the infrared the ketone band has disappeared.
- the acetylene product crystallizes (mass M + 35H M + H + 355, M + NH 4 + 372), 0.035 g are dissolved in 1 ml of CH 2 Cl 2 and 0.045 g of cobalt octacarbonyl are added. After 2 hours the solvent is evaporated, the residue is taken up in pentane to which a few drops of ether are added. The solution is filtered on a short florisil column. The solvent is evaporated and the product chromatography on a silica plate (eluent ether). The red band is recovered (16c). (16c), about 0.07 g, is dissolved in 3 ml of a 1: 1 ethanol-THF mixture.
- the two alpha 'and beta isomers are separated by chromatography on a silica plate.
- the phenol functions are released by the action of potassium fluoride.
- alpha 'and beta' can then be complexed with carbonyl metals.
- the non-complexed derivatives (28a and 28b) are easily obtained from zeralone (23a) and zearalenone (23b) by the action of carboxymethoxylamine in pyridine, the acid oxime obtained is then coupled to the propargyl amine by the conventional method ( hydroxy succinimide and carbodiimide in THF followed by the addition of the propargyl amine in the presence of triethylamine).
- the complexation is carried out according to the usual methods and the products purified by chromatography on a silica column (eluent CH 2 Cl 2 ) are identified with NMR, 1 H and mass.
- PROPARGYLAMIDE-METHYLOXIME 7 'ZERALONE 4 (See diagram 1) 200 mg (0.5 mmol) of carboxymethyloxime 7' zeralone (compound 3) are dissolved in 23 ml of THE and stirred 1/4 hour at 4oC. 67 mg (0.59 mmol) of N hydrosuccinimide are added thereto, as is a solution containing 160 mg (0.75 mmol) of NN'dicyclohexylcarbodiimide dissolved in 4 cc of THE. The solution is thus stirred 4 hours at 4 ° C and then 20 hours at room temperature. A white precipitate is formed. After filtration, the solution is returned to 4 ° C. and 65 ⁇ l (1 mmol) of propargylamine and 520 ⁇ l (3.5 mmol) of triethylamine are added thereto. The mixture is left stirring for 4 hours at 4 ° C., then 20 hours at room temperature.
- the product analyzed is a mixture of the two Z and E isomers of oxime.
- the affinity of the modified hormones for the estradiol receptor is determined by a competition test between these hormones and the tritiated estradiol. For this, cytosol fractions (supernatant
- Binding Affinity which is the ratio X 100 of the concentration of nonradioactive estradiol displacing 50% of the specific binding of estradiol to its receptor on the molarity of modified hormone displacing 50% of this binding. The greater the value of RBA is high plus the hormone to be tested has affinity for the estradiol receptor.
- Cation (9) also easily reacts with sulfides such as dimethyl sulfide in methylene chloride to yield a sulfonium ion (9 ') which is quantitatively isolated from (9).
- This sulfonium ion is soluble and stable in CH 2 Cl 2 , acetone, acetonitrile, while (9) reacts on acetone and acetonitrile. In these solvents, it hydrolyzes slowly to give complexed propargyl alcohol. In methanol and ethanol, this modified carbenium ion (9 ′) is soluble and gives an alcoholysis reaction which requires more than ten minutes to be complete while (9) reacts almost instantaneously with these alcohols, Under these conditions ( 9 ') can advantageously be used for propargylation reactions of primary and secondary amines including in protic media.
- Another method of amino propargylation is the use of the cation (9 ") which involves a change of metal.
- the reaction can take place in other solvents, in particular ethanol or methanol.
- the reaction must then be brought to a lower temperature of the order of -15 to -20 °, for example 10 mg of cation is added in solution in 1 ml of ethanol, the whole is prepared at -15 ° C.
- 0.2 ml of isopropylamine dissolved in 0.5 ml of ethanol is added dropwise. The reaction is immediate, it rises to room temperature and the solvent is evaporated.
- This new carbocation makes it possible to alkylate the thiol functions, in particular in the form of thiolate.
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Urology & Nephrology (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Microbiology (AREA)
- Cell Biology (AREA)
- Food Science & Technology (AREA)
- Biotechnology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Steroid Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR87/00914 | 1987-01-27 | ||
FR8700914A FR2610113B1 (fr) | 1987-01-27 | 1987-01-27 | Nouveaux types de biosondes froides comportant un cluster alcyne-metal carbonyle |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1988005439A1 true WO1988005439A1 (fr) | 1988-07-28 |
Family
ID=9347297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1988/000045 WO1988005439A1 (fr) | 1987-01-27 | 1988-01-27 | Nouveaux types de biosondes froides comportant un cluster alcyne-metal carbonyle |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0299045A1 (fr) |
JP (1) | JPH01502663A (fr) |
FR (1) | FR2610113B1 (fr) |
WO (1) | WO1988005439A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5468644A (en) * | 1991-05-09 | 1995-11-21 | British Technology Group Limited | Spectroscopic investigation using organometallic compounds |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0105785A1 (fr) * | 1982-09-23 | 1984-04-18 | Etablissement Public dit: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS) | Complexes organométalliques d'oestrogènes et leur application au dosage des récepteurs hormonaux |
-
1987
- 1987-01-27 FR FR8700914A patent/FR2610113B1/fr not_active Expired
-
1988
- 1988-01-27 WO PCT/FR1988/000045 patent/WO1988005439A1/fr not_active Application Discontinuation
- 1988-01-27 EP EP19880901420 patent/EP0299045A1/fr not_active Ceased
- 1988-01-27 JP JP50147388A patent/JPH01502663A/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0105785A1 (fr) * | 1982-09-23 | 1984-04-18 | Etablissement Public dit: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS) | Complexes organométalliques d'oestrogènes et leur application au dosage des récepteurs hormonaux |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5468644A (en) * | 1991-05-09 | 1995-11-21 | British Technology Group Limited | Spectroscopic investigation using organometallic compounds |
Also Published As
Publication number | Publication date |
---|---|
FR2610113B1 (fr) | 1989-05-12 |
FR2610113A1 (fr) | 1988-07-29 |
JPH01502663A (ja) | 1989-09-14 |
EP0299045A1 (fr) | 1989-01-18 |
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