AU1092601A - Aminoalkylenephosphonates for treatment of bone disorders - Google Patents
Aminoalkylenephosphonates for treatment of bone disorders Download PDFInfo
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- AU1092601A AU1092601A AU10926/01A AU1092601A AU1092601A AU 1092601 A AU1092601 A AU 1092601A AU 10926/01 A AU10926/01 A AU 10926/01A AU 1092601 A AU1092601 A AU 1092601A AU 1092601 A AU1092601 A AU 1092601A
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- AU
- Australia
- Prior art keywords
- aminoalkylenephosphonate
- alk
- pharmaceutically acceptable
- acceptable salt
- aminoalkylenephophonate
- 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.)
- Abandoned
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/66—Phosphorus compounds
- A61K31/675—Phosphorus compounds having nitrogen as a ring hetero atom, e.g. pyridoxal phosphate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/66—Phosphorus compounds
- A61K31/662—Phosphorus acids or esters thereof having P—C bonds, e.g. foscarnet, trichlorfon
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/66—Phosphorus compounds
- A61K31/683—Diesters of a phosphorus acid with two hydroxy compounds, e.g. phosphatidylinositols
- A61K31/685—Diesters of a phosphorus acid with two hydroxy compounds, e.g. phosphatidylinositols one of the hydroxy compounds having nitrogen atoms, e.g. phosphatidylserine, lecithin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P19/00—Drugs for skeletal disorders
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P19/00—Drugs for skeletal disorders
- A61P19/08—Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P19/00—Drugs for skeletal disorders
- A61P19/08—Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease
- A61P19/10—Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease for osteoporosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/12—Drugs for disorders of the metabolism for electrolyte homeostasis
- A61P3/14—Drugs for disorders of the metabolism for electrolyte homeostasis for calcium homeostasis
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- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Chemical & Material Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Rheumatology (AREA)
- Engineering & Computer Science (AREA)
- Epidemiology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Diabetes (AREA)
- Hematology (AREA)
- Obesity (AREA)
- Endocrinology (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
WO 01/28567 PCT/USOO/28713 AMINOALKYLENEPHOSPHONATES FOR TREATMENT OF BONE DISORDERS 5 This invention relates to the use of aminoalkylenephosphonates for treatment of bone disorders such as osteoporosis. This invention involves the use of 10 aminoalkylenephosphonates, such as, for example, 1,4,7,10 tetraazacyclododecane-1,4,7,10-tetramethylenephosphonic acid (DOTMP) and 3,6,9,15-tetraazabicyclo[9.3.1)tetradeca 1(15),11,13-triene-3,6,9-trimethylenephosphonic acid (PCTMP) for use in the inhibition of bone resorption. 15 This application is directed toward use in the prevention and/or treatment of bone diseases such as osteoporosis. Bone is a dynamic tissue, continually undergoing remodeling. Hydroxyapatite, the main inorganic constituent of bone, is constantly being deposited and 20 resorbed. In pathological states such as osteoporosis a shift in the balance of these two processes occurs, resulting in a net loss of mineralized tissue. This loss results in impaired skeletal function and clinical fractures. Osteoporosis is an enormous public health 25 problem affecting as many as 25 million people in the United States alone. It is a pervasive disease that has staggering costs to society in terms of morbidity, mortality, and economics. As the population becomes more aged, the magnitude of this problem will certainly become 30 greater. Currently only three drugs - estrogen, calcitonin, and alendronate are approved by the FDA for use in the treatment of osteoporosis. Both estrogen and calcitonin 35 have some drawbacks (for example, estrogen - risk of endometrial carcinoma, calcitonin - allergic reaction) and are not always successful. The recently approved 1 WO 01/28567 PCT/USOO/28713 bisphosphonate alendronate (4-amino-1 hydroxybutylidenebisphosphonate) is a member of a class of compounds that has received much attention for their potential in treating bone-related illnesses. 5 Bisphosphonates all contain the basic P-C-P structure. Examples such as etidronate (1-hydroxy ethylidenebisphosphonate), risedronate [1-hydroxy-2-(3 pyridinyl)ethylenebisphosphonate], pamidronate (3-amino-1 10 hydroxypropylidenebisphosphonate), tiludronate (4 chiorophenylthiomethylenebisphosphonate) have already been approved for the treatment of a rare bone condition called Paget's disease. 15 Aminoalkylenephosphonates have not been investigated for these applications. It is known that these compounds have a strong affinity for bone (for example, EDTMP and DOTMP radiopharmaceutical bone agents) and have low soft tissue localization. They have unique properties such as 20 the ability to inhibit calcium phosphate scale formation at very low concentrations. It has now been discovered that aminoalkylene phosphonates can inhibit bone mineral density loss. In 25 fact, a screening study of various aminomethylene phosphonates in an ovarectomized rat osteoporosis model has now shown that PCTMP is as good as, and may even be superior to, alendronate in its ability to inhibit bone mineral loss. 30 The present invention relates to a method for preventing or minimizing loss of bone mineral in mammals which method comprises administering to a mammal an amount of an aminoalkylenephosphonate which is effective to 35 prevent or minimize loss of bone mineral density. 2 WO 01/28567 PCT/USOO/28713 In another aspect, the present invention relates to the use of an aminoalkylenephophonate or a pharmaceutically acceptable salt thereof in the manufacture of a pharmaceutical formulation for preventing 5 or minimizing loss of bone mineral in mammals. The term "aminoalkylenephosphonate" as used herein refers to those phosphonates and phosphonic acids which incorporate an amine moiety, whether aliphatic or cyclic, 10 attached via the amine nitrogen through an alkylene group to the phosphonate or phosphonic acid moiety. The aminoalkylenephosphonates of the present invention should have at least one R-N(Alk-P0 3
H
2
)
2 group or at least two RR'N-Alk-P0 3
H
2 groups wherein R and R' can be, same or 15 different, aliphatic or cyclic moiety, and Alk is an alkylene group having from 1 to 4 carbon atoms. The amine moiety of the aminoalkylenephosphonates of the present invention represented by the R-N= and RR'N- in 20 the aforementioned R-N(Alk-P0 3
H
2
)
2 and RR'N-Alk-P0 3
H
2 groups is derived from either an aliphatic or a cyclic polyamine in which hydrogen atoms bonded to the nitrogen atom(s) in the amine moiety are partially or completely substituted by an alkylphoshonate group. Non-limiting examples of the 25 amines suitable as amine moieties in the practice of the present invention are ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetetraamine (TETA), 1,4,7,10-tetraazacyclododecane, 3,6,9,15-tetraaza bicyclo[9.3.1]tetradeca-1(15),11,13-triene, 2,11 30 diaza[3.3](2,6)pyridinophane, 2-(aminomethyl)pyridine, 2,6-bis(aminomethyl)pyridine. The alkylene group having from 1 to 4 carbon atoms contemplated by Alk in the aforementioned formulas can be 35 straight or branched chain alkylene group. Non-limiting examples of such alkylene groups are methylene, ethylene, 3 WO 01/28567 PCT/USOO/28713 propylene, isopropylene, and butylene. The preferred alkylene group is methylene (-CH 2 -) group. Preferred aminoalkylenephosphonates are 5 aminomethylenephosphonates. Particularly preferred aminoalkylenephosphonates are 1,4,7,10-tetraaza cyclododecane-1,4,7,10-tetramethylenephosphonic acid (DOTMP), 3,6,9,15-tetraazabicyclo[9.3.1]tetradeca 1(15),11,13-triene-3,6,9-trimethylenephosphonic acid 10 (PCTMP), N,N'-bis(methylenephosphonic acid)-2,11 diaza[3.3] (2,6)pyridinophane (BP2MP) and N,N-bis(methylene .phosphonic acid)-2-(aminomethyl)pyridine (AMPDMP). The aminoalkylenephosphonates contemplated by the 15 present invention are well known in the art and numerous methods for their preparation have been disclosed. See, for example, U.S. Patent No. 3,288,846 (Irani et al) and U.S. Patent No. 4,898,724 (Simon et al), both incorporated herein by reference. 20 The aminoalkylenephosphonates of the present invention are used in an amount effective to prevent or minimize loss of bone mineral. The effective amount will vary depending on the mammal, aminoalkylenephosphonate 25 used and the method of its administration (for example, oral or parenteral). A person of ordinary skill in the art will know how to determine the effective amount of aminoalkylene-phosphonate. 30 The aminoalkylenephosphonates of the present invention can be administered to a mammal on a daily or weekly regiment basis. Typically, for average 50 kg mammal, the effective weekly parenteral dose is in the range of from about 0.01 mg to about 500 mg, preferably 35 from about 0.1 mg to about 250 mg, most preferably from about 0.1 to about 70 mg. Typically, for average 50 kg 4 WO 01/28567 PCT/USOO/28713 mammal, the effective daily oral dose is in the range of from about 0.1 mg to about 40 g, preferably from about 0.1 mg to about 10 g, most preferably from about 0.1 to about 5 g. 5 In the practice of the present invention the aminoalkylenephosphonate may be administered per se or as a component of a pharmaceutically acceptable composition. 10 Thus, the present invention may be practiced with the aminoalkylenephosphonate being provided in pharmaceutical formulation, both for veterinary and for human medical use. Such pharmaceutical formulations comprise the active agent (the aminoalkylenephosphonate) together with one or 15 more pharmaceutically acceptable carriers thereof and optionally any other therapeutic ingredients. The carrier(s) must be pharmaceutically acceptable in the sense of being compatible with the other ingredient(s) in the formulation and not unsuitably deleterious to the 20 recipient thereof. The aminoalkylenephosphonate is provided in an effective amount, as described above, and in a quantity appropriate to achieve the desired dose. The formulations include those suitable for oral, 25 rectal, topical, nasal, ophthalmic, or parenteral (including subcutaneous, intramuscular, and intravenous) administration. Formulations may be prepared by any methods well known in the art of pharmacy. Such methods include the step of bringing the aminoalkylenephosphonate 30 into association with a carrier, which constitute one or more accessory ingredients. In general, the formulation may be prepared by uniformly and intimately bringing the aminoalkylenephosphonate into association with a liquid carrier, a finely divided solid carrier, or both, and 35 then, if necessary, shaping the product into desired formulation. In addition, the formulations of this 5 WO 01/28567 PCT/USOO/28713 invention may further include one or more accessory ingredient(s) selected from diluents, buffers, flavoring agents, binders, disintegrants, surface active agents, thickeners, lubricants, preservatives. 5 The following Examples are provided to illustrate the present invention, and should not be construed as limiting thereof. 10 Example 1 Eleven week old Female Sprague-Dawley laboratory rats (75) were fed a commercial rat diet and were allowed to drink water ad libitum. They were housed in pairs in an 15 air-conditioned environment, and were allowed to enjoy 14 hours of illumination per day. Ten rats were sham operated and were used as "non-osteopenic" control rats. All of the other rats were ovariectomized at 12 weeks of age. All surgeries were done under injectable anesthesia. 20 Ten of the ovariectomized rats were used as an "osteopenic but non-treated" control, and did not receive any phosphonate treatments. The remaining rats were given various phosphonate compounds in groups of ten. 25 Phosphonates (5 mg/kg) were administered subcutaneously (to insure better bioavailability). The rats were given doses three times during the first week and once a week thereafter. 30 Structures of the compounds tested are shown below in Figure 1. 6 WO 01/28567 PCT/USOO/28713 Figure 1. Structures of Compounds Tested (Example 1) 5 NIl N1, N I,-
PO
3 111 HN N N H,0,1P- -POH, N N ]0l' NN P311 \0PPP3H11 SPO' Hl Alendronate DOTMP PCTMP H2O 3 P-/ \-P0 3
H
2 H,0 3 P PO 3 H, H203P-PO 3
H
2
H-
2
O
3 P PO3H2 P0 3
H
2 DETA-Phosphonate EDTMP 10 Bone mineral density was determined by single photon absorptiometry while the rats were under injectable anesthesia. The distal femoral metaphysis of all rats were scanned at weekly intervals for ten weeks. 15 Figure 2 below shows the average drop in bone mineral density, normalized to the sham-operated control group, for the ovariectomized (OVX) control group and for the treatment groups. 7 WO 01/28567 PCT/USOO/28713 Figure 2. Average Chanqe in BMD (Normalized to sham-operated control = 0) 0.010 0.000 -0.010 -X(-- EDTMP E -0.020 -0- DETA .2 -0- DOTMP -0.030 ) -0-Alendronate M -0.040 --A- PCTMP -0.050 HAM -0.060 -0.070 -0.080 -- . . ..- -. 0 1 2 3 4 5 6 7 8 9 10 Week 5 As can be seen, relative to the sham-operated control, the OVX group loses bone mineral density (BMD) 10 over time. Three aminomethylenephosphonates, DOTMP, EDTMP, and DETA-Phosphonate, all lost more BMD than the OVX group (at this dose level). Both the alendronate and PCTMP groups maintained BMD. (Because of the difference in molecular weight, PCTMP was actually used at a lower 15 dose level than alendronate on a mole basis.) By week 10, there are three statistical groupings. The sham operated controls, alendronate, and PCTMP are all statistically equivalent. The ovariectomized controls are 20 in a group by themselves, as are the other three aminomethylenephosphonates. 8 WO 01/28567 PCT/USOO/28713 Example 2: A second study was undertaken to explore the effect of structural changes in PCTMP. The structures of the 5 compounds tested are shown below in Figure 3. Included in the study was DOTMP at one tenth the dose, that is, 0.5 mg/kg. All other compounds were dosed at 5 mg/kg. In this study, bone mineral density was determined by dual energy X-ray absorptiometry (DEXA). Other aspects of the 10 study were substantially the same as in Example 1. The results of the study are shown in Figure 4 below. Again, it can be seen that, relative to the sham operated controls, the OVX control group lost significant 15 BMD over the study period. As before, PCTMP shows an improvement over the OVX group. AMPDMP and BP2MP both look even better, but the best compound tested was DOTMP at 0.5 mg/kg. At this dose level it was equivalent to the sham-operated control. 20 9 WO 01/28567 PCT/USOO/28713 Figure 3. Structures of Compounds Tested N N N PO 3 112 N N U2O3P N P0 3 112 AMPDMP
PO
3 1 2 PCIMP N 112031 P0 3
H
2 N N rH-20 3 1) _ N P0 3 H2) 2O3P N N -,_NNPO 3 H2 H2 BAMPDMP BP2MP
H
2 0 3 P P0 3 11 2 N N ~N N"
H
2 0 3 P PO 3 H2 DOTMP 5 Figure 4. Average Change in BMD (Normalized to sham-operated control 0) 10 0.010 0.000 -0.010 10 -4-AMPDMP -4-- OVX -0.020 -A- BAMPTMP -Sham -0.030 --- DOTMP/1 0 -0- PCTMP -0.040-- BP2MP -0.050 -0.060 0 1 2 3 4 5 6 7 8 Week 10
Claims (18)
1. A method for preventing or minimizing loss of bone mineral in mammals which method comprises 5 administering to a mammal an amount of an aminoalkylenephosphonate or a pharmaceutically acceptable salt thereof which is effective to prevent or minimize loss of bone mineral density. 10
2. The method according to Claim 1 wherein said aminoalkylenephosphonate has at least one R-N(Alk-P0
3 H 2 ) 2 group wherein R can be an aliphatic or cyclic moiety, and Alk is an alkylene group having from 1 to 4 carbon atoms. 15 3. The method according to Claim 1 wherein said aminoalkylenephosphonate has at least two RR'N-Alk-P0 3 H 2 groups wherein R and R' can be, same or different, aliphatic or cyclic moiety, and Alk is an alkylene group having from 1 to 4 carbon atoms. 20
4. The method according to Claim 2 or Claim 3 wherein the amine moiety of the aminoalkylenephosphonate represented by the R-N= and RR'N- in the R-N(Alk-PO 3 H)2 and RR'N-Alk-P0 3 H 2 groups is derived from either an 25 aliphatic or a cyclic polyamine in which hydrogen atoms bonded to the nitrogen atoms in the amine moiety are partially or completely substituted by an alkylphoshonate group. 30
5. The method according to Claim 1 wherein said aminoalkylenephosphonate is an aminomethylenephosphonate.
6. The method according to Claim 1 wherein said aminoalkylenephosphonate is 3,6,9,15 35 tetraazabicyclo[9.3.1]tetradeca-1(15),11,13-triene-3,6,9 trimethylenephosphonic acid (PCTMP). 11 WO 01/28567 PCT/USOO/28713
7. The method according to Claim 1 wherein said aminoalkylenephosphonate is 1,4,7,10 tetraazacyclododecane-1,4,7,10-tetramethylenephosphonic 5 acid (DOTMP).
8. The method according to Claim 1 wherein said aminoalkylenephosphonate is N,N'-bis(methylenephosphonic acid)-2,11-diaza[3.3] (2,6)pyridinophane (BP2MP). 10
9. The method according to Claim 1 wherein said aminoalkylenephosphonate is N,N-bis(methylenephosphonic acid)-2-(aminomethyl)pyridine (AMPDMP). 15
10. The use of an aminoalkylenephophonate or a pharmaceutically acceptable salt thereof in the manufacture of a pharmaceutical formulation for preventing or minimizing loss of bone mineral in mammals. 20
11. The use of an aminoalkylenephophonate or a pharmaceutically acceptable salt thereof according to Claim 10 wherein said aminoalkylenephosphonate has at least one R-N(Alk-P0 3 H 2 ) 2 group wherein R can be an aliphatic or cyclic moiety, and Alk is an alkylene group 25 having from 1 to 4 carbon atoms.
12. The use of an aminoalkylenephophonate or a pharmaceutically acceptable salt thereof according to Claim 10 wherein said aminoalkylenephosphonate has at 30 least two RR'N-Alk-P0 3 H 2 groups wherein R and R' can be, same or different, aliphatic or cyclic moiety, and Alk is an alkylene group having from 1 to 4 carbon atoms.
13. The use of an aminoalkylenephophonate or a 35 pharmaceutically acceptable salt thereof according to Claim 11 or Claim 12 wherein the amine moiety of the 12 WO 01/28567 PCT/USOO/28713 aminoalkylenephosphonate represented by the R-N= and RR'N in the R-N(Alk-PO 3 H 2 ), and RR'N-Alk-P0 3 H 2 groups is derived from either an aliphatic or a cyclic polyamine in which hydrogen atoms bonded to the nitrogen atoms in the amine 5 moiety are partially or completely substituted by an alkylphoshonate group.
14. The use of an aminoalkylenephophonate or a pharmaceutically acceptable salt thereof according to 10 Claim 10 wherein said aminoalkylenephosphonate is an aminomethylenephosphonate.
15. The use of an aminoalkylenephophonate or a pharmaceutically acceptable salt thereof according to 15 Claim 10 wherein said aminoalkylenephosphonate is 3,6,9,15-tetraazabicyclo[9.3.1]tetradeca-1(15),11,13 triene-3,6,9-trimethylenephosphonic acid (PCTMP).
16. The use of an aminoalkylenephophonate or a 20 pharmaceutically acceptable salt thereof according to Claim 10 wherein said aminoalkylenephosphonate is 1,4,7,10-tetraazacyclododecane-1,4,7,10 tetramethylenephosphonic acid (DOTMP). 25
17. The use of an aminoalkylenephophonate or a pharmaceutically acceptable salt thereof according to Claim 10 wherein said aminoalkylenephosphonate is N,N' bis(methylenephosphonic acid)-2,11 diaza[3.3](2,6)pyridinophane (BP2MP). 30
18. The use of an aminoalkylenephophonate or a pharmaceutically acceptable salt thereof according to Claim 10 wherein said aminoalkylenephosphonate is N,N bis(methylenephosphonic acid)-2-(aminomethyl)pyridine 35 (AMPDMP). 13
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16001999P | 1999-10-18 | 1999-10-18 | |
US60160019 | 1999-10-18 | ||
PCT/US2000/028713 WO2001028567A2 (en) | 1999-10-18 | 2000-10-17 | Aminoalkylenephosphonates for treatment of bone disorders |
Publications (1)
Publication Number | Publication Date |
---|---|
AU1092601A true AU1092601A (en) | 2001-04-30 |
Family
ID=22575141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU10926/01A Abandoned AU1092601A (en) | 1999-10-18 | 2000-10-17 | Aminoalkylenephosphonates for treatment of bone disorders |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1225903A2 (en) |
JP (1) | JP2003512331A (en) |
CN (1) | CN1378454A (en) |
AU (1) | AU1092601A (en) |
CA (1) | CA2382877A1 (en) |
WO (1) | WO2001028567A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103687864A (en) * | 2011-06-17 | 2014-03-26 | 国家科研中心 | Bifunctional phosphonate chelating agents |
RU2527439C2 (en) * | 2011-10-24 | 2014-08-27 | Открытое акционерное общество "Полипласт" (ОАО "Полипласт") | Biocidal additive for concretes and mortars |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4937333A (en) * | 1989-08-04 | 1990-06-26 | The Dow Chemical Company | Method for purifying aminomethylenephosphonic acids for pharmaceutical use |
IL106159A0 (en) * | 1992-06-30 | 1993-10-20 | Dow Chemical Co | Targeted delivery of growth factors for bone regeneration |
US5385893A (en) * | 1993-05-06 | 1995-01-31 | The Dow Chemical Company | Tricyclopolyazamacrocyclophosphonic acids, complexes and derivatives thereof, for use as contrast agents |
US5714604A (en) * | 1993-05-06 | 1998-02-03 | The Dow Chemical Company | Process for the preparation of azamacrocyclic or acyclic aminophosphonate ester derivatives |
US5902825A (en) * | 1997-01-07 | 1999-05-11 | Mitreoak, Ltd. | Composition and method for the palliation of pain associated with diseases of the bone and bone joints |
-
2000
- 2000-10-17 EP EP00972234A patent/EP1225903A2/en not_active Withdrawn
- 2000-10-17 JP JP2001531397A patent/JP2003512331A/en active Pending
- 2000-10-17 CA CA002382877A patent/CA2382877A1/en not_active Abandoned
- 2000-10-17 WO PCT/US2000/028713 patent/WO2001028567A2/en not_active Application Discontinuation
- 2000-10-17 AU AU10926/01A patent/AU1092601A/en not_active Abandoned
- 2000-10-17 CN CN00814123A patent/CN1378454A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2001028567A2 (en) | 2001-04-26 |
CN1378454A (en) | 2002-11-06 |
JP2003512331A (en) | 2003-04-02 |
EP1225903A2 (en) | 2002-07-31 |
WO2001028567A3 (en) | 2001-11-29 |
CA2382877A1 (en) | 2001-04-26 |
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