WO2016195020A1 - 水性液剤 - Google Patents
水性液剤 Download PDFInfo
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- WO2016195020A1 WO2016195020A1 PCT/JP2016/066410 JP2016066410W WO2016195020A1 WO 2016195020 A1 WO2016195020 A1 WO 2016195020A1 JP 2016066410 W JP2016066410 W JP 2016066410W WO 2016195020 A1 WO2016195020 A1 WO 2016195020A1
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- 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
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/47—Quinolines; Isoquinolines
- A61K31/4709—Non-condensed quinolines and containing further heterocyclic rings
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/08—Solutions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
Definitions
- the present invention relates to an aqueous liquid preparation. More specifically, the present invention relates to an aqueous liquid preparation comprising a solution containing a compound represented by the general formula (1) (hereinafter also referred to as a compound of the formula (1)) or a salt thereof, and a magnesium compound.
- a compound represented by the general formula (1) hereinafter also referred to as a compound of the formula (1)
- a magnesium compound hereinafter also referred to as a compound of the formula (1)
- R 1 represents a hydrogen atom, a halogen atom, an amino group, a cyano group, or an alkyl group having 1 to 3 carbon atoms which may be substituted with one or more hydroxyl groups
- R 2 represents a hydrogen atom, halogen An alkyl group having 1 to 3 carbon atoms, a hydrogen atom, a halogen atom, a hydroxyl group or an amino group which may be substituted with one or more atoms, an amino group, a cyano group or a hydroxyl group
- R 3 represents a hydrogen atom or a halogen atom
- R 4 represents a hydrogen atom or a halogen atom
- X represents a halogen atom.
- quinolonecarboxylic acid derivative is a compound having a safe and strong antibacterial action, and further, methicillin-resistant Staphylococcus aureus (MRSA), penicillin-resistant pneumococci (PRSP), vancomycin-resistant enterococci (VRE) and other resistant bacteria are known to exhibit strong antibacterial activity (Patent Document 1).
- MRSA methicillin-resistant Staphylococcus aureus
- PRSP penicillin-resistant pneumococci
- VRE vancomycin-resistant enterococci
- Patent Documents 2 to 7 describe an aqueous liquid preparation containing a quinolonecarboxylic acid derivative as a main drug and a neutral administration liquid. These documents describe formulations in which the main agent is prevented from being precipitated and solubilized by adding a polyvalent metal such as magnesium to the solution (Patent Documents 2 to 7).
- Patent Documents 8 to 9 describe a lyophilized preparation containing quinolone carboxylic acid and a preparation comprising a diluting liquid containing a polyvalent metal compound. Note that the quinolone carboxylic acid derivatives described in Patent Documents 2 to 9 do not have a cyclopropylaminomethyl structure.
- An object of the present invention is to provide a novel aqueous liquid preparation containing the compound of formula (1) or a salt thereof, wherein precipitation or chemical decomposition of the compound of formula (1) or a salt thereof is suppressed.
- the inventors of the present invention have been studying the formulation of an aqueous solution containing the compound of formula (1) or a salt thereof, and the cyclopropylaminomethyl structure contained in the compound of formula (1) is chemically decomposed. It was easily found that a compound represented by the general formula (2) (hereinafter also referred to as “compound of formula (2)”) in which the cyclopropyl group was eliminated was generated. (Wherein R 1 , R 2 , R 3 and X are as defined above).
- the present inventors adjust the solution containing the specific amount of the compound of formula (1) or a salt thereof and the magnesium compound so as to be in a specific pH range, thereby adjusting the compound of the formula (1) or a salt thereof. It was found that the precipitation of and the decomposition of the compound of formula (1) can be suppressed, and the present invention was completed.
- the present invention will be described in further detail as follows.
- R 1 represents a hydrogen atom, a halogen atom, an amino group, a cyano group, or an alkyl group having 1 to 3 carbon atoms which may be substituted with 1 or 2 or more
- R 2 represents a hydrogen atom, a halogen atom, An alkyl group having 1 to 3 carbon atoms, a hydrogen atom, a halogen atom, a hydroxyl group or an amino group which may be substituted with one or more amino groups, cyano groups or hydroxyl groups
- R 3 represents a hydrogen atom or halogen atom
- 4 represents a hydrogen atom or a halogen atom
- X represents a halogen atom
- the aqueous liquid agent whose density
- [2] The aqueous liquid according to [1], which is used by diluting so that the concentration of the compound represented by the general formula (1) is 2 mg / mL or less when used.
- [3] The aqueous liquid preparation according to [1] or [2], which contains a hydrochloride of the compound represented by the general formula (1).
- [4] The aqueous solution according to any one of [1] to [3], wherein the molar ratio of the magnesium compound to the compound represented by the general formula (1) or a salt thereof is 0.45 or more and 1.5 or less. Liquid drug.
- [5] The aqueous liquid according to any one of [1] to [4], wherein the pH of the aqueous liquid is from 5.8 to 6.5.
- R 1 represents a hydrogen atom, a halogen atom, an amino group, a cyano group, or an alkyl group having 1 to 3 carbon atoms which may be substituted with 1 or 2 or more
- R 2 represents a hydrogen atom, a halogen atom, An alkyl group having 1 to 3 carbon atoms, a hydrogen atom, a halogen atom, a hydroxyl group or an amino group which may be substituted with one or more amino groups, cyano groups or hydroxyl groups
- R 3 represents a hydrogen atom or halogen atom
- 4 represents a hydrogen atom or a halogen atom
- X represents a halogen atom
- step (A) Step of adding a pH adjuster to an aqueous solution of the magnesium compound
- step (B) Step of adding the compound represented by the general formula (1) or a salt thereof to the aqueous solution obtained in the step (A) [10]
- step (C) It was obtained in step (D) or step (C) in which the compound represented by the general formula (1) or a salt thereof was dissolved or suspended in water while heating at 30 ° C. or higher and 80 ° C. or lower. Adding a magnesium compound and a pH adjuster to an aqueous solution or suspension
- the general formula (1) (In the formula, R 1 represents a hydrogen atom, a halogen atom, an amino group, a cyano group, or an alkyl group having 1 to 3 carbon atoms which may be substituted with 1 or 2 or more, and R 2 represents a hydrogen atom, a halogen atom, An alkyl group having 1 to 3 carbon atoms, a hydrogen atom, a halogen atom, a hydroxyl group or an amino group which may be substituted with one or more amino groups, cyano groups or hydroxyl groups; R 3 represents a hydrogen atom or halogen atom; 4 represents a hydrogen atom or a halogen atom, X represents a halogen atom) or a salt thereof, and a magnesium compound, pH is 5.8 or more and 6.9 or less,
- the concentration of the compound represented by the general formula (1) relates to an aqueous liquid preparation of 3 mg / mL or more.
- the “magnesium compound” described in the present specification is a compound containing magnesium.
- the magnesium compound include inorganic magnesium salts such as magnesium chloride, magnesium sulfate, magnesium nitrate, and magnesium phosphate, or organic magnesium salts such as magnesium citrate, magnesium gluconate, magnesium acetate, and magnesium propionate.
- inorganic magnesium salts such as magnesium chloride, magnesium sulfate, magnesium nitrate, and magnesium phosphate
- organic magnesium salts such as magnesium citrate, magnesium gluconate, magnesium acetate, and magnesium propionate.
- a preferred magnesium compound is an inorganic magnesium salt, and particularly preferred is magnesium chloride.
- aqueous liquid agent is a liquid preparation containing water as a base.
- an injectable preparation for example, an ophthalmic liquid, an aqueous nasal drop, an aqueous ear drop, an inhalation liquid Is mentioned.
- injection preparation is a sterile preparation that is directly administered to a body tissue / organ such as subcutaneous, intramuscular or blood vessel.
- the “dilution liquid” described in the present specification is a solvent or solution used for diluting an aqueous solution, and any solvent or solution that is not harmful when the solvent or solution is administered to a patient.
- Means solution examples of the solvent or solution that can be used as a diluting solution include water, physiological saline, Ringer's solution, glucose solution, lactated Ringer's solution, acetated Ringer's solution, bicarbonated Ringer's solution, maltose solution, and xylitol solution. You may make it use 1 type (s) or 2 or more types among these solvents or solutions as a liquid for dilution. Particularly preferred as the diluting solution is physiological saline.
- the aqueous liquid according to this embodiment is diluted with a diluting solution so that the concentration of the compound of formula (1) in the aqueous liquid according to this embodiment is 2 mg / mL or less. It is preferable. More preferable concentration of the compound of formula (1) when administered is 0.5 mg / mL or more and 2 mg / mL or less, and more preferable concentration of compound of formula (1) when administered is 1 mg / mL or more and 2 mg / mL or less. .
- halogen atom described in the present specification represents a fluorine atom, a chlorine atom, a bromine atom or an iodine atom, and a fluorine atom is preferred.
- an alkyl group having 1 to 3 carbon atoms refers to a methyl group, an ethyl group, a propyl group, or a 2-propyl group.
- the compound of formula (1) can be produced, for example, by the method described in International Publication No. 2005/026147 pamphlet.
- the compound of the formula (1) contained in the aqueous liquid preparation of this embodiment is preferably 7- [3- ⁇ (cyclopropylamino) methyl ⁇ -4-fluoropyrrolidin-1-yl] -6-fluoro-1- ( 2-fluoroethyl) -8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid, and more preferably 7-[(3S, 4S) -3- ⁇ (cyclopropylamino) methyl ⁇ -4-fluoropyrrolidin-1-yl] -6-fluoro-1- (2-fluoroethyl) -8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid.
- the aqueous liquid preparation of the present embodiment preferably contains a salt of the compound of formula (1) from the
- Salts of the compound of formula (1) include salts with inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid, maleic acid, fumaric acid, succinic acid, malic acid, malonic acid, methanesulfonic acid, toluenesulfone Acid, benzenesulfonic acid, lactic acid, oxalic acid, acetic acid, trifluoroacetic acid, salt with organic acid such as tartaric acid, or sodium, potassium, magnesium, calcium, aluminum, cesium, chromium, cobalt, copper, iron, zinc, platinum And salts with metals such as silver.
- hydrochloride is particularly preferable from the viewpoint of stability.
- the pH of the aqueous liquid preparation of the present embodiment needs to be 5.8 or more and 6.9 or less in that the precipitation of the compound of formula (1) or a salt thereof is suppressed during storage of the aqueous liquid preparation. There is. Furthermore, it is preferable to dilute the aqueous solution with a diluting solution before administration to the patient. However, the aqueous solution of the present embodiment is suppressed in precipitation of the compound (1) or a salt thereof at the time of dilution.
- the pH of is preferably 5.8 or more and 6.5 or less.
- the compound of formula (1) or a salt thereof is easily chemically decomposed, and in addition to the compound of formula (2), a structure-undetermined compound (hereinafter referred to as byproduct X) that is difficult to purify is generated.
- the concentration of the compound represented by the formula (1) in the aqueous liquid preparation of this embodiment is preferably 3 mg / mL or more.
- the concentration of the compound represented by the formula (1) in the aqueous liquid preparation of the present embodiment include 20 mg / mL, 30 mg / mL, and 40 mg / mL.
- concentration of the compound represented by the formula (1) in the aqueous liquid preparation means that the weight (mg) of the compound of the formula (1) contained in the aqueous liquid preparation is divided by the solvent amount (mL) of the aqueous liquid preparation. This is the value obtained.
- a value (mg) obtained by converting the weight (mg) of the salt of the compound of formula (1) into the weight of the compound of formula (1) is the amount of solvent (mL). The value obtained by dividing by.
- the usage-amount of a magnesium compound is not specifically limited, From the point which raises the solubility to the water of a formula (1) compound or its salt, and suppresses precipitation, and the point which suppresses the production
- the molar ratio of the magnesium compound to the compound or a salt thereof is preferably 0.35 or more. More preferably, it is 0.40 or more, still more preferably 0.45 or more, and still more preferably 0.70 or more.
- the “molar ratio of the magnesium compound to the compound of the formula (1) or a salt thereof” is a value represented by the following formula.
- Molar ratio of magnesium compound to formula (1) compound or salt thereof number of moles of magnesium compound contained in aqueous solution (mol) / number of moles of compound of formula (1) or salt thereof contained in aqueous solution ( mol)
- the “molar ratio of the magnesium compound to the compound of formula (1) or a salt thereof” is preferably 3.0 or less. More preferably, 1.5 or less is mentioned, More preferably, 1.1 or less is mentioned.
- the “molar ratio of the magnesium compound to the compound of formula (1) or a salt thereof” is particularly preferably 0.45 or more and 1.5 or less, and more preferably 0.70 or more and 1.1 or less.
- the “pH adjuster” described in the present specification includes an acid, a base, or a buffer.
- a pH adjuster hydrochloric acid, sulfuric acid, adipic acid or its salt, citric acid or its salt, gluconic acid or its salt, succinic acid or its salt, ascorbic acid or its salt, glacial acetic acid or its salt, acetic acid or its Salt, tartaric acid or salt thereof, fumaric acid or salt thereof, maleic acid or salt thereof, lactic acid or salt thereof, malic acid or salt thereof, phosphoric acid or salt thereof, glycine, sodium hydrogen carbonate, sodium carbonate, sodium hydroxide, or A magnesium hydroxide is mentioned.
- pH adjusters one or more pH adjusters may be used.
- Preferred pH adjusting agents include hydrochloric acid or sodium hydroxide, and more preferred pH adjusting agents include hydrochloric acid and sodium hydroxide. By using these pH adjusters, the pH can be adjusted to an appropriate range.
- the content of the compound represented by the general formula (1) in the aqueous liquid preparation of the present embodiment is preferably 500 mg or less. More preferably, it is 10 mg or more and 450 mg or less, More preferably, 20 mg or more and 400 mg or less, More preferably, 30 mg or more and 200 mg or less, More preferably, 50 mg or more and 160 mg or less are mentioned.
- the content of the compound represented by the general formula (1) is the weight of the salt of the compound represented by the general formula (1) when the salt of the compound represented by the general formula (1) is contained ( mg) is a value (mg) converted to the weight of the compound represented by the general formula (1).
- the aqueous liquid preparation of the present embodiment is preferably produced by the method described as the general production method 1 or the method described as the general production method 2.
- the magnesium compound is dissolved in a physiologically acceptable carrier such as water, physiological saline, Ringer's solution, dextrose solution, lactated Ringer's solution, acetated Ringer's solution, bicarbonated Ringer's solution, maltose solution or xylitol solution.
- a physiologically acceptable carrier such as water, physiological saline, Ringer's solution, dextrose solution, lactated Ringer's solution, acetated Ringer's solution, bicarbonated Ringer's solution, maltose solution or xylitol solution.
- a physiologically acceptable carrier such as water, physiological saline, Ringer's solution, dextrose solution, lactated Ringer's solution, acetated Ringer's solution, bicarbonated Ringer's solution, maltose solution or xylitol solution.
- the compound of formula (1) or a salt thereof is added.
- the pH of the solution may be further adjusted by a step of adding a pH adjusting agent to the solution, or the amount of the solution may be adjusted by a step of adding a physiologically acceptable carrier to the solution.
- the compound of formula (1) or a salt thereof is dissolved or suspended in a physiologically acceptable carrier such as water, physiological saline, Ringer's solution, glucose solution, lactated Ringer's solution, Ringer's acetate solution, Ringer's bicarbonate solution, maltose solution or xylitol solution. It becomes cloudy.
- a physiologically acceptable carrier such as water, physiological saline, Ringer's solution, glucose solution, lactated Ringer's solution, Ringer's acetate solution, Ringer's bicarbonate solution, maltose solution or xylitol solution. It becomes cloudy.
- the solution or suspension may be heated.
- the temperature of the solution or suspension is preferably 30 ° C. or higher and 80 ° C. or lower, more preferably 30 ° C. or higher and 70 ° C. or lower, and particularly preferably 30 ° C. or higher and 50 ° C. or lower.
- the aqueous liquid preparation of the present embodiment having a pH of 5.8 or more and 6.9 or less and a concentration of the compound represented by the general formula (1) in the aqueous liquid preparation of 3 mg / mL or more is obtained. Can do.
- NMR spectra were measured using a JEOL JNM-EX400 type nuclear magnetic resonance apparatus and using tetramethylsilane (TMS) as an internal standard.
- MS spectra were measured by JEOL JMS-T100LP and JMS-SX102A mass spectrometers. Elemental analysis was performed with Yanaco analysis CHN CORDER MT-6 elemental analyzer. Powder X-ray diffraction was performed using RINT2200 manufactured by Rigaku Corporation. Using copper radiation as radiation, the measurement conditions were tube current 36 mA, tube voltage 40 kV, divergence slit 1 degree, scattering slit 1 degree, light receiving slit 0.15 mm, scanning range 1 to 40 degrees (2 ⁇ ), scanning speed 2 per minute. Degree (2 ⁇ ).
- the precipitated crystals were collected by filtration and washed with 6.93 L of acetone and 13.9 L of diisopropyl ether to obtain 7.41 kg of wet crystals.
- the wet crystals were dried under reduced pressure at a preset temperature of 65.0 ° C. for about 20 hours, and bis (acetato-O)- ⁇ 6,7-difluoro-1- (2-fluoroethyl) -8-methoxy-4-oxo-1 , 4-dihydroquinoline-3-carboxylato-O 3 , O 4 ⁇ boron was obtained in an amount of 6.47 kg (yield 90.3%).
- the reaction solution was subjected to bis (acetato-O) ⁇ 6,7-difluoro-1- (2-fluoroethyl) -8-methoxy-4-oxo-1,4-dihydroquinoline at 23.0 to 26.3 ° C.
- 3-Carboxylato-O 3 , O 4 ⁇ Boron 6.00 kg (14.0 mol) was added, and the mixture was stirred at 23.7 to 26.3 ° C. for 2 hours.
- 120 L of ethyl acetate was added to the reaction solution, and 120 L of normal water was further added.
- the mixture was heated at an external temperature of 55.0 ° C., dissolved (confirmed dissolution at 47.1 ° C.), cooled and crystallized. Stir the mixture at 39.9-41.0 ° C for 30 minutes and after cooling (guideline: set temperature to 7.0 ° C up to 20.0 ° C, -10.0 ° C below), 2 The mixture was stirred at 2 to 10.0 ° C for 1 hour.
- This solution was filtered through a filter and washed with a mixed solvent of 24.0 L of ethanol and 1.20 L of purified water. After confirming dissolution, 96.0 L of heated ethanol (99.5) was added to the solution at 71.2-72.6 ° C. The solution was cooled (warm water set temperature 60.0 ° C.), and after confirmation of crystallization (crystallization temperature 61.5 ° C.), the solution was stirred at 59.4 to 61.5 ° C. for 30 minutes.
- Cool the solution in stages (warm water set temperature 40.0 ° C to 50.0 ° C, warm water set temperature 30.0 ° C to 30.0 ° C, warm water set temperature 200.0 0 ° C to 20.0 ° C, set temperature 7.0 ° C, 15.0 ° C to set temperature -10.0 ° C, and then stored) 1 at 4.8 to 10.0 ° C Stir for hours.
- FIGS. 1 and 2 The result of the powder X-ray diffraction of the compound (1) based on International Publication No. 2013/069297 is shown in FIGS.
- a typical peak can be confirmed.
- Particularly characteristic peaks can be confirmed at 10.8 degrees, 12.9 degrees, and 24.7 degrees.
- Example 1 (Relationship between pH and stability) (Example 1) According to the formulation shown in Table 1, 920 mg of magnesium chloride hexahydrate was dissolved in water for injection, 8 mL of 0.1 mol / L sodium hydroxide aqueous solution was added, and 4.332 g of compound (1) was added and dissolved. 0.1 mol / L hydrochloric acid and 0.1 mol / L sodium hydroxide aqueous solution were added to this liquid, and it adjusted to pH5.8. Water for injection was added to this solution to make a total volume of 100 mL. The pH after adjusting the liquid volume was 5.8. In addition, the water for injection used the water for injection defined by the 16th revision Japanese Pharmacopoeia (hereinafter the same).
- Example 2 According to the formulation shown in Table 1, 920 mg of magnesium chloride hexahydrate was dissolved in water for injection, 8 mL of 0.1 mol / L sodium hydroxide aqueous solution was added, and 4.332 g of compound (1) was added and dissolved. 0.1 mol / L hydrochloric acid and 0.1 mol / L sodium hydroxide aqueous solution were added to this liquid, and it adjusted to pH 6.9. Water for injection was added to this solution to make a total volume of 100 mL. The pH after adjusting the liquid volume was 6.9.
- Test Example 1 The aqueous solutions prepared in Examples 1 and 2 and Comparative Examples 1 and 2 were subjected to pH measurement and appearance observation. External observation was performed before storage (immediately after preparation; the same applies hereinafter) and after storage of each solution at 5 ° C. for 1 week.
- pH measurement method Measured according to the pH measurement method of the Japanese Pharmacopoeia General Test Method.
- Appearance observation method Observation was performed using a foreign substance inspection device (illuminance: 1000 to 2000 lx).
- Example 3 (Relationship between concentration and stability) According to the formulation shown in Table 3, 920 mg of magnesium chloride hexahydrate was dissolved in water for injection, 8 mL of 0.1 mol / L sodium hydroxide aqueous solution was added, and 4.332 g of compound (1) was added and dissolved. 8 g of sodium chloride was added to this solution, and after dissolution, 0.1 mol / L hydrochloric acid and 0.1 mol / L sodium hydroxide aqueous solution were added to adjust the pH to 6.2. Water for injection was added to this solution to make 1 L in total.
- Example 4 According to the formulation shown in Table 3, 920 mg of magnesium chloride hexahydrate was dissolved in water for injection, 8 mL of 0.1 mol / L sodium hydroxide aqueous solution was added, and 4.332 g of compound (1) was added and dissolved. To this solution was added 3.65 g of sodium chloride, and after dissolution, 0.1 mol / L hydrochloric acid and 0.1 mol / L aqueous sodium hydroxide solution were added to adjust the pH to 6.2. Water for injection was added to this solution to make a total volume of 500 mL.
- Example 5 According to the formulation shown in Table 3, 920 mg of magnesium chloride hexahydrate was dissolved in water for injection, 8 mL of 0.1 mol / L sodium hydroxide aqueous solution was added, and 4.332 g of compound (1) was added and dissolved. 0.1 mol / L hydrochloric acid and 0.1 mol / L sodium hydroxide aqueous solution were added to this liquid, and it adjusted to pH 6.0. Water for injection was added to this solution to make a total volume of 200 mL.
- Test Example 2 The aqueous solutions prepared in Examples 3 to 5 and Comparative Examples 3 to 4 were stored in a constant temperature bath of 30 ⁇ 2 ° C. for 3 months. After storage, the content of compound (1) and the content of by-product X with an undefined structure were measured by liquid chromatography (Waters, Alliance System). (Measurement conditions by liquid chromatography) Separation column: A stainless tube having an inner diameter of 4.6 mm and a length of 15 cm was packed with 3 ⁇ m of octadecylsilylated silica gel for liquid chromatography.
- Solution A Solution 1 to 1000 mL by dissolving 2.16 g of sodium 1-octanesulfonate in diluted phosphoric acid (1 ⁇ 1000)
- Solution B Methanol flow rate for liquid chromatography: 1.0 mL
- Detector UV absorptiometer (measurement wavelength: 294 nm)
- Table 5 shows the content of by-product X as a percentage of the content of by-product X with respect to the content of compound (1).
- Table 5 shows the content of by-product X as a percentage of the content of by-product X with respect to the content of compound (1).
- the concentration of compound (1) in the aqueous liquid increases, the content of by-product X after storage at 30 ° C. for 3 months decreased.
- the concentration of compound (1) was 3 mg / mL or more
- the content of by-product X decreased compared to Comparative Example 3 or 4 having a concentration of less than 3 mg / mL.
- Example 5 in which the concentration of the compound (1) is 10 mg / mL or more is higher than that of Example 3 (4.0 mg / mL) and Example 4 (8.0 mg / mL). It can be understood that the generation of is more suppressed.
- Example 6 According to the formulation shown in Table 6, 920 mg of magnesium chloride hexahydrate was dissolved in water for injection, 8 mL of 0.1 mol / L aqueous sodium hydroxide solution was added, and 4.332 g of compound (1) was added and dissolved. 0.1 mol / L hydrochloric acid and 0.1 mol / L sodium hydroxide aqueous solution were added to this liquid, and it adjusted to pH 6.0. Water for injection was added to this solution to make a total volume of 200 mL.
- Example 7 According to the formulation shown in Table 6, 920 mg of magnesium chloride hexahydrate was dissolved in water for injection, 8 mL of 0.1 mol / L aqueous sodium hydroxide solution was added, and 4.332 g of compound (1) was added and dissolved. 0.1 mol / L hydrochloric acid and 0.1 mol / L sodium hydroxide aqueous solution were added to this liquid, and it adjusted to pH 6.0. Water for injection was added to this solution to make a total volume of 100 mL.
- Test Example 3 The aqueous solutions prepared in Examples 6 to 7 and Comparative Example 5 were stored in a constant temperature bath of 40 ⁇ 2 ° C. for 3 months. After storage, the content of compound (1) and the content of by-product X were measured by liquid chromatography (Waters, Alliance System) in the same manner as in Test Example 2.
- Table 7 shows the by-product X content as a percentage of the content of the by-product X with respect to the content of the compound (1). As is clear from the results in Table 7, it became clear that the content of by-product X after storage at 40 ° C. for 3 months decreased as the concentration of compound (1) increased.
- Example 8 (Relationship between magnesium chloride and stability) According to the formulation shown in Table 8, 1.39 g of magnesium chloride hexahydrate was dissolved in water for injection, 8 mL of 0.1 mol / L aqueous sodium hydroxide solution was added, and then 4.332 g of compound (1) was added and dissolved. . 0.1 mol / L hydrochloric acid and 0.1 mol / L sodium hydroxide aqueous solution were added to this liquid, and it adjusted to pH 6.0. Water for injection was added to this solution to make a total volume of 100 mL.
- Example 9 According to the formulation shown in Table 8, 1.85 g of magnesium chloride hexahydrate was dissolved in water for injection, 8 mL of 0.1 mol / L sodium hydroxide aqueous solution was added, and then 4.332 g of compound (1) was added and dissolved. . 0.1 mol / L hydrochloric acid and 0.1 mol / L sodium hydroxide aqueous solution were added to this liquid, and it adjusted to pH 6.0. Water for injection was added to this solution to make a total volume of 100 mL.
- Test Example 4 The aqueous solutions prepared in Examples 7 to 9 were stored in a constant temperature bath of 40 ⁇ 2 ° C. for 4 weeks, and 7- ⁇ (3S, 4S) -3-aminomethyl-4-fluoropyrrolidin-1-yl ⁇ -6 -Fluoro-1- (2-fluoroethyl) -8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (compound (2)) content and compound (1) content Measurement was performed by liquid chromatography (Waters, Alliance System). Liquid chromatography was performed under the same conditions as in Test Example 2. Retention time of compound (2) relative to compound (1): 0.69
- Table 9 shows the content of compound (2) as a percentage of the content of compound (2) with respect to the content of compound (1). As is apparent from the results in Table 9, the production amount of the compound (2) could be suppressed by increasing the content of magnesium chloride in the aqueous liquid and increasing the molar ratio of the magnesium compound to the compound (1). .
- Example 11 4.332 g of compound (1) was added to water for injection, 920 mg of magnesium chloride hexahydrate was added, 0.1 mol / L sodium hydroxide was added to adjust to pH 6.0 and dissolved. 0.1 mol / L hydrochloric acid and 0.1 mol / L sodium hydroxide solution were added to this solution to adjust the pH to 6.0. Water for injection was added to this solution to make a total volume of 100 mL.
- Example 5 (Test Example 5) The production times of Example 7, Example 10 and Example 11 were measured.
- Table 10 shows the manufacturing time when manufactured by each manufacturing method.
- the compound (1) has a property of gelation when in contact with water. If the compound (1) is added to water as in Example 11, the compound (1) becomes a powdered state by gelation, and stirring is continued for 3 hours until it is uniformly mixed with water. There is a need. If the manufacturing time becomes long, the manufacturing cost increases, such as wear of manufacturing equipment and labor costs, which is not preferable.
- gelation can be reduced by adding magnesium chloride hexahydrate in advance to the water to which compound (1) is added and adjusting the pH to an appropriate range.
- compound (1) quickly dissolves in water, and can be produced in 1/3 or less of Example 11.
- the production time can also be shortened by heating (Example 10).
- an aqueous liquid containing the compound of formula (1) or a salt thereof having excellent antibacterial activity against gram positive bacteria and gram negative bacteria is provided.
- the aqueous liquid preparation of the present invention is industrially useful because precipitation and chemical decomposition of the compound of formula (1) are suppressed.
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Abstract
Description
なお、上述の特許文献2~9に記載のキノロンカルボン酸誘導体は、シクロプロピルアミノメチル構造を有していない。
本発明をさらに詳細に記載すると以下の通りである。
〔1〕一般式(1)
で表される化合物又はその塩、およびマグネシウム化合物を含有し、
pHが5.8以上6.9以下であり、
前記一般式(1)で表される化合物の濃度が3mg/mL以上である水性液剤。
〔2〕使用する際には、前記一般式(1)で表される化合物の濃度が2mg/mL以下になるように希釈して用いる、〔1〕に記載の水性液剤。
〔3〕前記一般式(1)で表される化合物の塩酸塩を含有する、〔1〕又は〔2〕に記載の水性液剤。
〔4〕前記一般式(1)で表される化合物又はその塩に対するマグネシウム化合物のモル比が0.45以上1.5以下である〔1〕乃至〔3〕のいずれか1項に記載の水性液剤。
〔5〕前記水性液剤のpHが5.8以上6.5以下である、〔1〕乃至〔4〕のいずれか1項に記載の水性液剤。
〔6〕前記中の一般式(1)で表される化合物の濃度が15mg/mL以上50mg/mL以下である、〔1〕乃至〔5〕のいずれか1項に記載の水性液剤。
〔7〕使用する際には、希釈用液として生理食塩水を用いて希釈される、〔1〕乃至〔6〕のいずれか1項に記載の水性液剤。
〔8〕一般式(1)
〔9〕(A)および(B)工程を含有する、〔1〕乃至〔7〕のいずれか1項に記載の水性液剤を製造する方法。
(A)マグネシウム化合物の水溶液に、pH調整剤を加える工程
(B)(A)工程で得られた水溶液に、前記一般式(1)で表される化合物又はその塩を加える工程
〔10〕(C)および(D)工程を含有する、〔1〕乃至〔7〕のいずれか1項に記載の水性液剤を製造する方法。
(C)前記一般式(1)で表される化合物又はその塩を、30℃以上80℃以下で加温しながら、水に溶解又は懸濁する工程
(D)(C)工程で得られた水溶液又は懸濁液に、マグネシウム化合物及びpH調整剤を加える工程
pHが5.8以上6.9以下であり、
一般式(1)で表される化合物の濃度が3mg/mL以上である水性液剤に関する。
特に好ましい、「式(1)化合物又はその塩に対するマグネシウム化合物のモル比」は、0.45以上1.5以下、さらにより好ましくは0.70以上1.1以下である。
マグネシウム化合物を、水、生理食塩水、リンガー溶液、ブドウ糖溶液、乳酸リンゲル液、酢酸リンゲル液、重炭酸リンゲル液、マルトース液又はキシリトール液等の生理的に許容可能なキャリアに溶解する。得られた当該溶液に、pH調整剤を添加した後に、式(1)化合物又はその塩を添加する。(ここで、式(1)化合物又はその塩に対するマグネシウム化合物のモル比が、0.35以上になることが好ましく、さらに好ましい当該比は、0.45以上1.5以下である。)当該溶液を攪拌し、式(1)化合物又はその塩を溶解させる。当該溶液は、さらに当該溶液にpH調整剤を添加する工程により、pHを調整してもよく、当該溶液に生理的に許容可能なキャリアを添加する工程により、溶液量を調整してもよい。
以上の操作により、pHが5.8以上6.9以下で、水性液剤中の一般式(1)で表される化合物の濃度が3mg/mL以上である、本実施形態の水性液剤を得る事ができる。
式(1)化合物又はその塩を、水、生理食塩水、リンガー溶液、ブドウ糖溶液、乳酸リンゲル液、酢酸リンゲル液、重炭酸リンゲル液、マルトース液又はキシリトール液等の生理的に許容可能なキャリアに溶解又は懸濁する。得られた溶液又は懸濁液がゲル化した場合は、当該溶液又は懸濁液を、加温してもよい。加温する場合、溶液又は懸濁液の温度として、好ましくは30℃以上80℃以下、さらに好ましくは30℃以上70℃以下、特に好ましくは30℃以上50℃以下が挙げられる。当該溶液又は懸濁液に、マグネシウム化合物の添加及びpH調整剤を加えて攪拌を行い、式(1)化合物又はその塩を完全に溶解する。当該溶液は、さらに当該溶液にpH調整剤を添加する工程により、pHを調整してもよく、当該溶液に生理的に許容可能なキャリアを添加する工程により、溶液量を調整してもよい。
以上の操作により、pHが5.8以上6.9以下で、水性液剤中の一般式(1)で表される化合物の濃度が3mg/mL以上である、本実施形態の水性液剤を得る事ができる。
また、粉末X線回折は、理学電機製RINT2200を使用して行なった。銅放射線を放射線として用い、測定条件は、管電流36mA、管電圧40kV、発散スリット1度、散乱スリット1度、受光スリット0.15mm、走査範囲1~40度(2θ)、走査速度毎分2度(2θ)とした。
ビス(アセタト-O)-{6,7-ジフルオロ-1-(2-フルオロエチル)-8-メトキシ-4-オキソ-1,4-ジヒドロキノリン-3-カルボキシラト-O 3 ,O 4 }ボロン
窒素雰囲気下、無水酢酸21.4L(225mol)に、ホウ酸(触媒作成用)103g(1.67mol)を加え、70.0~76.9°Cで30分間加熱撹拌した(撹拌速度69.5rpm)。当該混合液を内温24.6°Cまで冷却した。その後、混合液に1回目のホウ酸1.01kg(16.3mol)を加え、24.6~27.4°Cで30分撹拌した。混合液に2回目のホウ酸1.01kg(16.3mol)を加え、24.7~27.5°Cで30分撹拌した。混合液に3回目のホウ酸1.01kg(16.3mol)を加え、24.7~27.7°Cで30分撹拌した。混合液に4回目のホウ酸1.01kg(16.3mol)を加え、25.4~29.4°Cで30分撹拌した。さらに、混合液を50.0~56.9°Cで30分撹拌し、ホウ酸トリアセテート調整液とした。
元素分析(%):C17H15BF3NO8として
計算値:C,47.58;H,3.52;N,3.26.
実測値:C,47.41;H,3.41;N,3.20.
1H-NMR(CDCl3,400 MHz)δ:2.04(6H,s),4.21(3H, d,J=2.9Hz),4.88(2H,dt,J=47.0,4.4Hz),5.21(2H,dt,J=24.9,3.9Hz),8.17(1H,t,J=8.8Hz),9.10(1H,s).
ESI MS(positive) m/z:430(M+H)+.
7-[(3S,4S)-3-{(シクロプロピルアミノ)メチル}-4-フルオロピロリジン-1-イル]-6-フルオロ-1-(2-フルオロエチル)-8-メトキシ-4-オキソ-1,4-ジヒドロキノリン-3-カルボン酸塩酸塩
窒素雰囲気下、(3R,4S)-3-シクロプロピルアミノメチル-4-フルオロピロリジン3.56kg(15.4mol)、トリエチルアミン11.7L(84.2mol)及びジメチルスルホキシド30.0Lを混合し、反応液とした。反応液を、23.0~26.3°Cで15分撹拌した。反応液に23.0~26.3°Cでビス(アセタト-O){6,7-ジフルオロ-1-(2-フルオロエチル)-8-メトキシ-4-オキソ-1,4-ジヒドロキノリン-3-カルボキシラト-O3,O4}ボロン6.00kg(14.0mol)を加え、23.7~26.3°Cで2時間撹拌した。続いて、反応液に酢酸エチル120Lを加え、さらに常水120Lを加えた後、水酸化ナトリウム960g(2mol/Lとする量)及び常水12.0Lの溶液を加え、5分間撹拌後、水層を分取した。水層に、酢酸エチル120Lを加え、5分間撹拌後、酢酸エチル層を分取した。
7-[(3S,4S)-3-{(シクロプロピルアミノ)メチル}-4-フルオロピロリジン-1-イル]-6-フルオロ-1-(2-フルオロエチル)-8-メトキシ-4-オキソ-1,4-ジヒドロキノリン-3-カルボン酸塩酸塩A型結晶(化合物(1))
7-[(3S,4S)-3-{(シクロプロピルアミノ)メチル}-4-フルオロピロリジン-1-イル]-6-フルオロ-1-(2-フルオロエチル)-8-メトキシ-4-オキソ-1,4-ジヒドロキノリン-3-カルボン酸塩酸塩の湿潤粗結晶9.57kgをエタノール60L、精製水10.8Lの混合溶媒に添加し、加熱溶解した。この溶解液を、フィルターを通しろ過し、エタノール24.0L及び精製水1.20Lの混合溶媒で洗い込んだ。溶解を確認し、加熱したエタノール(99.5)96.0Lを71.2~72.6°Cで溶解液に添加した。その溶解液を冷却し(温水設定温度60.0°C)晶析確認後(晶析温度61.5°C)、59.4~61.5°Cで30分撹拌した。溶解液を段階的に冷却し(50.0°Cまで温水設定温度40.0°C、40.0°Cまで温水設定温度30.0°C、30.0°Cまで温水設定温度20.0°C、20.0°Cまで設定温度7.0°C、15.0°Cまで設定温度-10.0°C、これ以降溜置き)、4.8~10.0°Cで1時間撹拌した。析出した結晶をろ取し、エタノール30.0Lで洗浄し、7-[(3S,4S)-3-{(シクロプロピルアミノ)メチル}-4-フルオロピロリジン-1-イル]-6-フルオロ-1-(2-フルオロエチル)-8-メトキシ-4-オキソ-1,4-ジヒドロキノリン-3-カルボン酸塩酸塩の湿潤結晶を5.25kg得た。得られた湿潤結晶を設定温度50.0°Cで約13時間減圧乾燥し、化合物(1)を4.83kg得た(収率72.6%)。
計算値:C,53.00;H,5.30;N,8.83.
実測値:C,53.04;H,5.18;N,8.83.
1H NMR(DMSO-d6,400MHz)δ(ppm):0.77-0.81(2H,m),0.95-1.06(2H,m),2.80-2.90(2H,m),3.21-3.24(1H,m),3.35-3.39(1H,m),3.57(3H,s),3.65-3.78(3H,m),4.13(1H,dd,J=41.8,13.1Hz),4.64-4.97(3H,m),5.14(1H,dd,J=32.7,15.6Hz), 5.50(1H,d,J=53.7Hz),7.80(1H,d,J=13.7Hz), 8.86(1H,s),9.44(2H,brs),15.11(1H,brs).
ESI MS(positive) m/z:440(M+H)+.
(実施例1)
表1に示す処方に従い、塩化マグネシウム六水和物920mgを注射用水に溶解し、0.1mol/L水酸化ナトリウム水溶液を8mL添加後、化合物(1)4.332gを添加し溶解させた。この液に0.1mol/L塩酸及び0.1mol/L水酸化ナトリウム水溶液を添加し、pH5.8に調整した。この溶液に注射用水を加え、全量で100mLとした。液量調整後のpHは5.8であった。
なお、注射用水は、第16改正日本薬局方に定義される注射用水を用いた(以下、同じ)。
表1に示す処方に従い、塩化マグネシウム六水和物920mgを注射用水に溶解し、0.1mol/L水酸化ナトリウム水溶液を8mL添加後、化合物(1)4.332gを添加し溶解させた。この液に0.1mol/L塩酸及び0.1mol/L水酸化ナトリウム水溶液を添加し、pH6.9に調整した。この溶液に注射用水を加え、全量で100mLとした。液量調整後のpHは6.9であった。
表1に示す処方に従い、塩化マグネシウム六水和物920mgを注射用水に溶解し、0.1mol/L水酸化ナトリウム水溶液を8mL添加後、化合物(1)4.332gを添加し溶解させた。この液に0.1mol/L塩酸及び0.1mol/L水酸化ナトリウム水溶液を添加し、pH5.7に調整した。この溶液に注射用水を加え、全量で100mLとした。液量調整後のpHは5.7であった。
表1に示す処方に従い、塩化マグネシウム六水和物920mgを注射用水に溶解し、0.1mol/L水酸化ナトリウム水溶液を8mL添加後、化合物(1)4.332gを添加し溶解させた。この液に0.1mol/L塩酸及び0.1mol/L水酸化ナトリウム水溶液を添加し、pH7.0に調整した。この溶液に注射用水を加え、全量で100mLとした。液量調整後のpHは7.0であった。
実施例1~2及び比較例1及び2で調製した水性液剤について、pHの測定及び外観観察を行った。外部観察は、保存前(調製直後を意味する。以下同じ)と各液を5℃で1週間保存後に行った。
pH測定方法:日本薬局方一般試験法のpH測定法に準じて測定した。
外観観察方法:異物検査器(照度:1000~2000lx)を用いて観察した。
(実施例3)
表3に示す処方に従い、塩化マグネシウム六水和物920mgを注射用水に溶解し、0.1mol/L水酸化ナトリウム水溶液を8mL添加後、化合物(1)4.332gを添加し溶解させた。この液に塩化ナトリウム8gを加え、溶解後0.1mol/L塩酸及び0.1mol/L水酸化ナトリウム水溶液を添加し、pH6.2に調整した。この溶液に注射用水を加え、全量で1Lとした。
表3に示す処方に従い、塩化マグネシウム六水和物920mgを注射用水に溶解し、0.1mol/L水酸化ナトリウム水溶液を8mL添加後、化合物(1)4.332gを添加し溶解させた。この液に塩化ナトリウム3.65gを加え、溶解後0.1mol/L塩酸及び0.1mol/L水酸化ナトリウム水溶液を添加し、pH6.2に調整した。この溶液に注射用水を加え、全量で500mLとした。
表3に示す処方に従い、塩化マグネシウム六水和物920mgを注射用水に溶解し、0.1mol/L水酸化ナトリウム水溶液を8mL添加後、化合物(1)4.332gを添加し溶解させた。この液に0.1mol/L塩酸及び0.1mol/L水酸化ナトリウム水溶液を添加し、pH6.0に調整した。この溶液に注射用水を加え、全量で200mLとした。
表3に示す処方に従い、塩化マグネシウム六水和物115mgを注射用水に溶解し、0.1mol/L水酸化ナトリウム水溶液を8mL添加後、化合物(1)541.5mgを添加し溶解させた。この液に塩化ナトリウム8.8gを加え、溶解後0.1mol/L塩酸及び0.1mol/L水酸化ナトリウム水溶液を添加し、pH6.2に調整した。この溶液に注射用水を加え、全量で1Lとした。
表3に示す処方に従い、塩化マグネシウム六水和物920mgを注射用水に溶解し、0.1mol/L水酸化ナトリウム水溶液を8mL添加後、化合物(1)4.332gを添加し溶解させた。この液に塩化ナトリウム17.1gを加え、溶解後0.1mol/L塩酸及び0.1mol/L水酸化ナトリウム水溶液を添加し、pH6.2に調整した。この溶液に注射用水を加え、全量で2Lとした。
実施例3~5及び比較例3~4で調製した水性液剤について、30±2℃の恒温糟に3箇月保存した。保存後、化合物(1)の含有量と構造未確定の副生成物Xの含有量を液体クロマトグラフィー( Waters製、アライアンスシステム)で測定した。
(液体クロマトグラフィーによる測定条件)
分離カラム:内径4.6mm、長さ15cmのステンレス管に、3μmの液体クロマトグラフィー用オクタデシルシリル化シリカゲルを充填した。
A液:1-オクタンスルホン酸ナトリウム2.16gを薄めたリン酸(1→1000)に溶解して1000mLとした液
B液:液体クロマトグラフィー用メタノール
流速:1.0mL
検出器:紫外吸光光度計(測定波長:294nm)
副生成物Xの式(1)化合物に対する保持時間:0.64
送液:A液とB液の混合比を表4に示す。
表6に示す処方に従い、塩化マグネシウム六水和物920mgを注射用水に溶解し、0.1mol/L水酸化ナトリウム水溶液を8mL添加後、化合物(1)4.332gを添加し溶解させた。この液に0.1mol/L塩酸及び0.1mol/L水酸化ナトリウム水溶液を添加し、pH6.0に調整した。この溶液に注射用水を加え、全量で200mLとした。
表6に示す処方に従い、塩化マグネシウム六水和物920mgを注射用水に溶解し、0.1mol/L水酸化ナトリウム水溶液を8mL添加後、化合物(1)4.332gを添加し溶解させた。この液に0.1mol/L塩酸及び0.1mol/L水酸化ナトリウム水溶液を添加し、pH6.0に調整した。この溶液に注射用水を加え、全量で100mLとした。
表6に示す処方に従い、塩化マグネシウム六水和物920mgを注射用水に溶解し、0.1mol/L水酸化ナトリウム水溶液を8mL添加後、化合物(1)4.332gを添加し溶解させた。この液に塩化ナトリウム17.1gを加え、溶解後0.1mol/L塩酸及び0.1mol/L水酸化ナトリウム水溶液を添加し、pH6.5に調整した。この溶液に注射用水を加え、全量で2Lとした。
実施例6~7及び比較例5で調製した水性液剤について、40±2℃の恒温糟に3箇月保存した。保存後、試験例2と同様の方法で、化合物(1)の含有量と副生成物Xの含有量を液体クロマトグラフィー( Waters製、アライアンスシステム)で測定した。
(実施例8)
表8に示す処方に従い、塩化マグネシウム六水和物1.39gを注射用水に溶解し、0.1mol/L水酸化ナトリウム水溶液を8mL添加後、化合物(1)4.332gを添加し溶解させた。この液に0.1mol/L塩酸及び0.1mol/L水酸化ナトリウム水溶液を添加し、pH6.0に調整した。この溶液に注射用水を加え、全量で100mLとした。
表8に示す処方に従い、塩化マグネシウム六水和物1.85gを注射用水に溶解し、0.1mol/L水酸化ナトリウム水溶液を8mL添加後、化合物(1)4.332gを添加し溶解させた。この液に0.1mol/L塩酸及び0.1mol/L水酸化ナトリウム水溶液を添加し、pH6.0に調整した。この溶液に注射用水を加え、全量で100mLとした。
実施例7~9で調整した水性液剤について、40±2℃の恒温糟に4週間保存し、7-{(3S,4S)-3-アミノメチル-4-フルオロピロリジン-1-イル}-6-フルオロ-1-(2-フルオロエチル)-8-メトキシ-4-オキソ-1,4-ジヒドロキノリン-3-カルボン酸(化合物(2))の含有量と、化合物(1)の含有量を液体クロマトグラフィー( Waters製、アライアンスシステム)で測定した。 液体クロマトグラフィーは試験例2と同様の条件で行った。
化合物(2)の化合物(1)に対する保持時間:0.69
(実施例10)
40℃に加温しながら化合物(1)4.332gを注射用水に添加し、塩化マグネシウム六水和物920mgを添加し、0.1mol/L水酸化ナトリウム8mLを加えて溶解させた。この液に0.1mol/L塩酸及び0.1mol/L水酸化ナトリウム溶液を添加し、pH6.0に調整した。この溶液に注射用水を加え、全量で100mLとした。
化合物(1)4.332gを注射用水に添加し、塩化マグネシウム六水和物920mgを添加し、0.1mol/L水酸化ナトリウムを加えてpH6.0に調整し溶解させた。この液に0.1mol/L塩酸及び0.1mol/L水酸化ナトリウム溶液を添加し、pH6.0に調整した。この溶液に注射用水を加え、全量で100mLとした。
実施例7、実施例10及び実施例11の製造時間を測定した。
Claims (10)
- 使用する際には、前記一般式(1)で表される化合物の濃度が2mg/mL以下になるように希釈して用いる、請求項1に記載の水性液剤。
- 前記一般式(1)で表される化合物の塩酸塩を含有する、請求項1又は2に記載の水性液剤。
- 前記一般式(1)で表される化合物又はその塩に対するマグネシウム化合物のモル比が0.45以上1.5以下である請求項1乃至3のいずれか1項に記載の水性液剤。
- 前記水性液剤のpHが5.8以上6.5以下である、請求項1乃至4のいずれか1項に記載の水性液剤。
- 前記水性液剤中の一般式(1)で表される化合物の濃度が15mg/mL以上50mg/mL以下である、請求項1乃至5のいずれか1項に記載の水性液剤。
- 使用する際には、希釈用液として生理食塩水を用いて希釈される、請求項1乃至6のいずれか1項に記載の水性液剤。
- 一般式(1)
で表される化合物又はその塩を含有する水性液剤において、前記一般式(1)で表される化合物又はその塩に対するモル比が0.45以上1.5以下であるマグネシウム化合物を配合し、水性液剤中の前記一般式(1)で表される化合物の濃度を3mg/mL以上にすることを含む、前記一般式(1)で表される化合物又はその塩の分解を抑制する方法。 - (A)および(B)工程を含有する、請求項1乃至7のいずれか1項に記載の水性液剤を製造する方法。
(A)マグネシウム化合物の水溶液に、pH調整剤を加える工程
(B)(A)工程で得られた水溶液に、前記一般式(1)で表される化合物又はその塩を加える工程 - (C)および(D)工程を含有する、請求項1乃至7のいずれか1項に記載の水性液剤を製造する方法。
(C)前記一般式(1)で表される化合物又はその塩を、30℃以上80℃以下で加温しながら、水に溶解又は懸濁する工程。
(D)(C)工程で得られた水溶液又は懸濁液に、マグネシウム化合物及びpH調整剤を加える工程。
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WO2005026147A1 (ja) * | 2003-09-10 | 2005-03-24 | Kyorin Pharmaceutical Co., Ltd. | 7−(4−置換−3−シクロプロピルアミノメチル−1−ピロリジニル)キノロンカルボン酸誘導体 |
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US20180169088A1 (en) | 2018-06-21 |
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