JP3126683B2 - D-mannitol and method for producing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a novel D-mannitol and a method for producing the same. More specifically, the present invention relates to D-mannitol which can be used as an excipient having excellent compression moldability in the fields of medicine and food, and a method for producing the same.

[0002]

2. Description of the Related Art
Mannitol is excellent in safety, incorporation with bioactive substances, and has no hygroscopicity and hardly retains water, so it is especially suitable for formulation of tablets, capsules, etc. of bioactive substances with high moisture sensitivity. It is a highly useful excipient. On the other hand, D-mannitol has a poor bonding property during compression molding and has a large friction with a metal wall surface, so that it causes die friction and capping during compression molding and has sufficient hardness for tablets. This causes a problem that the surface of the tablet machine cannot be imparted, and also causes abrasion of the mortar wall surface and the side surface of the punch, and sometimes the operation of the tablet machine becomes difficult. Therefore, the use of D-mannitol as an excipient is currently limited to extremely limited dosage forms such as chewable tablets. D-
Mannitol is a crystalline powder having crystalline polymorphs classified into α-form, β-form and δ-form according to the X-ray diffraction pattern [Walter-Levy, L., Acad. Sci. Parist. 276 Series
C, 1779, (1968)]. In improving the formability of crystalline powder, it is generally known that the number of bonding points is increased by finely pulverizing crystals, thereby improving the formability.
However, in the case of D-mannitol, mere pulverization not only promotes friction with the metal wall surface during compression molding, but also causes problems in handling, such as powdering and reduced fluidity.

[0003] Also, Journal of Pharmaceutical Scie
nces), 53 (2), 188-192 (1964) dissolves D-mannitol and immediately cools it to improve moldability.
-A method for obtaining mannitol has been reported, but the improvement in moldability by this method does not sufficiently satisfy the requirements for pharmaceuticals. In addition, since the treatment method is special, it is difficult to apply the method to production on an industrial scale, and there is a problem in cost performance. Accordingly, an object of the present invention is to provide D-mannitol having excellent powder properties by a simple operation and having dramatically improved moldability.

[0004]

Means for Solving the Problems In view of such circumstances, the present inventors have conducted intensive studies on a method of obtaining D-mannitol having excellent powder properties and improved moldability by simple operation. When a water-soluble solvent was brought into contact with the δ-type crystal, a crystal transition to the β-type occurred on the contact surface, and at this time, a phenomenon in which fine crystals were precipitated was found. Utilizing this phenomenon, the inventors conceived of obtaining D-mannitol particles composed of aggregates of fine crystals, and as a result of earnest studies, completed the present invention.

That is, the present invention provides D-mannitol having a specific surface area of about 1 m ² / g or more, particularly D-mannitol which is a mixture of δ-type and β-type crystals. Also, the present invention provides a method for producing D-mannitol having a specific surface area of about 1 m ² / g or more, comprising treating a δ-form D-mannitol crystal with a water-soluble solvent and drying the crystal. Is used in an amount of about 3 to about 70 W / W% of δ-form D-mannitol crystals. Further, the present invention provides a solid composition comprising D-mannitol having a specific surface area of about 1 m ² / g or more,
In particular, it provides a solid composition containing a pharmaceutically active ingredient.
As the pharmaceutically active ingredient, for example, 3R, 5S-
(+)-Erythro (E) -7- [4- (4-fluorophenyl) -2,6-diisopropyl-5-methoxymethyl-pyrid-3-yl] -3,5-dihydroxy-hept-6-ene Acid sodium.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION D-mannitol of the present invention
Consist of a mixture of the type crystals alone or δ-type crystal, a specific surface area of about 1 m ² / g or more, preferably about 1.5 m ² /
g, usually about 1.5 to about 4 m ² / g of D-mannitol crystal aggregate. Here, the specific surface area is a numerical value calculated by a generally used BET method. In terms of convenience in use as an additive or excipient in a formulation or food, the particulate form, particularly the average particle size, is from about 0.05 to about 5.0 mm, and more preferably from about 0.08 to about 5.0 mm.
It is preferable that the crystal aggregate has a size of about 2.0 mm, but the shape is not particularly limited.
D-mannitol of the present invention is included in the present invention as long as it has the above physical properties such as a thin plate.

The α-type, β-type and δ-type D-mannitol crystals in this specification are reported by Walter-Levy, L. [Acad. Sci. Paris t. 276 Series C, 1779, (1
968)] according to the classification of the polymorphism of D-mannitol by the obtained X-ray diffraction pattern.

The D-mannitol of the present invention is obtained by treating a δ-type crystal as a raw material, treating the δ-type crystal with a water-soluble solvent, and drying (preferably, rapid drying) to form a fine β-type crystal on the surface of the raw material crystal or inside the crystal. Obtained by a method of transferring to
More specifically, by wetting the surface of the δ crystal with a water-soluble solvent, a part or all of the δ crystal reacted with the solvent is successively crystallized from the crystal surface to the inside to the β form, and Obtained by a method comprising a step of suppressing the growth of the β-type crystal by drying. Therefore, the D-mannitol of the present invention usually exists as a mixture of a δ-type crystal and a β-type crystal. The composition ratio in the mixture is determined by the above-described crystal transition step and crystal growth suppressing step, but is not particularly limited. As means for treating the δ-type crystal with a water-soluble solvent, for example, δ
Spraying a water-soluble solvent on a thin layer of a type crystal, stirring while spraying or dropping a water-soluble solvent on a δ-type crystal, etc. can wet individual crystal surfaces without completely dissolving in a water-soluble solvent. Means may be used. In this treatment step, other components may be mixed as long as the crystal surface of D-mannitol can be wetted. For example, as in the examples described later, one of the compositions of the final product containing D-mannitol may be used. It is also within the scope of the present invention to treat parts or all of the mixture with a water-soluble solvent.

Examples of the water-soluble solvent include purified water, methanol, ethanol, acetone or a mixture thereof, and the mixing ratio is appropriately selected and used as desired. In particular, purified water, ethanol and a mixture thereof are preferably used. Such a water-soluble solvent is usually selected depending on the selected crystal processing method or solvent and the like.
It is used by being appropriately selected from the range of about 3 to about 70 w / w%, more preferably about 15 to about 40 w / w% based on the raw material crystal. For example, when a water-soluble solvent is added to the crystal and a means for stirring is selected, it is preferable to add about 5 w / w% or more in consideration of the diffusion rate of the water-soluble solvent.

In the drying step, the time required for drying is preferably as short as possible in order to suppress the growth of fine crystals generated by the above treatment. Therefore, in general, rapid drying is often preferred. On the other hand, the raw material crystal continues the crystal transition by the treatment with the water-soluble solvent until the transition to the β-type crystal is completed. Therefore, the drying step in the production method of the present invention is determined by the relative relationship with the crystal transition rate, and has no particular time limitation. Therefore, for example, in a treatment method in which purified water is added to and mixed with the raw material crystals, the purified water is mixed within 48 hours, preferably 1 hour, after both are uniformly mixed.
It is preferred to remove within 6 hours, more preferably within 8 hours, but this period can of course vary depending on the treatment method, solvent, drying method, etc. selected. As a drying method, vacuum drying, ventilation drying, fluidized drying, high-frequency drying and the like are used, and among them, vacuum drying is preferable.

The D-mannitol of the present invention obtained as described above has the above specific surface area, exhibits excellent moldability, and is suitable for direct tableting, wet granulation or dry granulation. Can be used as an excipient. The mannitol can be an excipient for a solid composition useful in the fields of medicine and food, and is useful in the production of a solid composition containing a pharmaceutically active ingredient or a sweetener. The solid composition of the present invention comprises about 1 m ²
/ G of mannitol having a specific surface area of at least
Further, it preferably contains a pharmaceutically active ingredient or a sweetener. The content of the pharmaceutically active ingredient and the sweetener in the solid composition may be an effective amount thereof. The solid composition of the present invention preferably contains a pharmaceutically active ingredient.

Here, the pharmaceutically active ingredient includes, for example, a bioactive peptide, an antitumor agent, an antibiotic, an antipyretic,
Analgesic, anti-inflammatory, antitussive expectorant, bronchodilator, sedative, muscle relaxant, antiepileptic, antiulcer, antidepressant, antiallergic, inotropic, arrhythmic, vasodilator, antihypertensive, Antidiabetic agent, antilipidemic agent, anticoagulant, hemostatic, antituberculous, hormonal, narcotic antagonist, bone resorption inhibitor, bone formation promoter, angiogenesis inhibitor, vitamins, etc. .

Examples of the physiologically active peptide include LH
-RH (luteinizing hormone-releasing hormone) agonists [US Pat. Nos. 3,853,837, 4,008,209 and 3,973]
2,859; British Patent 1,423,083; Proceedings of the National Academy of Sciences of the National Academy of Sciences of the United States of America
of the United States of America) Vol. 78, No. 6509-6
512 (1981)], LH-RH antagonists [U.S. Pat. Nos. 4,086,219, 4,124,577 and 4,253,99]
Nos. 4,317,815 and 5,480,868], insulin, somatostatin, somatostatin derivatives (sandostatin, U.S. Pat. Nos. 4,087,390 and 4,093,574).
Nos. 4,100,117 and 4,253,998), growth hormone, prolactin, adrenocorticotropic hormone (ACT
H), ACTH derivatives (such as eviratide), melanocyte stimulating hormone (MSH), thyroid hormone releasing hormone (TRH) and derivatives thereof (Japanese Patent Application Laid-Open No. 50-121273).
No. JP-A-52-116465), thyroid stimulating hormone (TSH), luteinizing hormone (LH), follicle stimulating hormone (FSH), vasopressin, vasopressin derivative ｛desmopressin [Japanese Journal of Endocrine Society, Vol. No. 5, pages 676 to 691 (1978)], oxytocin, calcitonin, parathyroid hormone (PTH), glucagon,
Gastrin, secretin, pancreozymine, cholecystokinin, angiotensin, human placental lactogen, human chorionic gonadotropin (HCG), enkephalin, enkephalin derivative [US Pat. No. 4,277,394
No., European Patent Application Publication No. 31567], endorphins, kyotorphins, interferons (eg, α-type, β-type, γ-type, etc.), interleukins (eg, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
12)), tuftsin, thymopoietin, thymosin,
Thymostimulin, thymic factor (THF), blood thymic factor (FTS) and derivatives thereof (US Pat. No. 4,229,43)
No. 8), and other thymic factors [Ayumi,
125, No. 10, pp. 835-843 (1983)], tumor necrosis factor (TNF), colony-inducing factor (CSF, GCS
F, GMCSF, MCSF, etc.), motilin, dynorphin, bombesin, neurotensin, caerulein, bradykinin, urokinase, asparaginase, kallikrein, substance P, insulin-like growth factor (I
GF-I, IGF-II), nerve growth factor (NGF),
Cell growth factors (EGF, TGF-α, TGF-β, PD
GF, acidic FGF, basic FGF, etc.), bone morphogenetic factor (B
MP), neurotrophic factors (NT-3, NT-4, CNT)
F, GDNF, BDNF, etc.), blood coagulation factors VIII, IX, lysozyme chloride, polymyxin B, colistin, gramicidin, bacitracin and erythropoietin (EPO), thrombopoietin (TPO), peptides having endothelin antagonism ( European Patent Publication Nos. 436189, 457195, and 496452,
Nos. 94692 and 3-130299).

Examples of the antitumor agent include bleomycin, methotrexate, actinomycin D, mitomycin C, vinblastine sulfate, vincristine sulfate,
Daunorubicin, adriamycin, neocarzinostatin, cytosine arabinoside, fluorouracil, tetrahydrofuryl-5-fluorouracil, krestin,
Picibanil, lentinan, levamisole, bestatin, azimexone, glycyrrhizin, poly I: C, poly A: U, poly ICLC and the like. As antibiotics, for example, gentamicin, dibekacin, canendomycin, ribidomycin, tobramycin, amikacin, fradiomycin, sisomycin, tetracycline hydrochloride, oxytetracycline hydrochloride, lolitetracycline, doxycycline hydrochloride, ampicillin, piperacillin, ticarcillin, cephalothin, cephaloridine, Cefotiam, cefsulodin, cefmenoxime, cefmetazole, cefazolin, cefotaxime, cefoperazone, ceftizoxime, moxalactam, thienamycin, sulfazecin, azuleonam, cefotiamhexetyl hydrochloride, acetoxymethyl (+)-(5R, 6S) -6
-[(R) -1-hydroxyethyl] -7-oxo-3- (3-pyridyl) -4-thia-1-azabicyclo [3.2.0] hept-2-ene-2-
Carboxylate and the like. Examples of antipyretic, analgesic and anti-inflammatory agents include salicylic acid, sulpyrine, flufenamic acid, diclofenac, indomethacin, morphine, pethidine hydrochloride, levorphanol tartrate, oxymorphone and the like.

Examples of antitussive expectorants include ephedrine hydrochloride, methylephedrine hydrochloride, noscapine hydrochloride, codeine phosphate, dihydrocodeine phosphate, allochloramide hydrochloride, clofedanol hydrochloride, picoperidamine hydrochloride,
Cloperastine, protochlorol hydrochloride, isoproterenol hydrochloride, salbutamol sulfate, terbutaline sulfate and the like. Examples of the bronchodilator include phenylpropanolamine hydrochloride, theophylline, salbutamol sulfate, and the like. As a sedative, for example,
Chlorpromazine, prochlorperazine, trifloperazine, atropine sulfate, methyl scopolamine bromide and the like can be mentioned. Examples of the muscle relaxant include pridinol methanesulfonate, tubocurarine chloride, pancuronium bromide and the like. Antiepileptic agents include, for example, phenytoin, ethosuximide, sodium acetazolamide, chlordiazepoxide and the like. As the anti-ulcer agent, for example, benzimidazole compounds [U.S. Pat. Nos. 4,045,563, 4,255,431 and 4,472,40
No. 9, European Patent Publication Nos. 45200, 5129, 1747
No. 26, No. 175464, No. 208452, UK Patent Publication No. 2,134,
No. 523], metoclopromide, histidine hydrochloride and the like. Examples of the antidepressant include imipramine, clomipramine, noxiptiline, phenelzine sulfate and the like.

Examples of the antiallergic agent include diphenhydramine hydrochloride, chlorpheniramine maleate, tripelenamine hydrochloride, methdilazine hydrochloride, clemizole hydrochloride, diphenylpyraline hydrochloride, methoxyphenamine hydrochloride and the like. Examples of the cardiotonic agent include transpioxocamphor, theophyllol, aminophylline, and ethylrefrin hydrochloride. Examples of the antiarrhythmic agent include propranol, alprenolol, bufetrol, oxyprenolol and the like. Examples of the vasodilator include oxyfedrine hydrochloride, diltiazem, tolazoline hydrochloride, hexobendine, and bamethane sulfate. Examples of antihypertensive diuretics include hexamethonium bromide, pentolinium, mecamylamine hydrochloride, ecarazine hydrochloride, clonidine and the like. Examples of the therapeutic agent for diabetes include an insulin sensitivity enhancer [see European Patent Publication No. 79951], voglibose, miglitol, glymidine sodium, glipizide, phenformin hydrochloride, buformin hydrochloride, metformin and the like.

[0017] Examples of antilipidemic agents include 3R, 5S
-(+)-Erythro- (E) -7- [4- (4-fluorophenyl) -2,6-diisopropyl-5-methoxymethyl-pyrid-3-yl] -3,5-dihydroxy-
Sodium hept-6-enoate, pravastatin sodium, simvastatin, clinofibrate, clofibrate, simfibrate, bezafibrate and the like. Examples of the anticoagulant include heparin sodium and the like. Examples of the hemostatic agent include thromboplastin, thrombin, menadione sodium bisulfite, acetomenaphthone, ε-aminocaproic acid, tranexamic acid, sodium carbazochrome sulfonate, adrenochrome monoaminoguanidine methanesulfonate, and the like.

Examples of antituberculous agents include isoniazid, ethambutol, paraaminosalicylic acid and the like. Examples of the hormonal agent include prednisolone, sodium prednisolone, dexamethasone sodium sulfate, betamethasone sodium phosphate, hexestrol phosphate, hexestrol acetate, and methimazole. As a narcotic antagonist, for example,
Levallorphan tartrate, nalorphine hydrochloride, naloxone hydrochloride and the like. Examples of the bone resorption inhibitor include ipriflavone and the like. Examples of the bone formation promoter include BMP, PTH, TGF-β, IGF
Polypeptide such as -1, (2R, 4S)-(-)-N- [4- (diethoxyphosphorylmethyl) phenyl] -1,2,4,5-tetrahydro-
4-methyl-7,8-methylenedioxy-5-oxo-3-benzothiepin-2-carboxamide, 2- (3-pyridyl) -ethane-1,1
-Diphosphonic acid and the like. Examples of the angiogenesis inhibitor include, for example, angiogenesis inhibitor steroids (see Science, Vol. 221, p. 719 (1983)), fumagillin (see European Patent Publication No. 325199), and fumagillol derivatives (European Patent Publication No. 357061). , 3590
No. 36, No. 386667, and No. 415294). Examples of vitamins include cyanocobalamin, thiamine, ascorbic acid, pantothenic acid and the like.

The above-mentioned pharmaceutically active ingredient may be a pharmacologically acceptable salt. Such salts include, for example, inorganic acids (eg, hydrochloric acid, sulfuric acid, nitric acid, etc.), organic acids (eg,
Carbonic acid, bicarbonate, succinic acid, acetic acid, propionic acid, trifluoroacetic acid, etc.), inorganic bases (eg, alkali metal salts such as sodium and potassium, alkaline earth metal salts such as calcium and magnesium, etc.) and organic base compounds (examples) , Organic amines such as triethylamine, and basic amino acids such as arginine).

Among the above-mentioned pharmaceutically active ingredients, those which are highly sensitive to moisture are modified during the preparation by ordinary preparation techniques and are difficult to handle. The present invention can be applied to such a component having a high sensitivity to moisture, and provides a new method for formulating such a pharmaceutically active ingredient. In addition, a component that is highly sensitive to moisture means a chemical change (decomposition, coloring, etc.) due to the presence of moisture.
Alternatively, it is a component that causes a physical change (such as a change in crystallinity). The pharmaceutically active ingredient is preferably a bioactive peptide, an antibiotic, a bronchodilator, an antilipidemic agent, or a vitamin. The pharmaceutically active ingredient is more preferably an antilipidemic agent, especially 3R, 5S-(+)-erythro- (E)-.
7- [4- (4-fluorophenyl) -2,6-diisopropyl-5-methoxymethyl-pyrid-3-yl]-
Sodium 3,5-dihydroxy-hept-6-enoate is preferred.

Examples of the sweetener include starch sugar, reduced maltose, sorbitol, sugar, fructose, lactose, honey, xylitol, saccharin, licorice and its extract, glycyrrhizic acid, sweet tea, aspartame and the like. Among them, aspartame having high sensitivity to moisture is preferable. In addition to the above, the solid composition of the present invention may further contain other excipients, disintegrants, binders, fluidizers, lubricants, and the like generally used in the production of pharmaceuticals or foods. Good. Such other excipients include, for example,
Lactose, starch, sucrose, crystalline cellulose, anhydrous calcium hydrogen phosphate, calcium carbonate and the like. Examples of the disintegrant include low-substituted hydroxypropylmethylcellulose, carboxymethylcellulose, carboxymethylcellulose calcium, carmellose, croscarmellose sodium, carboxymethyl starch sodium, partially pregelatinized starch, crospovidone, and the like. Examples of the binder include methylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, sodium carboxymethylcellulose, pregelatinized starch, gum arabic, agar, gelatin, tragacanth, sodium alginate, polyvinylpyrrolidone, and polyvinyl alcohol.
Examples of the fluidizing agent include hydrous silicon dioxide, light anhydrous silicic acid, synthetic aluminum silicate, synthetic hydrotalcite, dried aluminum hydroxide gel, kaolin, calcium silicate, and magnesium aluminate metasilicate. As lubricants, magnesium stearate, calcium stearate, stearic acid, talc,
Examples thereof include sodium lauryl sulfate, hydrogenated vegetable oil, microcrystalline wax, sucrose fatty acid ester, and polyethylene glycol.

Although the production of the solid composition of the present invention is carried out using a technique known per se, the D-mannitol of the present invention may be used in a form preliminarily produced in the production step.
Also, it may be added in the form of raw material crystals and formed during the preparation of the preparation.

The D-mannitol of the present invention retains its original chemical and biological properties and has excellent compoundability and moldability due to an increase in the number of bonding points due to microcrystallization of primary particles. Very useful as an excipient. Also,
According to the production method of the present invention, D-mannitol can be produced simply and safely. The present invention greatly contributes to the design of new formulations and the development of formulation technology.

[0024]

Next, the present invention will be described in more detail with reference to comparative examples and examples, but the present invention is not limited to these examples. In addition, β type and δ type D-
The mannitol crystal is a microscope (MICROSCOP
E), 18, 279-285 (1970). Comparative Example 1 20 g of purified water was added to 100 g of the β-form D-mannitol crystal, and the mixture was stirred in a mortar for 3 minutes to sufficiently familiarize it, followed by vacuum drying (40 ° C., 16 hours). Powder obtained after sizing using a 16-mesh sieve (specific surface area: 0.5 m ² / g)
Was compression molded under the following conditions. Molding machine: Autograph (Shimadzu Corporation) Compression speed: 10 mm / min Punch: 10 mmφ, plane weight: 400 mg

Comparative Example 2 375 g of purified water was added to 1500 g of β-form D-mannitol crystals.
Agitated granulator (Powrex, Vertical Granulator VG
10 type) and became fully familiar (200rpm)
m, 2 minutes), followed by vacuum drying (40 ° C., 16 hours). The dried product is sized by a power mill (Showa Chemical, P-3 type punching size: 1.5 mmφ), and the obtained powder (specific surface area: 0.5 m ² / g; hereinafter, referred to as β-type crystal AG) is shown below. , And tableted under the following conditions. Tableting machine: Collect 19AWC (Kikusui Seisakusho) Tableting pressure: 1200 to 2400 kg / cm ² rotations: 30 rpm Punch: 8.0 mmφ, corner plane weight: 180 mg

Comparative Example 3 1267.2 g of β-form D-mannitol crystals and 316.8 g of phenylpropanolamine hydrochloride were mixed, and 240 g of purified water was added thereto with a stirring granulator (Powrex, Vertical Gram).
nulator VG10), and after fully familiarized (200 rpm, 2 minutes), vacuum dried (40 ° C., 16 hours). The resulting powder 79 was sized using a power mill (Showa Chemical, P-3 type, punching size: 1.5 mmφ).
The mixture was mixed at a ratio of 8.0 g of magnesium stearate to 2.0 g and tableted under the following conditions. Tableting machine: Collect 19 AWC (Kikusui Seisakusho) Tableting pressure: 1000-3000 kg / cm ² rotations: 30 rpm Punch: 8.0 mmφ, corner plane weight: 180 mg

Comparative Example 4 375 g of purified water was added to 1500 g of β-form D-mannitol crystals.
Agitated granulator (Powrex, Vertical Granulator VG
10 type) and became fully familiar (200rpm)
m, 2 minutes), followed by vacuum drying (40 ° C., 16 hours). The dried product was sized with a power mill (Showa Chemical, P-3 type, punching size: 1.5 mmφ), and the obtained β-type crystal AG
(Specific surface area: 0.5 m ² / g) in the following formulation amount and dry granulation. The obtained slug was sized by a power mill (Showa Kagaku, P-3 type, punching size: 2.0 mmφ). Equipment: Roller compactor (FREUND,
Model-mini) Roll speed: 3 rpm Powder supply speed: 20 rpm Molding pressure: 50 kg / cm ² Flake thickness: about 2.0 mm

Example 1 Purified water (20 g) was added to δ-form D-mannitol crystal (100 g), and the mixture was stirred in a mortar for 3 minutes to sufficiently familiarize it, followed by vacuum drying (40 ° C., 16 hours). Powder obtained after sieving using a 16-mesh sieve (specific surface area: 1.9 m ² / g)
Was compression molded under the same conditions as in Comparative Example 1. In addition, similarly, molded articles using untreated δ-type D-mannitol crystals (specific surface area 0.7 m ² / g) and β-type D-mannitol crystals (specific surface area 0.5 m ² / g) were used as control molded articles. Was prepared. The hardness of the obtained molded product and the molded product of Comparative Example 1 were measured with a tablet breaking strength measuring device (Toyama Sangyo). As a result, there was no difference in hardness among the untreated δ-type crystal, untreated β-type crystal and molded product using the β-type crystal treated product (Comparative Example 1) under the molding conditions. FIG. 1 shows that the molded product of this example had an extremely high hardness as compared with a molded product using an untreated δ-crystal or β-crystal treatment. Further, the D-mannitol of this example was observed from a scanning electron microscope and, unlike the raw material crystal shown in FIG. 3, was a particle having a porous shape composed of an aggregate of fine D-mannitol crystals. FIG. 4 shows that the crystal transition from δ-form to β-form was confirmed as a result of the measurement of the precipitation spectrum.

Example 2 375 g of purified water was added to 1500 g of δ-form D-mannitol crystals.
Agitated granulator (Powrex, Vertical Granulator VG
(Type 10) and processed well (200
rpm, 2 minutes), followed by vacuum drying (40 ° C., 16 hours). The dried product is sized by a power mill (Showa Chemical, P-3 type, punching size: 1.5 mmφ), and the obtained powder (specific surface area: 1.9 m ² / g; hereinafter, referred to as δ-type crystal AG)
Was mixed in the following formulation and tableted. The hardness of the obtained molded product and the molded product of Comparative Example 2 were measured with a tablet breaking strength measuring device (Toyama Sangyo). As a result, the molded article of the present invention exhibited extremely excellent moldability, and sufficient hardness was obtained at a low tableting pressure, whereas the molded article of Comparative Example 2 was poor in moldability and had a tableting pressure of 1800 kg / cm ^2. FIG. 5 shows that capping occurred and molding was impossible. Tableting machine: Collect 19AWC (Kikusui Seisakusho) Tableting pressure: 600-1800 kg / cm ² rotations: 30 rpm Punch: 8.0 mmφ, corner plane weight: 180 mg

Example 3 1267.2 g of δ-form D-mannitol crystals and 316.8 g of phenylpropanolamine hydrochloride were mixed, and 240 g of purified water was added thereto, followed by stirring with a stirring granulator (Powrex, Vertical Gram).
nulator VG10), and after fully familiarized (200 rpm, 2 minutes), dried under vacuum (40 ° C., 16 hours). Dried product is power mill (Showa Chemical, P-3 type,
After sizing at a punching size of 1.5 mmφ, 792.0 g of the obtained powder was added to 8.0 g of magnesium stearate.
g and mixed under the following conditions. The hardness of the molded product was measured with a tablet breaking strength measuring device (Toyama Sangyo). As a result, the molded article of this example exhibited extremely excellent moldability and obtained sufficient hardness, whereas the molded article of Comparative Example 3 using β-form D-mannitol had poor moldability. FIG. 6 shows that capping occurred at a tableting pressure of 2000 kg / cm ² or more and molding was impossible. Tableting machine: Collect 19 AWC (Kikusui Seisakusho) Tableting pressure: 1000-3000 kg / cm ² rotations: 30 rpm Punch: 8.0 mmφ, corner plane weight: 180 mg

Example 4 375 g of purified water was added to 1500 g of δ-form D-mannitol crystals.
Agitated granulator (Powrex, Vertical Granulator VG
10 type) and became fully familiar (200rpm)
m, 2 minutes), followed by vacuum drying (40 ° C., 16 hours). Power mill (Showa Chemical, P-3 type, punching size:
After sizing at 1.5 mmφ, the obtained δ-type crystal AG (specific surface area: 1.9 m ² / g) was mixed in the following formulation amount, and Comparative Example 4 was prepared.
Dry granulation was performed under the same conditions as described above. The resulting slug is converted to a power mill (Showa Chemical, P-3 type, punching size 2.0 m).
(mφ), the granule strength was measured using a granule strength measuring device (Okada Seiko, Grano). The result is shown in FIG.
Shown in From these measurement results, the average granule strength of both was calculated (n = 30; 1.0 to 2.0 mm). As a result, the weight of the granules of this example was 601.7 g, whereas that of the granules of Comparative Example 4 was 292. It was 0 g. As is clear from the results, in the formulation of this example using the δ-type crystal AG, strong granules were obtained and the amount of fine powder was small. On the other hand, β-form D-mannitol crystal A
In the formulation of Comparative Example 4 using G, the obtained granules were insufficient in strength, so that capsule filling was difficult.

Example 5 A stirred granulator (Powrex, Vertical Granulator VG10) charged with 1000 g of δ-form D-mannitol crystals.
, 50, 100, 150, 200, 250 and 300 g (5 to 30% w / w, based on the weight of mannitol) of purified water were added thereto all at once, stirred at 200 rpm for 2 minutes, and then vacuum dried (40 ° C. , 16 hours). Each dried product was sized with a power mill (Showa Kagaku, P-3 type, punching size: 1.5 mmφ), and the resulting powders (specific surface areas of 1.0, 1.4, 1.7, 1. 9, 3.5 and 2.7
m ² / g) under the following conditions. The hardness of the molded product was measured with a tablet breaking strength measuring instrument (Toyama Sangyo). Also,
The specific surface area of the obtained powder was measured by the BET method. As a result, it was recognized that the amount of water used for the treatment affected the specific surface area of the crystallized product, and thus the hardness of the molded product, as shown in FIG. Tableting machine: Collect 19AWC (Kikusui Seisakusho) Tableting pressure: 2000 kg / cm ² rotations: 30 rpm Punch: 8.0 mmφ, corner plane weight: 180 mg

Example 6 5.043 kg of δ-form D-mannitol crystals was placed in a high-shear mixer (Loedige MGT-30) to give 3R, 5S-crystals.
(+)-Erythro (E) -7- [4- (4-fluorophenyl) -2,6-diisopropyl-5-methoxymethyl-pyrid-3-yl] -3,5-dihydroxy-hept-6-ene Sodium acid (cerivastatin) 6g,
It was treated with a granulation liquid consisting of 108 g of polyvinylpyrrolidone (polyvidone 25) and 420 g of purified water. The wet granulated mass is transferred to a fluidized bed dryer (inlet air temperature: 60 to
(80 ° C), and then rubbed, and the residual moisture was 1.5
% Or less. The granules are sieved (vibrating sieve, 0.8
mm) and then mixed with 162 g of crospovidone and 81 g of magnesium stearate. The mixture was tableted under the following conditions to obtain tablets having suitable hardness. Tableting machine: Kilian T200 Tableting pressure: 6-8 kN Punch: 6 mmφ, 9 mm radius of curvature Tablet weight: 90 mg

[Brief description of the drawings]

FIG. 1 shows the hardness of a molded article of Example 1 and a control molded article of Comparative Example 1. In the figure, circles represent δ-form D-mannitol crystals,
Squares indicate β-form D-mannitol crystals, hollows indicate untreated, and solid coatings indicate results of molded products using the treated products.

FIG. 2 shows a scanning electron microscope image of D-mannitol of the present invention obtained in Example 1.

FIG. 3 shows a scanning electron microscope image of a δ-form D-mannitol crystal.

FIG. 4 shows powder X-ray diffraction patterns of D-mannitol and δ-type and β-type D-mannitol of the present invention.

FIG. 5 shows the hardness of the molded product of Example 2 and the control molded product of Comparative Example 2;

FIG. 6 shows the hardness of the molded product of Example 3 and the control molded product of Comparative Example 3;

FIG. 7 shows the strength of the molded product of Example 4 and the control molded product of Comparative Example 4;

FIG. 8 shows the relationship between the amount of purified water used for the treatment of δ-type crystals and the physical properties of D-mannitol obtained. In the figure, the numerical value in parentheses indicates the weight% of purified water used relative to the weight of crystal of δ-form D-mannitol.

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Fritz Schuckler 51373 Leverkusen Germany Walter Flex Straßer 19 (72) Inventor Norbert Peeringer 79379 Mülheim Germany Germany Fritz Fischer Strasse 10 (72) Inventor Person Shinji Maegata 833-147 Oharanaka, Koka-cho, Koka-gun, Shiga Prefecture (56) References JP-A-3-86839 (JP, A) JP-A-59-1118058 (JP, A) US Patent 5,356,896 (US, A) ( 58) Field surveyed (Int. Cl. ⁷ , DB name) A61K 47/10 C07C 31/26

Claims (2)

(57) [Claims] 1. A method for producing D-mannitol having a specific surface area of about 1 m ² / g or more, comprising treating a δ-form D-mannitol crystal with a water-soluble solvent and drying. Wherein the water-soluble solvent, process according to claim 1, wherein is used in an amount of from about 3 to about 70 w / w% of δ-type D- mannitol crystals.