US20020173530A1 - Single morphic forms of metalloproteinase inhibitors - Google Patents

Single morphic forms of metalloproteinase inhibitors Download PDF

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Publication number
US20020173530A1
US20020173530A1 US10/105,956 US10595602A US2002173530A1 US 20020173530 A1 US20020173530 A1 US 20020173530A1 US 10595602 A US10595602 A US 10595602A US 2002173530 A1 US2002173530 A1 US 2002173530A1
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Prior art keywords
dosage form
form according
morphic
morphic form
single morphic
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US10/105,956
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Ruth Katz
Graham Evans
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Individual
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Individual
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Priority claimed from GBGB9823335.6A external-priority patent/GB9823335D0/en
Priority claimed from GBGB9823336.4A external-priority patent/GB9823336D0/en
Application filed by Individual filed Critical Individual
Priority to US10/105,956 priority Critical patent/US20020173530A1/en
Publication of US20020173530A1 publication Critical patent/US20020173530A1/en
Abandoned legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K5/00Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
    • C07K5/04Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
    • C07K5/06Dipeptides
    • C07K5/06008Dipeptides with the first amino acid being neutral
    • C07K5/06017Dipeptides with the first amino acid being neutral and aliphatic
    • C07K5/06034Dipeptides with the first amino acid being neutral and aliphatic the side chain containing 2 to 4 carbon atoms
    • C07K5/06052Val-amino acid
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00

Definitions

  • This invention relates to new crystalline forms of known compounds, having therapeutic utility, that are metalloproteinase inhibitors.
  • This invention is based on the surprising discovery that Compounds A and B exists in more than one morphic form. Further, it has been found that, by comparison with the produces whose preparation has previously been reported, novel compounds can be isolated as a single morphic form (this term is used herein to describe a crystalline form having a single morphology).
  • a novel morphic form according to the present invention is reproducibly isolable as a single crystalline species. It may be characterised by its crystalline structure, its X-ray powder diffraction (XRPD) pattern, its DSC thermogram, and/or by a different melting point from that previously reported. It may be essentially free of bound solvent, non-hygroscopic, and more thermodynamically stable, i.e. both more chemically and physically stable than the compound as previously reported. This stability makes the novel species particularly suitable for formulation into pharmaceutical formulations, following milling and, if appropriate, compression. It may also provide improved bioavailability.
  • XRPD X-ray powder diffraction
  • the present invention depends in part on the solvent chosen for the crystallisation. Suitable procedures are shown in the Examples, below. Other procedures have produced other morphic forms of the same compounds, but these generally have properties that are unsuitable for the purposes of the present invention, e.g. not being isolable as a single morphic form.
  • One criterion for choosing the desired product is by observation of a single sharp peak in the DSC thermogram. Another may be a high melting point, depending on the desire for increased solubility or stability.
  • compounds of the invention have a morphic or crystalline form that is unchanged on milling. They are therefore particularly suitable for use in solid, discrete pharmaceutical unit dosage forms such as filled capsules, etc. Further, they are unchanged under compression used in a tableting process.
  • a compound of the invention is mixed with a pharmaceutically acceptable carrier.
  • suitable carriers and also suitable doses can readily be determined by one skilled in the art or are known; see also the PCT publications identified above, the contents of which are incorporated herein by reference.
  • Compound A is dissolved with heating to 50° C. in 1.5 volumes of isopropyl acetate under an atmosphere of nitrogen. To this solution is added 0.56 volumes of heptane, and the mixture is slowly cooled to 10° C. The solid is isolated by filtration, washed with 1:1 isopropyl acetateheptane, and dried in vacuo at approximately 65° C.
  • the melting point of the product is 148° C.
  • the XRPD trace is shown in FIG. 1. The major peaks are at 8.0, 9.1, 10.7, 12.4, 13.6 and 17.0.
  • Compound B is dissolved with heating in 3 volumes of isopropyl acetate under an atmosphere of nitrogen, and the water content assessed by Karl Fischer titration to be less than approximately 0.5%.
  • the solution is heated to reflux with stirring and 2.5 volumes of heptane is added slowly. Crystallisation is initiated by the addition of seed crystals at 80-85° C.
  • the suspension is allowed to cool to ambient temperature and the solid isolated by filtration.
  • the filter cake is washed with a mixture of isopropyl acetate (1.6 volumes) and heptane (1.25 volumes) and dried in vacuo at approximately 50° C.
  • the melting point of the product is 164° C.
  • the XRPD trace is shown in FIG. 2. The major peaks are at 7.6, 8.0, 15.3, 16.1, 16.5 and 17.8.

Abstract

The present invention pertains to single morphic forms of a compound selected from 2S-[4-(2,5-dioxopyrrolidin-1-yl)-2S-mercaptobutyrylamino]4-methylpentanoic acid (2,2-dimethyl-1S-methylcarbamoylpropyl)amide and 2S-[2S-mercapto-4-(3,4,4-trimethyl-2,5-dioxoimidazolidin-1-yl)butyrylamino]-4-methylpentanoic acid (2,2-dimethyl-1S-methylcarbamoylpropyl)amide, isolable as such.

Description

    FIELD OF THE INVENTION
  • This invention relates to new crystalline forms of known compounds, having therapeutic utility, that are metalloproteinase inhibitors. [0001]
  • BACKGROUND OF THE INVENTION
  • As potential therapeutic agents, in the treatment of inflammatory and other conditions, there is considerable interest in compounds that have the ability to inhibit matrix metalloproteinases and also the release of tumour necrosis factor. Two known compounds of this type are 2S-[4-(2,5-dioxopyrrolidin-1-yl)-2S-mercaptobutyrylamino]4-methylpentanoic acid (2,2-dimethyl-1S-methylcarbamoylpropyl)amide (herein Compound A) and 2S-[2S-mercapto-4-(3,4,4-trimethyl-2,5-dioxoimidazolidin-1-yl)butyrylamino]-4methylpentanoic acid (2,2-dimethyl-1S-methylcarbamoylpropyl)amide (herein Compound B). Compound A is disclosed in WO-A-96/11209 and WO-A-98/39024. Compound B is disclosed in WO-A-97/12902 (generically) and WO-A-98/39024 (specifically). [0002]
  • SUMMARY OF THE INVENTION
  • This invention is based on the surprising discovery that Compounds A and B exists in more than one morphic form. Further, it has been found that, by comparison with the produces whose preparation has previously been reported, novel compounds can be isolated as a single morphic form (this term is used herein to describe a crystalline form having a single morphology). [0003]
  • A novel morphic form according to the present invention is reproducibly isolable as a single crystalline species. It may be characterised by its crystalline structure, its X-ray powder diffraction (XRPD) pattern, its DSC thermogram, and/or by a different melting point from that previously reported. It may be essentially free of bound solvent, non-hygroscopic, and more thermodynamically stable, i.e. both more chemically and physically stable than the compound as previously reported. This stability makes the novel species particularly suitable for formulation into pharmaceutical formulations, following milling and, if appropriate, compression. It may also provide improved bioavailability.[0004]
  • DESCRIPTION OF THE DRAWINGS
  • The accompanying drawings are XRPD traces obtained for Compounds A and B, respectively. [0005]
  • DESCRIPTION OF THE INVENTION
  • The present invention depends in part on the solvent chosen for the crystallisation. Suitable procedures are shown in the Examples, below. Other procedures have produced other morphic forms of the same compounds, but these generally have properties that are unsuitable for the purposes of the present invention, e.g. not being isolable as a single morphic form. [0006]
  • One criterion for choosing the desired product is by observation of a single sharp peak in the DSC thermogram. Another may be a high melting point, depending on the desire for increased solubility or stability. [0007]
  • As indicated above, compounds of the invention have a morphic or crystalline form that is unchanged on milling. They are therefore particularly suitable for use in solid, discrete pharmaceutical unit dosage forms such as filled capsules, etc. Further, they are unchanged under compression used in a tableting process. [0008]
  • For the purposes of formulation, a compound of the invention is mixed with a pharmaceutically acceptable carrier. Examples of suitable carriers and also suitable doses can readily be determined by one skilled in the art or are known; see also the PCT publications identified above, the contents of which are incorporated herein by reference. [0009]
  • The following Examples illustrate how single morphic forms according to the present invention may be prepared. [0010]
  • EXAMPLE 1
  • Compound A is dissolved with heating to 50° C. in 1.5 volumes of isopropyl acetate under an atmosphere of nitrogen. To this solution is added 0.56 volumes of heptane, and the mixture is slowly cooled to 10° C. The solid is isolated by filtration, washed with 1:1 isopropyl acetateheptane, and dried in vacuo at approximately 65° C. [0011]
  • The melting point of the product is 148° C. The XRPD trace is shown in FIG. 1. The major peaks are at 8.0, 9.1, 10.7, 12.4, 13.6 and 17.0. [0012]
  • EXAMPLE 2
  • Compound B is dissolved with heating in 3 volumes of isopropyl acetate under an atmosphere of nitrogen, and the water content assessed by Karl Fischer titration to be less than approximately 0.5%. The solution is heated to reflux with stirring and 2.5 volumes of heptane is added slowly. Crystallisation is initiated by the addition of seed crystals at 80-85° C. The suspension is allowed to cool to ambient temperature and the solid isolated by filtration. The filter cake is washed with a mixture of isopropyl acetate (1.6 volumes) and heptane (1.25 volumes) and dried in vacuo at approximately 50° C. [0013]
  • The melting point of the product is 164° C. The XRPD trace is shown in FIG. 2. The major peaks are at 7.6, 8.0, 15.3, 16.1, 16.5 and 17.8. [0014]

Claims (12)

1. A single morphic form of a compound selected from the group consisting of 2S-[4-(2,5-dioxopyrrolidin-1-yl)-2S-mercaptobutyrylamino]-4-methylpentanoic acid (2,2-dimethyl-1S-methylcarbamoylpropyl)amide and 2S-[2S-mercapto-4-(3,4,4-trimethyl-2,5-dioxoimidazolidin-1-yl)butyrylamino]-4-methylpentanoic acid (2,2-dimethyl-1S-methylcarbamoylpropyl)amide, isolable as such.
2. The single morphic form according to claim 1, which is non-hygroscopic.
3. The single morphic form according to claim 1, which is solvent-free.
4. The single morphic form of the first compound according to claim 1, having peaks at 8.0, 9.1, 10.7, 12.4, 13.6 and 17.0, by X-ray powder diffraction.
5. The single morphic form of the second compound according to claim 1, having peaks at 7.6, 8.0, 15.3, 16.1, 16.5 and 17.8, by X-ray powder diffraction.
6. A pharmaceutical unit dosage form comprising a single morphic form according to claim 1, obtainable by milling, and a pharmaceutically-acceptable carrier.
7. The dosage form according to claim 6, which is a filled capsule.
8. The dosage form according to claim 6, which is a compressed tablet.
9. A method for the manufacture of a dosage form according to claim 6, which comprises milling the morphic form, mixing it with the carrier, and optionally also compressing the mixture, wherein the structure of the morphic form is unchanged by the method.
10. The method for the manufacture of a dosage form according to claim 9, wherein the dosage form is a filled capsule.
11. The method for the manufacture of a dosage form according to claim 9, wherein the dosage form is a compressed tablet.
12. The single morphic form according to claim 2, which is solvent free.
US10/105,956 1998-10-23 2002-03-21 Single morphic forms of metalloproteinase inhibitors Abandoned US20020173530A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/105,956 US20020173530A1 (en) 1998-10-23 2002-03-21 Single morphic forms of metalloproteinase inhibitors

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
GBGB9823335.6A GB9823335D0 (en) 1998-10-23 1998-10-23 Compounds
GB9823335.6 1998-10-23
GB9823336.4 1998-10-23
GBGB9823336.4A GB9823336D0 (en) 1998-10-23 1998-10-23 Compounds
US09/425,572 US6277827B1 (en) 1998-10-23 1999-10-22 Single morphic forms of metalloproteinase inhibitors
US09/924,839 US20020025980A1 (en) 1998-10-23 2001-08-08 Single morphic forms of metalloproteinase inhibitors
US10/105,956 US20020173530A1 (en) 1998-10-23 2002-03-21 Single morphic forms of metalloproteinase inhibitors

Related Parent Applications (1)

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US09/924,839 Continuation US20020025980A1 (en) 1998-10-23 2001-08-08 Single morphic forms of metalloproteinase inhibitors

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US20020173530A1 true US20020173530A1 (en) 2002-11-21

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US09/425,572 Expired - Fee Related US6277827B1 (en) 1998-10-23 1999-10-22 Single morphic forms of metalloproteinase inhibitors
US09/924,839 Abandoned US20020025980A1 (en) 1998-10-23 2001-08-08 Single morphic forms of metalloproteinase inhibitors
US10/105,956 Abandoned US20020173530A1 (en) 1998-10-23 2002-03-21 Single morphic forms of metalloproteinase inhibitors

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US09/425,572 Expired - Fee Related US6277827B1 (en) 1998-10-23 1999-10-22 Single morphic forms of metalloproteinase inhibitors
US09/924,839 Abandoned US20020025980A1 (en) 1998-10-23 2001-08-08 Single morphic forms of metalloproteinase inhibitors

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US (3) US6277827B1 (en)
EP (1) EP1123308A1 (en)
JP (1) JP2002528461A (en)
AU (1) AU6352199A (en)
CA (1) CA2347911A1 (en)
WO (1) WO2000024763A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2001860A2 (en) * 2006-04-06 2008-12-17 Wisconsin Alumni Research Foundation 19-nor-vitamin d analogs with 1,2,or 3,2 heterocyclic ring
ES2700117T3 (en) * 2010-08-31 2019-02-14 Chimerix Inc Derivatives of phosphonate ester and methods of synthesis thereof
ES2685819T3 (en) 2013-11-15 2018-10-11 Chimerix, Inc. Morphic forms of hexadecyloxypropyl phosphonate esters

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ288436B6 (en) * 1994-10-05 2001-06-13 Darwin Discovery Ltd Peptidyl derivatives, their therapeutic use as inhibitors of metalloproteinases and pharmaceutical preparation in which they are comprised
CN1145637C (en) * 1995-10-05 2004-04-14 达尔文发现有限公司 Thio-substituted peptides as inhibitors for metalloproteinases and tnfliberation
AU741903C (en) * 1997-03-03 2002-09-05 Darwin Discovery Limited Selective MMP inhibitors having reduced side-effects

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Publication number Publication date
JP2002528461A (en) 2002-09-03
US6277827B1 (en) 2001-08-21
AU6352199A (en) 2000-05-15
EP1123308A1 (en) 2001-08-16
WO2000024763A1 (en) 2000-05-04
US20020025980A1 (en) 2002-02-28
CA2347911A1 (en) 2000-05-04

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