WO2003000262A1 - Vinyl phenyl derivatives as glk activators - Google Patents
Vinyl phenyl derivatives as glk activators Download PDFInfo
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- WO2003000262A1 WO2003000262A1 PCT/GB2002/002903 GB0202903W WO03000262A1 WO 2003000262 A1 WO2003000262 A1 WO 2003000262A1 GB 0202903 W GB0202903 W GB 0202903W WO 03000262 A1 WO03000262 A1 WO 03000262A1
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- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
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- A61P3/00—Drugs for disorders of the metabolism
- A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
- A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
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- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
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- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
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- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
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- C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
- C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D277/32—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
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- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D307/68—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
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- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/12—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
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- C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
- C07D413/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring-member bond
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- C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
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- C07D417/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
Definitions
- the present invention relates to compounds which activate glucokinase (GLK), leading to a decreased glucose threshold for insulin secretion.
- GLK glucokinase
- the compounds are predicted to lower blood glucose by increasing hepatic glucose uptake.
- Such compounds may have utility in the treatment of Type 2 diabetes and obesity.
- the invention also relates to pharmaceutical compositions comprising a compound of the invention, and use of such a compound in the conditions described above.
- the main plasma membrane glucose transporter is GLUT2.
- G-6-P glucose-6-phosphate
- GLK glucokinase
- GLK has a high (6-lOmM) Km for glucose and is not inhibited by physiological concentrations of G-6-P [1].
- GLK expression is limited to a few tissues and cell types, most notably pancreatic ⁇ -cells and liver cells (hepatocytes) [1].
- GLK activity is rate limiting for glucose utilisation and therefore regulates the extent of glucose induced insulin secretion and hepatic glycogen synthesis. These processes are critical in the maintenance of whole body glucose homeostasis and both are dysfunctional in diabetes [2].
- Type 2 maturity-onset diabetes of the young the diabetes is caused by GLK loss of function mutations [3, 4].
- Hyperglycaemia in MODY-2 patients results from defective glucose utilisation in both the pancreas and liver [5].
- Defective glucose utilisation in the pancreas of MODY-2 patients results in a raised threshold for glucose stimulated insulin secretion. Conversely, rare activating mutations of GLK reduce this threshold resulting in familial hyperinsulinism [6, 7].
- hepatic glucokinase activity is also decreased in type 2 diabetics [8].
- GLK GLK regulatory protein
- the GLK/GLKRP complex is stabilised by fructose-6-phosphate (F6P) binding to the GLKRP and destabilised by displacement of this sugar phosphate by fructose- 1 -phosphate (F1P).
- F1P is generated by fructokinase mediated phosphorylation of dietary fructose. Consequently, GLK/GLKRP complex integrity and hepatic GLK activity is regulated in a nutritionally dependent manner as F6P is elevated in the post-absorptive state whereas F1P predominates in the post-prandial state.
- the pancreatic ⁇ -cell expresses GLK in the absence of GLKRP.
- ⁇ -cell GLK activity is regulated exclusively by the availability of its substrate, glucose.
- Small molecules may activate GLK either directly or through destabilising the GLK/GLKRP complex.
- the former class of compounds are predicted to stimulate glucose utilisation in both the liver and the pancreas whereas the latter are predicted to act exclusively in the liver.
- compounds with either profile are predicted to be of therapeutic benefit in treating Type 2 diabetes as this disease is characterised by defective glucose utilisation in both tissues.
- WO0058293 and WO 01/44216 a series of benzylcarbamoyl compounds are described as glucokinase activators.
- each Z is independently a direct bond, C 2-6 alkenylene or a group of the formula
- each Y is independently selected from aryl-Z -, heterocyclyl-Z -, C 3-7 cycloalkyl-Z -,
- each Y is independently optionally substituted by up to 3 R 4 groups; each R 4 is independently selected from halo, -CH 3-a F a , CN, NO 2 , NH , C 1-6 alkyl, -OC 1-6 alkyl, -COOH, -C(O)OC 1-6 alkyl, OH or phenyl optionally substituted by C ⁇ -6 alkyl or -C(O)OC 1-6 alkyl, c 1 1 or R -X -, where X is independently as defined in X above and R is selected from hydrogen, C 1-6 alkyl, -CH 3-a F a , phenyl, naphthyl, heterocyclyl or C 3- cycloalkyl; and R 5 is optionally substituted by hal
- R 6 is selected from hydrogen, C 1-6 alkyl, -O-C 1-6 alkyl, -SO 2 C 1-6 alkyl, -(CH 2 ) 0-3 OH;
- R 7 is independently selected from hydrogen, C 1-6 alkyl or -C 2-4 alkyl-O-C 1-4 alkyl; each a is independently 1, 2 or 3; p is an integer between 0 and 2; q is an integer between 0 and 2; and p + q ⁇ 4.
- each R 1 is independently selected from OH, (CH 2 ) 1-4 OH, CH 3-a F a , (CH ) 1-4 CH 3-a F a ,
- each R 2 is the group Y-X- wherein each X is a linker independently selected from
- each Y is independently selected from phenyl(CH 2 )o-2, naphthyl(CH 2 )o-2, heterocyclyl(CH 2 ) 0-2 , C 3-7 cycloalkyl(CH 2 ) 0- 2, C 1-6 alkyl, OC 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, or
- R 6 is selected from hydrogen, C 1-6 alkyl, OC 1-6 alkyl, SO 2 C 1-6 alkyl, (CH 2 ) 0-3 OH. According to a further feature of the invention there is provide a compound of Formula (lb) or a salt, solvate or pro-drug thereof;
- each R 1 is independently selected from OH, -(CH 2 ) 1-4 OH, -CH 3-a F a , -(CH 2 ) 1- CH 3-a F a , -OCH 3-a F a , halo, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, NO 2 , NH 2 , -NH-C 1-4 alkyl,
- each R is the group Y-X- wherein each X is a linker independently selected from: -Z-, -O-Z-, -O-Z-O-Z-, -C(O)O-Z-, -OC(O)-Z-, -S-Z-, -SO-Z-, -SO 2 -Z-, -N(R 7 )-Z-,
- each Z is independently a direct bond, C 2-6 alkenylene or a group of the formula
- each Y is independently selected from aryl-Z 1 -, heterocyclyl-Z 1 -, C ⁇ cycloalkyl-Z 1 -, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, -(CH 2 ) 1-4 CH 3-a F a or -CH(OH)CH 3-a F a ; wherein each Y is independently optionally substituted by up to 3 R 4 groups; each R 4 is independently selected from halo, -CH 3-a F a , CN, NO 2 , NH 2 , C 1-6 alkyl, -OC 1-6 alkyl, -COOH, -C(O)OC 1-6 alkyl, OH or phenyl optionally substituted by C 1-6 alkyl or -C(O)OC 1-6 alkyl, or R -X -, where X is independently as
- R 6 is selected from hydrogen, C 1-6 alkyl, -O-C 1-6 alkyl, -SO 2 C 1-6 alkyl, -(CH 2 ) 0-3 OH;
- R 7 is independently selected from hydrogen, C 1-6 alkyl or -C 2-4 alkyl-O-C 1- alkyl; each a is independently 1, 2 or 3; p is an integer between 0 and 2; . q is an integer between 0 and 2; and p + q ⁇ 4. with the proviso that:
- each R 1 is independently selected from OH, (CH 2 ) 1-4 OH, CH -a Fa, (CH 2 ) 1- CH 3-a F a ,
- each R 2 is the group Y-X- wherein each X is a linker independently selected from
- each Y is independently selected from phenyl(CH 2 )o -2 , naphthyl(CH 2 ) 0-2 , heterocyclyl(CH 2 )o -2 , C 3-7 cycloalkyl(CH 2 )o-2, C 1-6 alkyl, OC 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, or CH(OH)CH 3-a F a ; wherein each Y is independently optionally substituted by one or more R 4 groups; each R 4 is independently selected from halo, CH 3-a F a> OCH 3-a F a , CN, NO 2 , NH 2 ,
- R 6 is selected from hydrogen, C 1-6 alkyl, OC 1-6 alkyl, SO 2 C 1-6 alkyl, (CH 2 ) 0-3 OH; with the proviso that: (i) when R 3 is H, m is 0, n is 2 and one of the R 2 groups is phenyl-CH 2 -O-, then the other R 2 group must be other than CH 3 -S- or CH 3 -SO 2 -; and (ii) when R 3 is H, m is 1, n is 1 and R 2 is phenyl-CH -O-, then R 1 must be other than halo.
- Compounds of the invention may form salts which are within the ambit of the invention.
- Pharmaceutically acceptable salts are preferred although other salts may be useful in, for example, isolating or purifying compounds.
- aryl refers to phenyl, naphthyl or a partially saturated bicyclic carbocyclic ring containing between 8 and 12 carbon atoms, preferably between 8 and 10 carbon atoms.
- partially saturated bicyclic carbocyclic ring include: 1,2,3,4-tetrahydronaphthyl, indanyl, indenyl, l,2,4a,5,8,8a-hexahydronaphthyl or 1,3a- dihydropentalene.
- halo includes fluoro, chloro, bromo and iodo; preferably chloro, bromo and fluoro;. most preferably fluoro.
- -CH 3 . a F a wherein a is an integer between 1 and 3 refers to a methyl group in which 1, 2 or all 3 hydrogen are replaced by a fluorine atom. Examples include: trifluoromethyl, difluoromethyl and fluoromethylene
- An analogous notation is used with reference to the group -(CH 2 ) ⁇ -4 CH 3-a F a , examples include: 2,2-difluoroethyl and 3,3,3-trifluoropropyl.
- alkyl includes both straight and branched chain alkyl groups.
- C 1-4 alkyl includes propyl, isopropyl and tert-butyl.
- heteroaryl refers to a monocylic aromatic heterocyclic ring containing between 5-6 atoms of which at least one atom is chosen from nitrogen, sulphur or oxygen, which may, unless otherwise specified, be carbon or nitrogen linked, wherein a -CH 2 - group can optionally be replaced by a -C(O)- and sulphur atoms in a heterocyclic ring may be oxidised to S(O) or S(O) groups.
- heteroaryl examples include: thiazolidinyl, pyrrolidinyl, pyrrolinyl, 2-oxopyrrolidinyl, 2,5-dioxopyrrolidinyl, 1,1- dioxotetrahydrothienyl, 2,4-dioxoimidazolidinyl, 2-oxo-l ,3,4-(4-triazolinyl), 2-oxo-oxazolidininyl, 5,6-dihydrouracilyl, 1,2,4-oxadiazolyl, 4-oxothiazolidinyl, morpholinyl, furanyl, 2-oxotetrahydrofuranyl, tetrahydrofuranyl, thienyl, isoxazolyl, tetrahydropyranyl, piperidyl, piperazinyl, thiomorpholinyl, 1,1-dioxothiomorpholinyl, tetra
- heterocyclyl is a saturated, partially saturated or unsaturated, mono or bicyclic ring containing 3-12 atoms of which at least one atom is chosen from nitrogen, sulphur or oxygen, which may, unless otherwise specified, be carbon or nitrogen linked, wherein a -CH 2 - group can optionally be replaced by a -C(O)- and sulphur atoms in a heterocyclic ring may be oxidised to S(O) or S(O) 2 groups.
- a “heterocyclyl” is a saturated, partially saturated or unsaturated, mono or bicyclic ring (preferably monocyclic) containing 5 or 6 atoms of which 1 to 3 atoms are nitrogen, sulphur or oxygen, which may, unless otherwise specified, be carbon or nitrogen linked, wherein a -CH 2 - group can optionally be replaced by a -C(O)- or sulphur atoms in a heterocyclic ring may be oxidised to S(O) or S(O) 2 groups.
- heterocyclyl examples and suitable values of the term "heterocyclyl” are thiazolidinyl, pyrrolidinyl, pyrrolinyl, 2-pyrrolidonyl, 2,5-dioxopyrrolidinyl, 2-benzoxazolinonyl, 1,1- dioxotetrahydrothienyl, 2,4-dioxoimidazolidinyl, 2-oxo-l,3,4-(4-triazolinyl), 2-oxazolidinonyl, 5,6-dihydrouracilyl, 1,3-benzodioxolyl, 1,2,4-oxadiazolyl, 2- azabicyclo[2.2.1]heptyl, 4-thiazolidonyl, morpholino, furanyl, 2-oxotetrahydrofuranyl, ' tetrahydrofuranyl, 2,3-dihydrobenzofuranyl, benzothienyl, iso
- 1,1-dioxothiomorpholino 1,3-dioxolanyl, homopiperazinyl, thienyl, isoxazolyl, imidazolyl, pyrrolyl, thiazolyl, thiadiazolyl, isothiazolyl, 1,2,4-triazolyl, 1,2,3- triazolyl, pyranyl, indolyl, pyrimidyl, pyrazinyl, pyridazinyl, pyridyl, 4-pyridonyl, quinolyl, tetrahydrothienyl 1,1-dioxide, 2-oxo-pyrrolidinyl and 1-isoquinolonyl.
- heterocyclyl when referring to a 5/6 and 6/6 bicyclic ring system include benzofuranyl, benzimidazolyl, benzthiophenyl, benzthiazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, pyridoimidazolyl, pyrimidoimidazolyl, quinolinyl, isoquinolinyl, quinoxalinyl, quinazolinyl, phthalazinyl, cinnolinyl, imidazo[2,l-b][l,3]thiazolyl, chromanyl and naphthyridinyl.
- heterocyclyl refers to 5- or 6-membered monocyclic heterocyclic rings, such as oxazolyl, isoxazolyl, pyrrolidinyl, 2-pyrrolidonyl, 2,5-dioxopyrrolidinyl, morpholino, furanyl, tetrahydrofuranyl, piperidyl, piperazinyl, thiomorpholino, tetrahydropyranyl, homopiperazinyl, thienyl, imidazolyl, 1,2,4-triazolyl, 1,3,4-triazolyl, indolyl, thiazolyl, thiadiazolyl, pyrazinyl, pyridazinyl and pyridyl.
- oxazolyl isoxazolyl
- pyrrolidinyl 2-pyrrolidonyl
- 2,5-dioxopyrrolidinyl 2,5-dioxopyrrolidinyl
- cycloalkyl refers to a saturated carbocylic ring containing between 3 to 12 carbon atoms, preferably between 3 and 7 carbon atoms.
- Examples of C 3-7 cycloalkyl include cycloheptyl, cyclohexyl, cyclopentyl, cyclobutyl or cyclopropyl.
- cyclopropyl, cyclopentyl or cyclohexyl Preferably cyclopropyl, cyclopentyl or cyclohexyl.
- Ci- ⁇ alkyl examples include methyl, ethyl, propyl, isopropyl, 1-methyl-propyl, sec- butyl, tert-butyl and 2-ethyl-butyl; examples of C2- 6 aIkenyI include: ethenyl, 2-propenyl, 2-butenyl, or 2-methyl-2-butenyl; examples of C 2 -6alkynyl include: ethynyl, 2-propynyl,
- 2-butynyl, or 2-methyl-2-butynyl examples of include methoxy, ethoxy, propoxy and tert-butoxy; examples of -C(O)OC ⁇ . 6 alkyl include methoxycarbonyl, ethoxycarbonyl and tert-butyloxycarbonyl; examples of -NH-C ⁇ . 4 alkyl include:
- linker group 'X' the right hand side of the group is attached to phenyl ring and the left hand side is bound to 'Y'.
- the invention includes the E and Z isomers of compounds of the invention defined above, but the preferred compounds are the E isomers. It is to be understood that, insofar as certain of the compounds of the invention may exist in optically active or racemic forms by virtue of one or more asymmetric carbon atoms, the invention includes in its definition any such optically active or racemic form which possesses the property of stimulating GLK directly or inhibiting the GLK/GLKRP interaction.
- the synthesis of optically active forms may be carried out by standard techniques of organic chemistry well known in the art, for example by synthesis from optically active starting materials or by resolution of a racemic form.
- Preferred compounds of Formula (I) to (Ic) above or of Formula (II) to (Hf) below are those wherein any one or more of the following apply:
- n is O or l; n is 1 or 2; preferably n is 2; most preferably m is 0 and n is 2.
- R 1 and/or R 2 group(s) are attached at the 2-position and or the 3-position and or the 5- position; when n + m is 2, the groups are preferably at the 2- and 5- or 3- and 5- positions, most preferably at the 2- and 5- positions.
- each R 1 is independently selected from OH, CH 3-a F a (preferably CF 3 ), OCH 3-a F a (preferably OCF 3 ), halo, C 1-6 alkyl (preferably methyl), NO 2 or heterocyclyl optionally substituted by Cl-6alkyl; preferably R 1 is selected from CH 3-a F a (preferably CF 3 ), OCH 3-a F a (preferably OCF 3 ) or halo;
- each R 2 is the group Y-X- wherein each X is independently selected from:
- X is independently selected from: -O-Z-, -S-Z-, -SO-Z-, -SO 2 -Z-,
- X is independently selected from: -O-, -S-, -SO-, -SO2-, -(CH 2 ) 1-4 - or a direct bond
- each Z is independently selected from: a direct bond or -(CH 2 ) 1-2 , or a group of the formula -(CH 2 ) p -C(R 6 ) 2 -(CH 2 ) q -, wherein one R ⁇ group is hydrogen and the other R 6 group is C ⁇ -4 alkyl; preferably a direct bond, -(CH 2 )o -2 - or
- each Z 1 is independently selected from: a direct bond, C 2-6 alkenylene or a group of the formula -(CH 2 ) p -C(R 6 ) 2 -(CH 2 ) q - wherein one R group is hydrogen and the other R group is C 1-4 alkyl; preferably a direct bond, -(CH 2 ) 0-2 -, C 2-4 alkenylene or
- each Y is independently selected from: aryl-Z 1 -, heterocyclyl-Z 1 -, C 3-7 cycloalkyl-Z 1 -, C 1-6 alkyl, C 1-6 alkoxy, C 2-6 alkenyl or -CH(OH)CH 3 .
- each Y is independently selected from: phenyl-Z 1 -, heterocyclyl-Z 1 -, C 3-7 cycloalkyl-Z 1 -, C 1-6 alkyl (preferably a branched C 2-6 alkyl chain such as isopropyl or isobutyl), C 2-6 alkenyl or -CH 3-a F a ; most preferably Y is independently selected from: phenyl-Z 1 -, morpholinyl-Z 1 -, pyridyl-Z 1 -, pyrrolidino-Z 1 -, isoxazolyl-Z 1 -, diazolyl-Z 1 -, furanyl-Z 1 -, thienyl-Z 1 -, thiazolyl-Z 1 -, cyclopropy-Z 1 - or cyclohexyl-Z -, wherein each Y is independently optionally substituted by R 4 .
- each R 2 is the group Y-X-, Z within the definition of X is a direct bond and Z 1 within the definition of Y is a group of the formula -(CH 2 ) p -C(R 6 ) 2 -(CH 2 ) q -.
- R 2 is independently selected from: methoxy, methylthio, methylsulphinyl, methylsulphonyl, ethoxy, iso-propoxy, pentyloxy, phenoxy, benzyloxy, phenylpropoxy, phenylallyloxy, phenylthio, diazolylmethoxy, diazolylethoxy, furanylmethoxy, isoxazolylmethoxy, morpholino, pyridylmethoxy, pyrrolidinylethoxy, thiazolyl, thiazolylmethoxy, thiazolylethoxy, thienylmethoxy, cyclopropylmethoxy or cyclohexylmethoxy, wherein each of these R groups is optionally substituted by R .
- each R 4 is independently selected from: halo, -CH 3-a F a , -OCH 3-a F a , CN, NO 2 , C 1-6 alkyl, C ⁇ -6 alkoxy, -COOH, -(CH 2 ) 1-3 COOH, -(CH 2 ) 0-3 COOH , -C(O)phenyl, -C(O)NH 2 , -C(O)NH-phenyl,
- R 4 is independently selected from, chloro, bromo, fluoro, methyl, tert-butyl, isopropyl, methoxy, C 1- alkoxycarbonyl, vinyl, CN, OH, trifluoromethyl, -COOH, -CH 2 COOH, NO 2 , methylsulphonyl, -C(O)NH 2 , -C(O)NH-phenyl,
- R 3 is selected from hydrogen or C 1-6 alkyl; preferably R 3 is selected from hydrogen or methyl; most preferably R 3 is hydrogen.
- A, X, Z 1 , R 3 and R 4 are as defined above in a compound of Formula (I); or a salt, solvate or pro-drug thereof.
- Het is a monocyclic heterocyclyl, optionally substituted with between 1 and 3 groups selected from R 4 and, A, X, Z 1 , R 3 and R 4 are as defined above in a compound of Formula (I); or a salt, solvate or pro-drug thereof.
- DI a compound of Formula (Hb)
- A, X, Z 1 , R 3 and R 4 are as defined above in a compound of Formula (I); or a salt, solvate or pro-drug thereof.
- V a compound of Formula (lid)
- Formula (lid) wherein: the C 1-6 alkyl groups are independently optionally substituted with between 1 and 3 groups selected from R 4 , preferably one of the C 1-6 alkyl groups is unsubstituted, the C 1-6 alkyl groups independently optionally contain a double bond, preferably only one of the C 1-6 alkyl groups contain a double bond, preferably neither of the C 1-6 alkyl group contains a double bond, and
- A, X, R 3 and R 4 are as defined above in a compound of Formula (I); with the proviso that A is other than pyridyl, furanyl or thiazolyl; or a salt, solvate or pro-drug thereof.
- Formula (He) wherein: the C 3-7 cycloalkyl and C 1-6 alkyl groups are independently optionally substituted with between 1 and 3 groups selected from R 4 , preferably the C 1-6 alkyl group is unsubstituted; the C 1-6 alkyl group optionally contains a double bond, preferably the C 1-6 alkyl group does not contains a double bond; and
- A, X, Z 1 , R 3 and R 4 are as defined above in a compound of Formula (I); or a salt, solvate or pro-drug thereof.
- VTI a compound of Formula (Hf)
- Het is a monocyclic heterocyclyl, the Het and C 1-6 alkyl groups are independently optionally substituted with between 1 and 3 groups selected from R 4 , preferably the C 1- alkyl group is unsubstituted; the C ⁇ . alkyl group optionally contains a double bond, preferably the C 1-6 alkyl group does not contains a double bond; and
- A, X, Z 1 , R 3 and R 4 are as defined above in a compound of Formula (I); or a salt, solvate or pro-drug thereof.
- Het is a monocyclic heterocyclyl, the Het and C 3- cycloalkyl groups are independently optionally substituted with between 1 and 3 groups selected from R 4 , and A, X, Z 1 , R 3 and R 4 are as defined above in a compound of Formula (I); or a salt, solvate or pro-drug thereof.
- (IX) a compound of Formula (Hri) wherein:
- Y is aryl-Z 1 -, wherein aryl is preferably a partially saturated bicyclic carbocyclic ring; Y and the C 1-6 alkyl group are independently optionally substituted with between 1 and 3 groups selected from R 4 , preferably the C 1-6 alkyl group is unsubstituted, the C 1-6 alkyl group optionally contains a double bond, preferably the C 1-6 alkyl group does not contains a double bond; and
- A, X, Z 1 , R 3 and R 4 are as defined above in a compound of Formula (I); or a salt, solvate or pro-drug thereof.
- X is selected from -SO 2 N(R 6 )-Z- or -N(R 6 )SO 2 -Z-, preferably X is -SO 2 N(R )-Z-;
- Z is as described above, preferably Z is propylene, ethylene or methylene, more preferably Z is methylene; Z a is selected from a direct bond or a group of the formula -(CH 2 ) p -C(R 6 ) 2 -(CH ) q -; preferably Z a is selected from C 1-2 alkylene or a direct bond; preferably Z a is a direct bond;
- R is selected from: C 1-4 alkyl or hydrogen, preferably methyl or hydrogen;
- Y is selected from aryl-Z 1 - or heterocyclyl-Z 1 -;
- Y and the C ⁇ -6 alkyl group are independently optionally substituted with between 1 and 3 groups selected from R , the C 1- alkyl group optionally contains a double bond, preferably the C 1-6 alkyl group does not contain a double bond, and A, Z 1 , R 3 and R 4 are as defined above in a compound of Formula (I); or a salt, solvate or pro-drug thereof.
- X is independently selected from: -O-Z-, SO 2 N(R 6 )-Z- or -N(R 6 )-Z-;
- Z is a direct bond or -CH 2 -;
- Z 1 is selected from a direct bond, -CH 2 - -(CH 2 ) 2 - or
- R 3 is as defined above in a compound of Formula (I); or a salt, solvate or pro-drug thereof.
- R 3 is as defined above in a compound of Formula (I); or a salt, solvate or pro-drug thereof.
- A is selected from: pyridyl, pyrimidinyl, pyrazinyl, furanyl or thiazolyl; preferably A is linked to the styryl group at the 2-position of A.
- the compounds of the invention may be administered in the form of a pro-drug.
- a pro-drug is a bioprecursor or pharmaceutically acceptable compound being degradable in the body to produce a compound of the invention (such as an ester or amide of a compound of the invention, particularly an in vivo hydrolysable ester).
- a prodrug derivatives see: a) Design of Prodrugs, edited by H. Bundgaard, (Elsevier, 1985) and Methods in Enzymology, Vol. 42, p. 309-396, edited by K. Widder, et al.
- An in-vivo hydrolysable ester of a compound of the invention containing a carboxy or a hydroxy group is, for example, a pharmaceutically- acceptable ester which is hydrolysed in the human or animal body to produce the parent acid or alcohol.
- Suitable pharmaceutically-acceptable esters for carboxy include to C 6 alkoxymethyl esters for example methoxymethyl, to 6 alkanoyloxymethyl esters for example pivaloyloxymethyl, phthalidyl esters, C 3 to scycloaikoxycarbonyloxyCi to 6 alkyl esters for example 1-cyclohexylcarbonyloxyethyl; l,3-dioxolen-2-onylmethyl esters, for example 5-methyl-l,3-dioxolen-2-onylmethyl; and C 1-6 alkoxycarbonyloxyethyl esters.
- An in-vivo hydrolysable ester of a compound of the invention containing a hydroxy group includes inorganic esters such as phosphate esters (including phosphoramidic cyclic esters) and oc-acyloxyalkyl ethers and related compounds which as a result of the in-vivo hydrolysis of the ester breakdown to give the parent hydroxy group/s.
- inorganic esters such as phosphate esters (including phosphoramidic cyclic esters) and oc-acyloxyalkyl ethers and related compounds which as a result of the in-vivo hydrolysis of the ester breakdown to give the parent hydroxy group/s.
- ⁇ -acyloxyalkyl ethers include acetoxymethoxy and 2,2-dimethylpropionyloxy-methoxy.
- a selection of in-vivo hydrolysable ester forming groups for hydroxy include alkanoyl, benzoyl, phenylacetyl and substituted benzoyl and phenylacetyl, alkoxycarbonyl (to give alkyl carbonate esters), dialkylcarbamoyl and N-(dialkylaminoethyl)-N-alkylcarbamoyl (to give carbamates), dialkylaminoacetyl and carboxyacetyl.
- a suitable pharmaceutically-acceptable salt of a compound of the invention is, for example, an acid-addition salt of a compound of the invention which is sufficiently basic, for example, an acid-addition salt with, for example, an inorganic or organic acid, for example hydrochloric, hydrobromic, sulphuric, phosphoric, trifluoroacetic, citric or maleic acid.
- a suitable pharmaceutically-acceptable salt of a benzoxazinone derivative of the invention which is sufficiently acidic is an alkali metal salt, for example a sodium or potassium salt, an alkaline earth metal salt, for example a calcium or magnesium salt, an ammonium salt or a salt with an organic base which affords a physiologically-acceptable cation, for example a salt with methylamine, dimethylamine, trimethylamine, piperidine, morpholine or tris-(2-hydroxyethyl)amine.
- a further feature of the invention is a pharmaceutical composition
- a pharmaceutical composition comprising a compound of Formula (I) to (Ic) or (II) to (IIj) as defined above, or a salt, solvate or prodrug thereof, together with a pharmaceutically-acceptable diluent or carrier.
- a compound of Formula (lb) or (Ic), or (II) to (Hj) as defined above for use as a medicament; with the proviso that
- a compound of Formula (lb) or (Ic), or (II) to (Hj) for use in the preparation of a medicament for treatment of a disease mediated through GLK, in particular type 2 diabetes.
- the compound is suitably formulated as a pharmaceutical composition for use in this way.
- a method of treating GLK mediated diseases, especially diabetes by administering an effective amount of a compound of Formula (lb) or (Ic), or (II) to (IIj) to a mammal in need of such treatment.
- Specific disease which may be treated by the compound or composition of the invention include: blood glucose lowering in Diabetes Mellitus type 2 without a serious risk of hypoglycaemia (and potential to treat type 1), dyslipidemea, obesity, insulin resistance, metabolic syndrome X, impaired glucose tolerance.
- Specific disease which may be treated by the compound or composition of the invention include: blood glucose lowering in Diabetes Mellitus type 2 (and potential to treat type 1); dyslipidaemia; obesity; insulin resistance; metabolic syndrome X; impaired glucose tolerance; polycystic ovary syndrome.
- compositions of the invention may be in a form suitable for oral use (for example as tablets, lozenges, hard or soft capsules, aqueous or oily suspensions, emulsions, dispersible powders or granules, syrups or elixirs), for topical use (for example as creams, ointments, gels, or aqueous or oily solutions or suspensions), for administration by inhalation (for example as a finely divided powder or a liquid aerosol), for administration by insufflation (for example as a finely divided powder) or for parenteral administration (for example as a sterile aqueous or oily solution for intravenous, subcutaneous, intramuscular or intramuscular dosing or as a suppository for rectal dosing).
- oral use for example as tablets, lozenges, hard or soft capsules, aqueous or oily suspensions, emulsions, dispersible powders or granules, syrups or elixir
- compositions of the invention may be obtained by conventional procedures using conventional pharmaceutical excipients, well known in the art.
- compositions intended for oral use may contain, for example, one or more colouring, sweetening, flavouring and/or preservative agents.
- Suitable pharmaceutically acceptable excipients for a tablet formulation include, for example, inert diluents such as lactose, sodium carbonate, calcium phosphate or calcium carbonate, granulating and disintegrating agents such as corn starch or algenic acid; binding agents such as starch; lubricating agents such as magnesium stearate, stearic acid or talc; preservative agents such as ethyl or propyl p-hydroxybenzoate, and anti-oxidants, such as ascorbic acid. Tablet formulations may be uncoated or coated either to modify their disintegration and the subsequent absorption of the active ingredient within the gastrointestinal tract, or to improve their stability and/or appearance, in either case, using conventional coating agents and procedures well known in the art.
- inert diluents such as lactose, sodium carbonate, calcium phosphate or calcium carbonate
- granulating and disintegrating agents such as corn starch or algenic acid
- binding agents such as starch
- lubricating agents
- Compositions for oral use may be in the form of hard gelatin capsules in which the active ingredient is mixed with an inert solid diluent, for example, calcium carbonate, calcium phosphate or kaolin, or as soft gelatin capsules in which the active ingredient is mixed with water or an oil such as peanut oil, liquid paraffin, or olive oil.
- an inert solid diluent for example, calcium carbonate, calcium phosphate or kaolin
- water or an oil such as peanut oil, liquid paraffin, or olive oil.
- Aqueous suspensions generally contain the active ingredient in finely powdered form together with one or more suspending agents, such as sodium carboxymethylcellulose, methylcellulose, hydroxypropylmethylcellulose, sodium alginate, polyvinyl-pyrrolidone, gum tragacanth and gum acacia; dispersing or wetting agents such as lecithin or condensation products of an alkylene oxide with fatty acids (for example polyoxethylene stearate), or condensation products of ethylene oxide with long chain aliphatic alcohols, for example heptadecaethyleneoxycetanol, or condensation products of ethylene oxide with partial esters derived from fatty acids and a hexitol such as polyoxyethylene sorbitol monooleate, or condensation products of ethylene oxide with long chain aliphatic alcohols, for example heptadecaethyleneoxycetanol, or condensation products of ethylene oxide with partial esters derived from fatty acids and a hexitol such as polyoxyethylene sorbitol
- the aqueous suspensions may also contain one or more preservatives (such as ethyl or propyl p-hydroxybenzoate, anti- oxidants (such as ascorbic acid), colouring agents, flavouring agents, and/or sweetening agents (such as sucrose, saccharine or aspartame).
- preservatives such as ethyl or propyl p-hydroxybenzoate, anti- oxidants (such as ascorbic acid), colouring agents, flavouring agents, and/or sweetening agents (such as sucrose, saccharine or aspartame).
- Oily suspensions may be formulated by suspending the active ingredient in a vegetable oil (such as arachis oil, olive oil, sesame oil or coconut oil) or in a mineral oil (such as liquid paraffin).
- the oily suspensions may also contain a thickening agent such as beeswax, hard paraffin or cetyl alcohol. Sweetening agents such as those set out above, and flavouring agents may be added to provide a palatable oral preparation.
- These compositions may be preserved by the addition of an anti-oxidant such as ascorbic acid.
- Dispersible powders and granules suitable for preparation of an aqueous suspension by the addition of water generally contain the active ingredient together with a dispersing or wetting agent, suspending agent and one or more preservatives.
- compositions of the invention may also be in the form of oil-in-water emulsions.
- the oily phase may be a vegetable oil, such as olive oil or arachis oil, or a mineral oil, such as for example liquid paraffin or a mixture of any of these.
- Suitable emulsifying agents may be, for example, naturally-occurring gums such as gum acacia or gum tragacanth, naturally-occurring phosphatides such as soya bean, lecithin, an esters or partial esters derived from fatty acids and hexitol anhydrides (for example sorbitan monooleate) and condensation products of the said partial esters with ethylene oxide such as polyoxyethylene sorbitan monooleate.
- the emulsions may also contain sweetening, flavouring and preservative agents.
- Syrups and elixirs may be formulated with sweetening agents such as glycerol, propylene glycol, sorbitol, aspartame or sucrose, and may also contain a demulcent, preservative, flavouring and/or colouring agent.
- sweetening agents such as glycerol, propylene glycol, sorbitol, aspartame or sucrose, and may also contain a demulcent, preservative, flavouring and/or colouring agent.
- compositions may also be in the form of a sterile injectable aqueous or oily suspension, which may be formulated according to known procedures using one or more of the appropriate dispersing or wetting agents and suspending agents, which have been mentioned above.
- a sterile injectable preparation may also be a sterile injectable solution or suspension in a non-toxic parenterally-acceptable diluent or solvent, for example a solution in 1,3-butanediol.
- Compositions for administration by inhalation may be in the form of a conventional pressurised aerosol arranged to dispense the active ingredient either as an aerosol containing finely divided solid or liquid droplets.
- Conventional aerosol propellants such as volatile fluorinated hydrocarbons or hydrocarbons may be used and the aerosol device is conveniently arranged to dispense a metered quantity of active ingredient.
- Conventional aerosol propellants such as volatile fluorinated hydrocarbons or hydrocarbons may be used and the aerosol device is conveniently arranged to disp
- the amount of active ingredient that is combined with one or more excipients to produce a single dosage form will necessarily vary depending upon the host treated and the particular route of administration.
- a formulation intended for oral administration to humans will generally contain, for example, from 0.5 mg to 2 g of active agent compounded with an appropriate and convenient amount of excipients which may vary from about 5 to about 98 percent by weight of the total composition.
- Dosage unit forms will generally contain about 1 mg to about 500 mg of an active ingredient.
- the size of the dose for therapeutic or prophylactic purposes of a compound of the Formula (I), (la), (lb) or (Ic) will naturally vary according to the nature and severity of the conditions, the age and sex of the animal or patient and the route of administration, according to well known principles of medicine.
- a daily dose in the range for example, 0.5 mg to 75 mg per kg body weight is received, given if required in divided doses.
- a parenteral route is employed.
- a dose in the range for example, 0.5 mg to 30 mg per kg body weight will generally be used.
- a dose in the range for example, 0.5 mg to 25 mg per kg body weight will be used.
- Oral administration is however preferred.
- the elevation of GLK activity described herein may be applied as a sole therapy or may involve, in addition to the subject of the present invention, one or more other substances and/or treatments. Such conjoint treatment may be achieved by way of the simultaneous, sequential or separate administration of the individual components of the treatment. Simultaneous treatment may be in a single tablet or in separate tablets.
- simultaneous treatment may include the following main categories of treatment: 1) Insulin and insulin analogues;
- Insulin secretagogues including sulphonylureas (for example glibenclamide, glipizide) and prandial glucose regulators (for example repaglinide, nateglinide);
- sulphonylureas for example glibenclamide, glipizide
- prandial glucose regulators for example repaglinide, nateglinide
- Insulin sensitising agents including PPARg agonists (for example pioglitazone and rosiglitazone); 4) Agents that suppress hepatic glucose output (for example metf ⁇ rmin).
- Anti-obesity agents for example sibutramine and orlistat
- Anti- dyslipidae ia agents such as, HMG-CoA reductase inhibitors (statins, eg pravastatin); PPAR agonists (fibrates, eg gemfibrozil); bile acid sequestrants (cholestyramine); cholesterol absorption inhibitors (plant stanols, synthetic inhibitors); bile acid absorption inhibitors (IBATi) and nicotinic acid and analogues (niacin and slow release formulations); 9) Antihypertensive agents such as, ⁇ blockers (eg atenolol, inderal); ACE inhibitors (eg lisinopril); Calcium antagonists (eg.
- nifedipine Angiotensin receptor antagonists (eg candesartan), ⁇ antagonists and diuretic agents (eg. furosemide, benzthiazide); 10) Haemostasis modulators such as, antithrombotics, activators of fibrinolysis and antiplatelet agents; thrombin antagonists; factor Xa inhibitors; factor Vila inhibitors); antiplatelet agents (eg. aspirin, clopidogrel); anticoagulants (heparin and Low molecular weight analogues, hirudin) and warfarin; and 11) Anti-inflammatory agents, such as non-steroidal anti-infammatory drugs (eg. aspirin) and steroidal anti-inflammatory agents (eg. cortisone).
- Haemostasis modulators such as, antithrombotics, activators of fibrinolysis and antiplatelet agents; thrombin antagonists; factor Xa inhibitors; factor Vila inhibitors); antiplatelet agents (eg. aspirin
- a compound of the invention, or a salt, pro-drug or solvate thereof may be prepared by any process known to be applicable to the preparation of such compounds or structurally related compounds. Such processes are illustrated by the following representative schemes (1 to 4) in which variable groups have any of the meanings defined for Formula (I) unless stated otherwise and A is for example depicted as pyridyl. Functional groups may be protected and deprotected using conventional methods.
- protecting groups may be removed by any convenient method as described in the literature or known to the skilled chemist as appropriate for the removal of the protecting group in question, such methods being chosen so as to effect removal of the protecting group with minimum disturbance of groups elsewhere in the molecule.
- Formula (irff) Formula (Dig); and thereafter, if necessary: i) converting a compound of Formula (I) into another compound of Formula (I); ii) removing any protecting groups; iii) forming a salt, pro-drug or solvate thereof.
- X' terminates in an aldehyde group and Y-X" is a phosphine derivative of the formula Y-C ⁇ -P ' T ⁇ s which can be reacted together in a strong base such as sodium hydride or potassium tert-butoxide, in a suitable solvent such as THF at a temperature between room temperature and 100°C.
- Process d) - the oxidization of a compound of Formula (I) wherein X or X 1 is -S-Z- is well known in the art, for example, reaction with metachloroperbenzoic acid (MCPB A) is the presence of a suitable solvent such as dichloromethane at ambient temperature. H an excess of MCPB A is used a compound of Formula (I) wherein X is — S(O 2 ) — is obtained.
- Protecting groups may be removed by any convenient method as described in the literature or known to the skilled chemist as appropriate for the removal of the protecting group in question, such methods being chosen so as to effect removal of the protecting group with minimum disturbance of groups elsewhere in the molecule.
- protecting groups are given below for the sake of convenience, in which "lower” signifies that the group to which it is applied preferably has 1-4 carbon atoms. It will be understood that these examples are not exhaustive. Where specific examples of methods for the removal of protecting groups are given below these are similarly not exhaustive. The use of protecting groups and methods of deprotection not specifically mentioned is of course within the scope of the invention.
- a carboxy protecting group may be the residue of an ester-forming aliphatic or araliphatic alcohol or of an ester-forming silanol (the said alcohol or silanol preferably containing 1-20 carbon atoms).
- Examples of carboxy protecting groups include straight or branched chain (C 1-12 )alkyl groups (e.g. isopropyl, t-butyl); lower alkoxy lower alkyl groups (e.g. methoxymethyl, ethoxymethyl, isobutoxymethyl; lower aliphatic acyloxy lower alkyl groups, (e.g.
- lower alkoxycarbonyloxy lower alkyl groups e.g. 1-methoxycarbonyloxyethyl, 1-ethoxycarbonyloxyethyl
- aryl lower alkyl groups e.g. g-methoxybenzyl, o-nitrobenzyl, p-nitrobenzyl, benzhydryl and phthalidyl
- tri(lower alkyl)silyl groups e.g. trimethylsilyl and t-butyldimethylsilyl
- tri(lower alkyl)silyl lower alkyl groups e.g. trimethylsilylethyl
- (2-6C)alkenyl groups e.g. allyl and vinylethyl
- Methods particularly appropriate for the removal of carboxyl protecting groups include for example acid-, metal- or enzymically-catalysed hydrolysis.
- hydroxy protecting groups include lower alkenyl groups (e.g. allyl); lower alkanoyl groups (e.g. acetyl); lower alkoxycarbonyl groups (e.g. t-butoxycarbonyl); lower alkenyloxycarbonyl groups (e.g. allyloxycarbonyl); aryl lower alkoxycarbonyl groups (e.g.
- tri lower alkyl/arylsilyl groups e.g. trimethylsilyl, t-butyldimethylsilyl, t-butyldiphenylsilyl
- aryl lower alkyl groups e.g. benzyl
- triaryl lower alkyl groups e.g. triphenylmethyl
- amino protecting groups include formyl, aralkyl groups (e.g. benzyl and substituted benzyl, e.g. p-methoxybenzyl, nitrobenzyl and 2,4-dimethoxybenzyl, and triphenylmethyl); di-p-anisylmethyl and furylmethyl groups; lower alkoxycarbonyl (e.g. t-butoxycarbonyl); lower alkenyloxycarbonyl (e.g. allyloxycarbonyl); aryl lower alkoxycarbonyl groups (e.g.
- benzyloxycarbonyl p-methoxybenzyloxycarbonyl, o-nitrobenzyloxycarbonyl, p-nitrobenzyloxycarbonyl; trialkylsilyl (e.g. trimethylsilyl and t-butyldimethylsilyl); alkylidene (e.g. methylidene); benzylidene and substituted benzylidene groups.
- trialkylsilyl e.g. trimethylsilyl and t-butyldimethylsilyl
- alkylidene e.g. methylidene
- benzylidene and substituted benzylidene groups e.g. methylidene
- Methods appropriate for removal of hydroxy and amino protecting groups include, for example, acid-, base, metal- or enzymically-catalysed hydrolysis, or photolytically for groups such as o-nitrobenzyloxycarbonyl, or with fluoride ions for silyl groups.
- protecting groups for amide groups include aralkoxymethyl (e.g. benzyloxymethyl and substituted benzyloxymethyl); alkoxymethyl (e.g. methoxymethyl and trimethylsilylethoxymethyl); tri alkyl/arylsilyl (e.g. trimethylsilyl, t-butyldimethylsily, t- butyldiphenylsilyl); tri alkyl/arylsilyloxymethyl (e.g. t-butyldimefhylsilyloxymethyl, t-butyldiphenylsilyloxymethyl); 4-alkoxyphenyl (e.g.
- Aralkoxymethyl, groups may be introduced onto the amide group by reacting the latter group with the appropriate aralkoxymethyl chloride, and removed by catalytic hydrogenation.
- Alkoxymethyl, tri alkyl/arylsilyl and tri alkyl/silyloxymethyl groups may be introduced by reacting the amide with the appropriate chloride and removing with acid; or in the case of the silyl containing groups, fluoride ions.
- the alkoxyphenyl and alkoxybenzyl groups are conveniently introduced by arylation or alkylation with an appropriate halide and removed by oxidation with eerie ammonium nitrate.
- alk-1-enyl groups may be introduced by reacting the amide with the appropriate aldehyde and removed with acid.
- the present invention also relates to the use of a GLK activator for the combined treatment of diabetes and obesity.
- GLK and GLKRP and the K ATP channel are expressed in neurones of the hypothalamus, a region of the brain that is important in the regulation of energy balance and the control of food intake [14-18].
- These neurones have been shown to express orectic and anorectic neuropeptides [15, 19, 20] and have been assumed to be the glucose-sensing neurones within the hypothalamus that are either inhibited or excited by changes in ambient glucose concentrations [17, 19, 21, 22].
- the ability of these neurones to sense changes in glucose levels is defective in a variety of genetic and experimentally induced models of obesity [23-28].
- GLK activators may decrease food intake and weight gain through central effects on GLK. Therefore, GLK activators may be of therapeutic use in treating eating disorders, including obesity, in addition to diabetes.
- the hypothalamic effects will be additive or synergistic to the effects of the same compounds acting in the liver and or pancreas in normalising glucose homeostasis, for the treatment of Type 2 diabetes.
- the GLK/GLKRP system can be described as a potential "Diabesity" target (of benefit in both Diabetes and Obesity).
- a GLK activator in the preparation of a medicament for the combined treatment or prevention of diabetes and obesity.
- a method of combined treatment, in a warm-blooded animal, of diabetes and obesity comprising administering a therapeutically effective amount of a compound of a GLK activator, or a pharmaceutically-acceptable salt, pro-drug or solvate thereof.
- a pharmaceutical composition comprising a GLK activator, or a pharmaceutically acceptable salt, prodrug or solvate thereof, in admixture with a pharmaceutically-acceptable diluent or carrier for the combined treatment of diabetes and obesity in a warm-blooded animal.
- a GLK activator in the preparation of a medicament for the treatment or prevention of diabetes and obesity, wherein the GLK activator is a compound of Formula (I) above.
- a method of combined treatment, in a warm-blooded animal, of diabetes and obesity comprising administering a therapeutically effective amount of a compound of a GLK activator, or a pharmaceutically-acceptable salt, pro-drug or solvate thereof, wherein the GLK activator is a compound of Formula (I) above.
- a pharmaceutical composition comprising a GLK activator, or a pharmaceutically acceptable salt, prodrug or solvate thereof, in admixture with a pharmaceutically-acceptable diluent or carrier for the combined treatment of diabetes and obesity in a warm-blooded animal, wherein the GLK activator is a compound of Formula (I) above.
- a GLK activator in the preparation of a medicament for the treatment or prevention of diabetes and obesity, wherein the GLK activator is a compound of Formula (IV) below.
- each R 1 is independently selected from OH, -(CH 2 ) 1- OH, -CH 3-a F a , -(CH 2 ) 1-4 CH 3-a F a , halo, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, NO 2 , NH 2 , -NH-C 1-4 alkyl, -N-di-(C ⁇ - alkyl), CN or formyl; each R 2 is the group Y-X- wherein each X is a linker independently selected from - -OO--ZZ--,, --OO--ZZ--OO--ZZ--,, --CC((OO))OO--ZZ--,, --OOCC((OO))--ZZ--, --SS--ZZ--,, -SO-Z-,
- each Z is independently a direct bond or a group of the formula -(CH 2 ) p -C(R 6 ) 2 -(CH 2 ) q -;
- each Y is independently selected from aryl-Z -, heterocyclyl-Z -, C 3-7 cycloalkyl-Z -, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl or -(CH 2 ) 1- CH 3 . a F a ; wherein each Y is independently optionally substituted by up to 3 R 4 groups; each R 4 is independently selected from halo, -CH 3-a F a , CN, NO 2 , NH 2 , C 1-6 alkyl,
- R 6 is independently selected from hydrogen, C ⁇ -6 alkyl or -C 2- alkyl-O-C 1-4 alkyl; each a is independently 1, 2 or 3; p is an integer between 0 and 2; q is an integer between 0 and 2; and p + q ⁇ 4.
- a method of combined treatment in a warm-blooded animal, of diabetes and obesity, comprising administering a therapeutically effective amount of a compound of a GLK activator, or a pharmaceutically-acceptable salt, pro-drug or solvate thereof, wherein the GLK activator is a compound of Formula (IV).
- a pharmaceutical composition comprising a GLK activator, or a pharmaceutically acceptable salt, prodrug or solvate thereof, in admixture with a pharmaceutically-acceptable diluent or carrier for the combined treatment of diabetes and obesity in a warm-blooded animal, wherein the GLK activator is a compound of Formula (IV).
- GLK activators are contained in International Application numbers:
- a GLK activator in the preparation of a medicament for the treatment or prevention of diabetes and obesity, wherein the GLK activator is a compound exemplified in aforesaid International Applications or falls within the scope of aforesaid International Applications.
- a method of combined treatment, in a warm-blooded animal, of diabetes and obesity comprising administering a therapeutically effective amount of a compound of a GLK activator, wherein the GLK activator is a compound exemplified in aforesaid International Applications or falls within the scope of aforesaid International Applications.
- a pharmaceutical composition comprising a GLK activator, or a pharmaceutically acceptable salt, prodrug or solvate thereof, in admixture with a pharmaceutically-acceptable diluent or carrier for the combined treatment of diabetes and obesity in a warm-blooded animal, wherein the GLK activator is a compound exemplified in aforesaid International Applications or falls within the scope of aforesaid International Applications.
- the identification of compounds that are useful in the combined treatment of diabetes and obesity is the subject of the present invention. These properties may be assessed, for example, by measuring changes in food intake, feeding-related behaviour (eg. feeding, grooming, physical activity, rest) and body weight separately or together with measuring plasma or blood glucose or insulin concentrations with or without an oral glucose load/food in a variety of animal models such as ob/ob mouse, db/db mouse, Fatty Zucker rat, Zucker diabetic rat (ZDF), streptozotocin-treated rats or mice or diet-induced obese mice or rats, as described in Sima & Shafrir, 2001, Animal Models of Diabetes, A Primer (Harwood
- GLK activators may be used in the combined treatment of diabetes and obesity alone or in combination with one or more additional therapies. Such combination therapy may be achieved by way of the simultaneous, sequential or separate administration of the individual components of the treatment. Simultaneous treatment may be in a single tablet or in separate tablets. Examples of agents which may be used in combination therapy include those listed in paragraphs 1) -11) above, as drugs which may be used with compounds of Formula (I).
- the product from the previous step (162 mg) was dissolved in a mixture of THF (2.5 ml) and 5 IM aqueous NaOH solution (1.25 ml) and was then heated for 2 hours at 60°C. The reaction was allowed to cool to room temperature overnight and was then reduced in vacuo to remove the THF.
- the 5 product was obtained as a yellow solid (880 mg, quant.) ⁇ H (300 MHz, DMSO-d 6 ) 13.2 (IH, s), 9.01 (IH, d), 8.22 (IH, dd), 8.04 (IH, d), 7.66 (IH, d), 7.53 (IH, d), 7.45 (IH, d), 7.39 (2H, d), 7.29-7.20 (3H, m), 7.11 (IH, d), 5.18 (4H, s), 2.87 (IH, septet), 2.51 (3H and residual DMSO- 5 , s), and 1.19 (6H, d); m / z (LCMS) (ESI+) 420 (MH+); (ESI-) 418 (M-H).
- 3,5-Dihydroxybenzaldehyde (lO.Og 72.46mm ) was stirred with 6-methyl methyl nicotinate (10.94g 72.46mm ) in acetic acid (3.7ml 65mm ) and acetic anhydride (37ml 0.39m ) at 120°C overnight.
- Table 2 gives the parent molecular weight, mass spec data and the synthetic scheme for the compounds listed in Table 1.
- R 3 is OH; in compounds 115-123 R 3 is methoxy; in compound 124 R is methylsulphonylamino; in compound 125 R is methoxyamino; in compounds 126- 127 R 3 is 2-hydroxyethylamide.
- Compound 2 corresponds to the product of Example A.
- Compound 36 corresponds to the product of Example B.
- Compound 101 corresponds to Example E.
- Compound 124 corresponds to the product of Example I.
- the compounds A-I, J 1-12 , K, L, M and N 1-8 were found to have an activity of at least 40% activity at 10 ⁇ m when tested in the GLK/GLKRP scintillation proximity assay described below. 0
- Enzymatic activity of GLK may be measured by incubating GLK, ATP and glucose.
- the rate of product formation may be determined by coupling the assay to a G-6-P dehydrogenase, NADP/NADPH system and measuring the increase in optical density at 340nm (Matschinsky et al 1993).
- a GLK/GLKRP binding assay for measuring the binding interactions between GLK and GLKRP The method may be used to identify compounds which modulate GLK by modulating the interaction between GLK and GLKRP.
- GLKRP and GLK are incubated with an inhibitory concentration of F-6-P, optionally in the presence of test compound, and the extent of interaction between GLK and GLKRP is measured.
- Recombinant human GLK and GLKRP were used to develop a "mix and measure" 96 well SPA (scintillation proximity assay).
- a schematic representation of the assay is given in Figure 3).
- GLK (Biotinylated) and GLKRP are incubated with streptavidin linked SPA beads (Amersham) in the presence of an inhibitory concentration of radiolabelled [3H]F-6-P (Amersham Custom Synthesis TRQ8689), giving a signal as depicted in Figure 3.
- Compounds which either displace the F-6-P or in some other way disrupt the GLK / GLKRP binding interaction will cause this signal to be lost. Binding assays were performed at room temperature for 2 hours.
- the extent of GLK/GLKRP complex formation was determined by addition of O.lmg/well avidin linked SPA beads (Amersham) and scintillation counting on a Packard TopCount NXT.
- the exemplified compounds described above were found to have an activity of at least 40% activity at 10 ⁇ m when tested in the GLK/GLKRP scintillation proximity assay.
- GLKRP and F-6-P This method may be used to provide further information on the mechanism of action of the compounds.
- Compounds identified in the GLK/GLKRP binding assay may modulate the interaction of GLK and GLKRP either by displacing F-6-P or by modifying the GLK/GLKRP interaction in some other way.
- protein-protein interactions are generally known to occur by interactions through multiple binding sites. It is thus possible that a compound which modifies the interaction between GLK and GLKRP could act by binding to one or more of several different binding sites.
- the F-6-P / GLKRP binding assay identifies only those compounds which modulate the interaction of GLK and GLKRP by displacing F-6-P from its binding site on GLKRP.
- GLKRP is incubated with test compound and an inhibitory concentration of F-6-P, in the absence of GLK, and the extent of interaction between F-6-P and GLKRP is measured.
- Compounds which displace the binding of F-6-P to GLKRP may be detected by a change in the amount of GLKRP/F-6-P complex formed.
- a specific example of such a binding assay is described below
- FLAG-tagged GLKRP is incubated with protein A coated SPA beads (Amersham) and an anti-FLAG antibody in the presence of an inhibitory concentration of radiolabelled [3H]F-6-P.
- a signal is generated as depicted in Figure 4. Compounds which displace the F-6-P will cause this signal to be lost. A combination of this assay and the GLK/GLKRP binding assay will allow the observer to identify compounds which disrupt the GLK/GLKRP binding interaction by displacing F-6-P.
- Binding assays were performed at room temperature for 2 hours.
- the extent of F-6-P/GLKRP complex formation was determined by addition of O.lmg/well protein A linked SPA beads (Amersham) and scintillation counting on a Packard TopCount NXT. Production of recombinant GLK and GLKRP:
- Human liver total mRNA was prepared by polytron homogenisation in 4M guanidine isothiocyanate, 2.5mM citrate, 0.5% Sarkosyl, lOOmM b-mercaptoethanol, followed by centrifugation through 5.7M CsCl, 25mM sodium acetate at 135,000g (max) as described in Sambrook J, Fritsch EF & Maniatis T, 1989.
- Poly A + mRNA was prepared directly using a FastTrackTM mRNA isolation kit (Invitrogen).
- Human GLK and GLKRP cDNA was obtained by PCR from human hepatic mRNA using established techniques described in Sambrook, Fritsch & Maniatis, 1989. PCR primers were designed according to the GLK and GLKRP cDNA sequences shown in Tanizawa et al 1991 and Bonthron, D.T. et al 1994 (later corrected in Warner, J.P. 1995).
- GLK and GLKRP cDNA was cloned in E. coli using pBluescript ⁇ , (Short et al 1998) a recombinant cloning vector system similar to that employed by Yanisch-Perron C et al (1985), comprising a colEI-based replicon bearing a polylinker DNA fragment containing multiple unique restriction sites, flanked by bacteriophage T3 and T7 promoter sequences; a filamentous phage origin of replication and an ampicillin drug resistance marker gene.
- Transformations E. Coli transformations were generally carried out by electroporation. 400 ml cultures of strains DH5a or BL21(DE3) were grown in L-broth to an OD 600 of 0.5 and harvested by centrifugation at 2,000g. The cells were washed twice in ice-cold deionised water, resuspended in 1ml 10% glycerol and stored in aliquots at -70°C. Ligation mixes were desalted using Millipore V seriesTM membranes (0.0025mm) pore size).
- Expression GLK was expressed from the vector pTB375NBSE in E.coli BL21 cells,, producing a recombinant protein containing a 6-His tag immediately adjacent to the N-terminal methionine.
- another suitable vector is pET21(+)DNA, Novagen, Cat number 697703.
- the 6-His tag was used to allow purification of the recombinant protein on a column packed with nickel-nitrilotriacetic acid agarose purchased from Qiagen (cat no 30250).
- GLKRP was expressed from the vector pFLAG CTC (IBI Kodak) in E.coli BL21 cells, producing a recombinant protein containing a C-terminal FLAG tag.
- the protein was purified initially by DEAE Sepharose ion exchange followed by utilisation of the FLAG tag for final purification on an M2 anti-FLAG immunoaffinity column purchased from Sigma-Aldrich (cat no. A1205).
- GLK was biotinylated by reaction with biotinamidocaproate N-hydroxysuccinimide ester (biotin-NHS) purchased from Sigma-Aldrich (cat no. B2643). Briefly, free amino groups of the target protein (GLK) are reacted with biotin-NHS at a defined molar ratio forming stable amide bonds resulting in a product containing covalently bound biotin. Excess, non- conjugated biotin-NHS is removed from the product by dialysis.
- biotin-NHS biotinamidocaproate N-hydroxysuccinimide ester
- Citric acid 0.38% w/v
- the above formulations may be obtained by conventional procedures well known in the pharmaceutical art.
- the tablets (a)-(c) may be enteric coated by conventional means, for example to provide a coating of cellulose acetate phthalate.
- the aerosol formulations (h)-(k) may be used in conjunction with standard, metered dose aerosol dispensers, and the suspending agents sorbitan trioleate and soya lecithin may be replaced by an alternative suspending agent such as sorbitan monooleate, sorbitan sesquioleate, polysorbate 80, polyglycerol oleate or oleic acid.
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Abstract
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Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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US10/482,264 US7199140B2 (en) | 2001-06-26 | 2002-06-24 | Vinyl phenyl derivatives as GLK activators |
DE60215814T DE60215814T2 (en) | 2001-06-26 | 2002-06-24 | Vinylphenyl derivatives as Glk activators |
JP2003506907A JP2005500311A (en) | 2001-06-26 | 2002-06-24 | Vinylphenyl derivatives as GLK activators |
EP02743377A EP1406620B1 (en) | 2001-06-26 | 2002-06-24 | Vinyl phenyl derivatives as glk activators |
HK04105775A HK1062888A1 (en) | 2001-06-26 | 2004-08-04 | Vinyl phenyl derivatives as glk activators |
US11/544,946 US20070093535A1 (en) | 2001-06-26 | 2006-10-10 | Vinyl phenyl derivatives as GLK activators |
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SE0102299-5 | 2001-06-26 | ||
SE0102299A SE0102299D0 (en) | 2001-06-26 | 2001-06-26 | Compounds |
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US11/544,946 Division US20070093535A1 (en) | 2001-06-26 | 2006-10-10 | Vinyl phenyl derivatives as GLK activators |
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EP (1) | EP1406620B1 (en) |
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AT (1) | ATE344033T1 (en) |
DE (1) | DE60215814T2 (en) |
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Also Published As
Publication number | Publication date |
---|---|
SE0102299D0 (en) | 2001-06-26 |
DE60215814D1 (en) | 2006-12-14 |
US7199140B2 (en) | 2007-04-03 |
EP1406620B1 (en) | 2006-11-02 |
ES2274047T3 (en) | 2007-05-16 |
HK1062888A1 (en) | 2004-12-03 |
EP1406620A1 (en) | 2004-04-14 |
US20070093535A1 (en) | 2007-04-26 |
ATE344033T1 (en) | 2006-11-15 |
DE60215814T2 (en) | 2007-09-06 |
JP2005500311A (en) | 2005-01-06 |
US20050054715A1 (en) | 2005-03-10 |
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