AU2013209344B2 - Sphingosine 1 phosphate receptor modulators and their use to treat muscle inflammation - Google Patents

Abstract

H:\fmt\Interwoven\NRPortbl\DCC\FMT\53484I8_I.DOC-25/07/2013 The use of an SiP receptor modulator of the formula (Ia) or (Tb) wherein the meaning of the different residues is that indicated in claim 1, in the preparation of a medicament for preventing, inhibiting or treating an inflammatory condition selected from polymyositis, dermatomyositis and nerve-muscle diseases e.g. muscular dystrophies and inclusion body myositis.

Description

H:\fmt\Intenoven\NRPortbl\DCC\MT5348428_I.DOC-25/07/2013 SPHINGOSINE 1 PHOSPHATE RECEPTOR MODULATORS AND THEIR USE TO TREAT MUSCLE INFLAMMATION This is a divisional of Australian Patent Application No. 2009273259, the entire contents of which are incorporated herein by reference. Field of the Invention The present invention relates generally to specific sphingosine 1 phosphate (S1 P) receptor modulators, and more specifically to their use to treat muscle inflammation such as polymyositis and other inflammatory conditions such as dermatomyositis and nerve-muscle diseases e.g. muscular dystrophies and inclusion body myositis. Background Polymyositis is an immune-mediated disorder leading to an inflammation of the muscles. It results in weakness that can be severe. Polymyositis is a chronic illness with periods of increased symptoms, called flares or relapses, and minimal or no symptoms, known as remissions. The therapy of such muscle inflammation diseases, and in particular polymyositis, is only partially effective, and in most cases only offers a short delay in disease progression despite anti-inflammatory and immunosuppressive treatment. Accordingly, there is a need for agents which are effective in the inhibition or treatment of muscle diseases, e.g. polymyositis, including reduction of, alleviation of, stabilization of or relief from the symptoms which affect the muscles. Summary of the invention In accordance with a first aspect of the invention, there is provided the use of an S1P receptor modulator of the formula la or Ib: \ _ R2 A- Z Y 2 N R -W 1ia WO 2010/010127 PCT/EP2009/059440 A ZR 2 W lb wherein A is -C(O)OR 5 , -OP(O)(OR) 2 , -P(O)(OR) 2 , -S(0) 2 0R 5 , -P(O)(R 5

)OR

5 or 1H-tetrazol-5 yl, R 5 being H or C 1

.

6 alkyl; 5 W is a bond, C 1

.

3 alkylene or C 2

-

3 alkenylene; Y is C.

1 oaryl or C 2

-

9 heteroaryl e.g. C 3

.

9 heteroaryl, optionally substituted by 1 to 3 radicals selected from halogen, -OH, -NO 2 , C 1

.

6 alkyl, C 1

.

6 alkoxy; halo-substituted C 1

.

6 alkyl and halo-substituted C 1

.

6 alkoxy; Z is chosen from: *,N-" N *N * N^* *-N:: *N *N *-N * N N F F

R

6 OH N R ,N% * *

R

6 F 6 * HO HO * .N . .'N * * N 6 R 6 R and J 10 wherein the left and right asterisks of Z indicate the point of attachment between -

C(R

3

)(R

4 )- and A of Formula la or Ib, respectively; R 6 is chosen from hydrogen and 1. 6 alkl and J 1 and J 2 are independently methylene or a heteroatom chosen from S, 0 and NRs; wherein Rs is chosen from hydrogen and C 1

.

6 alkyl; and any alkylene of Z can be 15 further substituted by one to three radicals chosen from halo, hydroxy, C 1

_

6 alkyl; or R 6 can 2 WO 2010/010127 PCT/EP2009/059440 be attached to a carbon atom of Y to form a 5-7 member ring e.g. a heterocyclic group as indicated in WO 04/103306A, e.g. azetidine;

R

1 is C 6

.

1 oaryl or C 2

-

9 heteroaryl e.g C 3

-

9 heteroaryl, optionally substituted by C1.

6 alkyl,

C

6

.

1 oaryl, C 6

.

1 oarylC 1 4 alkyl, C 3

.

9 heteroaryl, C 3

.

9 heteroarylC 1 .4alkyl, C 3

.

8 cycloalkyl, C3. 5 8 cycloalkylC 1 4 alkyl, C 3

.

8 heterocycloalkyl or C 3

.

8 heterocycloalkylC 1

.

4 alkyl; wherein any aryl, heteroaryl, cycloalkyl or heterocycloalkyl of R 1 may be substituted by 1 to 5 groups selected from halogen, C 1

.

6 alkyl, C 1

.

6 alkoxy and halo substituted-C 1

.

6 alkyl or -C 1

.

6 alkoxy; and any alkyl group of R 1 can optionally have a methylene replaced by an atom or group chosen from -S-, -S(0)-, -S(0)2-, -NR 5 - and -0-; wherein R 5 is chosen from hydrogen or C1. 10 6 alkyl;

R

2 is H, C 1

.

6 alkyl, halo substituted C 1

.

6 alkyl, C 2

.

6 alkenyl or C 2

-

6 alkynyl: and each of R 3 or R 4 , independently, is H, halogen, OH, C 1

.

6 alkyl, C 1

.

6 alkoxy or halo substituted

C

1

.

6 alkyl or C 1

.

6 alkoxy; and the N-oxide derivatives thereof or prodrugs thereof, individual isomers and mixtures of 15 isomers thereof; and the pharmacologically acceptable salts, solvates or hydrates thereof, in the preparation of a medicament for preventing, inhibiting or treating an inflammatory condition selected from polymyositis, dermatomyositis and nerve-muscle diseases e.g. muscular dystrophies and inclusion body myositis. In accordance with a second aspect of the invention, there is provided an SiP receptor 20 modulator as defined in the first aspect for use in preventing, inhibiting or treating an inflammatory condition selected from polymyositis, dermatomyositis and nerve-muscle diseases e.g. muscular dystrophies and inclusion body myositis. In accordance with a third aspect of the invention, there is provided a method for preventing, inhibiting or treating an inflammatory condition such as polymyosisitis, 25 dermatomyositis and nerve-muscle diseases e.g. muscular dystrophies and inclusion body myositis, in a subject in need thereof, comprising administering to said subject a therapeutically effective amount of an S1 P receptor modulator as defined in the first aspect. In accordance with a fourth aspect of the invention, there is provided a pharmaceutical composition comprising an S1 P receptor modulator as defined in the first aspect for use in 30 preventing, inhibiting or treating an inflammatory condition selected from polymyositis, dermatomyositis and nerve-muscle diseases e.g. muscular dystrophies and inclusion body myositis together with one or more pharmaceutically acceptable diluents or carriers therefor. 3 C: \Users\rec\AppData\Loca\Microsoft\Winow\TemporarynTternet Files \Content.Otlook\167A3K4V\PAT052736-AU-PCTD Amendedpages 35206531DOCX-27/11/2015 In accordance with a further aspect of the invention, there is provided use of an SIP receptor modulator of the formula Ia: wherein A is -C(O)OR 5 , -OP(O)(OR) 2 , -P(O)(OR) 2 , -S(O) 2 0R 5 , -P(O)(R 5

)OR

5 or 1H tetrazol-5-yl, R 5 being H or C 1

.

6 alkyl; W is a bond, C1.3alkylene or C 2 -3alkenylene; Y is Cs-ioaryl or C 2

-

9 heteroaryl e.g. C 3

.

9 heteroaryl, optionally substituted by 1 to 3 radicals selected from halogen, -OH, -NO 2 , C 1

.

6 alkyl, C 1

.

6 alkoxy; halo-substituted C 1 . 6 alkyl and halo-substituted C 1

.

6 alkoxy; Z is chosen from: wherein the left and right asterisks of Z indicate the point of attachment between -C(R 3

)(R

4 )- and A of Formula Ia, respectively; R 6 is chosen from hydrogen and Ci- 6 alkyl; and Ji and J 2 are independently methylene or a heteroatom chosen from S, 0 and

NR

5 ; wherein R 5 is chosen from hydrogen and C 1

.

6 alkyl; and any alkylene of Z can be further substituted by one to three radicals chosen from halo, hydroxyl, CI.

6 alkyl; or R 6 is attached to a carbon atom of Y to form a 5-7 member heterocyclic group; -4- C: \Uers\rec\AppData\Local\Microsoft\Wlinows\Temporary Internet Files\Content.Outlook\167A3K4V\PATU52736-AU-PCTD Amended pages 35206532.DOCX-27/11/2015

R

1 is Cs.1oaryl or C 2

-

9 heteroaryl e.g. C 3

.

9 heteroaryl, optionally substituted by C 1 . 6 alkyl, C 6 -10aryl, C6-10arylC I- 4 alkyl, C 3

-

9 heteroaryl, C 3

.

9 heteroarylCI.

4 alkyl, C 3 .scycloalkyl, C3.scycloalkylCi 4 alkyl, C 3 .sheterocycloalkyl or C 3 .sheterocycloalkylCi 4 alkyl; wherein any aryl, heteroaryl, cycloalkyl or heterocycloalkyl of R 1 may be substituted by 1 to 5 groups selected from halogen, Ci- 6 alkyl, Ci- 6 alkoxy and halo substituted-C 1 6 alkyl or -CI 6 alkoxy; and any alkyl group of R 1 can optionally have a methylene replaced by at atom or group chosen from -S-, -S(O)-, -S(O) 2 -, -NR 5 - and -0-; wherein R 5 is chosen from hydrogen or Ci- 6 alkyl;

R

2 is H, C1.

6 alkyl, halo substituted C1.

6 alkyl, C 2

-

6 alkenyl or C 2

-

6 alkynyl; and each of

R

3 or R 4 , independently, is H, halogen, OH, C1.

6 alkyl, C1.

6 alkoxy or halo substituted C 1 . 6 alkyl or CI- 6 alkoxy; and the N-oxide derivatives thereof or prodrugs thereof, individual isomers and mixtures of isomers thereof; and the pharmacologically acceptable salts, solvates or hydrates thereof, in the preparation of a medicament for preventing, inhibiting or treating inclusion body myositis. Brief description of the Figures Figures 1(a) and 1(b) show the beneficial effects of the compounds of the invention on cytokine induced myotube atrophy. Figure 1(a) shows myotube diameter following exposure to DMSO (control); varying concentrations of compound A; and cytokine with varying concentrations of compound A. Figure 1(b) shows myotube diameter as a percentage of the control myotube diameter (exposed to DMSO control) following exposure to varying concentrations of compound A; and cytokine with varying concentrations of compound A. Detailed description of the invention SIP receptor modulators which can be used according to the invention are compounds of formula Ia or Ib, e.g. as disclosed in WO 04/103306A, WO 05/000833, WO 05/103309 or WO 05/113330, the contents of which are hereby incorporated by reference to the extent permitted by national law. For example, the SIP receptor modulator may be a compound of formula Ia or lb as defined below: - 4A - C: \Uers rec\AppData\Loca1Mcrosoft\WlidowvsTemporay Intert Files\Content.Otook\167A3K4V\PAT052736-AU-PCTD Amenderpagee 35206531D0CX-27/ 1/ 2015 A -Z W N lb wherein A is -C(O)0R 5 , -OP(O)(0R 5

)

2 , -P(O)(0R 5

)

2 , -S(O) 2 0R 5 , -P(O)(R 5 )0R 5 or 1H tetrazol-5-yl, R 5 being H or CI 6 alkyl; W is a bond, CI 3 alkylene or C 2

-

3 alkenylene; - 4B - WO 2010/010127 PCT/EP2009/059440 Y is C 6

.

1 oaryl or C 2 -sheteroaryl e.g. C 3 -sheteroaryl, optionally substituted by 1 to 3 radicals selected from halogen, -OH, -NO 2 , C 1

.

6 alkyl, C 1

.

6 alkoxy; halo-substituted C1.

6 alkyl and halo-substituted C 1

.

6 alkoxy; Z is chosen from: N* N*N" *-N> * NN 6F F R, OHKN.-. FF

R

6 *RIol *N R6 *%.1

R

6 F R6 NH O . r .IN * H O *4* -. N .^ *%N a* * N*

R

6

R

6 R, R 6 and J2 5 Re wherein the left and right asterisks of Z indicate the point of attachment between C(R 3 )(R4)- and A of Formula la or Ib, respectively; R 6 is chosen from hydrogen and C 1 . 6 alkyl; and J 1 and J 2 are independently methylene or a heteroatom chosen from S, 0 and

NR

5 ; wherein R 5 is chosen from hydrogen and C 1

.

6 alkyl; and any alkylene of Z can be 10 further substituted by one to three radicals chosen from halo, hydroxy, C 1

.

6 alkyl; or R 6 can be attached to a carbon atom of Y to form a 5-7 member ring e.g. a heterocyclic group as indicated in WO 04/103306A, e.g. azetidine;

R

1 is C 6

.

1 oaryl or C 2

-

9 heteroaryl e.g C 3 -sheteroaryl, optionally substituted by C1.

6 alkyl,

C

6

.

1 oaryl, C 6

.

1 oarylC 1

.

4 alkyl, C 3 -sheteroaryl, C 3 .heteroarylC 1

.

4 alkyl, C 3

.

8 cycloalkyl, C 3 15 scycloalkylC 1

.

4 alkyl, C 3

-

8 heterocycloalkyl or C 3

.

8 heterocycloalkylC 1

.

4 alkyl; wherein any aryl, heteroaryl, cycloalkyl or heterocycloalkyl of R 1 may be substituted by 1 to 5 groups selected from halogen, C 1

.

6 alkyl, C 1

.

6 alkoxy and halo substituted-C 1

.

6 alkyl or -C 1

.

6 alkoxy; and any alkyl group of R 1 can optionally have a methylene replaced by an atom or group chosen 5 WO 2010/010127 PCT/EP2009/059440 from -S-, -S(O)-, -S(0) 2 -, -NRs- and -0-; wherein R 5 is chosen from hydrogen or C 1 . 6 alkyl;

R

2 is H, C 1

.

6 alkyl, halo substituted C 1

.

6 alkyl, C 2

.

6 alkenyl or C 2

.

6 alkynyl: and each of R 3 or R 4 , independently, is H, halogen, OH, C 1

.

6 alkyl, C 1

.

6 alkoxy or halo substituted 5 C 1

.

6 alkyl or C 1

.

6 alkoxy; and the N-oxide derivatives thereof or prodrugs thereof, individual isomers and mixtures of isomers thereof; and the pharmacologically acceptable salts, solvates or hydrates thereof. For these compounds of Formula la or Ib, in one embodiment R 1 is phenyl, naphthyl or thienyl optionally substituted by C 6

.

1 oaryl, C 6

.

1 oarylC 1 4alkyl, C 2

-

9 heteroaryl, C 2

-

9 heteroarylC 1 . 10 4 alkyl, C 3

.

8 cycloalkyl, C 3

.

8 cycloalkylC 1 4alkyl, C 3

.

8 heterocycloalkyl, C 3

-

8 heterocycloalkylC 1 . 4 alkyl or C 1

.

6 alkyl; wherein any aryl, heteroaryl, cycloalkyl or heterocycloalkyl group of R 1 can be optionally substituted by one to five radicals chosen from halo, C 1

.

6 alkyl, C 1

.

6 alkoxy, halo-substituted-C 1 .alkyl and halo-substituted-C 1

.

6 alkoxy; and any alkyl group of R 1 can optionally have a methylene replaced by an atom or group chosen from -S-, -S(O)-, 15 S(0) 2 -, -NR 5 - and -0-; wherein R 5 is hydrogen or C 1

.

6 alkyl. In another embodiment, Y is chosen from: N 3N N] N _ T,* * <11 R7 * ~ * ;* / -4 / -*; *- *, ; - - *; -- *; N S ; and * 20 wherein R 7 is hydrogen or C 1

.

6 alkyl; and the left and right asterisks of Y indicate the point of attachment a) either between -C(R 2

)=NOWR

1 and the -CR 3

R

4 -, or between -CR 3

R

4 - and

-C(R

2

)=NOWR

1 of Formula la, respectively, or b) either between -CR 3

R

4 - and W or between W and -CR 3

R

4 - of Formula Ib, respectively; wherein any aryl or heteroaryl of Y 6 WO 2010/010127 PCT/EP2009/059440 can be optionally substituted with 1 to 3 radicals chosen from halo, hydroxy, nitro, C 1

.

6 alkyl,

C

1

.

6 alkoxy, halo-substituted C 1

.

6 alkyl and halo-substituted C 1

.

6 alkoxy. In a further embodiment, R 1 is chosen from:

R

8 r,<0 R r and R 5 * R 8

R

8 wherein the asterisk is the point of attachment of R 1 with W; R 8 is C 6 .1oaryl, C 6

.

1 oarylC 1 . 4 alkyl, C 2

-

9 heteroaryl, C 2

-

9 heteroarylC 1 .4alkyl, C 3

-

8 cycloalkyl, C 3

-

8 cycloalkylC 1 .4alkyl, C 3 8 heterocycloalkyl, C 3

.

8 heterocycloalkylC14alkyl or C 1

.

6 alkyl; wherein any aryl, heteroaryl, 10 cycloalkyl or heterocycloalkyl group of R 8 can be optionally substituted by one to three radicals chosen from halo, C 1

.

6 alkyl, C 1

.

6 alkoxy, halo-substituted-C 1

.

6 alkyl and halo substituted-C 1

.

6 alkoxy; and any alkyl group of R 8 can optionally have a methylene replaced by an atom or group chosen from -S-, -S(O)-, -S(O) 2 -, -NR 5 - and -0-; wherein R 5 is hydrogen or C 1

.

6 alkyl; and R 9 is chosen from halo, C 1

.

6 alkyl, C 1

.

6 alkoxy, halo-substituted-C 1 . 15 6 alkyl and halo-substituted-C 1

.

6 alkoxy. In another embodiment, A is -C(O)OH; and Z is chosen from: *% N'* R6R R6 *-NN N * *.N

R

6 OH R F 20 wherein the left and right asterisks of Z indicate the point of attachment between C(R 3 )(R4)- and A of Formula la or Ib, respectively; R 6 is chosen from hydrogen and C 1 . 6 alkyl; and R 3 and R 4 are both hydrogen. In a further embodiment, Y is chosen from phenyl, pyridinyl, thienyl and furanyl; wherein any phenyl, pyridinyl, thienyl or furanyl of Y is optionally substituted with 1 to 3 25 radicals chosen from methyl, ethyl, cyclopropyl, chloro, bromo, fluoro and methoxy; or where Y is phenyl, R 6 can be attached to a carbon atom of Y to form 3,4-dihydro-1 H isoquinolin-2-yl. In another embodiment, W is a bond or methylene; R 1 is chosen from: 7 WO 2010/010127 PCT/EP2009/059440 R9- and R9- *RS RS wherein R 8 is chosen from phenyl, cyclohexyl, thienyl, 3,3-dimethyl-butyl, pyridinyl, cyclopentyl and piperidinyl; wherein R 8 can be optionally substituted by 1 to 3 radicals 5 chosen from trifluoromethyl, methoxy, fluoro, triflouromethoxy and methyl; and R 9 is chosen from trifluoromethyl, fluoro, methyl, chloro, methoxy and ethyl. Preferred compounds of the invention include: 3-{4-[1-(2-Trifluoromethyl-biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 3 {4-[l-(4-Cyclohexyl-3-trifluoromethyl-benzyloxyimino)-ethyl]-2-ethyl-benzylamino}-propionic 10 acid, 1 -{4-[1-(4-Cycl ohexyl-3-trifluoromethyl-benzyl oxyi min o)-ethyl]-2-ethyl-benzyl} azetidine-3-carboxylic acid, 3-({2-Chloro-6-[1-(4-cyclohexyl-3-trifluoromethyl benzyloxyimino)-ethyl]-pyridin-3-ylmethyl}-ami no)-propionic acid, 3-({6-[1-(4-Cyclohexyl-3 triflu oromethyl-benzyl oxyi min o)-ethyl]-2-ethyl-pyridi n-3-ylmethyl}-ami no)-propionic acid, 3-{4 [1-(Biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 4-{4-[1-(Biphenyl-4 15 ylmethoxyimino)-ethyl]-benzylamino}-butyric acid, 1-{4-[1-(Biphenyl-4-ylmethoxyimino) ethyl]-benzyl}-azetidine-3-carboxylic acid, 1-{4-[1-(Biphenyl-4-ylmethoxyimino)-ethyl] benzyl}-piperidine-3-carboxylic acid, {4-[1-(Biphenyl-4-ylmethoxyimino)-ethyl]-benzylamin o} acetic acid, 3-{4-[1-(Biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-cyclopentanecarboxylic acid, 3-{4-[1-(4'-Trifluoromethyl-biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic 20 acid, 3-{4-[1-(5-Phenyl-furan-2-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1 (3'-Trifluoromethyl-biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1 (3-Trifluoromethyl-biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1 (4'-Methoxy-biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1 (Biphenyl-3-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1-(4-Thiophen-2-yl 25 benzyloxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1-(4-Thiophen-2-yl-3 trifluoromethyl-benzyloxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1-(4'-Fluoro biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1-(4'-Trifluoromethoxy biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1-(3'-Trifluoromethoxy biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 1-{4-[1-(2-Trifluoromethyl 30 biphenyl-4-ylmethoxyimino)-ethyl]-benzyl}-azetidine-3-carboxylic acid, 1 -{4-[1-(2 Trifluoromethyl-biphenyl-4-ylmethoxyimino)-ethyl]-benzyl}-pyrrolidine-3-carboxylic acid, 1 -{4 [1-(2-Trifluoromethyl-biphenyl-4-ylmethoxyimino)-ethyl]-benzyl}-piperidine-3-carboxylic acid, 8 WO 2010/010127 PCT/EP2009/059440 3-{4-[1 -(3'-Methoxy-biphenyl-4-y m eth oxyi mino)-ethyl]-benzyla min ol-propionic acid, 2 Hyd roxy-3-{4-[1 -(2-trifluoromethyl-biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1 -(4'-Methyl-biph enyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4 [1 -(4-Ph enyl-thiophen-2-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 1 -{4-[l 5 (Biphenyl-4-ylmethoxyimino)-ethyl]-benzyl}-pyrrolidine-3-carboxylic acid, 3-{4-[1 -(4-Fu ran-3 yI-benzyloxyi mino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1 -(4-Th iophen-3-yI-3 trifluoromethyl-benzyloxyimino)-ethyl]-benzylaminol-proponic acid, 3-{4-[1 -(4-Th iophen-3-y 2-trifluoromethyl-benzyloxyimino)-ethyl]-benzylaminol-propionic acid, 2-Fluoro-3-{4-[1 -(2 trifluoromethyl-biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4-[l -(2 10 Triflu oromethyl-biph enyl-4-ylmethoxyimi no)-ethyl]-benzyla min o}-butyric acid, 3-{4-[1 -(5 Phenyl-thiophen-2-ylmethoxyimino)-ethyl]-benzylaminol-propionic acid, 3-{4-[1 -(4 Cycloh exyl-benzyloxyi mino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1 -(3-Fluoro-biph enyl 4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1 -(4'-Fluoro-2-trifluoromethyl biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1 -(4'-Methyl-2 15 trifluoromethyl-biphenyl-4-ylmethoxyimi no)-ethyl]-benzylamino}-propionic acid, 3-{4-[1 -(4 Eu ran-2-yI-3-trifluoromethyl-benzyloxy mino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1 -(2' Flu oro-2-trifluoromethyl-biphenyl-4-ylm ethoxyimino)-ethyl]-benzylamin o-propionic acid, 3 (4-{1 -[4-(3 ,3-Dimethyl-butyl)-3-trifluoromethyl-benzyloxyimino]-ethyll-benzylamino)-propionic acid, 3-{4-[1 -(4-Furan-3-yI-3-trifl uoromethyl-benzyloxyi min o)-ethyl]-benzylamin o}-proponi c 20 acid, 3-{4-[1 -(4-Pyridin-3-yI-benzyl oxyi mino)-ethyl]-benzyla min o}-propionic acid, 3-{4-[1 -(4 Pyridi1n-4-yI-benzyl oxyi min o)-ethyl]-benzyla mino}-propionic acid, 3-{4-[1 -(2-Fluoro-biphenyl 4-ylmeth oxyimino)-ethyl]-benzyla min o}-propionic acid, 3-({2-Methoxy-6-[1 -(2-triflu oromethyl biph enyl-4-ylmethoxyimino)-ethyl]-pyridin-3-ylmethyl}-amino)-propionic acid, 3-{4-[1 -(4 Cycl oh exyl-3-triflu oromethyl-benzyl oxyi min o)-ethyl]-2-ethyl-ben zyl amino-propioni c acid, 3 25 {4-[1 -(4-Cyclohexyl-3-trifluoromethyl-benzyloxyimino)-ethyl]-benzylamino}-propionic acid, 3 {2-Bromo-4-[1 -(4-cyclohexyl-3-trifluoromethyl-benzyloxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1 -(4-Cyclopentyl-3-trifl uoromethyl-benzyl oxyimin o)-ethyl]-benzylamino}-propioni c acid, 3-{2-Ch Ioro-4-[l1-(4-cycl ohexyl-3-triflu oromethyl-benzyloxyimi no)-ethyl]-benzyl amin ol propionic acid, 3-({6-[1 -(4-Cyclohexyl-3-trifluoromethyl-benzyloxyimino)-ethyl]-pyridin-3 30 ylmethyl}-amino)-propionic acid, 3-({5-[l -(4-Cycl oh exyl-3-triflu oro met hyl-ben zyl oxyi min o) ethyl]-thiophen-2-ylmethyl}-amino)-proponic acid, 3-({5-[1 -(4-Cyclohexyl-3-trifluoromethyl benzyloxyimino)-ethyl]-pyridin-2-ylmethyl}-amino)-propionic acid, 3-({5-[1 -(4-Cyclohexyl-3 trifluoromethyl-benzyloxyimino)-ethyl]-furan-2-ylmethyl}-amino)-propionic acid, 3-({2-[l -(4 9 WO 2010/010127 PCTIEP2009/059440 Cyclohexyl-3-trifluoromethyl-benzyloxyimino)-ethyl]-pyridin-4-ylmethyl}-amino)-propionic acid, 3-{4-[1 -(4-Cyclohexyl-3-fluoro-benzyloxyi mino)-ethyl]-benzylamino}-propionic acid, 3 {2-Chloro-4-[1 -(4-cyci ohexyl-3-trifluoromethyl-benzyloxyi mino)-ethyl]-benzylamino}-propionic acid, I -{6-[1 -(4-Cyclohexyl-3-trifluoromethyl-benzyloxyimino)-ethyl]-2-ethyl-pyridin-3 5 ylmethyl}-azetidine-3-carboxylic acid, 3-{2-Ethyl-4-[1 -(4-piperidin-1 -yI-3-trifluoromethyl benzyloxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4-[1 -(4-Cyclohexyl-3-methyl benzyl oxyi min o)-ethyl]-2-ethyl-benzyl amin ol-propionic acid, 3-{4-[1 -(3-Chloro-4-cycloh exyl benzyl oxyi min o)-ethyl]-2-ethyl-benzyl amino}-propionic acid, 3-{4-[1 -(4-Cyclohexyl-3 m eth oxy-benzyl oxyi min o)-ethyl]-2-ethyl-benzylamin o}-propionic acid, I -{4-[1 -(4-Cyclohexyl 10 3-meth oxy-benzyl oxyi mi no)-ethyl]-2-ethyl-benzyl}-azetid ine-3-carboxylic acid, 3-{4-[1 -(4 Cyclohexyl-3-triflu oromethyl-benzyl oxyimino)-ethyl]-2-methyl-benzylamin o}propionic acid, I -{4-[I -(4-Cyclohexyl-3-trifluoromethyl-benzyloxyimino)-ethyl]-2-methyl-benzyl}-azetidi ne-3 carboxylic acid, 3-{4-[I -(4-Cyci ohexyl-3-trifluoromethyl-benzyloxyimino)-ethyl]-2-cyclopropyl benzylamino}-propionic acid, 1 -{4-[I -(4-Cyclohexyl-3-triflu oromethyl-benzyloxyi min o)-ethyl] 15 2-cyclopropyl-benzyl}-azetidine-3-carboxylic acid, 3-{2-Ethyl-4-[1 -(2-trifluoromethyl-biphenyl 4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid, 1 -{4-[1 -(4-CycIohexyl-3-ethyl ben zyl oxyi min o)-ethylI]-2-ethyl-benzyl}-azetid in e-3-ca rboxyl ic acid, 1 -{4-[I -(4-Cyclohexyl-3 methyl-benzyloxyimino)-ethyl]-2-ethyl-benzyl}-azetidine-3-carboxylic acid, I -{2-Chloro-4-[1 (4-cyclohexyl-3-ethyl-benzyl oxyi min o)-ethyl]-benzyl}-azetid i ne-3-carboxylic acid,3-2 20 Chloro-4-[1 -(4-cyclohexyl-3-ethyl-benzyloxyimino)-ethyl]-benzylamino}-propionic acid, 3-{4 [ 1 -(4-CycI oh exyl-3-triflIu orom eth yl-benzyl oxyi min o)-ethyl]-2-fl uoro-ben zyl amin o}propi on ic acid, 1 -{4-[I -(4-Cycl ohexyl-3-trifl uoromethyl-benzyl oxyi min o)-ethyl]-2-fI uoro-benzyl} azetidine-3-carboxylic acid, 3-{6-[I -(4-Cycl ohexyl-3-triflu oromethyl-benzyl oxyi min o)-ethyl] 3,4-dihydro-1 H-isoquinolin-2-yI}-propionic acid, 3-{6-[1 -(4-Cyclohexyl-3-ethyl 25 benzyloxyi min o)-ethyl]-3,4-d ihydro-1 H-isoquinolin-2-yI}-propionic acid, 3-{4-[1 -(2 Trifluoromethyl-biphenyl-4-yI)-ethylideneaminooxymethyl]-benzylamino-propionic acid, -4 [1 -(4-Cyclohexyl-3-trifluoromethyl-phenyl)-ethylideneamin ooxymethyl]-benzylamino} propionic acid, 3-{4-[l -(4-Cycloh exyl-3-trif lu oromethyl-ph enyl )-ethyli!den ea min ooxym ethyl ]-2 ethyl-benzylamino}-propionic acid, 1 -{4-[1 -(4-Cyclohexyl-3-triflu oromethyl-phenyl) 30 ethy lid enea min ooxym ethyl]-2-eth yl-benzy l}azetid ine-3-ca rboxyl1c acid and I -{4-[1 -(4 Cyclohexyl-3-ethyl-phenyl)-ethyliden eami nooxymethyl]-2-ethyl-benzyl}-azetidine-3 carboxylic acid. 10 WO 2010/010127 PCTIEP2009/059440 The invention provides forms of the compound that have the hydroxyl or amine group present in a protected form; these function as prodrugs. Prodrugs are compounds that are converted into an active drug form after administration, through one or more chemical or biochemical transformations. Forms of the compounds of the present invention that are 5 readily converted into the claimed compound under physiological conditions are prodrugs of the claimed compounds and are within the scope of the present invention. Examples of prodrugs include forms where a hydroxyl group is acylated to form a relatively labile ester such as an acetate ester, and forms where an amine group is acylated with the carboxylate group of glycine or an L-amino acid such as serine, forming an amide bond that is 10 particularly susceptible to hydrolysis by common metabolic enzymes. When the compounds of Formula la or lb have asymmetric centers in the molecule, various optical isomers are obtained. The present invention also encompasses enantiomers, racemates, diastereoisomers and mixtures thereof. Moreover, when the compounds of Formula la or lb include geometric isomers, the present invention embraces cis-compounds, 15 trans-compounds and mixtures thereof. Similar considerations apply in relation to starting materials exhibiting asymmetric carbon atoms or unsaturated bonds as mentioned above. Compounds of Formula la or lb can exist in free form or in salt form, e.g. addition salts with inorganic or organic acids. Where hydroxyl groups are present, these groups can also be present in salt form, e.g. an ammonium salt or salts with metals such as lithium, sodium, 20 potassium, calcium, zinc or magnesium, or a mixture thereof. Compounds of Formula la or lb and their salts in hydrate or solvate form are also part of the invention. A preferred compound of formula la is e.g. 1-{4-[1-(4-cyclohexyl-3-trifluoromethyl benzyloxyimino)-ethyl]-2-ethyl-benzyl}-azetidine-3-carboxylic acid (Compound A), or a pharmaceutically acceptable salt or prodrug thereof. 25 Unless otherwise stated, alkyl, alkoxy, alkenyl or alkynyl may be straight or branched. Halo or halogen means F, Cl, Br or I, preferably F or Cl. Halo-substituted alkyl groups and compounds can be partially halogenated or perhalogenated, whereby in the case of multiple halogenation, the halogen substituents can be identical or different. A preferred perhalogenated alkyl group is for example trifluoromethyl or trifluoromethoxy. 30 Any double bonds can be in the cis- or trans- configuration. "Alkynyl" as a group and as structural element of other groups and compounds contains at least one C = C triple bond and can also contain one or more C=C double bonds, and can, so far as possible, be either 11 WO 2010/010127 PCT/EP2009/059440 straight-chain or branched. Any cycloalkyl group, alone or as a structural element of other groups can contain from 3 to 8 carbon atoms, preferably from 3 to 6 carbon atoms. "Alkylene" and "alkenylene" are divalent radicals derived from "alkyl" and "alkenyl" groups, respectively. In this application, any alkyl group of R 1 can be optionally interrupted by a 5 member of the group selected from -S-, -S(O)-, -S(0)2-, -NR 20 - and -0- (wherein R 20 is hydrogen or C 1

.

6 alkyl). These groups include -CH 2 -0-CH 2 -, -CH-S(O)-CH-, -(CH 2

)

2 NR 20

-CH

2 -, -CH 2 -0-(CH 2

)

2 -, and the like. "Aryl" means a monocyclic or fused bicyclic aromatic ring assembly containing six to ten ring carbon atoms. For example aryl, e.g. C 6 .1oaryl, can be phenyl, biphenyl or naphthyl, such as 10 phenyl or naphthyl, preferably phenyl. A fused bicyclic ring can be partially saturated, for example, 1,2,3,4-tetrahydro-naphthalene, and the like. "Heteroaryl" means aryl, as defined in this application, with the addition of at least one heteroatom moiety selected from N, 0 or S, and each ring is comprised of 5 to 6 ring atoms, unless otherwise stated. For example, C 2 heteroaryl includes oxadiazole, triazole, and the 15 like. Cgheteroaryl includes quinoline, 1,2,3,4-tetrahydro-quinoline, and the like. C2. 9 heteroaryl as used in this application includes thienyl, pyridinyl, furanyl, isoxazolyl, benzoxazolyl or benzo[1,3]dioxolyl, preferably thienyl, furanyl or pyridinyl. A fused bicyclic heteroaryl ring system can be partially saturated, for example, 2,3-dihydro-1H-isoindole, 1,2,3,4-tetrahydro-quinoline, and the like. 20 According to the invention, inflammatory myopathies include, but are not limited to muscle inflammations, polymyositis, dermatomyositis, nerve-muscle diseases such as muscular dystrophies, and inclusion body myositis (IBM). It has now been found that the SIP receptor modulators of the invention have an inhibitory effect on inflammatory myopathies, e.g. polymyositis. 25 In a series of further specific or alternative embodiments, the present invention provides: 1.1 A method for preventing, inhibiting or treating muscle inflammation or inflammatory myopathies, e.g. polymyositis, in a subject in need thereof, comprising administering to said subject a therapeutically effective amount of a S1P receptor modulator of the invention modulator, e.g. a compound of formulae la or Ib, e.g. Compound A. 30 1.2 A method for alleviating or delaying progression of the symptoms of an inflammatory myopathy, e.g. polymyositis, in a subject in need thereof, in which method muscle inflammation associated with said disease is prevented or inhibited, comprising 12 WO 2010/010127 PCT/EP2009/059440 administering to said subject a therapeutically effective amount of a SiP receptor modulator of the invention, e.g. a compound of formulae la or Ib, e.g. Compound A. 1.3 A method for reducing or preventing or alleviating relapses in an inflammatory myopathy, e.g. polymyositis, in a subject in need thereof, in which method muscle 5 inflammation associated with said disease is prevented or inhibited, comprising administering to said subject a therapeutically effective amount of a S1P receptor modulator of the invention, e.g. a compound of formulae la or Ib, e.g. Compound A. 1.4 A method for slowing progression of an inflammatory myopathy, e.g. polymyositis, in a subject being in a relapsing-remitting phase of the disease, in which method 10 muscle inflammation associated with said disease is prevented or inhibited, comprising administering to said subject a therapeutically effective amount of a SiP receptor modulator of the invention modulator, e.g. a compound of formulae I or Ib, e.g. Compound A. 2. A pharmaceutical composition for use in any one of the methods 1.1 to 1.5, 15 comprising a S1P receptor modulator of the invention, e.g. a compound of formulae la or Ib, e.g. Compound A, as defined hereinabove, together with one or more pharmaceutically acceptable diluents or carriers therefor. 3. A S1 P receptor modulator of the invention, e.g. a compound of formula la or Ib, e.g. Compound A, as defined herein above, for use in any one of the methods 1.1 to 1.5. 20 4. A S1 P receptor modulator of the invention, e.g. a compound of formula la or Ib, e.g. Compound A, as defined herein above, for use in the preparation of a medicament for use in any one of the methods 1.1 to 1.5. 5. Use of a S1P receptor modulator of the invention, e.g. a compound of formula la or lb, e.g. Compound A as defined herein above, in any one of the methods 1.1 to 1.5 25 e.g. 1.1. 6. Use of a S1P receptor modulator of the invention, e.g. a compound of formulae Ia or Ib, e.g. Compound A as defined herein above, in the preparation of a medicament for use in a method according to one of the methods 1.1 to 1.5 e.g. 1.1. 7. A method, use, or pharmaceutical composition according to any one of the 30 preceding paragraphs 1.1-1.5 and 2-6 wherein the S1P receptor modulator of the invention is 1-{4-[1-(4-cyclohexyl-3-trifluoromethyl-benzyloxyimino)-ethyl]-2-ethyl 13 WO 2010/010127 PCTIEP2009/059440 benzyl}-azetidine-3-carboxylic acid in free form or in a pharmaceutically acceptable salt form. Administration 5 Daily dosages required in practicing the method of the present invention when a S1P receptor modulator of the invention alone is used will vary depending upon, for example, the compound used, the host, the mode of administration and the severity of the condition to be treated. A preferred daily dosage range is about from 0.01 to 100 mg as a single dose or in divided doses. Suitable daily dosages for patients are on the order of from e.g. 0.03 to 2.5 10 mg/kg per body weight. The S1 P receptor modulators of the invention may be administered by any conventional route, in particular enterally, e.g. orally, e.g. in the form of tablets, capsules, parenterally, e.g. in the form of injectable solutions or suspensions, or topically, e.g. in the form of lotions, gels, ointments or creams, or in a nasal or a suppository form. Suitable unit dosage forms for oral administration comprise from ca. 0.5 to about 100 mg, 15 e.g. 1 to 50 mg S1P receptor modulator of the invention, together with one or more pharmaceutically acceptable diluents or carriers therefore. The compounds of Formula la or lb may be administered as the sole active ingredient or in conjunction with, e.g. as an adjuvant to, other drugs e.g. immunosuppressive or immunomodulating agents or other anti-inflammatory agents. For example the compounds 20 of Formula la or lb may be used in combination with a calcineurin inhibitor, e.g. cyclosporin A or FK 506; an ascomycin having immunosuppressive properties, e.g. ABT-281, ASM981, etc.; corticosteroids; cyclophosphamide; azathioprene; methotrexate; leflunomide; mizoribine; mycophenolic acid; mycophenolate mofetil; 15-deoxyspergualine or an immunosuppressive homologue, analogue or derivative thereof; immunosuppressive 25 monoclonal antibodies, e.g. monoclonal antibodies to leukocyte receptors, e.g. MHC, CD2, CD3, CD4, CD7, CD8, CD25, CD28, CD40. CD45, CD58, CD80, CD86 or their ligands; other immunomodulatory compounds, e.g. a recombinant binding molecule having at least a portion of the extracellular domain of CTLA4 or a mutant thereof, e.g. an at least extracellular portion of CTLA4 or a mutant thereof joined to a non-CTLA4 protein sequence, 30 e.g. CTLA41g (for ex. designated ATCC 68629) or a mutant thereof, e.g. LEA29Y; adhesion molecule inhibitors, e.g. LFA-1 antagonists, ICAM-1 or -3 antagonists, VCAM-4 antagonists or VLA-4 antagonists. 14 WO 2010/010127 PCTIEP2009/059440 Methods of preparing the compounds for use in the invention The compounds for use in the aspects of the invention may, for example, be prepared by the methods specified in WO 2004/103306. Examples 5 Utility of the S1P receptor modulators of the invention, e.g. 1-{4-[1-(4-cyclohexyl-3 trifluoromethyl-benzyloxyimino)-ethyl]-2-ethyl-benzyl}-azetidine-3-carboxylic acid (Compound A), in preventing or treating an inflammatory myopathy, e.g. polymyositis, as hereinabove specified, may be demonstrated in vitro, in animal test methods as well as in clinic, for example in accordance with the methods hereinafter described. 15 WO 2010/010127 PCT/EP2009/059440 In vitro: effect on cytokine-induced atrophy of Primary human myotubes. Human skeletal muscle (skMC) cells are obtained from Cambrex (#CC-2561). For experiments skMC stocks are thawed and maintained in SkBM (Lonza CC-3161) containing 20% FCS and 0.1% gentamycin at 37*C, 5% CO 2 . After 4-5 days cells are seeded for 5 experiments onto six-well plates coated with matrigel (450,000/well) and grown at 37 0 C, 5%

CO

2 for one day. Cells are then washed 3x with SkBM and differentiated into myotubes with SkBM containing 1pM SB431542 (ALK4/5 inhibitor; Sigma #S4317) for 4 days (SB431542 is removed 24h prior cell treatment). Myotubes are then treated with test compound either in the absence or in the presence of a cytokine cocktail (TNFa 10 ng/ml, IL-1B 2 ng/ml, IFNy 10 10 ng/ml) for 24h in SkBM plus 0.1% gentamycin, washed once with CSB buffer: 80mM pipes, 5nM EGTA, 1mM MgCl 6H 2 0 and 4% PEG35000 (Fluka #94646) and fixed with 4% paraformaldehyde (Electron Microscopy Sciences #15714) in CSB for 15 min at room temperature. Cells are then rinsed with CSB, permeabilized with 0.2% Triton X-100 (Merk #1.12298.0100) for 20 min at room temperature, rinsed with CSB and blocked with 10% 15 normal goat serum blocking solution (Zymed Laboratories #50-062Z) for 20 min at room temperature. Primary antibody (anti-myosin heavy chain antibody; Upstate #05-716) diluted 1:500 in PBS containing 1.5% goat serum is added for 1h at room temperature. Myotubes are then washed 2x with CSB (5 min/wash) then add secondary antibody (Alexa Fluor 488 F(ab'); Invitrogen #A11017) diluted 1:750 in PBS is added for 1h at room temperature. 20 Myotubes are washed once with CSB (10 min) then with PBS (Invitrogen # 14190) and double distilled water. Finally, ProLong Gold antifade reagent with DAPI (Invitrogen #P36931) is added and myotubes are photographed. Average diameters of at least 40 myotubes are measured for each condition at three points separated by 50 pm along the length of the myotube. 25 Human primary myoblasts, differentiated for 4 days and treated with cytokine cocktail for 24 h, fixed, and assayed for changes in myotube diameters show distinct atrophic phenotype with an approx. 20% decrease in myotube diameter as compared to vehicle control. Addition of Compound A at a concentration of 1nM is sufficient to block almost completely the cytokine-induced atrophy. Higher concentrations of Compound A exert the 30 same effect. The results are shown in Figures 1(a) and 1(b). 16 WO 2010/010127 PCT/EP2009/059440 In vivo: controllable muscle-specific promoter system to up-regulate MHC class I in the skeletal muscle of mice, as described e.g. in K. Nagaraju et al (PNAS, August 1, 2000, Vol 97, No. 16, p 9209-9214), the content thereof being included by reference. Briefly, mice transgenic for both a transactivator (tTA) under the control of a muscle creatine 5 kinase promoter (T*) and the tetracycline-responsive element (TRE)-H-2Kb (H*) are used. In H*T* mice, the binding of a tetracycline analog to tTA prevents transactivator from binding to the TRE region, thereby preventing target gene expression. Thus, the transgenic H-2Kb expression can be induced by removing the tetracycline analog and suppressed by administering it. Mice having only the tetracycline-responsive element (TRE)-H-2Kb (H*,) 10 serve as control. H*T* mice develop clinical, biochemical, histological, and immunological features similar to human myositis. First signs of disease are muscle weakness (about 3 months of age in females, i.e. 2 months after transgene induction). Behavioral assays are used to measure developing muscle weakness (e.g. treadmill, RotaRod, open field locomotor activity, running wheel, grip test). Other readouts of the 15 model include blood markers indicative for muscle damage (CK, GOT etc.), and histopathology and immunohistochemistry of skeletal muscle (incl. mononuclear cell infiltrate, CD3* T cell infiltrate, ICAM, etc.). Application of compound in the therapeutic mode may start around 3 months of age in female mice (2 month after transgene induction), when first clinical signs of muscle 20 weakness occur and may last e.g. for 2 months. Compounds are applied i.p., s.c. or via sirup drops into the mouth. Oral gavage is not recommended due to dystrophy of pharyngeal muscles. Groups of n=8 mice are used. Compounds are applied to mice having both transgenes, H*T* and mice having only the tetracycline-responsive element (TRE)-H 2Kb (H*, control). Vehicle-treated animals are compared to compound-treated animals. 25 Application of compound in the prophylactic mode starts from day of transgene induction. Both, therapeutic and prophylactic treatment mode can be combined with other therapeutics, like e.g. prednisone or comparable steroids. 17 C: \Usersrec\AppData\Local\Microsoft\Windows\Temporary Internet Files\Contt.Outtlook\167A3K4V\PAT52736-AU-PCTD Amended pages 35206532.DOCX-27/11/2015 The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates. Throughout this specification and the claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" and "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps. - 17A -

Claims (10)

1. Use of an SIP receptor modulator of the formula Ia: AR> wherein A is -C(O)OR 5 , -OP(O)(OR) 2 , -P(O)(OR) 2 , -S(O) 2 0R 5 , -P(O)(R 5 )OR 5 or 1H tetrazol-5-yl, R 5 being H or CI 6 alkyl; W is a bond, C1.3alkylene or C 2 -3alkenylene; Y is Cs-ioaryl or C 2 - 9 heteroaryl e.g. C 3 . 9 heteroaryl, optionally substituted by 1 to 3 radicals selected from halogen, -OH, -NO 2 , C 1 . 6 alkyl, C 1 . 6 alkoxy; halo-substituted C 1 . 6 alkyl and halo-substituted CI. 6 alkoxy; Z is chosen from: 'N -N k.P F wherein the left and right asterisks of Z indicate the point of attachment between -C(R 3 )(R 4 )- and A of Formula Ia, respectively; R 6 is chosen from hydrogen and Ci- 6 alkyl; and Ji and J 2 are independently methylene or a heteroatom chosen from S, 0 and NR 5 ; wherein R 5 is chosen from hydrogen and CI 6 alkyl; and any alkylene of Z can be further substituted by one to three radicals chosen from halo, hydroxyl, CI 6 alkyl; or R 6 is attached to a carbon atom of Y to form a 5-7 member heterocyclic group; - 18 - C: \Uers\rec\AppData\Local\Microsoft\Wlinows\Temporary Internet Files\Content.Outlook\167A3K4V\PATU52736-AU-PCTD Amended pages 35206532.DOCX-27/11/2015 R 1 is Cs-ioaryl or C 2 - 9 heteroaryl e.g. C 3 . 9 heteroaryl, optionally substituted by C 1 . 6 alkyl, C 6 - 1 oaryl, C6- 1 oarylC 1 - 4 aky1, C3- 9 heteroaryl, C 3 . 9 heteroarylC 1 . 4 alkyl, C 3 .scycloalkyl, C3.scycloalkylCI. 4 alkyl, C 3 .sheterocycloalkyl or C 3 .sheterocycloalkylCi 4 alkyl; wherein any aryl, heteroaryl, cycloalkyl or heterocycloalkyl of R 1 may be substituted by I to 5 groups selected from halogen, Ci- 6 alkyl, Ci- 6 alkoxy and halo substituted-C 1 6 alkyl or -C 1 . 6 alkoxy; and any alkyl group of R 1 can optionally have a methylene replaced by at atom or group chosen from -S-, -S(O)-, -S(O) 2 -, -NR 5 - and -0-; wherein R 5 is chosen from hydrogen or Ci- 6 alkyl; R 2 is H, C 1 . 6 alkyl, halo substituted C 1 . 6 alkyl, C 2 - 6 alkenyl or C 2 - 6 alkynyl; and each of R 3 or R 4 , independently, is H, halogen, OH, C 1 . 6 alkyl, C 1 . 6 alkoxy or halo substituted C 1 . 6 alkyl or CI- 6 alkoxy; and the N-oxide derivatives thereof or prodrugs thereof, individual isomers and mixtures of isomers thereof; and the pharmacologically acceptable salts, solvates or hydrates thereof, in the preparation of a medicament for preventing, inhibiting or treating inclusion body myositis.

2. The use of claim 1, wherein, in the compound of formula Ia, R 1 is phenyl, naphthyl or thienyl optionally substituted by C 6 -garyl, C 6 -loarylC 1 . 4 alkyl, C 2 - 9 heteroaryl, C 2 9 heteroarylCI. 4 alkyl, C 3 .scycloalkyl, C 3 .scycloalkylCI. 4 alkyl, C 3 .sheterocycloalkyl, C 3 . 8 heterocycloalkylCI1 4 alkyl or Ci- 6 alkyl; wherein any aryl, heteroaryl, cycloalkyl or heterocycloalkyl group of R 1 can be optionally substituted by one to five radicals chosen from halo, Ci- 6 alkyl, Ci- 6 alkoxy, halo-substituted-C 1 . 6 alkyl and halo-substituted-C 1 . 6 alkoxy; and any alkyl group of R 1 can optionally have a methylene replaced by an atom or group chosen from -S-, -S(O)-, -S(O) 2 -, -NR 5 - and -0-; wherein R 5 is hydrogen or C1. 6 alkyl.

3. The use of claim 1 or 2, wherein, in the compound of formula Ia, Y is chosen from: - 19 - C: \Users\rec\AppData\Loca1Microsoft\Windows\Temporary Internet Files\Content.Otlook\167A3K4V\PAT052736-AU-PCTD Amended pages 35206532DOCX-27/11/2015 N ~-N N0 -~ -~ ;and2 wherein R 7 is hydrogen or Ci- 6 alkyl; and the left and right asterisks of Y indicate the point of attachment a) either between -C(R 2 )=NOWR 1 and the -CR 3 R 4 -, or between -CR 3 R 4 and -C(R 2 )=NOWR 1 of Formula Ia, respectively; wherein any aryl or heteroaryl of Y can be optionally substituted with 1 to 3 radicals chosen from halo, hydroxyl, nitro, C 1 . 6 alkyl, Ci- 6 alkoxy, halo-substituted C 1 . 6 alkyl and halo-substituted C 1 . 6 alkoxy.

4. The use of claim 1, wherein, in the compound of formula Ia, R 1 is chosen from: wherein the asterisk is the point of attachment of R 1 with W; Rs is C 6 oaryl, C 6 . ioarylCI. 4 alkyl, C 2 - 9 heteroaryl, C 2 - 9 heteroarylCI. 4 alkyl, C 3 .scycloalkyl, C 3 .scycloalkylC1. 4 alkyl, C 3 .sheterocycloalkyl, C 3 .sheterocycloalkylCI. 4 alkyl or Ci- 6 alkyl; wherein any aryl, heteroaryl, cycloalkyl or heterocycloalkyl group of Rs can be optionally substituted by one to three radicals chosen from halo, Ci- 6 alkyl, Ci- 6 alkoxy, halo-substituted-C 1 . 6 alkyl and halo-substituted-C 1 6 alkoxy; and any alkyl group of Rs can optionally have a methylene replaced by an atom or group chosen from -S-, -S(O) 2 -, -NR 5 - and -0-; wherein R 5 is hydrogen or Ci- 6 alkyl; and R 9 is chosen from halo, Ci- 6 alkyl, Ci- 6 alkoxy, halo-substituted Ci- 6 alkyl and halo-substituted-C 1 . 6 alkoxy.

5. The use of any one of claims I to 4, wherein, in the compound of formula Ia, A is C(O)OH; Z is chosen from: - 20 - C: \Usersrec\AppData\Local\Microsoft\Winados\Temporary internet Files\ContentOutlook\167A3K4V\PAT52736-AU-PCTD A end pages 35206532.DOCX-27/11/2015 wherein the left and right asterisks of Z indicate the point of attachment between -C(R 3 )(R 4 )- and A of Formula Ia, respectively; R 6 is chosen from hydrogen and C 1 - 6 alkyl; and R 3 and R 4 are both hydrogen.

6. The use of claim 5, wherein, in the compound of formula Ia, Y is chosen from phenyl, pyridinyl, thienyl and furanyl; wherein any phenyl, pyridinyl, thienyl or furanyl of Y is optionally substituted with 1 to 3 radicals chosen from methyl, ethyl, cyclopropyl, chloro, bromo, fluoro and methoxy; or where Y is phenyl, R 6 can be attached to a carbon atom of Y to form 3,4-dihydro-1H-isoquinolin-2-yl.

7. The use of claim 6, wherein, in the compound of formula Ia, W is a bond or methylene; R 1 is chosen from: R- R9 and R 9 1R wherein Rs is chosen from phenyl, cyclohexyl, thienyl, 3,3-dimethyl-butyl, pyridinyl, cyclopentyl and piperidinyl; wherein Rs can be optionally substituted by 1 to 3 radicals chosen from trifluoromethyl, methoxy, fluoro, trifluoromethoxy and methyl; and R 9 is chosen from trifluoromethyl, fluoro, methyl, chloro, methoxy and ethyl.

8. The use of claim 6, wherein the compound of formula Ia is selected from: 3-{4-]1-(2 Trifluoronethykbiphnyl-4ylmethoxyiminoethylkbenzylamino}-propionic acid, 3-{44l(4 CyclohexyI-3-trifluromethylkbenzyloxyiminobethylp2-ethybenzylamino}-propionic acid, 1 {4-(l-(4-Cyclohexy-3-trfluoromethyI-benzyloxyimino)-thyJ-2-ethy-benzyl)-azetidine-3 carboxylic acid, 3-({2-Chloro-6 {1-(4-cyclohexy[3-trifluoromethyl-benzyloxyimino)-ethyl} - 21 - C: Users eec\AppDare LecalMcreseft\WirrilssTemporay Intert Files\Cerrrert.Orrlek\IFTA3K4V\PAT052736-AU-PCTD Arrrrrerprges 35206531D0CX-27/ 1/ 2015 pyddin-3y. methyl-amino)-propienic acid. 3((6-41 44-Cyciohex<yb3-trifiuoromethy[ benzyfoxyim'nc)-ethy-2-ethyl-pyridiw-3-ylmethyl)yamin~oy pmpionic acid, 34441 4$Biphentl4 ylmethexviminc)-ethylj-benzyiamino)-propicoic acid, 4441 -(Biphenyl4myknmethoxyimina) ethyi)-benzylamino)-butyric acid, 1441f I 8iphenylA4-ylrethoxyino)ethyllbenyl} azetidine43-caftaylic acid, 141441 4Biphenyl--ytmehoxyirniino~th$Jt-enzylypiperidine4.3 catoxyic acid, {4-Al4-BiphenWylrntiethexyimino-ethyllbenzyaminoy acetic acid, 34(441 (Siphenyb-4-yfrnethox<Yimino),ethyllbenzyamino-ryclopentanecarboxyluc acid, 3-441 44'-~ Trifiuermethy-biptenyl-4ynethxyimino)thyl-ezymin}-propionic acid, 3441-S Phe$4uar~ynehoyirino~etyI~eny~anfrc~rpicicacid, 34414-3' Trifluowomethy -biphenylA-ylmethexyimino}-,ethyI~tenzytamino)-propionic acid, 344411 43 Tifluoromethy-bipheiyl,'±ylrethoxyirino)ethyltbenyaminoypropionic acid, $4-441 4V Methoxy-biphenyM--ylmethoxyimino)-ethyqi-benzylamino)-propionic acid. 3f4411 Bipheny-3 ytmethoxyiminoy-ethyfl-benr.ylarnino}-progionic acid, 3-441 44-Thiaphen-2-yk benzyboxyimino)tthyl-benzytaminc}-prcpicnlc acid, 3-441 44-Thiophen-2-y-3 triffornettyk-benzloxyimno)-athy4-teylaino)-propionico acid, 3-441 44'(4Fkscro bitphenyi-4rniethoxyimic)ethyllbenzylamibo)-propionic acid, 3441 44'-'Trifuoromethoxy bpheny4ymethoxyimino)-ethylJ-benzylamino)-propionic acid, 3-441 43-Triuoronetxy biphanyP4-ylrnethcxyinino)-eh.$yq-benz4aminoypropionic acid, 1-44 l42-Trifluoromethyk bipheny-4-yimethoxyirinoy-ethybenz$t)-aetidine3carboxyki acid, 14411-(2 Trifluornmathylbipheny4ylmethoxyirin)emhys-ber y}-pvaciidine-s-carboxytuc acid, 1-44 fl(1 rfurmty-ihnt4-tehxiio-ty]bnzl-priie3croyi acid, $4441 43'-Methoxy-biptianyI-4-ylmethoxyimino)-ethy4J-benzylamino)-propionic acid, 2 Hydroxy-3-44I 4(2-thifluoromethyk-bipheny-4nylmethoxyiminioy-ethyfltbenzylaminoypropionic acid, 3-441-(4 1 -Methy-tiphanyk4-ylmethoxyimino)-ethyllbenzyiamino}-prcpicnic acid, 3-4 Ii 44-Phenyk-thicphe-n-2yyrnethoxyitrtc)ethylj-bezylaminc~propionic acid, 1-444t (Biphenk~yk4-yrnethoxyiminol-ethyl-benryI-pyrrlidin-3-carboxyhe acid, 3-44 1-(4-Euran-3 yt-benzylox<yimino)-ethyu)-benzylamrnr)-propionic acid, 3-441 -(4-Thicphen-3-yl-3 trifluoromethyi-bentyloxyimido)-ethytj-benzylamine},-propionic acid, 3-441 -(4-Thinphen-3-yl 2-tritlheromethyl-benzyloxyirnino)-ethylj-benzyiamino}-propicnic acid, 2-Flucro-344-41 -(2-~ trifttoromethylkbipheny-4-.ylrnethoxyimina)-ethyll-banzylamino)-prvpidnic acid, $4441 -(2 ThtIfuorcmethy-bpheny-4-yfrnethoxyimino)-ethyIjnbenzyamnino}butyric acid, 3441 Phenthiophen-2-4methoxyiminc}-eth yflt-enzyiam nc}-propionic acid, 34414l-4 Cydohexyb-benzyxymin)-ethyl-benzylamin}l-propIonic acid, 3441 43-Pluorc-biphenyI-4 yfrathoxyiminc)-ethyl3.benzylamino-)-propicnic acid, 344-(-4'-Fuorc-2-trifluoromethy[ - 22 - C \Usr ec\AppData\Local\Macaesoft\WnaalssTemporary lteroer Files\Contrtol Dotooo I6TA3K4V\PAtP52736-AU-PCTD Arraoaea pages 35206532.DOCX-27/ It/2015 biphenyi-4iymethexyimino)-ethyI) tenzyiatnino)-propionic acid, 34(4-f 1 44'-Methyb-2 trifiuoromethyl-biphenyk-4-ylmethoxyimino)-ethyl-benzylamjno 0 }propon 0 acid, 34{4-fl 44 Fua--i3rfurmty-ezlximn)ehl-e~yaio-rpoi acid, 34(4-fl -(2' Floo2tilooehlbpey--letoymn)ehUbnyaia-rpoi acid, 34 4 (I -44$,$-DimethYI-butylh-34rfluorcmethylbenzyloxyiminoJ-etbyl)ybenzyfamino)-propionic acid, 344411-( 4 -Furan-3-y-3-trifluoromethy- benzylcxyimino)-ethylipbenzylaminoy-propionic acid, 3-{4-f I 4 4 -Pyridin-3-yl-benzyoxyrnlna)-emhyJ-benzytaminoy-proponic acid, 3-4414(4 Pyridin-4-yk-benzylcxyimino)tthyql-benzyamino4-propionjc acid, 3-441 -(2-Fluorcnbiphenyl-4 yirnethoxyirinc)-ethyll-benzylarninc)-prcpicnic acid, 42Mtoy6fI4-rfurmty biPhenAl-4-ylmethoxyimino)-ethy-pyridin-3-ylmernyly-ammno)-prcpionic acid, 3-44144 Cyclohexy -3-trifluoromethyitbenzycxyimino)-ethyl-a-ethy -benzylamino}-propionic acid, 3 (4411-( 4 -Cyeiohexyt-3-trifluoromethy-tenzyoxyiminc)-ethylp-benzylaino)-prpionic acid, 3 {2-BromoA4l -(4-cyclohexyb-3trfluorornethy-tenzykoxyimino)-ethywubenzylamiinoy pmpionic acid, 34441 -( 4 -CvclcPentyI-$-trifluoromethyltbenzyloxyim'no)-ethyql-benzylaminoy-proponic acid, 34{2-Chloro-441 4&4cycohexy1-3-trifluoromethy1-benzytoxyimino)ethyIl-tenzylaminoy propionic acid, 3 -(( 6 -11-4Cyclhexy-3-triftuaromethyk-benzyloxyiminoy-ethylupyridin.3 ylmethyi}-amirio)-prcpionic acid, 3-((54 1 -(4-Cyclohexy[-3-trifluoromethyk-benzyloxyimino). ethy;]thiop hen-2-yhnethy1-arnino)-propienic acid, 3-({541 44-Cyclohexyk 3-trifluoromethy benzvloxyimino)-ethyl-pyridin-2-yImeffiyl)amino)-propionic acid, 3j(5-11 4(4-Cyclohexyl-3 trifluoromethyl-benzyloxyimino)-ethyI14furan-2ymethyqarino)-propioic adid, 3-4{2411-(4 CyclohexyF-3-trifluoromethy-banzyIoxyirino)thy]pyrdiw-4>qnmthyq)amino)-prpionic acid, 3-441 4 4 -Cyclohexy--furo-benzycxyiminoytthyl-benzylamincy-propionic acid, 34-2 Ghlomo-441 4(4-cycbohexyl-S-trfluoomethyl-benzyoxyimino)ethyQtbenzylamino propionc acid, 1 4S4I4- 4 -Cycohexy-3-tffuoromelhyI-banzyloxyimina)-ethy1-~2athyv-pyridin-3 ylmethyQ-azetidine-3-carbexylic acid, 3-42-Ethyi-441 4(4-piperidin-1 -yI-S-trifluoromethyl benzylcxyimino)-ethyll-benzylarnino}-prcpionic acid, 3-441 44-Qyclohexylar3-methy benzyloxyimino}-ethylJ-2ethyk-benzylamino}-propiorpic acid, 3-.{441-(3-Cloro-4-cyclahexy[t benzyloxyimino)-ethyI)-2-ethyk-benzylamino-propionic acid, 3-441444-Cyclchexyk-3-methoxy benzytoxyimino)-ethyl-2-ethyl-banzylamino)-proponic acid, 1 44144-Cyclohexyl-3-methoxy benzyloxyimino)-ethyl-2-ethy-benizy}.azetidine-s-catoxylic acid, 3-4414(4-Cyclohexyl3 trifluoromethy1-benizyloxyimino)-ethyql-z-methyI-benzylamino)-proponic acid, 1-4414(4 Cyciohexy-3-trfluorornethyl-benzyloxyirino)-ehyl-2-methyb-benzyl)}azetidine-3carboxylc acid, 3-44-fl -(4-Cyclchexyt-3-trifluororne.-thyk-benzycxyiminoy-ethyq2-cyclopropp. benzylamino)-propionic acid, 1-44-fl 44-CyclohexyI-3-trifguoromethy-benzyloxyimino)-eh4.l - 23 - C: \Users\rec\AppData\LecalMicrosoft\Windows\Temporary Internet Files\Content.Outlook\167A3K4V\PAT052736-AU-PCTD Amendedpages 35206531DOCX-27/11/2015 2-cyclopropykberzy}-!azetidine-3-carboxylic acid, 3-{2-Ethy4-[I -2-trdfuoromethyiNpheny 4-ylmethoxylmino)-ethylbenzylamino}propionic acid, 1-(4[1-(4-Cycohexy1-3-Othy benzyloxylmino)~ethylb2~ethykenzykazetidine~-carboxylic acid, 1-{4~[ (4-Cyclohexy-3 methyl-benzytoxyimino)-othylar2-eth ybcnzyl)azetidine-3-carboxylic acid, 1-{2-Chloro-441 (4-cycohexy3~thy-benyxyimine)-thy benzy}-azetkine-3-carboxyic acid, 3-(2 Chloro-4-[1-(4-cyctohexyk3-ethy n mlbenzylaminobpropionic acid, 3-{4 (1-(4-Cyclohexyl~3-trIfuoromethy-benzyloxyimino)-ethylj-2-luoro-benzylaminopproponic acid, 1-{4-1-(4-Cyclohexyl3-trifluoromethykbenzyloxyiminoethylb2-fluoro-benzy-t azetidine-3-carboxylic acid, 346-41~(4-Cydohexy3~tifluoromethybenzyxyimino)-ethy 3,4-dihydron- Hisoquiriol4-2-ylppropionic acid, 3-(6-[1-(4CydOhexy-3-ethyk benzyloxyimino)-ethy}3,4-dihydro-1 Hisoquinolin-2-yl}propionic acid, 3-{4-11-(2 Trfluoromethy-bipheny-4-yl)-ethylideneaminooxymethyl-benzylaminopropionic acid, 3-{4 [1-(4~Cyclohoxy13-tifuorothy1-phonylkethyden'ainooxyethylkbnzyaminok propionic acid, 3441~(4-Cycohexyf3-rifluoromehyIphenyethyIdenaaminooxymethy}2 ethiybenzylamino}~propionic acid, 1-{4-[1-(4-Cycohexyk3-trifluor)methy-phenylW ethylldeneaminooxymethyI2-ethybenzyI)-azetidine-3-carboxylic acid and 1-{4-[~(4-4 Cyclohexy -3-ethylphnylkethylldensaminooxymethylk2-ethy-benzyl}-azotidine-3 carboxylic acid.

9. The use of claim 6, wherein the compound of formula Ia is 1-{4-[1-(4-cyclohexyl 3-trifluoromethyl-benzyloxyimino)-ethyl]-2-ethyl-benzyl}-azetidine-3-carboxylic acid (Compound A), or a pharmaceutically acceptable salt or prodrug thereof.

10. A method for preventing, inhibiting or treating inclusion body myositis in a subject in need thereof, comprising administering to said subject a therapeutically effective amount of an SIP receptor modulator as defined in any one of claims I to 9. - 24 -