AU2003266858A1

AU2003266858A1 - Classes of compounds that interact with gpcrs

Info

Publication number: AU2003266858A1
Application number: AU2003266858A
Authority: AU
Inventors: Giovanni Abbenante; Judy Halliday; Giang Le Thanh; Wim Meutermans; Gerald Tometzki; Johannes Zeugg
Original assignee: Alchemia Pty Ltd
Current assignee: Vast Bioscience Pty Ltd
Priority date: 2002-10-11
Filing date: 2003-10-10
Publication date: 2004-05-04
Anticipated expiration: 2023-10-10
Also published as: AU2003266858B2

Description

WO 2004/032940 PCT/AU2003/001347 1 CLASSES OF COMPOUNDS THAT INTERACT WITH GPCRs FIELD OF THE INVENTION The invention provides classes of biologically active compounds that interact in a pharmaceutically significant manner with G-Protein Coupled Receptors 5 (GPCRs), pharmaceutical compositions containing such compounds and methods of treatment of humans suffering from a disorder which can be at least partially overcome by the compounds or compositions. BACKGROUND OF THE INVENTION The drug discovery landscape has been transformed by the genomics 10 revolution. Advances in the understanding of biomolecular pathways and the roles they play in disease will lead to vast numbers of targets for therapeutic intervention. GPCRs represent the most important collection of therapeutic targets available. GPCRs are proteins that tranduce signals across a cell membrane. They consist of a single polypeptide chain that threads back and forth seven times across the 15 phospholipid bilayer that forms the cell membrane. The polypeptide chain has a portion inside the cell which form a G-protein coupling domain, and a receptor portion outside or in the cell wall. A signal molecule interacts with the receptor which sends the signal through the membrane wall and the signal causes the G-protein coupling domain to interact with a G protein. 20 Over 50% of marketed drugs target GPCRs. Whilst the druggable extent of GPCRs numbers some 450 receptors only some 200 GPCRs have been matched with their ligands. Orphan receptors stiitable for drug targeting may therefore number in excess of 200 receptors. These are receptors with less than approximately 45% sequence identity to known GPCRs for which ligands have not 25 been identified. The targets of current GPCR drugs include, pain and inflammation, cancer, metabolic and gastrointestinal, cardiovascular and central nervous system disorders. There is a continuing demand for new therapeutics, especially as our 30 understanding of biological processes expands from the genomics revolution. The aforementioned GPCRs are suitable targets for therapeutic intervention due to their roles in such disorders as cancers, obesity and erectile dysfunction. Considering the rate of generation and nature of the targets currently WO 2004/032940 PCT/AU2003/001347 2 being deconvoluted by biologists, there is a need for the development of drug candidates, designed in a rational manner to purposely interact with selected targets, such as the GPCRs. From a drug discovery perspective, carbohydrate pyranose and furanose 5 rings and their derivatives are well suited as templates. Each sugar represents a three dimensional scaffold to which a variety of substituents can be attached, usually via a scaffold hydroxyl group, although occasionally a scaffold carboxyl or amino group may be present for substitution. By varying the substituents, their relative position on the sugar scaffold, and the type of sugar to which the substituents are coupled, 10 numerous highly diverse structures are obtainable. An important feature to note with carbohydrates, is that molecular diversity is achieved not only in the type of substituents, but also in the three dimensional presentation. The different stereoisomers of carbohydrates that occur naturally, offer the inherent structural advantage of providing alternative presentation 15 of substituents. Employing a related methodology, Hirschmann et al (Hirschmann, R., et. al., J. Am. Chem. Soc., 1992, 114, 9217-9218, US 5,552,534, WO 97/28172, WO 95/11686) synthesised several compounds designed as somatostatin analogues and integrin binders. The methodology employed by Hirschmann relied on protracted, 20 linear, non-combinatorial syntheses, employed exclusively non-aminated pyranoses, and did not exploit any epimerisation chemistry to allow greater access to structural diversity. Consequently, these compounds and methods are manifestly distinct from this present invention. We have developed a system that allows the chemical synthesis of 25 highly structurally and functionally diverse derivatised carbohydrate and tetrahydropyran structures, of both natural and unnatural origin. The diversity accessible is particularly augmented by the juxtaposition of both structural and functional aspects of the molecules. Using the axioms of this drug discovery methodology, we synthesised 30 several novel classes of chemotypes in an effort to develop drug candidates against GPCR targets.

WO 2004/032940 PCT/AU2003/001347 3 SUMMARY OF THE INVENTION It is a general object of the invention to provide compounds that interact with GPCRs in a biologically significant manner, It is an optional object of the invention to provide a pharmaceutical 5 formulation comprising at least one compound as described herein or a pharmaceutically acceptable salt thereof, together with one or more pharmaceutically acceptable carriers, diluents or excipients. In one aspect the invention provides for compounds of general formula I, that interact with GPCRs in a biologically significant manner, 10

R

7

R

6 0

ZR

1

R

5 X

R

4 X

XR

2

XR

3 General Formula I 15 Wherein the ring may be of any configuration; Z is sulphur, oxygen, CH 2 , C(O), C(O)HNRA, NH, NRA or hydrogen, in the case where Z is hydrogen then R 1 is not present, RA is selected from the set defined for R, to Rs, X is oxygen or nitrogen providing that at least one X of General Formula I is nitrogen, 20 X may also combine independently with one of R 1 to R 5 to form an azide, R, to Rs are independently selected from the following definition which includes but is not limited to H or an alkyl, acyl, alkenyl, alkynyl, heteroalkyl, aryl, heteroaryl, arylalkyl or heteroarylalkyl substituent of 1 to 20 atoms, which is. optionally substituted, and can be branched or linear. Typical substituents include but are not 25 limited to OH, NO, NO 2 , NH 2 , N 3 , halogen, CF 3 , CHF 2 , CH 2 F, nitrile, alkoxy, aryloxy, amidine, guanidiniums, carboxylic acid, carboxylic acid ester, carboxylic acid amide, aryl, cycloalkyl, heteroalkyl, heteroaryl, aminoalkyl, aminodialkyl, aminotrialkyl, aminoacyl, carbonyl, substituted or unsubstituted imine, sulfate, sulfonamide, phosphate, phosphoramide, hydrazide, hydroxamate, hydroxamic acid, WO 2004/032940 PCT/AU2003/001347 4 heteroaryloxy, aminoaryl, aminoheteroaryl, thioalkyl, thioaryl or thioheteroaryl, which may optionally be further substituted, and

R

6 and R 7 are hydrogen, or may combine to form a carbonyl function. 5 In one embodiment the invention provides for compounds of general formula II that interact with GPCRs in a biologically significant manner, RX o ZR 1 ReXH

XR

3 General Formula II 10 Wherein RI, R 2 , R 3 , Rs, Z and X are defined as in General Formula I. In a second embodiment the invention provides for compounds of general formula III that interact with GPCRs in a biologically significant manner, 15 O A

R

5X

R

4 X XR 2

XR

3 General Formula III 20 Wherein A is defined as hydrogen, SRI, or ORI where R 1 is defined as in General Formula I, and X and R 2 to R 5 are defined as in General Formula I. In a preferred embodiment the invention provides for compounds of General Formula 25 IV that interact with GPCRs in a biologically significant manner, WO 2004/032940 PCT/AU2003/001347 5 MeO 0 OR 1

HO

'

'"NHR

2

OR

3 General Formula IV 5 Wherein RI-R 3 are defined as in General Formula I. In a second preferred embodiment the invention provides for compounds of General Formula V that interact with GPCRs in a biologically significant manner, R5O 0 OR 1 HReO "'N H R 2 10 OMe General Formula V Where in R 1 , R 2 and R 5 are defined as in General Formula I. 15 In a third preferred embodiment the invention provides for compounds of General Formula VI that interact with GPCRs in a biologically significant manner, NH

R

5 0 O O N

NH

2 H HO"

.N(RA)R

2

OR

3 20 General Formula VI Wherein RA is H or combines with R 2 to form an azide, and

R

3 , R 3 and Rs are defined as in General Formula I. 25 WO 2004/032940 PCT/AU2003/001347 6 In a fourth preferred embodiment the invention provides for compounds General Formula VII that interact with GPCRs in a biologically significant manner of,

R

5 0 0 O SMe H O~ "NHR 2

OR

3 5 General Formula VII Wherein, R 2 , R 3 and R 5 are defined as in General Formula I. 10 In a fifth preferred embodiment the invention provides for compounds of General Formula VIII that interact with GPCRs in a biologically significant manner, MeO

OR

1 H ' " 'N HR 2

OR

3 15 General Formula VIII Wherein R, to R 3 are defined as in General Formula I. In a sixth preferred embodiment the invention provides for compounds of General 20 Formula IX that interact with GPCRs in a biologically significant manner,

R

5 0 SMe HO- 'NHR 2

NH

2

NH

2 WO 2004/032940 PCT/AU2003/001347 7 General Formula IX Wherein R 2 and Rs are defined as in General Formula I. 5 In a seventh preferred embodiment the invention provides for compounds of General Formula X that interact with GPCRs in a biologically significant manner,

R

5 0 0 SMe R HO'

NHR

2 0

NH

2 10 General Formula X Wherein R 2 and R 5 are defined as in General Formula I. In an eighth preferred embodiment the invention provides for compounds of General 15 Formula XI that interact with GPCRs in a biologically significant manner, o 0 SMe ( " HO,,"'-_"'/NHR 2

NH

2

OR

3 General Formula XI 20 Wherein R 2 and R 3 are defined as in General Formula I. In a ninth preferred embodiment the invention provides for compounds of General Formula XII that interact with GPCRs in a biologically significant manner, 25 WO 2004/032940 PCT/AU2003/001347 8 a 0 SMe HO" "NHR 2

NH

2 OR 3 General Formula XII 5 Wherein R 2 and R 3 are defined as in General Formula I. The compounds of the invention may be mixed with a pharmaceutical acceptable carrier, adjuvant, or vehicle which may comprise a-toxic carrier, adjuvant, or vehicle that may be administered to a patient, together with a compound of this 10 invention, and which does not destroy the pharmacological activity thereof The pharmaceutical derivative may comprise a salt, ester, salt of an ester or other derivative of a compound of this invention which, upon administration to a recipient, is capable of providing, either directly or indirectly, a compound of this invention, although no limitation is meant thereby. 15 Compounds of the invention may be administered orally such as by means of a tabled, powder, liquid, emulsion, dispersion and the like; by inhalation; topically such as by means of a cream, ointment, salve etc; and as a suppository, although no limitation is meant thereby.

WO 2004/032940 PCT/AU2003/001347 9 Examples of the Invention Substituents per Example Libraries 1-14 N fNH / N NH N NH G1 NH 2 O G2 NH 2 G3 NH N. 0

NH

2

NH

2 NH 2 Al 0 A2 A3 P1 H P7 P2P3 P4 PS P6 E2 E3 I E N H CI P3 P5 P6 P2 P4 O O E5 H E6 N H 00 N4 NH2 G4 P12 13 E16 HN NH2 NH2 N NH 5N NH 2 / _CN 0gO/

NH

2 0 E8 o9E10 Ell WO 2004/032940 PCT/AU2003/001347 10 Assay Conditions GPCR radioligand binding (RLB) assays Recombinant human receptors expressed in HEK 293 cells were used 5 for all experiments. Receptor membrane preparations were purchased from Perkin Elmer BioSignal. The labelled ligand used in somatostatin GPCR RLB assays was [1 25 I]SST-14 and in melanocortin assays was [125I]NDP-aMSH. All assays were done in a 96-well plate format using either glass fiber filter mats or filter plates. All reagents purchased were of the highest quality. 10 Specific assay buffer, incubation and washing conditions were optimized for each receptor however they all followed the same general format. The procedures for both filter mat and filter plate formats are based on the receptor manufacturers recommendations or those described extensively in the literature. The procedures are briefly outlined below. 15 In assays where filter mats are used we incubate receptor membranes, assay buffer and [12I51] labelled ligand in 96 well microplates. Add compounds to incubation mixture and continue incubation for optimized period. Presoak Filter mat GF/B in 0.5 % PEI for -2 hr at 4'C. On completion of assay mixture incubation add additional 100pL/well of assay buffer immediately prior to filtration. Filter the assay 20 mixture onto the GF/B filter mat using a cell harvester. Dry the filter mats prior to sealing them into a scintillation counting bag with scintillant. Radioactivity in each well is detected by liquid scintillation counting. In assays where filter plates are used Multiscreen glass fiber filter plates (Millipore, Cat No MAFCNOBIO) are precoated with 0.5 % PEI for -2hr at 25 4 0 C. All wells are then washed with 200 El/well assay buffer and filtered using the Multiscreen Separation System. Subsequently receptor membranes, assay buffer and labelled ligands are added to the wells and equilibrated. Compounds for testing are then added to the mixture and incubation is continued for an optimized time. Plates are then put into the Multiscreen Separation System and the assay mixture is filtered 30 through the plate under vacuum. Each well is then washed several times with assay buffer. Plates are then dried prior to putting sealing tape onto the bottom of the plate. Scintillant is added to each well and radioactivity measured by liquid scintillation counting.

WO 2004/032940 PCT/AU2003/001347 11 Comparison of assay conditions for 2 different assays MC4 SST5 Volume OL Receptor membranes 20 (1:40 40 (1:40 dilution dilution of of stock) stock) labelled ligand (-80000 cpm) 10 40 unlabelled ligand - mQH 2 0 - Compounds 10 20 assay buffer 10 100 Total volume (UL) 50 200 5 Data analysis Raw data was analysed according to standard methods using either GraphPad Prism software or IDDBS ActivityBase software. 10 Key for Assay Results Libraries 1-14 "+" Indicates inhibition greater than... 50% "-" Indicates inhibition less than... 50% WO 2004/032940 PCT/AU2003/001347 12 Example Library 1 OR4 0 OR1 H O' '"NHR2 OR3 5 Compound R1 R2 R3 R4 MC4 SST5 Number inhibition at inhibition at 10 10 micromolar micromolar 1 P1 G1 P1 P7 + + 2 P1 G2 P2 P7 - + 3 P1 A3 P3 P7 - + 4 P2 A3 P3 P7 - + 5 P3 G1 P1 P7 + 6 P3 G2 P1 P7 + + 7 P3 A3 P1 P7 - + 8 P3 G3 P1 P7 - + 9 P3 A3 P3 P7 - + 10 P3 G2 P4 P7 - + 11 P3 A3 P4 P7 - + 12 P3 G3 P4 P7 - + 13 P4 G2 P1 P7 + + 14 P4 G2 P2 P7 + + 15 P4 G3 P2 P7 + + 16 P4 A3 P3 P7 - + 17 P4 G2 P4 P7 - + 18 P4 G3 P4 P7 - + 19 P5 G1 P1 P7 + 20 P5 G2 P1 P7 + 21 P6 G2 P1 P7 - + 22 P1 A3 P6 P7 - + 23 P2 A3 P6 P7 - + 24 P2 G3 P6 P7 - + 25 P3 A3 P6 P7 - + 26 P4 A3 P6 P7 - + 27 P5 A3 P6 P7 - + 28 PI A3 P1 P7 + + 29 PI G3 P1 P7 + + 30 P1 G3 P2 P7 + + WO 2004/032940 PCT/AU2003/001347 13 31 P1 G2 P3 P7 - + 32 P1 G2 P4 P7 + + 33 P1 A3 P4 P7 + + 34 P1 G3 P4 P7 + + 35 P2 G1 P1 P7 + + 36 P2 G2 P1 P7 + + 37 P2 A3 P1 P7 + + 38 P2 G2 P2 P7 + + 39 P2 A3 P2 P7 + + 40 P2 G3 P2 P7 + + 41 P2 G3 P3 P7 - + 42 P2 A3 P4 P7 - + 43 P2 G3 P4 P7 + + 44 P4 A3 P1 P7 - + 45 P4 G3 P1 P7 + + 46 P4 A3 P2 P7 + + 47 P4 G3 P3 P7 - + 48 P5 A3 P1 P7 - + 49 P5 G3 P1 P7 + + 50 P5 A3 P2 P7 - + 51 P5 A3 P4 P7 - + 52 P5 G3 P4 P7 - + 53 P1 A3 P1 P7 + + 54 P3 A3 P2 P7 - + 55 P4 A3 P4 P7 - + WO 2004/032940 PCT/AU2003/001347 14 Example Library 2 OR4 O OR1 HO "'NHR2 OR3 Compound R1 R2 R3 R4 MC4 SST5 Number Inhibition at Inhibition at 10 micromolar 10 micromolar 56 P1 G1 P7 P1 + + 57 P1 G2 P7 P1 + + 58 P1 G3 P7 P1 + 59 P1 G1 P7 P2 + 60 P1 G2 P7 P2 - + 61 P1 A3 P7 P2 + + 62 P1 G3 P7 P2 + 63 P1 G1 P7 P4 + 64 P1 G2 P7 P4 + 65 P1 A3 P7 P4 + 66 P1 G3 P7 P4 + 67 P2 G1 P7 P1 + 68 P2 G2 P7 P1 + 69 P2 A3 P7 P1 + + 70 P2 G3 P7 P1 + 71 P2 G1 P7 P2 + 72 P2 G2 P7 P2 + 73 P2 A3 P7 P2 + + 74 P2 G3 P7 P2 + 75 P2 G1 P7 P4 + 76 P2 G2 P7 P4 + 77 P2 A3 P7 P4 + + 78 P2 G3 P7 P4 + 79 P3 G3 P7 P1 + 80 P3 G1 P7 P2 + + 81 P3 A3 P7 P4 - + 82 P3 G3 P7 P4 + 83 P4 G1 P7 P1 + 84 P4 G2 P7 P1 + + 85 P4 A3 P7 P1 - + 86 P4 G3 P7 P1 + + 87 P4 G1 P7 P2 + + WO 2004/032940 PCT/AU2003/001347 15 88 P4 G2P7 P2 + + 89 P4 A3 P7 P2 + + 90 P4 G3 P7 P2 + + 91 P4 A3 P7 P3 - + 92 P4 Gl P7 P4 + 93 P4 G2 P7 P4 + 94 P4 A3 P7 P4 + + 95 P4 G3 P7 P4 + 96 P5 G1 P7 P1 + 97 P5 G2 P7 P1 + 98 P5 A3 P7 P1 + + 99 P5 G3 P7 P1 + 100 P5 GI P7 P2 + 101 P5 G2 P7 P2 + 102 P5 A3 P7 P2 + + 103 P5 G3 P7 P2 + + 104 P5 G1 P7 P4 + 105 P5 G2 P7 P4 + 106 P5 A3 P7 P4 + + 107 P5 G3 P7 P4 + 108 P1 G1 P7 P6 + 109 P2 A3 P7 P6 - + 110 P4 G2 P7 P6 + 111 P4 A3 P7 P6 - + 112 P6 G1 P7 P1 + 113 P6 G2 P7 P1 + 114 P6 A3 P7 P1 + 115 P6 G3 P7 P2 + 116 P6 G2 P7 P2 + 117 P6 G3 P7 P2 + 118 P6 A3 P7 P4 - + WO 2004/032940 PCT/AU2003/001347 16 Example Library 3 OR4 0 SMe HO "~ ."NHR2 OR3 CompoundR2 R3 R4 MC4 SST5 Number inhibition at inhibition at 10 micromolar 10 micromolar 119 Al P3 P3 - + 120 G1 P3 P3 + + 121 A2 P3 P3 + + 122 G2 P3 P3 + + 123 A3 P3 P3 - + 124 G3 P3 P3 + + 125 Al P3 P4 - + 126 G1 P3 P4 + + 127 A2 P3 P4 - + 128 G2 P3 P4 + + 129 A3 P3 P4 + + 130 G3 P3 P4 + + 131 Al P3 P1 - + 132 GI P3 P1 + + 133 A2 P3 P1 + + 134 G2 P3 P1 + + 135 A3 P3 P1 + + 136 G3 P3 P1 + + 137 Al P3 P2 + + 138 G1 P3 P2 + + 139 A2 P3 P2 + + 140 G2 P3 P2 + + 141 A3 P3 P2 + + 142 G3 P3 P2 + + 143 Al P4 P3 - + 144 G1 P4 P3 + + 145 A2 P4 P3 + + 146 G2 P4 P3 + + 147 A3 P4 P3 - + 148 G3 P4 P3 + + 149 Al P4 P4 - + 150 G1 P4 P4 + + 151 A2 P4 P4 + + WO 2004/032940 PCT/AU2003/001347 17 152 G2 P4 P4 + + 153 A3 P4 P4 - + 154 G3 P4 P4 + + 155 Al P4 P1 + + 156 G1 P4 P1 + + 157 A2 P4 P1 + + 158 G2 P4 P1 + + 159 A3 P4 P1 + + 160 G3 P4 P1 + + 161 Al P4 P2 + + 162 G1 P4 P2 + + 163 A2 P4 P2 + + 164 G2 P4 P2 + + 165 A3 P4 P2 + + 166 G3 P4 P2 + + 167 Al P1 P3 + + 168 G1 P1 P3 + + 169 A2 P1 P3 + + 170 G2 P1 P3 + + 171 A3 P1 P3 + + 172 G3 P1 P3 + + 173 Al P1 P4 + + 174 G1 P1 P4 + + 175 A2 P1 P4 + + 176 G2 P1 P4 + + 177 A3 P1 P4 + + 178 G3 P1 P4 + + 179 Al P1 P1 + + 180 G1 P1 P1 + + 181 A2 P1 P1 + + 182 G2 P1 P1 + + 183 A3 P1 P1 + + 184 G3 P1 P1 - + 185 Al P1 P2 + 186 G1 P1 P2 + + 187 A2 P1 P2 + + 188 G2 P1 P2 + + 189 A3 P1 P2 + + 190 G3 P1 P2 + + 191 Al P2 P3 + + 192 G1 P2 P3 + + 193 A2 P2 P3 - + 194 G2 P2 P3 + + 195 A3 P2 P3 + + 196 G3 P2 P3 + + 197 Al P2 P4 + + WO 2004/032940 PCT/AU2003/001347 18 198 GI P2 P4 + + 199 A2 P2 P4 + + 200 G2 P2 P4 + + 201 A3 P2 P4 + + 202 G3 P2 P4 + + 203 Al1 P2 PI + + 204 G1 P2 P1 + + 205 A2 P2 P1 + + 206 G2 P2 P1 + + 207 A3 P2 P1 + + 208 G3 P2 P1 + + 209 Al P2 P2 + + 210 G1 P2 P2 + + 211 A2 P2 P2 + + 212 G2 P2 P2 + + Example Library 4 OMe 0 OR1 H O ' "/NHR2 5 FCR3 Compound R1 R2 R3 MC4 inhibition SST5 Number at 10 inhibition at 10 micromolar micromolar 213 P3 Al P3 - + 214 P3 Gi P3 + + 215 P3 A2 P3 - + 216 P3 G2 P3 + + 217 P3 A3 P3 - + 218 P3 G3 P3 + + 219 P3 Al1 P4 + + 220 P3 Gl P4 + + 221 P3 A2 P4 + + 222 P3 G2 P4 + + 223 P3 A3 P4 + + 224 P3 G3 P4 + + 225 P3 Al1 P1 + + 226 P3 G1 P1 + + WO 2004/032940 PCT/AU2003/001347 19 227 P3 A2P1 + + 228 P3 G2 P1 + + 229 P3 A3 P1 + + 230 P3 G3 P1 + + 231 P3 Al P2 - + 232 P3 G1 P2 + + 233 P3 A2 P2 + + 234 P3 G2 P2 + + 235 P3 A3 P2 + + 236 P3 G3 P2 + + 237 P4 G1 P3 + + 238 P4 A2 P3 - + 239 P4 G2 P3 + + 240 P4 A3 P3 - + 241 P4 G3 P3 + + 242 P4 Al P4 + + 243 P4 G1 P4 + + 244 P4 A2 P4 + + 245 P4 G2 P4 + + 246 P4 A3 P4 + + 247 P4 G3 P4 + + 248 P4 Al P1 + + 249 P4 G1 P1 + + 250 P4 A2 P1 + + 251 P4 G2 P1 + + 252 P4 A3 P1 + + 253 P4 G3 P1 + + 254 P4 Al P2 + + 255 P4 G1 P2 + + 256 P4 A2 P2 + + 257 P4 G2 P2 + + 258 P4 A3 P2 + + 259 P4 G3 P2 + + 260 P5 Al P3 - + 261 P5 G1 P3 + 262 P5 A2 P3 - + 263 P5 G2 P3 + + 264 P5 A3 P3 - + 265 P5 G3 P3 + + 266 P5 Al P4 - + 267 P5 G1 P4 + + 268 P5 A2 P4 + + 269 P5 G2 P4 + + 270 PS A3 P4 + + 271 P5 G3 P4 + + 272 P5 Al P1 + + WO 2004/032940 PCT/AU2003/001347 20 273 P5 Gi P1 + + 274 P5 A2 P1 + + 275 P5 G2 P1 + + 276 P5 A3 P1 + + 277 P5 G3 P1 + + 278 PS Al P2 + + 279 P5 G1 P2 + + 280 P5 A2 P2 + + 281 P5 G2 P2 + + 282 P5 A3 P2 + + 283 P5 G3 P2 + + 284 P2 Al P3 - + 285 P2 G1 P3 + + 286 P2 A2 P3 + + 287 P2 G2 P3 + + 288 P2 A3 P3 - + 289 P2 G3 P3 - + 290 P2 Al P4 - + 291 P2 G1 P4 + + 292 P2 A2 P4 - + 293 P2 G2 P4 + + 294 P2 A3 P4 + + 295 P2 G3 P4 + + 296 P2 Al P1 - + 297 P2 G1 P1 + + 298 P2 A2 PI + + 299 P2 G2 P1 + + 300 P2 A3 P1 + + 301 P2 G3 PI + + 302 P2 Al P2 + + 303 P2 G1 P2 + + 304 P2 A2 P2 - + 305 P2 G2 P2 + + 306 P2 A3 P2 - + 307 P2 G3 P2 + + Example Library 5 OR3 0 SMe HO" - "NHR1 5 OR2 WO 2004/032940 PCT/AU2003/001347 21 Compound R1 R2 113 MC4 inhibition SST5 Number at 10 micromolar inhibition at 10 micromolar 308 P3 N4 E2 + 309 P3 N4 E4 + 310 P3 N4 E5 - + 311 P3 N4 E6 + + 312 P4 N4 El - + 313 P4 N4 E2 + + 314 P4 N4 E4 + 315 P4 N4 E5 - + WO 2004/032940 PCT/AU2003/001347 22 Example Library 6 OR3 0 SMe HO" "N HR1 OR2 Compound RI R2 R3 MC4 inhibition SST5 Number at 10 inhibition at micromolar 10 micromolar 316 El N4 P3 - + 317 E2 N4 P3 + 318 E4 N4 P3 + 319 E5 N4 P3 - + 320 E6 N4 P3 + + 321 El N4 P4 - + 322 E2 N4 P4 - + 323 E4 N4 P4 + 324 E5 N4 P4 + + 325 E6 N4 P4 + 5 Example Library 7 OR3 0 SMe HO" - "NHR1 C)R2 10 Compound R1 R2 R3 MC4 SST5 Number inhibition at inhibition at 10 10 micromolar micromolar 326 El P3 N4 - + 327 E2 P3 N4 + + 328 E4 P3 N4 + 329 ES P3 N4 - + 330 E6 P3 N4 + + 331 El P4 N4 + + WO 2004/032940 PCT/AU2003/001347 23 332 E6 P4 IN4 I + I Example Library 8 OR3 O SMe HO ' "NHR 1 5 OR2 Compound RI R2 R3 MC4 SST5 Number inhibition at inhibition at 10 10 micromolar micromolar 333 El P3 N4 + 334 E2 P3 N4 + 335 E3 P3 N4 + 336 E5 P3 N4 + + 337 E6 P3 N4 - + 338 El P4 N4 + + 339 E2 P4 N4 + + 340 E3 P4 N4 + - I 341 E5 P4 N4 + + Example Library 9 10 OR3 O OR1 HO"' "'NHR2 O)Me Compound R1 R2 R3 MC4 Number Inhibition at 4.0 Micromolar 342 P4 E8 P2 + 343 P4 E9 P2 + 344 P4 E10 P2 + WO 2004/032940 PCT/AU2003/001347 24 345 P4 G1 P2 + 346 P4 E8 P2 + 347 P4 E9 P2 + 348 P4 Ell P2 + 349 P4 G1 P2 + Example Library 10 OR4 0 OR1

HC

'' "NHR2 5 OR3 Compound R1 R2 R3 R4 MC4 Number Inhibition at 4.0 Micromolar 350 P2 A2 P4 P2 + 351 P2 A2 P4 P2 + 352 P2 A2 P4 P3 + 353 P2 A2 P4 P3 + 354 P2 A2 P4 P4 + 355 P2 A2 P4 P4 + 356 P2 A2 P2 P2 + 357 P2 A2 P2 P2 + 358 P2 A2 P2 P3 + 359 P2 A2 P2 P4 + 360 P2 A2 P2 P4 + 361 P2 A2 P3 P2 + 362 P2 A2 P3 P3 + 363 P2 A2 P3 P3 + 364 P2 A2 P3 P4 + 365 P2 A3 P4 P2 + 366 P2 A3 P4 P2 + 367 P2 A3 P4 P4 + 368 P2 A3 P4 P4 + 369 P2 A3 P2 P2 + 370 P2 A3 P2 P4 + 371 P2 A3 P2 P4 + 372 P2 A3 P3 P2 + 373 P2 A3 P3 P2 + WO 2004/032940 PCT/AU2003/001347 25 374 P2 A3 P3 P3 + 375 P2 A3 P3 P4 + 376 P4 A2 P4 P3 + 377 P4 A2 P4 P4 + 378 P4 A2 P2 P2 + 379 P4 A2 P2 P3 + 380 P4 A2 P2 P3 + 381 P4 A2 P2 P4 + 382 P4 A2 P2 P4 + 383 P4 A2 P3 P2 + 384 P4 A2 P3 P3 + 385 P4 A2 P3 P4 + 386 P4 A3 P4 P2 + 387 P4 A3 P4 P3 + 388 P4 A3 P4 P4 + 389 P4 A3 P2 P2 + 390 P4 A3 P2 P2 + 391 P4 A3 P2 P3 + 392 P4 A3 P2 P3 + 393 P4 A3 P2 P4 + 394 P4 A3 P2 P4 + 395 P4 A3 P3 P2 + 396 P4 A3 P3 P4 + Example Library 11 OR4 0 OR1 HO" V "'NHR2 5 R3 Compound Ri R2 R3 R4 MC4 Number Inhibition at 4.0 Micromolar 397 P3 A2 P4 P2 + 398 P3 A2 P4 P3 + 399 P3 A2 P4 P4 + 400 P3 A2 P2 P2 + 401 P3 A2 P2 P3 + 402 P3 A2 P2 P4 + WO 2004/032940 PCT/AU2003/001347 26 403 P3 A2 P3 P2 + 404 P3 A2 P3 P3 + 405 P3 A2 P3 P4 + 406 P3 A3 P4 P2 + 407 P3 A3 P4 P4 + 408 P3 A3 P2 P2 + 409 P3 A3 P2 P3 + 410 P3 A3 P2 P4 + 411 P3 A3 P3 P2 + 412 P3 A3 P3 P4 + 413 P2 A2 P4 P2 + 414 P2 A2 P4 P3 + 415 P2 A2 P4 P4 + 416 P2 A2 P2 P2 + 417 P2 A2 P2 P3 + 418 P2 A2 P2 P4 + 419 P2 A2 P3 P2 + 420 P2 A2 P3 P3 + 421 P2 A2 P3 P4 + 422 P2 A3 P4 P2 + 423 P2 A3 P4 P3 + 424 P2 A3 P4 P4 + 425 P2 A3 P2 P2 + 426 P2 A3 P2 P3 + 427 P2 A3 P2 P4 + 428 P2 A3 P3 P2 + 429 P2 A3 P3 P3 + 430 P2 A3 P3 P4 + Example Library 12 OR4 0 ORI

HO

" "NHR2 5 OR3 CompoundR1 R2 R3 R4 MC4 Number Inhibition at 4.0 Micromolar 431 P3 Gl P4 P2 + WO 2004/032940 PCT/AU2003/001347 27 432 P3 GI P4 P2 + 433 P3 G1 P4 P3 + 434 P3 G1 P4 P3 + 435 P3 G1 P4 P4 + 436 P3 G1 P2 P2 + 437 P3 G1 P2 P2 + 438 P3 G1 P2 P3 + 439 P3 G1 P2 P4 + 440 P3 G1 P2 P4 + 441 P3 G1 P1 P2 + 442 P3 G1 P1 P3 + 443 P3 G1 P1 P3 + 444 P3 G1 P1 P4 + 445 P3 G1 P1 P4 + 446 P3 G2 P4 P2 + 447 P3 G2 P4 P2 + 448 P3 G2 P4 P3 + 449 P3 G2 P4 P3 + 450 P3 G2 P4 P4 + 451 P3 G2 P4 P4 + 452 P3 G2 P2 P2 + 453 P3 G2 P2 P3 + 454 P3 G2 P2 P3 + 455 P3 G2 P2 P4 + 456 P3 G2 P2 P4 + 457 P3 G2 P1 P2 + 458 P3 G2 P1 P2 + 459 P3 G2 P1 P3 + 460 P3 G2 P1 P4 + 461 P3 G2 P1 P4 + 462 P3 G2 P1 P5 + Example Library 13 OR4 0 ORI1

HO

V

' "NHR2 5 OR3 Compound RI R2 R3 R4 MC4 Inhibition Number at 4.0 WO 2004/032940 PCT/AU2003/001347 28 Micromolar 463 Pl G1 P4 P2 + 464 P1 G1 P4 P3 + 465 PI G1 P4 P4 + 466 P1 G1 P2 P3 + 467 PI GI P2 P4 + 468 P1 G1 P1 P3 + 469 PI G1 P1 P4 + 470 P1 G2 P4 P2 + 471 P1 G2 P4 P3 + 472 P1 G2 P4 P4 + 473 PI G2 P2 P2 + 474 P1 G2 P2 P3 + 475 P1 G2 P2 P4 + 476 P1 G2 P1 P2 + 477 P1 G2 P1 P3 + 478 P1 G2 P1 P4 + 479 P4 G1 P4 P2 + 480 P4 G1 P4 P3 + 481 P4 G1 P4 P4 + 482 P4 Gl P2 P2 + 483 P4 G1 P2 P3 + 484 P4 G1 P2 P4 + 485 P4 G1 P1 P2 + 486 P4 G1 P1 P3 + 487 P4 G1 P1 P4 + 488 P4 G2 P4 P2 + 489 P4 G2 P4 P3 + 490 P4 G2 P4 P4 + 491 P4 G2 P2 P2 + 492 P4 G2 P2 P3 + 493 P4 G2 P2 P4 + 494 P4 G2 PI P2 + 495 P4 G2 P1 P3 + 496 P4 G2 P1 P4 + 497 P1 G3 P3 P3 + WO 2004/032940 PCT/AU2003/001347 29 Example Library 14 OH O NHR1

HO

' " "NHR2 OR3 Compound R1 R2 R3 MC4 Inhibition Number at 1.0 Micromolar 498 A2 G4 P3 + 499 A2 G4 P12 + 500 A2 G4 P13 + 501 A2 G4 P1 + 502 A2 El P3 + 503 A2 El P4 + 504 A2 El P12 + 505 A2 El P13 + 506 Al El P3 + 507 Al El P4 + 5 It should be appreciated that various other changes and modifications can be made to any embodiment described without departing from the spirit and scope of the invention.

Claims

1. A method of inhibiting or effecting the activity of a GPCR which comprises contacting a GPCR with a compound of general formula 1, or a pharmaceutically acceptable salt thereof 5 RX * O 0 ZR 1 R 4 X XR

2 XR 3 General Formula I 10 Wherein the ring may be of any configuration; Z is selected from the group consisting of: sulphur, oxygen, or NRA wherein RA is selected from the set defined for R 1 to R 5 or Cl to C 15 acyl, C4 to C 15 arylacyl or C4 to C15 heteroarylacyl, with the proviso that both Rt and RA are not hydrogen, 15 X is selected from the group consisting of: oxygen or NR A providing that at least one X of General Formula I is NR A R, to R 5 are independently selected from the group consisting of: H, Cl to C12 alkyl, 20 Cl to C12 alkenyl, Cl to C12 alkynyl, C1 to C12 heteroalkyl, C4 to C15 aryl, C4 to C15 heteroaryl, C4 to C 15 arylalkyl or C4 to C15 heteroarylalkyl substituent, wherein, when X is NRA, both RA and the corresponding R 1 to R 5 are not hydrogen. 25 2. The method of claim 1, wherein any one of RA or RI to R 5 is substituted with a moiety selected from the group consisting of: OH, NO, NO 2 , NH 2 , N 3 , halogen, CF 3 , CHF 2 , CH 2 F, nitrile, alkoxy, aryloxy, amidine, guanidiniums, carboxylic acid, carboxylic acid ester, carboxylic acid amide, aryl, cycloalkyl, heteroalkyl, heteroaryl, aminoalkyl, aminodialkyl, aminotrialkyl, aminoacyl, carbonyl, 30 substituted or unsubstituted imine, sulfate, sulfonamide, phosphate, phosphoramide, WO 2004/032940 PCT/AU2003/001347 31 hydrazide, hydroxamate, hydroxamic acid, heteroaryloxy, aminoaryl, aminoheteroaryl, thioalkyl, thioaryl or thioheteroaryl.

3. The method of claim 1, wherein the compound is 5 O ZR 1 R5X H O v ' "X 2 XR 3 General Formula II 10

4. The method of claim 1, wherein the compound is O A R 5 X HO XR 2 XR 3 General Formula III 15 Wherein A is selected from the group consisting of: N(RA)R 1 , SR 1 , or OR 1 .

5. The method of claim 1, wherein the compound is MeO 0 OR 1 HO" '"NHR 2 OR 3 20 General Formula IV WO 2004/032940 PCT/AU2003/001347 32

6. The method of claim 1, wherein the compound is R 5 0 0 OR, H 0K' ."/N H R 2 OMe 5 General Formula V

7. The method of claim 1, wherein the compound is O HN NH 2 R O H"/N(RA)R 2 OR 3 10 General Formula VI

8. The method of claim 1, wherein the compound is RsO 5 SMe HO" "NHR 2 OR 3 15 General Formula VII

9. The method of claim 1, wherein the compound is MeO OR 1 HO - NHR 2 OR 3 20 General Formula VIII WO 2004/032940 PCT/AU2003/001347 33

10. The method of claim 1, wherein the compound is Rso 5 0 O SMe HO'*"' NHR 2 NH 2 5 General Formula IX

11. The method of claim 1, wherein the compound is R 5 0 0 SMe HCK ..... NHR2 RSO 'N RH 0 NH 2 10 General Formula X

12. The method of claim 1, wherein the compound is 0 0 ,SMe N HH2.v 'NHR 2 NH 2 OR 3 15 General Formula XI WO 2004/032940 PCT/AU2003/001347 34

13. The method of claim 1, wherein the compound is N0 SMe NH2 ' NH O H Cr",,",,N H R, NH 2 OR 3 5 General Formula XII

14 The method of claim 1, wherein the receptor is a somatostatin receptor.

15. The method of claim 1, wherein the receptor is a melanocortin receptor. 10

16. The method of claim 14, wherein the compound is OR4 O ORI1 H ' "'NHR2 OR3 wherein RI, R2, R3 and R4 are selected from the group combinations of: R1 R2 R3 R4 P1 G1 P1 P7 P1 G2 P2 P7 PI A3 P3 P7 P2 A3 P3 P7 P3 G2 P1 P7 P3 A3 P1 P7 P3 G3 P1 P7 P3 A3 P3 P7 P3 G2 P4 P7 P3 A3 P4 P7 P3 G3 P4 P7 P4 G2 P1 P7 P4 G2 P2 P7 P4 G3 P2 P7 P4 A3 P3 P7 WO 2004/032940 PCT/AU2003/001347 35 P4 G2 P4 P7 P4 G3 P4 P7 P6 G2 P1 P7 P1 A3 P6 P7 P2 A3 P6 P7 P2 G3 P6 P7 P3 A3 P6 P7 P4 A3 P6 P7 P5 A3 P6 P7 P1 A3 P1 P7 P1 G3 P1 P7 P1 G3 P2 P7 P1 G2 P3 P7 P1 G2 P4 P7 P1 A3 P4 P7 P1 G3 P4 P7 P2 G1 P1 P7 P2 G2 P1 P7 P2 A3 P1 P7 P2 G2 P2 P7 P2 A3 P2 P7 P2 G3 P2 P7 P2 G3 P3 P7 P2 A3 P4 P7 P2 G3 P4 P7 P4 A3 P1 P7 P4 G3 P1 P7 P4 A3 P2 P7 P4 G3 P3 P7 P5 A3 P1 P7 P5 G3 P1 P7 P5 A3 P2 P7 PS A3 P4 P7 P5 G3 P4 P7 P1 A3 P1 P7 P3 A3 P2 P7 P4 A3 P4 P7 and wherein the groups A, P and G are as described in "Substituents per Example Libraries 1-14" in the specification. WO 2004/032940 PCT/AU2003/001347 36

17. The method of claim 15, wherein the compound is OR4 O OR1 HO" 'NHR2 OR3 wherein R1, R2, R3 and R4 are selected from the group combinations of: R1 R2 R3 R4 MC4 inhibition at 10 micromolar P1 G1 P1 P7 + P3 GI P1 P7 + P3 G2 P1 P7 + P4 G2 P1 P7 + P4 G2 P2 P7 + P4 G3 P2 P7 + P5 G1 P1 P7 + P5 G2 P1 P7 + P1 A3 P1 P7 + P1 G3 P1 P7 + P1 G3 P2 P7 + P1 G2 P4 P7 + P1 A3 P4 P7 + P1 G3 P4 P7 + P2 GL P1 P7 + P2 G2 P1 P7 + P2 A3 P1 P7 + P2 G2 P2 P7 + P2 A3 P2 P7 + P2 G3 P2 P7 + P2 G3 P4 P7 + P4 G3 P1 P7 + P4 A3 P2 P7 + P5 G3 P1 P7 + P1 A3 P1 P7 + 5 and wherein the groups P, G and A are as described in "Substituents per Example Libraries 1-14" in the specification, WO 2004/032940 PCT/AU2003/001347 37

18. The method of claim 15, wherein the compound is OR4 0 OR1 HO' O" 'NHR2 OR3 wherein R1, R2, R3 and R4 are selected from the group combinations of: R1 R2 R3 R4 P1 G1 P7 P1 P1 G2 P7 P1 P1 G3 P7 P1 P1 G1 P7 P2 P1 A3 P7 P2 P1 G3 P7 P2 P1 G1 P7 P4 P1 G2 P7 P4 P1 A3 P7 P4 P1 G3 P7 P4 P2 G1 P7 P1 P2 G2 P7 P1 P2 A3 P7 P1 P2 G3 P7 P1 P2 G1 P7 P2 P2 G2 P7 P2 P2 A3 P7 P2 P2 G3 P7 P2 P2 GI P7 P4 P2 G2 P7 P4 P2 A3 P7 P4 P2 G3 P7 P4 P3 G3 P7 P1 P3 G1 P7 P2 P3 G3 P7 P4 P4 G1 P7 P1 P4 G2 P7 P1 P4 G3 P7 P1 P4 G1 P7 P2 P4 G2 P7 P2 P4 A3 P7 P2 P4 G3 P7 P2 P4 G1 P7 P4 P4 G2 P7 P4 WO 2004/032940 PCT/AU2003/001347 38 P4 A3 P7 P4 P4 G3 P7 P4 P5 GI P7 P1 P5 G2 P7 P1 P5 A3 P7 P1 P5 G3 P7 P1 P5 G1 P7 P2 P5 G2 P7 P2 P5 A3 P7 P2 P5 G3 P7 P2 P5 G1 P7 P4 PS G2 P7 P4 P5 A3 P7 P4 P5 G3 P7 P4 P1 G1 P7 P6 P4 G2 P7 P6 P6 GI P7 P1 P6 G2 P7 P1 P6 A3 P7 P1 P6 G3 P7 P2 P6 G2 P7 P2 P6 G3 P7 P2 and wherein the groups P, G and A are as described in "Substituents per Example Libraries 1-14" in the specification. 5

19. The method of claim 14, wherein the compound is OR4 O OR1 HO" ' "NHR2 OR3 wherein RI, R2, R3 and R4 are selected from the group combinations of: R1 R2 R3 R4 P1 Gi P7 P1 P1 G2 P7 P1 P1 G2 P7 P2 P1 A3 P7 P2 P2 A3 P7 P1 P2 A3 P7 P2 P2 A3 P7 P4 WO 2004/032940 PCT/AU2003/001347 39 P3 G1 P7 P2 P3 A3 P7 P4 P4 G2 P7 P1 P4 A3 P7 P1 P4 G3 P7 P1 P4 G1 P7 P2 P4 G2 P7 P2 P4 A3 P7 P2 P4 G3 P7 P2 P4 A3 P7 P3 P4 A3 P7 P4 P5 A3 P7 P1 P5 A3 P7 P2 P5 G3 P7 P2 PS A3 P7 P4 P2 A3 P7 P6 P4 A3 P7 P6 P6 A3 P7 P4 and wherein the groups P, G and A are as described in "Substituents per Example Libraries 1-14" in the specification. 5

20. The method of claim 15, wherein the compound is OR4 0 SMe HO"' . INHR2 OR3 wherein R4, R2 and R3 are selected from the group combinations of: R2 R3 R4 G1 P3 P3 A2 P3 P3 G2 P3 P3 G3 P3 P3 G1 P3 P4 G2 P3 P4 A3 P3 P4 G3 P3 P4 WO 2004/032940 PCT/AU2003/001347 40 G1 P3 P1 A2 P3 P1 G2 P3 P1 A3 P3 P1 G3 P3 PI Al P3 P2 Gl P3 P2 A2 P3 P2 G2 P3 P2 A3 P3 P2 G3 P3 P2 G1 P4 P3 A2 P4 P3 G2 P4 P3 G3 P4 P3 G1 P4 P4 A2 P4 P4 G2 P4 P4 G3 P4 P4 Al P4 P1 G1 P4 P1 A2 P4 P1 G2 P4 P1 A3 P4 P1 G3 P4 P1 Al P4 P2 G1 P4 P2 A2 P4 P2 G2 P4 P2 A3 P4 P2 G3 P4 P2 Al P1 P3 G1 P1 P3 A2 P1 P3 G2 P1 P3 A3 P1 P3 G3 P1 P3 Al P1 P4 G1 P1 P4 A2 P1 P4 G2 P1 P4 A3 P1 P4 G3 P1 P4 Al P1 P1 G1 P1 P1 A2 P1 P1 WO 2004/032940 PCT/AU2003/001347 41 G2 P1 P1 A3 P1 P1 Al P1 P2 GI P1 P2 A2 P1 P2 G2 P1 P2 A3 PI P2 G3 P1 P2 Al P2 P3 G1 P2 P3 G2 P2 P3 A3 P2 P3 G3 P2 P3 Al P2 P4 G1 P2 P4 A2 P2 P4 G2 P2 P4 A3 P2 P4 G3 P2 P4 Al P2 P1 G1 P2 P1 A2 P2 P1 G2 P2 P1 A3 P2 P1 G3 P2 P1 Al P2 P2 G1 P2 P2 A2 P2 P2 G2 P2 P2 and wherein the groups P, G and A are as described in "Substituents per Example Libraries 1-14" in the specification. 5

21 The method of claim 14, wherein the compound is OR4 0 SMe HO '"NHR2 6R3 wherein R4, R2 and R3 are selected from the group combinations of: R2 R3 R4 WO 2004/032940 PCT/AU2003/001347 42 Al P3 P3 G1 P3 P3 A2 P3 P3 G2 P3 P3 A3 P3 P3 G3 P3 P3 Al P3 P4 G1 P3 P4 A2 P3 P4 G2 P3 P4 A3 P3 P4 G3 P3 P4 Al P3 P1 G1 P3 P1 A2 P3 P1 G2 P3 P1 A3 P3 P1 G3 P3 P1 Al P3 P2 GI P3 P2 A2 P3 P2 G2 P3 P2 A3 P3 P2 G3 P3 P2 Al P4 P3 G1 P4 P3 A2 P4 P3 G2 P4 P3 A3 P4 P3 G3 P4 P3 Al P4 P4 Gl P4 P4 A2 P4 P4 G2 P4 P4 A3 P4 P4 G3 P4 P4 Al P4 P1 G1 P4 P1 A2 P4 P1 G2 P4 P1 A3 P4 P1 G3 P4 P1 Al P4 P2 G1 P4 P2 A2 P4 P2 G2 P4 P2 WO 2004/032940 PCT/AU2003/001347 43 A3 P4 P2 G3 P4 P2 Al P1 P3 Gl P1 P3 A2 P1 P3 G2 P1 P3 A3 P1 P3 G3 P1 P3 Al P1 P4 G1 P1 P4 A2 Pt P4 G2 Pt P4 A3 P1 P4 G3 P1 P4 Al P1 P1 G1 Pt P1 A2 P1 P1 G2 P1 P1 A3 P1 P1 G3 P1 P1 Al PI P2 G1 P1 P2 A2 P1 P2 G2 P1 P2 A3 P1 P2 G3 P1 P2 Al P2 P3 G1 P2 P3 A2 P2 P3 G2 P2 P3 A3 P2 P3 G3 P2 P3 Al P2 P4 G1 P2 P4 A2 P2 P4 G2 P2 P4 A3 P2 P4 G3 P2 P4 Al P2 P1 G1 P2 P1 A2 P2 P1 G2 P2 P1 A3 P2 P1 G3 P2 P1 Al P2 P2 G1 P2 P2 WO 2004/032940 PCT/AU2003/001347 44 A2 P2 P2 G2 P2 P2 and wherein the groups P, G and A are as described in "Substituents per Example Libraries 1-14" in the specification.

22. The method of claim 15, wherein the compound is 5 OMe O OR1 HO" ' . "'NHR2 OR3 wherein R1, R2 and R3 are selected from the group combinations of: R1 R2 R3 P3 G1 P3 P3 G2 P3 P3 G3 P3 P3 Al P4 P3 G1 P4 P3 A2 P4 P3 G2 P4 P3 A3 P4 P3 G3 P4 P3 Al P1 P3 G1 P1 P3 A2 P1 P3 G2 P1 P3 A3 P1 P3 G3 P1 P3 G1 P2 P3 A2 P2 P3 G2 P2 P3 A3 P2 P3 G3 P2 P4 G1 P3 P4 G2 P3 P4 G3 P3 WO 2004/032940 PCT/AU2003/001347 45 P4 Al P4 P4 GI P4 P4 A2 P4 P4 G2 P4 P4 A3 P4 P4 G3 P4 P4 Al P1 P4 G1 P1 P4 A2 P1 P4 G2 P1 P4 A3 P1 P4 G3 P1 P4 Al P2 P4 G1 P2 P4 A2 P2 P4 G2 P2 P4 A3 P2 P4 G3 P2 P5 GI P3 P5 G2 P3 P5 G3 P3 P5 GI P4 P5 A2 P4 P5 G2 P4 P5 A3 P4 PS G3 P4 P5 Al P1 P5 G1 P1 P5 A2 P1 P5 G2 P1 P5 A3 P1 P5 G3 P1 PS Al P2 P5 G1 P2 P5 A2 P2 PS G2 P2 P5 A3 P2 P5 G3 P2 P2 G1 P3 P2 A2 P3 P2 G2 P3 P2 G1 P4 P2 G2 P4 P2 A3 P4 P2 G3 P4 P2 GI P1 WO 2004/032940 PCT/AU2003/001347 46 P2 A2 P1 P2 G2 P1 P2 A3 P1 P2 G3 P1 P2 Al P2 P2 G1 P2 P2 G2 P2 P2 G3 P2 and wherein the groups P, G and A are as described in "Substituents per Example Libraries 1-14" in the specification. 5

23. The method of claim 14, wherein the compound is OMe O CR1 HO"' - "NHR2 CR3 wherein RI, R2 and R3 are selected from the group combinations of: 10 R1 R2 R3 P3 Al P3 P3 G1 P3 P3 A2 P3 P3 G2 P3 P3 A3 P3 P3 G3 P3 P3 Al P4 P3 G1 P4 P3 A2 P4 P3 G2 P4 P3 A3 P4 P3 G3 P4 P3 Al P1 P3 G1 P1 P3 A2 P1 P3 G2 P1 WO 2004/032940 PCT/AU2003/001347 47 P3 A3 P1 P3 G3 P1 P3 Al P2 P3 GI P2 P3 A2 P2 P3 G2 P2 P3 A3 P2 P3 G3 P2 P4 G1 P3 P4 A2 P3 P4 G2 P3 P4 A3 P3 P4 G3 P3 P4 Al P4 P4 G1 P4 P4 A2 P4 P4 G2 P4 P4 A3 P4 P4 G3 P4 P4 Al P1 P4 G1 P1 P4 A2 P1 P4 G2 P1 P4 A3 P1 P4 G3 P1 P4 Al P2 P4 G1 P2 P4 A2 P2 P4 G2 P2 P4 A3 P2 P4 G3 P2 P5 Al P3 P5 A2 P3 P5 G2 P3 PS A3 P3 P5 G3 P3 PS Al P4 P5 G1 P4 P5 A2 P4 P5 G2 P4 P5 A3 P4 P5 G3 P4 P5 Al P1 P5 GI P1 PS A2 P1 P5 G2 P1 WO 2004/032940 PCT/AU2003/001347 48 P5 A3 P1 P5 G3 P1 P5 Al P2 P5 G1 P2 P5 A2 P2 P5 G2 P2 P5 A3 P2 P5 G3 P2 P2 Al P3 P2 G1 P3 P2 A2 P3 P2 G2 P3 P2 A3 P3 P2 G3 P3 P2 Al P4 P2 G1 P4 P2 A2 P4 P2 G2 P4 P2 A3 P4 P2 G3 P4 P2 Al P1 P2 GI P1 P2 A2 P1 P2 G2 P1 P2 A3 P1 P2 G3 P1 P2 Al P2 P2 G1 P2 P2 A2 P2 P2 G2 P2 P2 A3 P2 P2 G3 P2 and wherein the groups P, G and A are as described in "Substituents per Example Libraries 1-14" in the specification. 5

24. The method of claim 15, wherein the compound is OR3 0 SMe HO" . 'NHR1 wherein R, R2 and R3 are selected from the group combinations of2 wherein RI, R2 and R3 are selected from the group combinations of: WO 2004/032940 PCT/AU2003/001347 49 RI R2 R3 P3 N4 E2 P3 N4 E4 P3 N4 E6 P4 N4 E2 P4 N4 E4 and wherein the groups P, N and E are as described in "Substituents per Example Libraries 1-14" in the specification. 5

25. The method of claim 14, wherein the compound is OR3 0 SMe HO"' . 'NHR1 CR2 wherein R1, R2 and R3 are selected from the group combinations of: R1 R2 R3 P3 N4 E5 P3 N4 E6 P4 N4 El P4 N4 E2 P4 N4 E5 10 and wherein the groups P, N and E are as described in "Substituents per Example Libraries 1-14" in the specification. WO 2004/032940 PCT/AU2003/001347 50

26. The method of claim 15, wherein the compound is OR3 O SMe HO ' r "NHR 1 OR2 wherein RI, R2 and R3 are selected from the group combinations of: R1 R2 R3 E2 N4 P3 E4 N4 P3 E6 N4 P3 E4 N4 P4 E5 N4 P4 E6 N4 P4 5 and wherein the groups P, N and E are as described in "Substituents per Example Libraries 1-14" in the specification.

27. The method of claim 14, wherein the compound is OR3 O SMe HO"' ' "NHR1 10 OR2 wherein RI, R2 and R3 are selected from the group combinations of: RI R2 R3 El N4 P3 E5 N4 P3 E6 N4 P3 El N4 P4 E2 N4 P4 E5 N4 P4 and wherein the groups P, N and E are as described in "Substituents per Example WO 2004/032940 PCT/AU2003/001347 51 Libraries 1-14" in the specification.

28. The method of claim 15, wherein the compound is OR3 O SMe HO"' . "/NHR1 OR2 5 wherein R1, R2 and R3 are selected from the group combinations of: R1 R2 R3 E2 P3 N4 E4 P3 N4 E6 P3 N4 El P4 N4 E6 P4 N4 and wherein the groups E, P and N are as described in "Substituents per Example Libraries 1-14" in the specification. 10

29. The method of claim 14, wherein the compound is OR3 0 SMe HO " - "NHR1 OR2 wherein RI, R2 and R3 are selected from the group combinations of: R1 R2 R3 El P3 N4 E2 P3 N4 E5 P3 N4 E6 P3 N4 El P4 N4 15 WO 2004/032940 PCT/AU2003/001347 52 and wherein the groups E, P and N are as described in "Substituents per Example Libraries 1-14" in the specification.

30. The method of claim 15, wherein the compound is OR3 O SMe HO"' "NHR1 OR2 5 wherein R1, R2 and R3 are selected from the group combinations of: R1 R2 R3 El P3 N4 E2 P3 N4 E3 P3 N4 E5 P3 N4 El P4 N4 E2 P4 N4 E3 P4 N4 E5 P4 N4 and wherein the groups E, P and N are as described in "Substituents per Example Libraries 1-14" in the specification. 10

31. The method of claim 14, wherein the compound is OR3 O SMe HO"' "NHR1 OR2 wherein RI, R2 and R3 are selected from the group combinations of: R1 R2 R3 E5 P3 N4 E6 P3 N4 El P4 N4 E2 P4 N4 E5 P4 N4 WO 2004/032940 PCT/AU2003/001347 53 and wherein the groups E, P and N are as described in "Substituents per Example Libraries 1-14" in the specification.

32. The method of claim 15, wherein the compound is OR3 O ORI HO" . "NHR2 5 OMe wherein R1, R2 and R3 are selected from the group combinations of: R1 R2 R3 P4 E8 P2 P4 E9 P2 P4 ElO P2 P4 G1 P2 P4 E8 P2 P4 E9 P2 P4 Ell P2 P4 G1 P2 and wherein the groups P, G and E are as described in "Substituents per Example Libraries 1-14" in the specification. 10

33. The method of claim 15, wherein the compound is OR4 O OR1 HO ' " ' "/NHR2 OR3 wherein RI, R2, R3 and R4 are selected from the group combinations of: R1 R2 R3 R4 P2 A2 P4 P2 P2 A2 P4 P2 P2 A2 P4 P3 P2 A2 P4 P3 P2 A2 P4 P4 WO 2004/032940 PCT/AU2003/001347 54 P2 A2 P4 P4 P2 A2 P2 P2 P2 A2 P2 P2 P2 A2 P2 P3 P2 A2 P2 P4 P2 A2 P2 P4 P2 A2 P3 P2 P2 A2 P3 P3 P2 A2 P3 P3 P2 A2 P3 P4 P2 A3 P4 P2 P2 A3 P4 P2 P2 A3 P4 P4 P2 A3 P4 P4 P2 A3 P2 P2 P2 A3 P2 P4 P2 A3 P2 P4 P2 A3 P3 P2 P2 A3 P3 P2 P2 A3 P3 P3 P2 A3 P3 P4 P4 A2 P4 P3 P4 A2 P4 P4 P4 A2 P2 P2 P4 A2 P2 P3 P4 A2 P2 P3 P4 A2 P2 P4 P4 A2 P2 P4 P4 A2 P3 P2 P4 A2 P3 P3 P4 A2 P3 P4 P4 A3 P4 P2 P4 A3 P4 P3 P4 A3 P4 P4 P4 A3 P2 P2 P4 A3 P2 P2 P4 A3 P2 P3 P4 A3 P2 P3 P4 A3 P2 P4 P4 A3 P2 P4 P4 A3 P3 P2 P4 A3 P3 P4 and wherein the groups P, and A are as described in "Substituents per Example Libraries 1-14" in the specification. WO 2004/032940 PCT/AU2003/001347 55

34. The method of claim 15, wherein the compound is OR4 O0 ORI HO" - "NHR2 OR3 wherein RI, R2, R3 and R4 are selected from the group combinations of: R1 R2 R3 R4 P3 A2 P4 P2 P3 A2 P4 P3 P3 A2 P4 P4 P3 A2 P2 P2 P3 A2 P2 P3 P3 A2 P2 P4 P3 A2 P3 P2 P3 A2 P3 P3 P3 A2 P3 P4 P3 A3 P4 P2 P3 A3 P4 P4 P3 A3 P2 P2 P3 A3 P2 P3 P3 A3 P2 P4 P3 A3 P3 P2 P3 A3 P3 P4 P2 A2 P4 P2 P2 A2 P4 P3 P2 A2 P4 P4 P2 A2 P2 P2 P2 A2 P2 P3 P2 A2 P2 P4 P2 A2 P3 P2 P2 A2 P3 P3 P2 A2 P3 P4 P2 A3 P4 P2 P2 A3 P4 P3 P2 A3 P4 P4 P2 A3 P2 P2 P2 A3 P2 P3 P2 A3 P2 P4 P2 A3 P3 P2 P2 A3 P3 P3 P2 A3 P3 P4 WO 2004/032940 PCT/AU2003/001347 56 and wherein the groups P, and A are as described in "Substituents per Example Libraries 1-14" in the specification.

35. The method of claim 15, wherein the compound is OR4 0 ORI H 0' ".NHR2 5 OR3 wherein R1, R2, R3 and R4 are selected from the group combinations of: R1 R2 R3 R4 P3 G1 P4 P2 P3 G1 P4 P2 P3 G1 P4 P3 P3 G1 P4 P3 P3 G1 P4 P4 P3 G1 P2 P2 P3 G1 P2 P2 P3 G1 P2 P3 P3 G1 P2 P4 P3 G1 P2 P4 P3 G1 P1 P2 P3 G1 P1 P3 P3 G1 P1 P3 P3 G1 P1 P4 P3 G1 P1 P4 P3 G2 P4 P2 P3 G2 P4 P2 P3 G2 P4 P3 P3 G2 P4 P3 P3 G2 P4 P4 P3 G2 P4 P4 P3 G2 P2 P2 P3 G2 P2 P3 P3 G2 P2 P3 P3 G2 P2 P4 P3 G2 P2 P4 P3 G2 PI P2 P3 G2 P1 P2 P3 G2 P1 P3 P3 G2 P1 P4 P3 G2 P1 P4 WO 2004/032940 PCT/AU2003/001347 56 and wherein the groups P, and A are as described in "Substituents per Example Libraries 1-14" in the specification. 35. The method of claim 15, wherein the compound is OR4 0 OR1 HO "NHR2 5 OR3 wherein R1, R2, R3 and R4 are selected from the group combinations of: R1 R2 R3 R4 P3 GI P4 P2 P3 GI P4 P2 P3 GI P4 P3 P3 G1 P4 P3 P3 G1 P4 P4 P3 G1 P2 P2 P3 GI P2 P2 P3 G1 P2 P3 P3 GI P2 P4 P3 G1 P2 P4 P3 G1 P1 P2 P3 G1 P1 P3 P3 GI P1 P3 P3 G1 P1 P4 P3 G1 P1 P4 P3 G2 P4 P2 P3 G2 P4 P2 P3 G2 P4 P3 P3 G2 P4 P3 P3 G2 P4 P4 P3 G2 P4 P4 P3 G2 P2 P2 P3 G2 P2 P3 P3 G2 P2 P3 P3 G2 P2 P4 P3 G2 P2 P4 P3 G2 P1 P2 P3 G2 P1 P2 P3 G2 P1 P3 P3 G2 P1 P4 P3 G2 P1 P4 WO 2004/032940 PCT/AU2003/001347 57 P3 G2 IP1 P5 and wherein the groups P, and G are as described in "Substituents per Example Libraries 1-14" in the specification. 5

36. The method of claim 15, wherein the compound is OR4 O OR1 HO" . "NHR2 6R3 wherein R1, R2, R3 and R4 are selected from the group combinations of: R1 R2 R3 R4 P1 G1 P4 P2 P1 G1 P4 P3 P1 G1 P4 P4 P1 G1 P2 P3 P1 G1 P2 P4 P1 G1 P1 P3 P1 G1 P1 P4 P1 G2 P4 P2 P1 G2 P4 P3 P1 G2 P4 P4 P1 G2 P2 P2 P1 G2 P2 P3 P1 G2 P2 P4 P1 G2 P1 P2 P1 G2 P1 P3 P1 G2 P1 P4 P4 G1 P4 P2 P4 G1 P4 P3 P4 G1 P4 P4 P4 G1 P2 P2 P4 G1 P2 P3 P4 G1 P2 P4 P4 G1 P1 P2 P4 G1 P1 P3 P4 G1 P1 P4 P4 G2 P4 P2 P4 G2 P4 P3 P4 G2 P4 P4 P4 G2 P2 P2 WO 2004/032940 PCT/AU2003/001347 58 P4 G2 P2 P3 P4 G2 P2 P4 P4 G2 P1 P2 P4 G2 P1 P3 P4 G2 P1 P4 P1 G3 P3 P3 and wherein the groups P, and G are as described in "Substituents per Example Libraries 1-14" in the specification. 5

37. The method of claim 15, wherein the compound is OH O NHRI HO" V NHR2 OR3 wherein R1, R2 and R3 are selected from the group combinations of: R1 R2 R3 A2 G4 P3 A2 G4 P12 A2 G4 P13 A2 G4 P1 A2 El P3 A2 El P4 A2 El P12 A2 El P13 Al El P3 Al El P4 and wherein the groups P, A and E are as described in "Substituents per Example 10 Libraries 1-14" in the specification.

38. A pharmaceutical formulation comprising a compound as claimed in claim 1 or a pharmaceutically acceptable salt thereof, together with one or more pharmaceutically acceptable carriers, diluents or excipients. 15