Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
  • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
  • C07D471/04—Ortho-condensed systems
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/33—Heterocyclic compounds
  • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
  • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
  • A61K31/4353—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems
  • A61K31/437—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a five-membered ring having nitrogen as a ring hetero atom, e.g. indolizine, beta-carboline
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/66—Phosphorus compounds
  • A61K31/662—Phosphorus acids or esters thereof having P—C bonds, e.g. foscarnet, trichlorfon
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/66—Phosphorus compounds
  • A61K31/675—Phosphorus compounds having nitrogen as a ring hetero atom, e.g. pyridoxal phosphate
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
  • A61P1/04—Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
  • A61P1/12—Antidiarrhoeals
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P3/00—Drugs for disorders of the metabolism
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
  • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
  • C07F9/02—Phosphorus compounds
  • C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
  • C07F9/6561—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing systems of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring or ring system, with or without other non-condensed hetero rings

Definitions

• Adenosine 5 '-monophosphate-activated protein kinase is a serine/threonine kinase and is evolutionarily conserved from yeast to mammals. AMPK acts as an energy sensor and is activated by upstream enzymes when the cellular ratio of adenosine 5 '-monophosphate (AMP) to adenosine triphosphate (ATP) is elevated due to nutrient deprivation. Activated AMPK phosphorylates downstream substrates to promote catabolism and impede anabolism, leading to ATP production and energy restoration.
• AMP adenosine 5 '-monophosphate-activated protein kinase
• ATP adenosine triphosphate
• AMPK activity can be altered due to numerous physiological factors, such as hormones, cytokines and dietary nutrients, as well as pathological conditions such as obesity, chronic inflammation and type 2 diabetes. AMPK activation can lead to lower hepatic glucose production and plasma glucose levels. Thus, AMPK is an attractive target to treat various metabolic diseases.
• AMPK has beneficial effects for gut health, such as enhancing intestinal absorption, improving barrier function, suppressing colorectal carcinogenesis, and reducing intestinal inflammation and metabolic-related disease, and is important for the maintenance of intestinal homeostasis.
• AMPK activation enhances paracellular junctions, nutrient transporters, autophagy and apoptosis, and suppresses inflammation and carcinogenesis in the intestine.
• AMPK is associated with the maintenance of tight junctions in colonic epithelium and controls the progression of colitis.
• adenosine 5 '-monophosphate-activated protein kinase (5' AMP-activated protein kinase, AMPK) activators useful for the treatment of conditions or disorders associated with AMPK.
• the condition or disorder is associated with the gut-brain axis.
• the condition or disorder is associated with systemic infection and inflammation from having a leaky gut barrier.
• the AMPK activators are gut-restricted or selectively modulate AMPK located in the gut.
• the condition or disorder is selected from the group consisting of: central nervous system (CNS) disorders including mood disorders, anxiety, depression, affective disorders, schizophrenia, malaise, cognition disorders, addiction, autism, epilepsy, neurodegenerative disorders, Alzheimer’s disease, and Parkinson’s disease, Lewy Body dementia, episodic cluster headache, migraine, pain; metabolic conditions including diabetes and its complications such as chronic kidney disease/diabetic nephropathy, diabetic retinopathy, diabetic neuropathy, cardiovascular disease, metabolic syndrome, obesity, dyslipidemia, and nonalcoholic steatohepatitis (NASH); eating and nutritional disorders including hyperphagia, cachexia, anorexia nervosa, short bowel syndrome, intestinal failure, intestinal insufficiency and other eating disorders; inflammatory disorders and autoimmune diseases such as inflammatory bowel disease, ulcerative colitis, Crohn’s disease, checkpoint inhibitor-induced colitis, psoriasis, celiac disease and enteritis, including chemotherapy-induced enteritis or radiation-induced enter
• CNS
• R 1 is hydrogen or C1-C4 alkyl
• each R 2 is independently halogen, -CN, C 1 -C 4 alkyl, or C 1 -C 4 fluoroalkyl
• n is 0-2;
• L 1 is -(CR 3 R 4 )-(CR 5 R 6 )m-, C3-C6 cycloalkylene, 3- to 6-membered heterocycloalkylene, phenylene, or monocyclic heteroarylene;
• R 3 and R 4 are each independently hydrogen, C 1 -C 4 alkyl, or C 1 -C 4 fluoroalkyl; each R 5 and R 6 is independently hydrogen, halogen, -CN, C 1 -C 4 alkyl, or C 1 -C 4 fluoroalkyl; m is 0-2;
• G is -C(0)OR 7 , -P(0)(R 8 )0R 7 , -P(0)(0R 7 ) 2 , or -S(0) 2 0R 7 ; each R 7 is independently hydrogen or C1-C4 alkyl;
• R 8 is Ci-C 4 alkyl
• R A is a 6,5-fused bicyclic heteroaryl or a 6,6-fused bicyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 10 groups; or R A is -L A -A; L A is -CoC-, or , wherein each pi, p2, and p3 is independently 1 or 2; or L A is phenylene or monocyclic heteroarylene, which is unsubstituted or substituted with 1, 2, or 3 R 11 groups;
• R 1 is hydrogen or methyl; and each R 2 is independently -F, -Cl, -CN, methyl, ethyl, isopropyl, or -CF3.
• R 1 is hydrogen;
• R 2 is -F, -Cl, or -CN; and
• n is 1.
• L 1 is -(CR 3 R 4 )-(CR 5 R 6 ) m- ;
• R 3 and R 4 are each independently hydrogen, methyl, or -CF3;
• each R 5 and R 6 is independently hydrogen, - F, -CN, methyl, or -CF3;
• each R 7 is independently hydrogen, methyl, or ethyl; and
• R 8 is methyl.
• L 1 is -(CR 3 R 4 )-(CR 5 R 6 ) m- ; R 3 and R 4 are each independently hydrogen or methyl; m is 0; and G is -C(0)0H, -P(0)(Me)0H, -P(0)(0Et)(0H), -P(0)(0H) 2 , or - S(0) 2 0H.
• L 1 is -CH2-, -CHMe-, or -GVfe-; and G is -C(0)0H.
• the compound of Formula (I), or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is a compound of Formula (II):
• R 20 is hydrogen or C1-C6 alkyl.
• R A is -L A -A.
• L A is unsubstituted phenylene.
• the compound of Formula (I) or (II), or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is a compound of Formula (III):
• Formula (III) or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof.
• A is C3-C8 cycloalkyl or C6-C10 aryl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is phenyl, which is unsubstituted or substituted with a -OH group.
• the compound of Formula (I), (II), or (III), or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is a compound of Formula (IV):
• Formula (IV) or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof.
• A is 3- to 8- membered heterocycloalkyl or 5- to 10-membered heteroaryl, which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• each R 13 is independently C1-C6 alkyl, C1-C6 fluoroalkyl, C3-C6 cycloalkyl, or 3- to 6-membered heterocycloalkyl; and each R 14 is independently hydrogen, C1-C6 alkyl, C1-C6 fluoroalkyl, C3-C6 cycloalkyl, or 3- to 6-membered heterocycloalkyl; or two R 14 on the same nitrogen atom are taken together with the nitrogen to which they are attached to form a 3- to 6-membered N- heterocycloalkyl.
• a compound of Formula (III) is a compound of Formula (III):
• R 2 is independently halogen, -CN, C 1 -C 4 alkyl, or C 1 -C 4 fluoroalkyl;
• R 3 and R 4 are each independently hydrogen, C 1 -C 4 alkyl, or C 1 -C 4 fluoroalkyl;
• G is -C(0)0R 7 , -P(0)(R 8 )0R 7 , -P(0)(0R 7 ) 2 , or -S(0) 2 0R 7 ; each R 7 is independently hydrogen or C1-C4 alkyl;
• R 8 is C1-C4 alkyl
• each R 2 is independently -F, -Cl, - CN, methyl, ethyl, isopropyl, or -CF3;
• R 3 and R 4 are each independently hydrogen, methyl, or - CF3;
• each R 7 is independently hydrogen, methyl, or ethyl; and
• R 8 is methyl.
• R 2 is -F, -Cl, or -CN; R 3 and R 4 are each independently hydrogen or methyl; and G is -C(0)0H, -P(0)(Me)0H, -P(0)(0Et)(0H), -P(0)(0H) 2 , or -S(0) 2 0H.
• L 1 is -CH 2- , -CHMe-, or -CMe 2- ; and G is -C(0)0H.
• A is C6-C10 aryl which is substituted with 1, 2, or 3 R 12 groups.
• A is phenyl which is substituted with 1, 2, or 3 R 12 groups.
• each R 12 is independently -F, -Cl, -Br, -CN, -OH, -OMe, - NR !
• A is phenyl which is substituted with a -OH group and is optionally substituted with one other group selected from -CH 2 CH 2 C(CH 3 ) 3 and triazolyl.
• the compound of Formula (III) is a compound of Formula
• each R 2 is independently -F, -Cl, -CN, methyl, ethyl, isopropyl, or -CF 3 ;
• R 3 and R 4 are each independently hydrogen, methyl, or -CF 3 ;
• each R 7 is independently hydrogen, methyl, or ethyl; and
• R 8 is methyl.
• R 2 is -F, -Cl, or -CN; R 3 and R 4 are each independently hydrogen or methyl; and G is -C(0)OH, -P(0)(Me)OH, - P(0)(OEt)(OH), -P(0)(OH) 2 , or -S(0) 2 OH.
• L 1 is -CH 2- , -CHMe- or -CMe 2- ; and G is -C(0)OH.
• A is 3- to 6-membered heterocycloalkyl, which is substituted with 1, 2, or 3 R 12 groups.
• R 2 is -
• compositions comprising a compound disclosed herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof, and at least one pharmaceutically acceptable excipient.
• AMPK adenosine 5'- monophosphate-activated protein kinase
• the method comprising administering to the subject a therapeutically effective amount of a compound disclosed herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof.
• the condition or disorder involves the gut-brain axis.
• the condition or disorder is a nutritional disorder.
• the condition or disorder is short bowel syndrome, intestinal failure, or intestinal insufficiency.
• the condition or disorder is associated with systemic infection and inflammation from having a leaky gut barrier.
• the condition or disorder is metabolic syndrome, obesity, type 2 diabetes, coronary artery disease, fatty liver, nonalcoholic steatohepatitis (NASH), cirrhosis, hepatic encephalopathy, fibrotic disorders including scleroderma, inflammatory bowel disease including Crohn’s disease, ulcerative colitis, and checkpoint inhibitor-induced colitis, psoriasis, celiac disease, necrotizing enterocolitis, gastrointestinal injury resulting from toxic insults such as radiation or chemotherapy, environmental enteric dysfunction, allergy including food allergy, celiac sprue, and childhood allergy, graft vs.
• metabolic syndrome obesity, type 2 diabetes, coronary artery disease, fatty liver, nonalcoholic steatohepatitis (NASH), cirrhosis, hepatic encephalopathy, fibrotic disorders including scleroderma, inflammatory bowel disease including Crohn’s disease, ulcerative colitis, and checkpoint inhibitor-induced colitis, psoriasis, cel
• irritable bowel syndrome spontaneous bacterial peritonitis, ischemic colitis, sclerosing cholangitis, Alzheimer’s disease, Parkinson’s disease, cancer including colorectal cancer, depression, autism, or a combination thereof.
• the toxic insult is from radiation, chemotherapy, or a combination thereof.
• the toxic insult is radiation-induced.
• the toxic insult is chemotherapy-induced.
• a compound disclosed herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof for the treatment of an adenosine 5 '-monophosphate-activated protein kinase (AMPK) associated condition or disorder in a subject in need thereof.
• AMPK adenosine 5 '-monophosphate-activated protein kinase
• the condition or disorder involves the gut-brain axis.
• the condition or disorder is a nutritional disorder.
• the condition or disorder is short bowel syndrome, intestinal failure, or intestinal insufficiency.
• the condition or disorder is associated with systemic infection and inflammation from having a leaky gut barrier.
• the condition or disorder is metabolic syndrome, obesity, type 2 diabetes, coronary artery disease, fatty liver, nonalcoholic steatohepatitis (NASH), cirrhosis, hepatic encephalopathy, fibrotic disorders including scleroderma, inflammatory bowel disease including Crohn’s disease, ulcerative colitis, and checkpoint inhibitor-induced colitis, psoriasis, celiac disease, necrotizing enterocolitis, gastrointestinal injury resulting from toxic insults such as radiation or chemotherapy, environmental enteric dysfunction, allergy including food allergy, celiac sprue, and childhood allergy, graft vs.
• metabolic syndrome obesity, type 2 diabetes, coronary artery disease, fatty liver, nonalcoholic steatohepatitis (NASH), cirrhosis, hepatic encephalopathy, fibrotic disorders including scleroderma, inflammatory bowel disease including Crohn’s disease, ulcerative colitis, and checkpoint inhibitor-induced colitis, psoriasis, cel
• irritable bowel syndrome spontaneous bacterial peritonitis, ischemic colitis, sclerosing cholangitis, Alzheimer’s disease, Parkinson’s disease, cancer including colorectal cancer, depression, autism, or a combination thereof.
• a compound disclosed herein or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof, for the treatment of gastrointestinal injury resulting from toxic insult in a subject in need thereof.
• the toxic insult is from radiation, chemotherapy, or a combination thereof.
• the toxic insult is radiation-induced. In some embodiments, the toxic insult is chemotherapy-induced.
• a compound disclosed herein or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof, for the preparation of a medicament for the treatment of the diseases disclosed herein.
• AMPK activators useful for the treatment of conditions or disorders involving the gut-brain axis.
• the AMPK activators are gut-restricted compounds.
• the AMPK activators are agonists, super agonists, full agonists, or partial agonists.
• Compounds disclosed herein directly activate AMPK in the intestine without systemic engagement.
• the preferred compounds are more potent, efficacious at lower doses, and have decreased systemic exposure compared to other previously-known AMPK activators.
• Ci-C x includes C1-C2, C1-C3 . . . Ci-C x.
• a group designated as “C1-C4” indicates that there are one to four carbon atoms in the moiety, i.e., groups containing 1 carbon atom, 2 carbon atoms, 3 carbon atoms or 4 carbon atoms.
• C1-C4 alkyl indicates that there are one to four carbon atoms in the alkyl group, i.e., the alkyl group is selected from among methyl, ethyl, propyl, Ao-propyl, «-butyl, iso butyl, sec-butyl, and /-butyl.
• Alkyl refers to an optionally substituted straight-chain, or optionally substituted branched-chain saturated hydrocarbon monoradical having from one to about ten carbon atoms, or more preferably, from one to six carbon atoms, wherein an sp 3 -hybridized carbon of the alkyl residue is attached to the rest of the molecule by a single bond.
• Examples include, but are not limited to, methyl, ethyl, n-propyl, isopropyl, 2-methyl- 1 -propyl, 2-methyl-2-propyl, 2-methyl- 1 -butyl, 3 -methyl- 1 -butyl, 2-methyl-3 -butyl, 2,2-dimethyl- 1 -propyl, 2-methyl- 1 -pentyl, 3- m ethyl- 1 -pentyl, 4-methyl- 1 -pentyl, 2-methyl-2-pentyl, 3-methyl-2-pentyl, 4-methyl-2-pentyl, 2,2-dimethyl- 1 -butyl, 3,3-dimethyl-l-butyl, 2-ethyl- 1 -butyl, n-butyl, isobutyl, sec-butyl, t-butyl, n-pentyl, isopentyl, neopentyl, tert-amyl and
• the alkyl is a C1-C10 alkyl, a C1-C9 alkyl, a Ci-C 8 alkyl, a C1-C7 alkyl, a Ci-C 6 alkyl, a C1-C5 alkyl, a C1-C4 alkyl, a C1-C3 alkyl, a C1-C2 alkyl, or a Ci alkyl.
• an alkyl group is optionally substituted as described below by one or more of the following substituents: halo, cyano, nitro, oxo, thioxo, imino, oximo, trimethylsilanyl, -OR a , - SR a , -0C(0)R a , -0C(0)-0R f , -N(R a ) 2 , -N + (R a ) 3 , -C(0)R a , -C(0)0R a , -C(0)N(R a ) 2 , - N(R a )C(0)0R f , -0C(0)-N(R a ) 2 , -N(R a )C(0)R a , -N(R a )S(0) t R f (where t is 1 or 2), -S(0) t 0R a (where t is 1 or 2), -S
• Alkenyl refers to an optionally substituted straight-chain, or optionally substituted branched-chain hydrocarbon monoradical having one or more carbon-carbon double-bonds and having from two to about ten carbon atoms, more preferably two to about six carbon atoms, wherein an sp 2 -hybridized carbon or an sp 3 -hybridized carbon of the alkenyl residue is attached to the rest of the molecule by a single bond.
• the group may be in either the cis or trans conformation about the double bond(s), and should be understood to include both isomers.
• a numerical range such as “C 2 -C 6 alkenyl” means that the alkenyl group may consist of 2 carbon atoms, 3 carbon atoms, 4 carbon atoms, 5 carbon atoms or 6 carbon atoms, although the present definition also covers the occurrence of the term “alkenyl” where no numerical range is designated.
• the alkenyl is a C 2 -Cio alkenyl, a C 2 -C 9 alkenyl, a C 2 -Cs alkenyl, a C 2 -C 7 alkenyl, a C 2 -C 6 alkenyl, a C 2 -Cs alkenyl, a C 2 -C4 alkenyl, a C 2 -C 3 alkenyl, or a C 2 alkenyl.
• an alkenyl group is optionally substituted as described below, for example, with oxo, halogen, amino, nitrile, nitro, hydroxyl, haloalkyl, alkoxy, aryl, cycloalkyl, heterocycloalkyl, heteroaryl, and the like.
• an alkenyl group is optionally substituted as described below by one or more of the following substituents: halo, cyano, nitro, oxo, thioxo, imino, oximo, trimethylsilanyl, -OR a , -SR a , -0C(0)-R f , -0C(0)-0R f , -N(R a ) 2 , -N + (R a ) 3 , - C(0)R a , -C(0)0R a , -C(0)N(R a ) 2 , -N(R a )C(0)0R f , -0C(0)-N(R a ) 2 , -N(R a )C(0)R f , - N(R a )S(0) t R f (where t is 1 or 2), -S(0) t OR a (where t is 1 or 2), -S(0)
• Alkynyl refers to an optionally substituted straight-chain or optionally substituted branched-chain hydrocarbon monoradical having one or more carbon-carbon triple-bonds and having from two to about ten carbon atoms, more preferably from two to about six carbon atoms, wherein an sp-hybridized carbon or an sp 3 -hybridized carbon of the alkynyl residue is attached to the rest of the molecule by a single bond. Examples include, but are not limited to ethynyl, 2-propynyl, 2-butynyl, 1,3-butadiynyl and the like.
• C2-C6 alkynyl means that the alkynyl group may consist of 2 carbon atoms, 3 carbon atoms, 4 carbon atoms, 5 carbon atoms or 6 carbon atoms, although the present definition also covers the occurrence of the term “alkynyl” where no numerical range is designated.
• the alkynyl is a C2-C10 alkynyl, a C2-C9 alkynyl, a C2-C8 alkynyl, a C2-C7 alkynyl, a C2-C6 alkynyl, a C2-C5 alkynyl, a C2-C4 alkynyl, a C2-C3 alkynyl, or a C2 alkynyl.
• an alkynyl group is optionally substituted as described below by one or more of the following substituents: halo, cyano, nitro, oxo, thioxo, imino, oximo, trimethylsilanyl, -OR a , -SR a , -0C(0)R a , -0C(0)-0R f , - N(R a ) 2 , -N + (R a ) 3 , -C(0)R a , -C(0)0R a , -C(0)N(R a ) 2 , -N(R a )C(0)0R f , -0C(0)-N(R a ) 2 , - N(R a )C(0)R f , -N(R a )S(0) t R f (where t is 1 or 2), -S(0) t OR a (where t is 1 or 2), -S(0)
• Alkylene or “alkylene chain” refers to a straight or branched divalent hydrocarbon chain linking the rest of the molecule to a radical group, consisting solely of carbon and hydrogen, containing no unsaturation and having from one to twelve carbon atoms, for example, methylene, ethylene, propylene, «-butylene, and the like.
• the alkylene chain is attached to the rest of the molecule through a single bond and to the radical group through a single bond.
• the points of attachment of the alkylene chain to the rest of the molecule and to the radical group are through one carbon in the alkylene chain or through any two carbons within the chain.
• an alkylene group is optionally substituted as described below by one or more of the following substituents: halo, cyano, nitro, oxo, thioxo, imino, oximo, trimethylsilanyl, -OR a , -SR a , -0C(0)R a , -0C(0)-0R f , -N(R a ) 2 , -N + (R a ) 3 , -C(0)R a , -C(0)0R a , -C(0)N(R a ) 2 , -N(R a )C(0)0R f , -0C(0)-N(R a ) 2 , -N(R a )C(0)R f , -N(R a )S(0) t R f (where t is 1 or 2), -S(0) t OR a (where t is 1 or 2), -S(0) t
• alkenylene or “alkenylene chain” refers to a straight or branched divalent hydrocarbon chain linking the rest of the molecule to a radical group, consisting solely of carbon and hydrogen, containing at least one carbon-carbon double bond, and having from two to twelve carbon atoms.
• the alkenylene chain is attached to the rest of the molecule through a single bond and to the radical group through a single bond.
• an alkenylene group is optionally substituted as described below by one or more of the following substituents: halo, cyano, nitro, oxo, thioxo, imino, oximo, trimethylsilanyl, -OR a , -SR a , -0C(0)-R f , -0C(0)-0R f , -N(R a ) 2 , -N + (R a ) 3 , -C(0)R a , -C(0)0R a , - C(0)N(R a ) 2 , -N(R a )C(0)0R f , -0C(0)-N(R a ) 2 , -N(R a )C(0)R f , -N(R a )S(0) t R f (where t is 1 or 2), - S(0) t OR a (where t is 1 or 2), - S(0)
• Alkynylene or “alkynylene chain” refers to a straight or branched divalent hydrocarbon chain linking the rest of the molecule to a radical group, consisting solely of carbon and hydrogen, containing at least one carbon-carbon triple bond, and having from two to twelve carbon atoms.
• the alkynylene chain is attached to the rest of the molecule through a single bond and to the radical group through a single bond.
• an alkynylene group is optionally substituted as described below by one or more of the following substituents: halo, cyano, nitro, oxo, thioxo, imino, oximo, trimethylsilanyl, - OR a , -SR a , -0C(0)R a , -0C(0)-0R f , -N(R a ) 2 , -N + (R a ) 3 , -C(0)R a , -C(0)0R a , -C(0)N(R a ) 2 , - N(R a )C(0)0R f , -0C(0)-N(R a ) 2 , -N(R a )C(0)R f , -N(R a )S(0) t R f (where t is 1 or 2), -S(0) t 0R a (where t is 1 or 2), -
• Alkoxy or “alkoxyl” refers to a radical bonded through an oxygen atom of the formula -O-alkyl, where alkyl is an alkyl chain as defined above.
• Aryl refers to a radical derived from an aromatic monocyclic or multicyclic hydrocarbon ring system by removing a hydrogen atom from a ring carbon atom.
• the aromatic monocyclic or multicyclic hydrocarbon ring system contains only hydrogen and carbon from 6 to 18 carbon atoms, where at least one of the rings in the ring system is fully unsaturated, i.e., it contains a cyclic, delocalized (4n+2) p-electron system in accordance with the Hiickel theory.
• the ring system from which aryl groups are derived include, but are not limited to, groups such as benzene, fluorene, indane, indene, tetralin and naphthalene.
• the aryl is a C6-C10 aryl. In some embodiments, the aryl is a phenyl.
• the term “aryl” or the prefix “ar-“ is meant to include aryl radicals optionally substituted as described below by one or more substituents independently selected from alkyl, alkenyl, alkynyl, halo, haloalkyl, cyano, nitro, aryl, aralkyl, aralkenyl, aralkynyl, cycloalkyl, heterocycloalkyl, heteroaryl, heteroarylalkyl, -R b -OR a , -R b -SR a , -R b -0C(0)-R a , -R b -0C(0)-0R f , -R b -0C(0)-N(R a )
• arylene refers to a divalent radical derived from an “aryl” group as described above linking the rest of the molecule to a radical group.
• the arylene is attached to the rest of the molecule through a single bond and to the radical group through a single bond.
• the arylene is a phenylene.
• an arylene group is optionally substituted as described above for an aryl group.
• Cycloalkyl refers to a stable, partially or fully saturated, monocyclic or polycyclic carbocyclic ring, which may include fused (when fused with an aryl or a heteroaryl ring, the cycloalkyl is bonded through a non-aromatic ring atom) or bridged ring systems.
• Representative cycloalkyls include, but are not limited to, cycloalkyls having from three to fifteen carbon atoms (C3-C15 cycloalkyl), from three to ten carbon atoms (C3-C10 cycloalkyl), from three to eight carbon atoms (C3-C8 cycloalkyl), from three to six carbon atoms (C3-C6 cycloalkyl), from three to five carbon atoms (C3-C5 cycloalkyl), or three to four carbon atoms (C3-C4 cycloalkyl).
• the cycloalkyl is a 3- to 6-membered cycloalkyl.
• the cycloalkyl is a 5- to 6-membered cycloalkyl.
• Monocyclic cycloalkyls include, for example, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, and cyclooctyl.
• Polycyclic cycloalkyls or carbocycles include, for example, adamantyl, norbornyl, decalinyl, bicyclo[l.l.l]pentyl, bicyclo[3.3.0]octane, bicyclo[4.3.0]nonane, cA-decalin, trans- decalin, bicyclo[2.1.1]hexane, bicyclo[2.2.1]heptane, bicyclo[2.2.2]octane, bicyclo[3.2.2]nonane, and bicyclo[3.3.2]decane, 7,7-dimethyl-bicyclo[2.2.1]heptane, and the like.
• cycloalkyl is meant to include cycloalkyl radicals optionally substituted as described below by one or more substituents independently selected from alkyl, alkenyl, alkynyl, halo, haloalkyl, cyano, nitro, aryl, aralkyl, aralkenyl, aralkynyl, cycloalkyl, heterocycloalkyl, heteroaryl, heteroarylalkyl, -R b -OR a , -R b -SR a , -R b -OC(0)-R a , -R b - 0C(0)-0R f , -R b -0C(0)-N(R a ) 2 , -R b -N(R a ) 2 , -R b -N + (R a ) 3 , -R b -C(0)R a
• a “cycloalkylene” refers to a divalent radical derived from a “cycloalkyl” group as described above linking the rest of the molecule to a radical group.
• the cycloalkylene is attached to the rest of the molecule through a single bond and to the radical group through a single bond.
• a cycloalkylene group is optionally substituted as described above for a cycloalkyl group.
• Halo or “halogen” refers to bromo, chloro, fluoro or iodo. In some embodiments, halogen is fluoro or chloro. In some embodiments, halogen is fluoro.
• Haloalkyl refers to an alkyl radical, as defined above, that is substituted by one or more halo radicals, as defined above, e.g., trifluoromethyl, difluoromethyl, fluoromethyl, tri chi orom ethyl, 2,2,2-trifluoroethyl, 1,2-difluoroethyl, 3-bromo-2-fluoropropyl, 1,2-dibromoethyl, and the like.
• Fluoroalkyl refers to an alkyl radical, as defined above, that is substituted by one or more fluoro radicals, as defined above, for example, trifluoromethyl, difluoromethyl, fluoromethyl, 2,2,2-trifluoroethyl, l-fluoromethyl-2-fluoroethyl, and the like.
• Haloalkoxy or “haloalkoxyl” refers to an alkoxyl radical, as defined above, that is substituted by one or more halo radicals, as defined above.
• Fluoroalkoxy or “fluoroalkoxyl” refers to an alkoxy radical, as defined above, that is substituted by one or more fluoro radicals, as defined above, for example, trifluoromethoxy, difluoromethoxy, fluoromethoxy, and the like.
• Heterocycloalkyl refers to a stable 3- to 24-membered partially or fully saturated ring radical comprising 2 to 23 carbon atoms and from one to 8 heteroatoms selected from the group consisting of nitrogen, oxygen, and sulfur.
• the heterocycloalkyl radical may be a monocyclic, bicyclic, tricyclic or tetracyclic ring system, which may include fused (when fused with an aryl or a heteroaryl ring, the heterocycloalkyl is bonded through a non-aromatic ring atom) or bridged ring systems; and the nitrogen, carbon or sulfur atoms in the heterocycloalkyl radical may be optionally oxidized; the nitrogen atom may be optionally quatemized.
• the heterocycloalkyl is a 3- to 8-membered heterocycloalkyl.
• the heterocycloalkyl is a 3- to 6- membered heterocycloalkyl. In some embodiments, the heterocycloalkyl is a 5- to 6-membered heterocycloalkyl.
• heterocycloalkyl radicals include, but are not limited to, aziridinyl, azetidinyl, dioxolanyl, thienyl[l,3]dithianyl, decahydroisoquinolyl, imidazolinyl, imidazolidinyl, isothiazolidinyl, isoxazolidinyl, morpholinyl, octahydroindolyl, octahydroisoindolyl, 2-oxopiperazinyl, 2-oxopiperidinyl, 2-oxopyrrolidinyl, oxazolidinyl, piperidinyl, piperazinyl, 4-piperidonyl, pyrrolidin
• heterocycloalkyl also includes all ring forms of the carbohydrates, including but not limited to the monosaccharides, the disaccharides and the oligosaccharides. More preferably, heterocycloalkyls have from 2 to 10 carbons in the ring. It is understood that when referring to the number of carbon atoms in a heterocycloalkyl, the number of carbon atoms in the heterocycloalkyl is not the same as the total number of atoms (including the heteroatoms) that make up the heterocycloalkyl (i.e., skeletal atoms of the heterocycloalkyl ring).
• heterocycloalkyl is meant to include heterocycloalkyl radicals as defined above that are optionally substituted by one or more substituents selected from alkyl, alkenyl, alkynyl, halo, fluoroalkyl, oxo, thioxo, cyano, nitro, aryl, aralkyl, aralkenyl, aralkynyl, cycloalkyl, heterocycloalkyl, heteroaryl, heteroarylalkyl, -R b - OR a , -R b -SR a , -R b -0C(0)-R a , -R b -0C(0)-0R f , -R b -0C(0)-N(R a ) 2 , -R b -N(R a ) 2 , -R b -N + (R a )
• W-heterocycloalkyl refers to a heterocycloalkyl radical as defined above containing at least one nitrogen and where the point of attachment of the heterocycloalkyl radical to the rest of the molecule is through a nitrogen atom in the heterocycloalkyl radical.
• An N- heterocycloalkyl radical is optionally substituted as described above for heterocycloalkyl radicals.
• C-heterocycloalkyl refers to a heterocycloalkyl radical as defined above and where the point of attachment of the heterocycloalkyl radical to the rest of the molecule is through a carbon atom in the heterocycloalkyl radical.
• a C-heterocycloalkyl radical is optionally substituted as described above for heterocycloalkyl radicals.
• a “heterocycloalkylene” refers to a divalent radical derived from a “heterocycloalkyl” group as described above linking the rest of the molecule to a radical group.
• the heterocycloalkylene is attached to the rest of the molecule through a single bond and to the radical group through a single bond. Unless stated otherwise specifically in the specification, a heterocycloalkylene group is optionally substituted as described above for a heterocycloalkyl group.
• Heteroaryl refers to a radical derived from a 5- to 18-membered aromatic ring radical that comprises one to seventeen carbon atoms and from one to six heteroatoms selected from nitrogen, oxygen and sulfur.
• the heteroaryl radical is a monocyclic, bicyclic, tricyclic or tetracyclic ring system, wherein at least one of the rings in the ring system is fully unsaturated, i.e., it contains a cyclic, delocalized (4n+2) p-electron system in accordance with the Hiickel theory.
• the heteroaryl is a 5- to 10-membered heteroaryl.
• the heteroaryl is a monocyclic heteroaryl, or a monocyclic 5- or 6- membered heteroaryl. In some embodiments, the heteroaryl is a 6,5-fused bicyclic heteroaryl.
• the heteroatom(s) in the heteroaryl radical is optionally oxidized. One or more nitrogen atoms, if present, are optionally quatemized.
• the heteroaryl is attached to the rest of the molecule through any atom of the ring(s).
• heteroaryl is meant to include heteroaryl radicals as defined above that are optionally substituted by one or more substituents selected from alkyl, alkenyl, alkynyl, halo, haloalkyl, oxo, thioxo, cyano, nitro, aryl, aralkyl, aralkenyl, aralkynyl, cycloalkyl, heterocycloalkyl, heteroaryl, heteroarylalkyl, -R b -OR a , -R b -SR a , -R b -OC(0)-R a , -R b -OC(0)-OR f , -R b -OC(0)- N(R a ) 2 , -R b -N(R a ) 2 , -R b -N + (R a ) 3 , -R b -
• a “heteroarylene” refers to a divalent radical derived from a “heteroaryl” group as described above linking the rest of the molecule to a radical group.
• the heteroarylene is attached to the rest of the molecule through a single bond and to the radical group through a single bond. Unless stated otherwise specifically in the specification, a heteroarylene group is optionally substituted as described above for a heteroaryl group.
• an optionally substituted group may be unsubstituted (e.g., -CH 2 CH 3 ), fully substituted (e.g., -CF 2 CF 3 ), mono- substituted (e.g., -CH 2 CH 2 F) or substituted at a level anywhere in-between fully substituted and mono-substituted (e.g., -CH2CHF2, -CH2CF3, -CF2CH3, -CFHCHF2, etc.).
• substituted alkyl includes optionally substituted cycloalkyl groups, which in turn are defined as including optionally substituted alkyl groups, potentially ad infinitum
• substitution or substitution patterns e.g., substituted alkyl includes optionally substituted cycloalkyl groups, which in turn are defined as including optionally substituted alkyl groups, potentially ad infinitum
• modulate refers to an increase or decrease in the amount, quality, or effect of a particular activity, function or molecule.
• activators, agonists, partial agonists, inverse agonists, antagonists, inhibitors, and allosteric modulators of an enzyme are modulators of the enzyme.
• agonism refers to the activation of a receptor or enzyme by a modulator, or agonist, to produce a biological response.
• agonist refers to a modulator that binds to a receptor or target enzyme and activates the receptor or enzyme to produce a biological response.
• AMPK activator can be used to refer to a compound that exhibits an EC 50 with respect to AMPK activity of no more than about 100 mM, as measured in the pAMPKl kinase activation assay.
• agonist includes super agonists, full agonists or partial agonists.
• the term “super agonist” as used herein refers to a modulator that is capable of producing a maximal response greater than the endogenous agonist for the target receptor or enzyme, and thus has an efficacy of more than 100%.
• the term “full agonist” refers to a modulator that binds to and activates a receptor or target enzyme with the maximum response that an endogenous agonist can elicit at the receptor or enzyme.
• partial agonist refers to a modulator that binds to and activates a receptor or target enzyme, but has partial efficacy, that is, less than the maximal response, at the receptor or enzyme relative to a full agonist.
• the term “positive allosteric modulator” refers to a modulator that binds to a site distinct from the orthosteric binding site and enhances or amplifies the effect of an agonist.
• the term “antagonism” or “inhibition” as used herein refers to the inactivation of a receptor or target enzyme by a modulator, or antagonist. Antagonism of a receptor, for example, is when a molecule binds to the receptor or target enzyme and does not allow activity to occur.
• the term “antagonist” or “neutral antagonist” or “inhibitor” as used herein refers to a modulator that binds to a receptor or target enzyme and blocks a biological response. An antagonist has no activity in the absence of an agonist or inverse agonist but can block the activity of either, causing no change in the biological response.
• inverse agonist refers to a modulator that binds to the same receptor or target enzyme as an agonist but induces a pharmacological response opposite to that agonist, i.e., a decrease in biological response.
• negative allosteric modulator refers to a modulator that binds to a site distinct from the orthosteric binding site and reduces or dampens the effect of an agonist.
• EC 50 is intended to refer to the concentration of a substance (e.g., a compound or a drug) that is required for 50% activation or enhancement of a biological process. In some instances, EC 50 refers to the concentration of agonist that provokes a response halfway between the baseline and maximum response in an in vitro assay. In some embodiments as used herein, EC 50 refers to the concentration of an activator (e.g., an AMPK activator) that is required for 50% activation of AMPK.
• an activator e.g., an AMPK activator
• IC50 is intended to refer to the concentration of a substance (e.g., a compound or a drug) that is required for 50% inhibition of a biological process.
• IC50 refers to the half maximal (50%) inhibitory concentration (IC) of a substance as determined in a suitable assay.
• an IC50 is determined in an in vitro assay system.
• IC50 refers to the concentration of a modulator (e.g., an antagonist or inhibitor) that is required for 50% inhibition of a receptor or a target enzyme.
• mammals include, but are not limited to, any member of the Mammalian class: humans, non-human primates such as chimpanzees, and other apes and monkey species; farm animals such as cattle, horses, sheep, goats, swine; domestic animals such as rabbits, dogs, and cats; laboratory animals including rodents, such as rats, mice and guinea pigs, and the like.
• gut-restricted refers to a compound, e.g., an AMPK activator, that is predominantly active in the gastrointestinal system.
• the biological activity of the gut-restricted compound e.g., a gut-restricted AMPK activator, is restricted to the gastrointestinal system.
• gastrointestinal concentration of a gut-restricted modulator is higher than the IC50 value or the EC50 value of the gut-restricted modulator against its receptor or target enzyme, e.g., AMPK, while the plasma levels of said gut-restricted modulator, e.g., gut-restricted AMPK activator, are lower than the IC50 value or the EC50 value of the gut-restricted modulator against its receptor or target enzyme, e.g., AMPK.
• the gut-restricted compound e.g., a gut- restricted AMPK activator, is non-systemic.
• the gut-restricted compound e.g., a gut-restricted AMPK activator
• the gut-restricted compound is a non-absorbed compound.
• the gut-restricted compound e.g., a gut-restricted AMPK activator
• the gut-restricted compound e.g., a gut-restricted AMPK activator
• the gut-restricted AMPK activator has high efflux. In other embodiments, the gut-restricted AMPK activator is a substrate for one or more intestinal efflux transporters such as P-gp (MDR1), BCRP, or MRP2.
• the gut-restricted modulator e.g., a gut-restricted AMPK activator
• the modulator e.g., a gut-restricted AMPK activator
• the systemic exposure of a gut-restricted modulator, e.g., a gut-restricted AMPK activator is, for example, less than 100, less than 50, less than 20, less than 10, or less than 5 nM, bound or unbound, in blood serum.
• the intestinal exposure of a gut-restricted modulator is, for example, greater than 1000, 5000, 10000, 50000, 100000, or 500000 nM.
• a modulator e.g., a gut-restricted AMPK activator
• a modulator e.g., a gut-restricted AMPK activator
• a modulator is covalently bonded to a kinetophore, optionally through a linker, which changes the pharmacokinetic profile of the modulator.
• the gut-restricted modulator is a soft drug.
• soft drug refers to a modulator that is biologically active but is rapidly metabolized to metabolites that are significantly less active than the modulator itself toward the target receptor.
• the gut-restricted modulator is a soft drug that is rapidly metabolized in the blood to significantly less active metabolites.
• the gut- restricted modulator is a soft drug that is rapidly metabolized in the liver to significantly less active metabolites.
• the gut-restricted modulator is a soft drug that is rapidly metabolized in the blood and the liver to significantly less active metabolites.
• the gut-restricted modulator is a soft drug that has low systemic exposure.
• the biological activity of the metabolite(s) is/are 10-fold, 20-fold, 50-fold, 100-fold, 500-fold, or 1000-fold lower than the biological activity of the soft drug gut-restricted modulator.
• kinetophore refers to a structural unit tethered to a small molecule modulator, e.g., an AMPK activator, optionally through a linker, which makes the whole molecule larger and increases the polar surface area while maintaining biological activity of the small molecule modulator.
• the kinetophore influences the pharmacokinetic properties, for example solubility, absorption, distribution, rate of elimination, and the like, of the small molecule modulator, e.g., an AMPK activator, and has minimal changes to the binding to or association with a receptor or target enzyme.
• a kinetophore is not its interaction with the target, for example an enzyme, but rather its effect on specific physiochemical characteristics of the modulator to which it is attached, e.g., an AMPK activator.
• kinetophores are used to restrict a modulator, e.g., an AMPK activator, to the gut.
• the term “linked” as used herein refers to a covalent linkage between a modulator, e.g., an AMPK activator, and a kinetophore.
• the linkage can be through a covalent bond, or through a “linker.”
• “linker” refers to one or more bifunctional molecules which can be used to covalently bond to the modulator, e.g., an AMPK activator, and kinetophore.
• the linker is attached to any part of the modulator, e.g., an AMPK activator, so long as the point of attachment does not interfere with the binding of the modulator to its receptor or target enzyme.
• the linker is non-cleavable. In some embodiments, the linker is cleavable. In some embodiments, the linker is cleavable in the gut. In some embodiments, cleaving the linker releases the biologically active modulator, e.g., an AMPK activator, in the gut.
• GI system gastrointestinal system
• GI tract gastrointestinal tract
• the GI system refers to the “gut,” meaning the stomach, small intestines, and large intestines or to the small and large intestines, including, for example, the duodenum, jejunum, and/or colon.
• the gut-brain axis refers to the bidirectional biochemical signaling that connects the gastrointestinal tract (GI tract) with the central nervous system (CNS) through the peripheral nervous system (PNS) and endocrine, immune, and metabolic pathways.
• the gut-brain axis comprises the GI tract; the PNS including the dorsal root ganglia (DRG) and the sympathetic and parasympathetic arms of the autonomic nervous system including the enteric nervous system and the vagus nerve; the CNS; and the neuroendocrine and neuroimmune systems including the hypothalamic-pituitary-adrenal axis (HPA axis).
• the gut-brain axis is important for maintaining homeostasis of the body and is regulated and modulates physiology through the central and peripheral nervous systems and endocrine, immune, and metabolic pathways.
• the gut-brain axis modulates several important aspects of physiology and behavior. Modulation by the gut-brain axis occurs via hormonal and neural circuits. Key components of these hormonal and neural circuits of the gut-brain axis include highly specialized, secretory intestinal cells that release hormones (enteroendocrine cells or EECs), the autonomic nervous system (including the vagus nerve and enteric nervous system), and the central nervous system. These systems work together in a highly coordinated fashion to modulate physiology and behavior.
• Defects in the gut-brain axis are linked to a number of diseases, including those of high unmet need.
• Diseases and conditions affected by the gut-brain axis include central nervous system (CNS) disorders including mood disorders, anxiety, depression, affective disorders, schizophrenia, malaise, cognition disorders, addiction, autism, epilepsy, neurodegenerative disorders, Alzheimer’s disease, and Parkinson’s disease, Lewy Body dementia, episodic cluster headache, migraine, pain; metabolic conditions including diabetes and its complications such as chronic kidney disease/diabetic nephropathy, diabetic retinopathy, diabetic neuropathy, cardiovascular disease, metabolic syndrome, obesity, dyslipidemia, and nonalcoholic steatohepatitis (NASH); eating and nutritional disorders including hyperphagia, cachexia, anorexia nervosa, short bowel syndrome, intestinal failure, intestinal insufficiency and other eating disorders; inflammatory disorders and autoimmune diseases such as inflammatory bowel disease, ulcerative colitis, Crohn’s disease, checkpoint inhibitor-induced colitis
• Adenosine 5'-Monophosphate-Activated Protein Kinase (AMPK) in the Gut-Brain Axis is a serine/threonine kinase and is evolutionarily conserved from yeast to mammals.
• AMPK is a heterotrimeric protein complex that is formed by one a (al or a2), one b (b ⁇ or b2), and one g (g ⁇ , g2, or g3) subunit. Due to the presence of isoforms of its components, there are 12 versions of AMPK (AMPKl, AMPK2, etc., through AMPK12).
• AMPK acts as an energy sensor and is activated by upstream enzymes when the cellular ratio of adenosine 5'- monophosphate (AMP) to adenosine triphosphate (ATP) is elevated due to nutrient deprivation.
• activated AMPK phosphorylates downstream substrates to promote catabolism and impede anabolism, leading to ATP production and energy restoration.
• AMPK activity can be altered due to numerous physiological factors, such as hormones, cytokines and dietary nutrients, as well as pathological conditions such as obesity, chronic inflammation and type 2 diabetes.
• AMPK activation leads to lower hepatic glucose production and plasma glucose levels.
• AMPK activation can act as a therapeutic agent to treat various metabolic diseases.
• AMPK has beneficial effects for gut health, such as enhancing intestinal absorption, improving barrier function, suppressing colorectal carcinogenesis, and reducing intestinal inflammation and metabolic-related disease, and is important for the maintenance of intestinal homeostasis.
• AMPK is essential for proper intestinal health.
• AMPK activation enhances paracellular junctions, nutrient transporters, autophagy and apoptosis, and suppresses inflammation and carcinogenesis in the intestine.
• this disclosure provides AMPK activators that can be broadly used for multiple conditions and disorders associated with AMPK.
• the condition or disorder is associated with the gut-brain axis.
• the condition or disorder is a central nervous system (CNS) disorder including mood disorders, anxiety, depression, affective disorders, schizophrenia, malaise, cognition disorders, addiction, autism, epilepsy, neurodegenerative disorders, Alzheimer’s disease, and Parkinson’s disease, Lewy Body dementia, episodic cluster headache, migraine, pain; metabolic conditions including diabetes and its complications such as chronic kidney disease/diabetic nephropathy, diabetic retinopathy, diabetic neuropathy, cardiovascular disease, metabolic syndrome, obesity, dyslipidemia, and nonalcoholic steatohepatitis (NASH); eating and nutritional disorders including hyperphagia, cachexia, anorexia nervosa, short bowel syndrome, intestinal failure, intestinal insufficiency and other eating disorders; inflammatory disorders and autoimmune diseases such as inflammatory bowel disease, ulcer
• the condition or disorder is a metabolic disorder.
• the condition or disorder is type 2 diabetes, hyperglycemia, metabolic syndrome, obesity, hypercholesterolemia, nonalcoholic steatohepatitis, or hypertension.
• the condition or disorder is a nutritional disorder.
• the condition or disorder is short bowel syndrome, intestinal failure, or intestinal insufficiency.
• the condition or disorder is inflammatory bowel disease includig ulcerative colitis, Crohn’s disease and checkpoint inhibitor-induced colitis.
• the condition or disorder is celiac disease, enteritis including chemotherapy -induced enteritis or radiation-induced enteritis, necrotizing enterocolitis; or gastrointestinal injury resulting from toxic insults such as radiation or chemotherapy.
• the condition or disorder is diseases/disorders of gastrointestinal barrier dysfunction including environmental enteric dysfunction, spontaneous bacterial peritonitis; allergy including food allergy, celiac sprue, and childhood allergy; graft vs.
• the condition or disorder is associated with systemic infection and inflammation from having a leaky gut barrier.
• the condition or disorder is metabolic syndrome, obesity, type 2 diabetes, coronary artery disease, fatty liver, nonalcoholic steatohepatitis (NASH), cirrhosis, hepatic encephalopathy, fibrotic disorders including scleroderma, inflammatory bowel disease including Crohn’s disease and ulcerative colitis, allergy including food allergy, celiac sprue, and childhood allergy, graft vs. host disease, irritable bowel syndrome, spontaneous bacterial peritonitis, ischemic colitis, sclerosing cholangitis, Alzheimer’s disease, Parkinson’s disease, cancer including colorectal cancer, depression, autism, or a combination thereof.
• NASH nonalcoholic steatohepatitis
• fibrotic disorders including scleroderma, inflammatory bowel disease including Crohn’s disease and ulcerative colitis
• allergy including food allergy, celiac sprue, and childhood allergy
• graft vs. host disease irritable bowel syndrome, spontaneous
• the gut mucosa maintains immune homeostasis under physiological circumstances by serving as a barrier that restricts access of microbes, diverse microbial products, food antigens and toxins in the lumen of the gut to rest of the body.
• the gut barrier is comprised of a single layer of epithelial cells, bound by cell-cell junctions, and a layer of mucin that covers the epithelium.
• an impaired gut barrier e.g. a leaky gut
• AMPK which is associated with the maintenance of tight junction in colonic epithelium, controls the progression of colitis.
• expression and assembly of tight junctions is dependent on AMPK activity.
• the present disclosure provides methods effective to strengthen/protect the gut barrier and reduce and/or prevent the progression of chronic diseases.
• the gut barrier is a critical frontier that separates microbes and antigens in the lumen of the gut from the rest of the body; a compromised “leaky” gut barrier is frequently associated with systemic infection and inflammation, which is a key contributor to many chronic allergic, infectious, metabolic and autoimmune diseases such as obesity, diabetes, inflammatory bowel diseases, food allergy, and metabolic endotoxemia.
• this disclosure provides AMPK activators that can be broadly used for multiple conditions and disorders associated with AMPK.
• the condition or disorder is associated with systemic infection and inflammation from having a leaky gut barrier.
• a leaky gut barrier can fuel the progression of multiple chronic diseases, including but not limited to: metabolic syndrome, obesity, type 2 diabetes, coronary artery disease, fatty liver, nonalcoholic steatohepatitis (NASH), cirrhosis, hepatic encephalopathy, fibrotic disorders including scleroderma, inflammatory bowel disease including Crohn’s disease, ulcerative colitis, checkpoint inhibitor-induced colitis, allergy including food allergy, celiac sprue, and childhood allergy, graft vs.
• metabolic syndrome including obesity, type 2 diabetes, coronary artery disease, fatty liver, nonalcoholic steatohepatitis (NASH), cirrhosis, hepatic encephalopathy, fibrotic disorders including scleroderma, inflammatory bowel disease including Crohn’s disease,
• irritable bowel syndrome spontaneous bacterial peritonitis, ischemic colitis, sclerosing cholangitis, Alzheimer’s disease, Parkinson’s disease, cancer including colorectal cancer, depression, autism, or a combination thereof.
• AMPK activators are useful for the treatment of gastrointestinal injury.
• AMPK activators are useful for the treatment of gastrointestinal injury resulting from toxic insult.
• the toxic insult is from radiation, chemotherapy, or a combination thereof.
• the toxic insult is radiation- induced.
• the toxic insult is chemotherapy -induced.
• systemic AMPK activation for example, AMPK activation in the heart.
• activating mutations in the AMPK y2-subunit lead to PRKAG2 cardiomyopathy.
• systemic AMPK activation results in cardiac hypertrophy and increased cardiac glycogen.
• tissue selective AMPK activation is an attractive approach for developing AMPK activators to treat disease.
• the AMPK activator is gut-restricted. In some embodiments, the AMPK activator is designed to be substantially non-permeable or substantially non- bioavailable in the blood stream. In some embodiments, the AMPK activator is designed to activate AMPK activity in the gut and is substantially non-systemic. In some embodiments, the AMPK activator has low systemic exposure.
• a gut-restricted AMPK activator has low oral bioavailability. In some embodiments, a gut-restricted AMPK activator has ⁇ 40% oral bioavailability, ⁇ 30% oral bioavailability, ⁇ 20% oral bioavailability, ⁇ 10% oral bioavailability, ⁇ 8% oral bioavailability, ⁇ 5% oral bioavailability, ⁇ 3% oral bioavailability, or ⁇ 2% oral bioavailability. [0096] In some embodiments, the unbound plasma levels of a gut-restricted AMPK activator are lower than the EC o value of the AMPK activator against AMPK.
• the unbound plasma levels of a gut-restricted AMPK activator are significantly lower than the EC50 value of the gut-restricted AMPK activator against AMPK. In some embodiments, the unbound plasma levels of the AMPK activator are 2-fold, 10-fold, 20-fold, 30-fold, 40-fold, 50-fold, or 100-fold lower than the EC50 value of the gut-restricted AMPK activator against AMPK.
• a gut-restricted AMPK activator has low systemic exposure.
• the systemic exposure of a gut-restricted AMPK activator is, for example, less than 500, less than 200, less than 100, less than 50, less than 20, less than 10, or less than 5 nM, bound or unbound, in blood serum. In some embodiments, the systemic exposure of a gut-restricted AMPK activator is, for example, less than 500, less than 200, less than 100, less than 50, less than 20, less than 10, or less than 5 ng/mL, bound or unbound, in blood serum.
• a gut-restricted AMPK activator has high intestinal exposure.
• the intestinal exposure of a gut-restricted AMPK activator is, for example, greater than 1, 5, 10, 50, 100, 250 or 500 mM.
• a gut-restricted AMPK activator has high exposure in the colon.
• the colon exposure of a gut-restricted AMPK activator is, for example, greater than 1, 5, 10, 50, 100, 250 or 500 pM.
• the colon exposure of a gut-restricted AMPK activator is, for example, greater than 100 pM.
• a gut-restricted AMPK activator has low permeability. In some embodiments, a gut-restricted AMPK activator has low intestinal permeability. In some embodiments, the permeability of a gut-restricted AMPK activator is, for example, less than 5.0xl0 6 cm/s, less than 2.0> ⁇ 10 6 cm/s, less than 1.5xl0 6 cm/s, less than l.OxlO 6 cm/s, less than 0.75xl0 6 cm/s, less than 0.50xl0 6 cm/s, less than 0.25xl0 6 cm/s, less than O.lOxlO 6 cm/s, or less than 0.05xl0 6 cm/s.
• a gut-restricted AMPK activator has low absorption. In some embodiments, the absorption of a gut-restricted AMPK activator is less than 40%, less than 30%, Jess than 20%, less than 10%, less than 5%, or less than 1%.
• a gut-restricted AMPK activator has high plasma clearance. In some embodiments, a gut-restricted AMPK activator is undetectable in plasma in less than 8 hours, less than 6 hours, less than 4 hours, less than 3 hours, less than 120 min, less than 90 min, less than 60 min, less than 45 min, less than 30 min, or less than 15 min.
• a gut-restricted AMPK activator is rapidly metabolized upon administration.
• a gut-restricted AMPK activator has a short half-life.
• the half-life of a gut-restricted AMPK activator is less than less than 8 hours, less than 6 hours, less than 4 hours, less than 3 hours, less than 120 min, less than 90 min, less than 60 min, less than 45 min, less than 30 min, or less than 15 min.
• the metabolites of a gut-restricted AMPK activator have rapid clearance.
• the metabolites of a gut-restricted AMPK activator are undetectable in less than 8 hours, less than 6 hours, less than 4 hours, less than 3 hours, less than 120 min, less than 90 min, less than 60 min, less than 45 min, less than 30 min, or less than 15 min.
• the metabolites of a gut-restricted AMPK activator have low bioactivity.
• the EC50 value of the metabolites of a gut-restricted AMPK activator is 10-fold, 20-fold, 30-fold, 40-fold, 50-fold, 100-fold, 500-fold, or 1000-fold higher than the EC50 value of the gut-restricted AMPK activator against AMPK.
• the metabolites of a gut-restricted AMPK activator have rapid clearance and low bioactivity.
• the gut-restricted AMPK activator has high efflux.
• the gut-restricted AMPK activator is a substrate for one or more intestinal efflux transporters such as P-gp (MDRl), BCRP, or MRP2.
• the efflux of the gut-restricted AMPK activator as measured by the B-A/A-B ratio in a cell line such as Caco-2 or MDCK with or without over-expression of one or more efflux transporters is, for example, greater than 2, greater than 5, greater than 10, greater than 25, or greater than 50.
• the AMPK activator is gut- restricted. In some embodiments, the AMPK activator is a gut-restricted AMPK agonist. In some embodiments, the AMPK activator is a gut-restricted AMPK super agonist. In some embodiments, the AMPK activator is a gut-restricted AMPK full agonist. In some embodiments, the AMPK activator is a gut-restricted AMPK partial agonist. In some embodiments, the AMPK activator is covalently bonded to a kinetophore. In some embodiments, the AMPK activator is covalently bonded to a kinetophore through a linker.
• X is -0-, -S-, or -NR 1 -; each R 1 is independently hydrogen or C1-C4 alkyl; each R 2 is independently halogen, -CN, C1-C4 alkyl, or C1-C4 fluoroalkyl; n is 0-2; L 1 is -(CR 3 R 4 )-(CR 5 R 6 )m- cycloalkylene, heterocycloalkylene, arylene, or heteroarylene;
• R 3 and R 4 are each independently hydrogen, C 1 -C 4 alkyl, or C 1 -C 4 fluoroalkyl; each R 5 and R 6 is independently hydrogen, halogen, -CN, C 1 -C 4 alkyl, or C 1 -C 4 fluoroalkyl; m is 0-2;
• G is -OR 7 , -C(0)0R 7 , -P(0)(R 8 )0R 7 , -P(0)(0R 7 ) 2 , or -S(0) 2 0R 7 ; each R 7 is independently hydrogen or C1-C4 alkyl;
• R 8 is C 1 -C 4 alkyl
• R A is a 6,5-fused bicyclic heteroaryl or a 6,6-fused bicyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 10 groups; or R A is -L A -A;
• Y is N, CH, or CR 2 .
• Y is CH.
• Y is CR 2 .
• Y is N.
• X is -0-, -S-, or -NR 1 -. In some embodiments, X is -0-. In some embodiments, X is -S-. In some embodiments, X is -NR 1 -. In some embodiments, X is -NR 1 -; and R 1 is hydrogen or unsubstituted C 1 -C 4 alkyl. In some embodiments, X is -NR 1 -; and R 1 is hydrogen or methyl. In some embodiments, X is -NH-. [00110] In some embodiments of a compound of Formula (A), or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof, Y is CH; and X is -S-.
• the compound has the structure of Compound Al:
• Compound A1 or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is N; and X is -S-.
• the compound of Formula (A), or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is a compound of Formula (I):
• R 1 is hydrogen or C1-C4 alkyl
• each R 2 is independently halogen, -CN, C 1 -C 4 alkyl, or C 1 -C 4 fluoroalkyl
• n is 0-2;
• L 1 is -(CR 3 R 4 )-(CR 5 R 6 )m-, C3-C6 cycloalkylene, 3- to 6-membered heterocycloalkylene, phenylene, or monocyclic heteroarylene;
• R 3 and R 4 are each independently hydrogen, C 1 -C 4 alkyl, or C 1 -C 4 fluoroalkyl; each R 5 and R 6 is independently hydrogen, halogen, -CN, C 1 -C 4 alkyl, or C 1 -C 4 fluoroalkyl; m is 0-2;
• G is -C(0)0R 7 , -P(0)(R 8 )0R 7 , -P(0)(0R 7 ) 2 , or -S(0) 2 0R 7 ; each R 7 is independently hydrogen or C1-C4 alkyl;
• R 8 is C 1 -C 4 alkyl
• R A is a 6,5-fused bicyclic heteroaryl or a 6,6-fused bicyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 10 groups; or R A is -L A -A;
• a compound of Formula (A), (I), or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof when L A is phenylene, A is not 3- to 8- membered heterocycloalkyl. In some embodiments, when L A is unsubstituted phenylene, A is not 3- to 8-membered heterocycloalkyl. In some embodiments, when L A is unsubstituted phenylene, A is not 6-membered heterocycloalkyl. In some embodiments, when L A is unsubstituted phenylene, A is not unsubstituted 6-membered heterocycloalkyl. In some embodiments, when L A is unsubstituted phenylene, A is not unsubstituted morpholinyl. In some embodiments, R A is not 4-morpholinylphenyl.
• R 1 is hydrogen or C1-C4 alkyl
• each R 2 is independently halogen, -CN, C 1 -C 4 alkyl, or C 1 -C 4 fluoroalkyl
• n is 0-2;
• L 1 is -(CR 3 R 4 )-(CR 5 R 6 )m-, C3-C6 cycloalkylene, 3- to 6-membered heterocycloalkylene, phenylene, or monocyclic heteroarylene;
• R 3 and R 4 are each independently hydrogen, C 1 -C 4 alkyl, or C 1 -C 4 fluoroalkyl; each R 5 and R 6 is independently hydrogen, halogen, -CN, C 1 -C 4 alkyl, or C 1 -C 4 fluoroalkyl; m is 0-2;
• G is -C(0)0R 7 , -P(0)(R 8 )0R 7 , -P(0)(0R 7 ) 2 , or -S(0) 2 0R 7 ; each R 7 is independently hydrogen or C1-C4 alkyl;
• R 8 is C 1 -C 4 alkyl
• R A is a 6,5-fused bicyclic heteroaryl or a 6,6-fused bicyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 10 groups; or R A is -L A -A;
• L A is -CoC-, or , wherein each pi, p2, and p3 is independently 1 or 2; or L A is phenylene or monocyclic heteroarylene, which is unsubstituted or substituted with 1, 2, or 3 R 11 groups;
• each R 1 is independently hydrogen or unsubstituted C 1 -C 4 alkyl. In some embodiments, each R 1 is hydrogen or methyl. In some embodiments, each R 1 is hydrogen.
• each R 2 is independently halogen, - CN, unsubstituted C 1 -C 4 alkyl, or unsubstituted C 1 -C 4 fluoroalkyl.
• each R 2 is independently -F, -Cl, -Br, -CN, methyl, ethyl, isopropyl, n-propyl, t-butyl, i-butyl, s- butyl, n-butyl or unsubstituted C 1 -C 4 fluoroalkyl.
• each R 2 is independently -F, -Cl, -CN, methyl, ethyl, isopropyl, or-CF 3. In some embodiments, each R 2 is independently R 2 is -F, -Cl, or -CN.
• n is 0. In some embodiments, n is 1. In some embodiments, n is 2. In some embodiments, n is 0 or 1. In some embodiments, n is 1 or 2. In some embodiments, n is 0, 1, or 2.
• R 1 is hydrogen or methyl; and each R 2 is independently -F, -Cl, -CN, methyl, ethyl, isopropyl, or-CF 3.
• R 1 is hydrogen; R 2 is -F, -Cl, or -CN; and n is 1.
• L 1 is C 3 -C 6 cycloalkylene, 3- to 6- membered heterocycloalkylene, phenylene, or monocyclic heteroarylene.
• L 1 is C3-C6 cycloalkylene, 3- to 6-membered heterocycloalkylene, phenylene, or monocyclic heteroaryl ene, wherein the cycloalkylene, heterocycloalkylene, phenylene, or heteroarylene is unsubtituted or substituted.
• L 1 is C3-C6 cycloalkylene, 3- to 6-membered heterocycloalkylene, phenylene, or monocyclic heteroarylene, wherein the cycloalkylene, heterocycloalkylene, phenylene, or heteroarylene is unsubtituted.
• L 1 is C3-C6 cycloalkylene, 3- to 6-membered heterocycloalkylene, phenylene, or monocyclic heteroarylene, wherein the cycloalkylene, heterocycloalkylene, phenylene, or heteroarylene is substituted.
• L 1 is C3-C6 cycloalkylene. In some embodiments, L 1 is substituted C3-C6 cycloalkylene.
• L 1 is unsubstituted C3-C6 cycloalkylene. In some embodiments, L 1 is cyclopropylene, cyclobutylene, cyclopentylene, or cyclohexylene. In some embodiments, L 1 is cyclobutylene.
• L 1 is 3- to 6-membered heterocycloalkylene. In some embodiments, L 1 is substituted 3- to 6-membered heterocycloalkylene. In some embodiments, L 1 is unsubstituted 3- to 6-membered heterocycloalkylene.
• L 1 is phenylene. In some embodiments, L 1 is substituted phenylene. In some embodiments, L 1 is unsubstituted phenylene.
• L 1 is monocyclic heteroarylene. In some embodiments, L 1 is substituted monocyclic heteroarylene. In some embodiments, L 1 is unsubstituted monocyclic heteroarylene.
• L 1 is 5- or 6-membered monocyclic heteroarylene. In some embodiments, L 1 is 5-membered monocyclic heteroarylene. In some embodiments, L 1 is 6-membered monocyclic heteroarylene. In some embodiments, L 1 is substituted or unsubstituted furanylene, thienylene, pyrrolylene, imidazolylene, pyrazolylene, triazolylene, oxazolylene, isoxazolylene, thiazolylene, isothiazolylene, oxadiazolylene, thiadiazolylene, pyridinylene, pyrimidinylene, pyridazinylene, pyrazinylene, or triazinylene.
• L 1 is -(CR 3 R 4 )-(CR 5 R 6 ) m-
• R 3 and R 4 are each independently hydrogen, C 1 -C 4 alkyl, or C 1 -C 4 fluoroalkyl
• each R 5 and R 6 is independently hydrogen, halogen, -CN, C 1 -C 4 alkyl, or C 1 -C 4 fluoroalkyl
• m is 0-2.
• R 3 and R 4 are each independently hydrogen, unsubstituted C 1 -C 4 alkyl, or unsubstituted C 1 -C 4 fluoroalkyl.
• R 3 and R 4 are each independently hydrogen, methyl, ethyl, isopropyl, n-propyl, t-butyl, i-butyl, s-butyl, n-butyl or unsubstituted C 1 -C 4 fluoroalkyl. In some embodiments, R 3 and R 4 are each independently hydrogen, methyl, ethyl, isopropyl, or -CF 3 . In some embodiments, R 3 and R 4 are each independently hydrogen, methyl, or -CF 3 . In some embodiments, R 3 and R 4 are each independently hydrogen or methyl. In some embodiments, R 3 and R 4 are each hydrogen.
• each R 5 and R 6 is independently hydrogen, halogen, -CN, unsubstituted C 1 -C 4 alkyl, or unsubstituted C 1 -C 4 fluoroalkyl.
• each R 5 and R 6 is independently hydrogen, -F, -Cl, - Br, -CN, methyl, ethyl, isopropyl, n-propyl, t-butyl, i-butyl, s-butyl, n-butyl or unsubstituted Ci- C4 fluoroalkyl.
• each R 5 and R 6 is independently hydrogen, -F, -Cl, -CN, methyl, ethyl, isopropyl, or -CF 3 .
• each R 5 and R 6 is independently hydrogen, -F, methyl, or -CF 3 .
• each R 5 and R 6 is independently hydrogen or methyl.
• each R 5 and R 6 is hydrogen.
• m is 0.
• m is 1.
• m is 2.
• m is 0 or 1.
• m is 1 or 2.
• m is 0, 1, or 2.
• L 1 is -(CR 3 R 4 )-(CR 5 R 6 ) m- ; R 3 and R 4 are each independently hydrogen, methyl, or -CF3; and each R 5 and R 6 is independently hydrogen, -F, -CN, methyl, or -CF3.
• L 1 is -(CR 3 R 4 )-(CR 5 R 6 ) m- ; R 3 and R 4 are each independently hydrogen or methyl; and m is 0.
• L 1 is -CH2-, -CHMe-, or -CMe2- In some embodiments, L 1 is -CH2-.
• each R 7 is independently hydrogen or unsubstituted C 1 -C 4 alkyl. In some embodiments, each R 7 is independently hydrogen, methyl, ethyl, isopropyl, n-propyl, t-butyl, i-butyl, s-butyl, or n-butyl. In some embodiments, each R 7 is independently hydrogen, methyl, ethyl, isopropyl, or t-butyl. In some embodiments, each R 7 is independently hydrogen, methyl, or ethyl. In some embodiments, each R 7 is hydrogen.
• R 8 is unsubstituted C1-C4 alkyl.
• R 8 is methyl, ethyl, isopropyl, n-propyl, t-butyl, i-butyl, s-butyl, or n-butyl.
• R 8 is methyl or ethyl.
• R 8 is methyl.
• G is -C(0)OR 7 .
• G is -P(0)(R 8 )0R 7 .
• G is -P(0)(0R 7 ) 2 .
• G is -S(0) 2 0R 7 .
• G is -C(0)OH, -P(0)(Me)OH, - P(0)(OEt)(OH), -P(0)(OH) 2 , or -S(0) 2 0H.
• G is -C(0)OH, - P(0)(Me)OH, -P(0)(OH) 2 , or -S(0) 2 0H. In some embodiments, G is -C(0)OH, - P(0)(Me)OH, -P(0)(OEt)(OH), or -P(0)(OH) 2 . In some embodiments, G is -C(0)OH. In some embodiments, G is -P(0)(Me)OH. In some embodiments, G is -P(0)(OEt)(OH). In some embodiments, G is -P(0)(OH) 2 . In some embodiments, G is -S(0) 2 0H.
• L 1 is -(CR 3 R 4 )-(CR 5 R 6 ) m- ;
• R 3 and R 4 are each independently hydrogen, methyl, or -CF3;
• each R 5 and R 6 is independently hydrogen, - F, -CN, methyl, or -CF3;
• each R 7 is independently hydrogen, methyl, or ethyl; and
• R 8 is methyl.
• L 1 is -(CR 3 R 4 )-(CR 5 R 6 ) m- ; R 3 and R 4 are each independently hydrogen or methyl; m is 0; and G is -C(0)OH, -P(0)(Me)OH, -P(0)(OEt)(OH), -P(0)(OH) 2 , or - S(0) 2 0H.
• L 1 is -(CR 3 R 4 )-(CR 5 R 6 ) m- ; R 3 and R 4 are each independently hydrogen or methyl; m is 0; and G is -C(0)OH, -P(0)(Me)OH, -P(0)(OEt)(OH), or - P(0)(OH)2.
• L 1 is -(CR 3 R 4 )-(CR 5 R 6 ) m- ; R 3 and R 4 are each independently hydrogen or methyl; m is 0; and G is -C(0)OH, -P(0)(Me)OH, -P(0)(OH) 2 , or - S(0) 2 0H.
• L 1 is -CH2-, -CHMe-, or -GVfe-; and G is -C(0)OH.
• L 1 is -CH2-; and G is -C(0)OH, -P(0)(Me)OH, -P(0)(OEt)(OH), - P(0)(OH) 2 , or -S(0) 2 0H.
• L 1 is -CH2-; and G is -C(0)OH, - P(0)(Me)OH, -P(0)(OEt)(OH), or -P(0)(OH) 2 .
• L 1 is -CH2-; and G is - C(0)OH, -P(0)(Me)OH, -P(0)(OH) 2 , or -S(0) 2 0H.
• L 1 is -CH2-; and G is -C(0)OH.
• the compound of Formula (A), (I), or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is a compound of Formula (II):
• R A is a 6,5-fused bicyclic heteroaryl or a 6,6-fused bicyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 10 groups.
• R A is a 6,6-fused bicyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 10 groups.
• R A is a 6,5-fused bicyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 10 groups.
• R A is quinolinyl, isoquinolinyl, quinoxalinyl, phthalazinyl, quinazolinyl, or cinnolinyl; which is unsubstituted or substituted with 1, 2, or 3 R 10 groups.
• R A is indolyl, isoindolyl, indazolyl, benzimidazolyl, azaindolyl, benzofuranyl, benzothiophenyl, benzoxazolyl, benzisoxazolyl, benzthiazolyl, or benzisothiazolyl; which is unsubstituted or substituted with 1, 2, or 3 R 10 groups.
• R A is indazolyl; which is unsubstituted or substituted with 1, 2, or 3 R 10 groups.
• R A is a 6,5-fused bicyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 10 groups; and each R 10 is independently halogen, -CN, C1-C6 alkyl, or C1-C6 fluoroalkyl.
• R A is a 6,5-fused bicyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 10 groups; and each R 10 is independently C1-C6 alkyl.
• R' 20 acceptable salt, solvate, stereoisomer, or prodrug thereof R A is ; wherein X 1 and X 2 are each independently CH, C-R 10 , or N; and R 20 is hydrogen or C1-C6 alkyl. In some embodiments, wherein X 1 and X 2 are each independently CH, C-R 10 , or N; and R 20 is hydrogen or C1-C6 alkyl. In some embodiments, wherein X 1 and
• X are each independently CH, is hydrogen or C1-C6 alkyl. In some embodiments, wherein X 1 and X 2 are each independently CH, C-R 10 , or
• R 20 is hydrogen or C1-C6 alkyl.
• R 20 is hydrogen or unsubstituted Ci-Ce alkyl.
• R 20 is hydrogen or unsubstituted C1-C4 alkyl.
• R 20 is hydrogen, methyl, ethyl, isopropyl, n-propyl, t-butyl, i-butyl, s-butyl, or n- butyl.
• each R 20 is independently hydrogen or methyl.
• each R 20 is hydrogen. In some embodiments, each R 20 is methyl.
• each R 10 is independently halogen, -CN, C1-C6 alkyl, or C1-C6 fluoroalkyl.
• each R 10 is independently C1-C6 alkyl.
• R A is -L A -A.
• R A is -L A -A; and L A is -CoC-, or , wherein each pi, p2, and p3 is independently 1 or 2. In some embodiments, L A is
• L A is , and pi, p2, and p3 are the same. In some embodiments, L A is , and pi, p2, and p3 are not the same. In some embodiments,
• R A is -L A -A; and L A is phenylene or monocyclic heteroarylene, which is unsubstituted or substituted with 1, 2, or 3 R 11 groups.
• L A is phenylene, which is unsubstituted or substituted with 1, 2, or 3 R 11 groups.
• L A is an unsubstituted phenylene.
• L A is monocyclic heteroarylene, which is unsubstituted or substituted with 1, 2, or 3 R 11 groups.
• L A is an unsubstituted monocyclic heteroarylene. In some embodiments, L A is 5- or 6-membered monocyclic heteroarylene, which is unsubstituted or substituted with 1, 2, or 3 R 11 groups. In some embodiments, L A is 5-membered monocyclic heteroarylene, which is unsubstituted or substituted with 1, 2, or 3 R 11 groups. In some embodiments, L A is 6-membered monocyclic heteroarylene, which is unsubstituted or substituted with 1, 2, or 3 R 11 groups.
• L A is an pyrrolylene, pyrazolylene, imidazolylene, triazolylene, furanylene, thiophenylene, oxazolylene, isoxazolylene, thiazolylene, isothiazolylene, oxadiazolylene, thiadiazolylene, pyridinylene, pyridazinylene, pyrimidinylene, pyrazinylene, or triazinylene; which is unsubstituted or substituted with 1, 2, or 3 R 11 groups.
• R A is -L A -A
• the compound of Formula (A), (I), (II), or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is a compound of Formula (III):
• Formula (III) or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof.
• A is C3-C8 cycloalkyl, 3- to 8-membered heterocycloalkyl, C6-C10 aryl, or 5- to 10-membered heteroaryl, which is substituted with 1, 2, or 3 R 12 groups.
• A is C3-C8 cycloalkyl.
• A is unsubstituted or substituted C3-C8 cycloalkyl.
• A is C3-C8 cycloalkyl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is C3-C6 cycloalkyl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, or cyclooctyl; which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is C5-C6 cycloalkyl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is 3- to 8- membered heterocycloalkyl.
• A is unsubstituted or substituted 3- to 8- membered heterocycloalkyl. In some embodiments, A is 3- to 8-membered heterocycloalkyl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is 3- to 6-membered heterocycloalkyl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is 5- to 6-membered heterocycloalkyl which is substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is 3- to 8-membered l-heterocycloalkyl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is 3- to 6- membered A-heterocycloalkyl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is 5- to 6-membered A-heterocycloalkyl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is aziridinyl, azetidinyl, pyrrolodinyl, piperidinyl, morpholinyl, piperazinyl, or thiomorpholinyl; which is unsubstituted or substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is pyrrolidinyl or piperidinyl; which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is C6-C10 aryl. In some embodiments, A is unsubstituted or substituted C6-C10 aryl. In some embodiments, A is C6-C10 aryl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is phenyl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is unsubstituted or substituted phenyl. In some embodiments, A is naphthyl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is unsubstituted or substituted naphthyl.
• A is 5- to 10- membered heteroaryl. In some embodiments, A is unsubstituted or substituted 5- to 10- membered heteroaryl. In some embodiments, A is 5- to 10-membered heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is monocyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is an unsubstituted monocyclic heteroaryl.
• A is 5- or 6- membered monocyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is 5-membered monocyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is 6-membered monocyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is pyrrolyl, pyrazolyl, imidazolyl, triazolyl, furanyl, thiophenyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, oxadiazolyl, thiadiazolyl, pyridinyl, pyridazinyl, pyrimidinyl, pyrazinyl, or triazinyl; which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is pyridinyl, pyridazinyl, pyrimidinyl, pyrazinyl, or triazinyl; which is unsubstituted or substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is pyridinyl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is bicyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is an unsubstituted bicyclic heteroaryl.
• A is 9- or 10-membered bicyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is a 6,5-fused bicyclic heteroaryl or a 6,6-fused bicyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is a 6,6-fused bicyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is a 6,5-fused bicyclic heteroaryl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is quinolinyl, isoquinolinyl, quinoxalinyl, phthalazinyl, quinazolinyl, or cinnolinyl; which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is indolyl, isoindolyl, indazolyl, benzimidazolyl, azaindolyl, benzofuranyl, benzothiophenyl, benzoxazolyl, benzisoxazolyl, benzthiazolyl, or benzisothiazolyl; which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• each R 12 is -OH.
• each R 12 is -0S0 2 0H.
• each R 12 is independently -OH, - OSO2OH, -CH 2 CH 2 C(CH3)3, or triazolyl.
• each R 12 is independently - OH, -0S0 2 0H, or triazolyl.
• at least 1 R 12 is -OH.
• A is C3-C8 cycloalkyl or C6-C10 aryl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is phenyl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups; and each R 12 is independently -OH, - OSO2OH, -CH 2 CH 2 C(CH3)3, or triazolyl.
• A is phenyl which is unsubstituted or substituted with 1, 2, or 3 R 12 groups; and each R 12 is independently -OH, - OSO2OH, or triazolyl.
• A is phenyl, which is unsubstituted or substituted with a -OH or -OSO2OH group.
• A is phenyl, which is unsubstituted or substituted with a -OH group.
• A is phenyl substituted with a -OH group.
• A is phenyl which is substituted with a -OH group and is optionally substituted with one other group selected from -CH2CH2C(CH3)3 and triazolyl. In some embodiments, A is phenyl which is substituted with a -OH group and is optionally substituted with a triazolyl group. In some embodiments, A is phenyl substituted with a -OSO2OH group.
• A is 3- to 8- membered heterocycloalkyl or 5- to 10-membered heteroaryl, which is unsubstituted or substituted with 1, 2, or 3 R 12 groups.
• A is 3- to 8-membered heterocycloalkyl or 5- to 10-membered heteroaryl, which is unsubstituted or substituted with 1,
• A is C3-C8 cycloalkyl, 3- to 8-membered heterocycloalkyl, C6-C10 aryl, or 5- to 10-membered heteroaryl, which is substituted with 1, 2, or 3 R 12 groups.
• A is C6-C10 aryl which is substituted with 1, 2, or 3 R 12 groups.
• A is phenyl which is substituted with 1, 2, or 3 R 12 group.
• A is phenyl which is substituted with 1, 2, or 3 R 12 groups; and each R 12 is independently -OH, -0S0 2 0H, - CH 2 CH 2 C(CH 3 ) 3 , or triazolyl. In some embodiments, A is phenyl which is substituted with 1, 2, or 3 R 12 groups; and each R 12 is independently -OH, -0S0 2 0H, or triazolyl. In some embodiments, A is phenyl, which is substituted with a -OH or -0S0 2 0H group. In some embodiments, A is phenyl, which is substituted with a -OH group.
• A is phenyl which is substituted with a -OH group and is optionally substituted with one other group selected from -CH 2 CH 2 C(CH 3 ) 3 and triazolyl. In some embodiments, A is phenyl which is substituted with a -OH group and is optionally substituted a triazolyl group. In some embodiments, A is phenyl substituted with a -0S0 2 0H group.
• A is 3- to 8- membered heterocycloalkyl, which is substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is 3- to 6-membered heterocycloalkyl, which is substituted with 1, 2, or 3 R 12 groups.
• A is pyrrolidinyl, which is substituted by a -OH group.
• the compound of Formula (A), (I), (II), (III) or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is a compound of Formula (IV):
• Formula (IV) or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof.
• the compound of Formula (A), (I), (II), (III) or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is a compound of Formula (V):
• R 2 is independently halogen, -CN, C1-C4 alkyl, or C1-C4 fluoroalkyl;
• R 3 and R 4 are each independently hydrogen, C 1 -C 4 alkyl, or C 1 -C 4 fluoroalkyl;
• G is -C(0)0R 7 , -P(0)(R 8 )0R 7 , -P(0)(0R 7 ) 2 , or -S(0) 2 0R 7 ; each R 7 is independently hydrogen or C1-C4 alkyl; R 8 is Ci-C 4 alkyl;
• A is C6-C10 aryl which is substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is phenyl which is substituted with 1, 2, or 3 R 12 group.
• A is phenyl which is substituted with 1, 2, or 3 R 12 groups; and each R 12 is independently -OH, -OSO2OH, - CH 2 CH 2 C(CH3)3, or triazolyl. In some embodiments, A is phenyl which is substituted with 1, 2, or 3 R 12 groups; and each R 12 is independently -OH, -0S0 2 0H, or triazolyl. In some embodiments, A is phenyl, which is substituted with a -OH or -0S0 2 0H group. In some embodiments, A is phenyl, which is substituted with a -OH group.
• A is phenyl which is substituted with a -OH group and is optionally substituted with one other group selected from -CH 2 CH 2 C(CH3)3 and triazolyl. In some embodiments, A is phenyl which is substituted with a -OH group and is optionally substituted with a triazolyl group. In some embodiments, A is phenyl substituted with a -0S0 2 0H group.
• the compound of Formula (A), (I), (II), or (III), or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is a compound of Formula (IV):
• Formula (IV) or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof.
• R 2 is independently halogen, -CN, Ci- C4 alkyl, or C1-C4 fluoroalkyl;
• R 3 and R 4 are each independently hydrogen, C1-C4 alkyl, or Ci- C 4 fluoroalkyl;
• G is -C(0)OR 7 , -P(0)(R 8 )0R 7 , -P(0)(0R 7 ) 2 , or -S(0) 2 0R 7 ; each R 7 is independently hydrogen or C1-C4 alkyl; and R 8 is C1-C4 alkyl.
• A is 3- to 8- membered heterocycloalkyl, which is substituted with 1, 2, or 3 R 12 groups. In some embodiments, A is 3- to 6-membered heterocycloalkyl, which is substituted with 1, 2, or 3 R 12 groups.
• A is pyrrolidinyl, which is substituted by a -OH group.
• the compound of Formula (A), (I), (II), or (III), or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is a compound of Formula (V):
• R 2 is independently halogen, -CN, Ci- C4 alkyl, or C1-C4 fluoroalkyl;
• R 3 and R 4 are each independently hydrogen, C1-C4 alkyl, or Ci- C 4 fluoroalkyl;
• G is -C(0)OR 7 , -P(0)(R 8 )0R 7 , -P(0)(0R 7 ) 2 , or -S(0) 2 0R 7 ; each R 7 is independently hydrogen or C1-C4 alkyl;
• R 8 is C1-C4 alkyl;
• each R 2 is independently -F, -Cl, -CN, methyl, ethyl, isopropyl, or -CF3;
• R 3 and R 4 are each independently hydrogen, methyl, or -CF3;
• each R 7 is independently hydrogen, methyl, or ethyl; and
• R 8 is methyl.
• R 2 is -F, -Cl, or -CN; R 3 and R 4 are each independently hydrogen or methyl; and G is -C(0)0H, -P(0)(Me)0H, -P(0)(0Et)(0H), - P(0)(0H) 2 , or -S(0) 2 0H.
• L 1 is -CH 2- , -CHMe-, or -CMe 2- ; and G is - C(0)0H.
• each R 13 is independently C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkynyl, C1-C6 fluoroalkyl, C3-C6 cycloalkyl, 3- to 6-membered heterocycloalkyl, phenyl, or monocyclic heteroaryl.
• each R 13 is independently C1-C6 alkyl, C1-C6 fluoroalkyl, C3-C6 cycloalkyl, 3- to 10-membered heterocycloalkyl, phenyl, or monocyclic heteroaryl. In some embodiments, each R 13 is independently C1-C6 alkyl, C1-C6 fluoroalkyl, C3-C6 cycloalkyl, or 3- to 6-membered heterocycloalkyl. In some embodiments, each R 13 is independently C1-C6 alkyl.
• each R 14 is independently hydrogen, C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkynyl, C1-C6 fluoroalkyl, C3-C6 cycloalkyl, 3- to 6-membered heterocycloalkyl, phenyl, or monocyclic heteroaryl.
• each R 14 is independently hydrogen, C1-C6 alkyl, C1-C6 fluoroalkyl, C3-C6 cycloalkyl, 3- to 10-membered heterocycloalkyl, phenyl, or monocyclic heteroaryl. In some embodiments, each R 14 is independently hydrogen, C1-C6 alkyl, C1-C6 fluoroalkyl, C3-C6 cycloalkyl, or 3- to 6-membered heterocycloalkyl. In some embodiments, each R 14 is independently hydrogen or C1-C6 alkyl. In some embodiments, each R 14 is hydrogen. In some embodiments, each R 14 is independently C1-C6 alkyl.
• two R 14 on the same nitrogen atom are taken together with the nitrogen to which they are attached to form a 3- to e- membered/V-heterocycloalkyl.
• two R 14 on the same nitrogen atom are taken together with the nitrogen to which they are attached to form a 5- to 6-membered N- heterocycloalkyl.
• each R 13 is independently C1-C6 alkyl, C1-C6 fluoroalkyl, C3-C6 cycloalkyl, or 3- to 6-membered heterocycloalkyl; and each R 14 is independently hydrogen, C1-C6 alkyl, C1-C6 fluoroalkyl, C3-C6 cycloalkyl, or 3- to 6-membered heterocycloalkyl; or two R 14 on the same nitrogen atom are taken together with the nitrogen to which they are attached to form a 3- to 6-membered N- heterocycloalkyl.
• the compound disclosed herein is a compound in the following table.
• the compound disclosed herein is a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug of a compound described in Table A. In some embodiments, the compound disclosed herein is a pharmaceutically acceptable salt of a compound described in Table A.
• AMPK activators disclosed herein are useful for the treatment of the conditions described herein.
• any AMPK activator can be used for the methods described herein.
• known AMPK activators include MK- 3903, MK-8722, PF-06409577, PXL-770, O-304X, 0-304, ENERGI-F701, C-455, NMIC-9, NT-1195, CNX-012, TSL-1516, SU-018, NEX-001 and those described in US 200360471064, WO-2006071095, WO-2007002461, WO-2007005785, WO-2007019914, WO-2008006432, WO-2008016278, WO-2008083124, WO-2008136642, WO-2009076631, WO-2009124636, WO-2009124636, WO-2009132136, WO-2009152909, WO-2009135580, WO-2010
• known AMPK activators can be used for treating a condition or disorder involves the gut-brain axis.
• the condition or disorder is a nutritional disorder.
• the condition or disorder is short bowel syndrome, intestinal failure, or intestinal insufficiency.
• the condition or disorder is associated with systemic infection and inflammation from having a leaky gut barrier.
• condition or disorder is metabolic syndrome, obesity, type 2 diabetes, coronary artery disease, fatty liver, nonalcoholic steatohepatitis (NASH), cirrhosis, hepatic encephalopathy, fibrotic disorders including scleroderma, inflammatory bowel disease including Crohn’s disease, ulcerative colitis and checkpoint inhibitor-induced colitis, psoriasis, celiac disease, necrotizing enterocolitis, gastrointestinal injury resulting from toxic insults such as radiation or chemotherapy, environmental enteric dysfunction, allergy including food allergy, celiac sprue, and childhood allergy, graft vs.
• NASH nonalcoholic steatohepatitis
• fibrotic disorders including scleroderma, inflammatory bowel disease including Crohn’s disease, ulcerative colitis and checkpoint inhibitor-induced colitis, psoriasis, celiac disease, necrotizing enterocolitis, gastrointestinal injury resulting from toxic insults such as radiation or chemotherapy, environmental enteric dysfunction, allergy including food
• irritable bowel syndrome spontaneous bacterial peritonitis, ischemic colitis, sclerosing cholangitis, Alzheimer’s disease, Parkinson’s disease, cancer including colorectal cancer, depression, autism, or a combination thereof.
• known AMPK activators can be used for treating gastrointestinal injury resulting from toxic insult in a subject in need thereof.
• the toxic insult is from radiation, chemotherapy, or a combination thereof.
• the toxic insult is radiation-induced.
• the toxic insult is chemotherapy-induced.
• the compounds described herein exist as “geometric isomers.” In some embodiments, the compounds described herein possess one or more double bonds. The compounds presented herein include all cis, trans, syn, anti,
• Z) isomers as well as the corresponding mixtures thereof. In some situations, compounds exist as tautomers.
• a “tautomer” refers to a molecule wherein a proton shift from one atom of a molecule to another atom of the same molecule is possible.
• the compounds presented herein exist as tautomers.
• a chemical equilibrium of the tautomers will exist. The exact ratio of the tautomers depends on several factors, including physical state, temperature, solvent, and pH.
• the compounds described herein possess one or more chiral centers and each center exists in the ( R )- configuration or (S)- configuration.
• the compounds described herein include all diastereomeric, enantiomeric, and epimeric forms as well as the corresponding mixtures thereof.
• mixtures of enantiomers and/or diastereoisomers, resulting from a single preparative step, combination, or interconversion are useful for the applications described herein.
• the compounds described herein are prepared as optically pure enantiomers by chiral chromatographic resolution of the racemic mixture.
• the compounds described herein are prepared as their individual stereoisomers by reacting a racemic mixture of the compound with an optically active resolving agent to form a pair of diastereoisomeric compounds, separating the diastereomers and recovering the optically pure enantiomers.
• dissociable complexes are preferred (e.g., crystalline diastereomeric salts).
• the diastereomers have distinct physical properties (e.g., melting points, boiling points, solubilities, reactivity, etc.) and are separated by taking advantage of these dissimilarities.
• the diastereomers are separated by chiral chromatography, or preferably, by separation/resolution techniques based upon differences in solubility.
• the optically pure enantiomer is then recovered, along with the resolving agent, by any practical means that would not result in racemization.
• positional isomer refers to structural isomers around a central ring, such as ortho-, meta-, and para- isomers around a benzene ring.
• compositions described herein include the use of crystalline forms (also known as polymorphs), or pharmaceutically acceptable salts of compounds described herein, as well as active metabolites of these compounds having the same type of activity.
• “Pharmaceutically acceptable salt” includes both acid and base addition salts.
• a pharmaceutically acceptable salt of any one of the compounds described herein is intended to encompass any and all pharmaceutically suitable salt forms.
• Preferred pharmaceutically acceptable salts of the compounds described herein are pharmaceutically acceptable acid addition salts and pharmaceutically acceptable base addition salts.
• “Pharmaceutically acceptable acid addition salt” refers to those salts which retain the biological effectiveness and properties of the free bases, which are not biologically or otherwise undesirable, and which are formed with inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid, hydroiodic acid, hydrofluoric acid, phosphorous acid, and the like. Also included are salts that are formed with organic acids such as aliphatic mono- and dicarboxylic acids, phenyl-substituted alkanoic acids, hydroxy alkanoic acids, alkanedioic acids, aromatic acids, aliphatic and aromatic sulfonic acids, etc.
• acetic acid trifluoroacetic acid, propionic acid, glycolic acid, pyruvic acid, oxalic acid, maleic acid, malonic acid, succinic acid, fumaric acid, tartaric acid, citric acid, benzoic acid, cinnamic acid, mandelic acid, methanesulfonic acid, ethanesulfonic acid, />-toluenesulfonic acid, salicylic acid, and the like.
• Exemplary salts thus include sulfates, pyrosulfates, bisulfates, sulfites, bisulfites, nitrates, phosphates, monohydrogenphosphates, dihydrogenphosphates, metaphosphates, pyrophosphates, chlorides, bromides, iodides, acetates, trifluoroacetates, propionates, caprylates, isobutyrates, oxalates, malonates, succinate suberates, sebacates, fumarates, maleates, mandelates, benzoates, chlorobenzoates, methylbenzoates, dinitrobenzoates, phthalates, benzenesulfonates, toluenesulfonates, phenylacetates, citrates, lactates, malates, tartrates, methanesulfonates, and the like.
• salts of amino acids such as arginates, gluconates, and galacturonates (see, for example, Berge S.M. et ah, “Pharmaceutical Salts,” Journal of Pharmaceutical Science, 66: 1- 19 (1997).
• Acid addition salts of basic compounds are prepared by contacting the free base forms with a sufficient amount of the desired acid to produce the salt.
• “Pharmaceutically acceptable base addition salt” refers to those salts that retain the biological effectiveness and properties of the free acids, which are not biologically or otherwise undesirable. These salts are prepared from addition of an inorganic base or an organic base to the free acid. In some embodiments, pharmaceutically acceptable base addition salts are formed with metals or amines, such as alkali and alkaline earth metals or organic amines. Salts derived from inorganic bases include, but are not limited to, sodium, potassium, lithium, ammonium, calcium, magnesium, iron, zinc, copper, manganese, aluminum salts and the like.
• Salts derived from organic bases include, but are not limited to, salts of primary, secondary, and tertiary amines, substituted amines including naturally occurring substituted amines, cyclic amines and basic ion exchange resins, for example, isopropylamine, trimethylamine, diethylamine, triethylamine, tripropylamine, ethanolamine, diethanolamine, 2-dimethylaminoethanol, 2-diethylaminoethanol, dicyclohexylamine, lysine, arginine, histidine, caffeine, procaine, N,N- dibenzylethylenediamine, chloroprocaine, hydrabamine, choline, betaine, ethylenediamine, ethylenedianiline, /V-methylglucamine, glucosamine, methylglucamine, theobromine, purines, piperazine, piperidine, /V-ethylpiperidine, polyamine resins and the like.
• prodrug is meant to indicate a compound that is, in some embodiments, converted under physiological conditions or by solvolysis to an active compound described herein.
• prodrug refers to a precursor of an active compound that is pharmaceutically acceptable.
• a prodrug is typically inactive when administered to a subject, but is converted in vivo to an active compound, for example, by hydrolysis.
• the prodrug compound often offers advantages of solubility, tissue compatibility or delayed release in a mammalian organism (see, e.g., Bundgard, H., Design of Prodrugs (1985), pp. 7-9, 21-24 (Elsevier, Amsterdam).
• prodrugs are also meant to include any covalently bonded carriers, which release the active compound in vivo when such prodrug is administered to a mammalian subject.
• Prodrugs of an active compound, as described herein are prepared by modifying functional groups present in the active compound in such a way that the modifications are cleaved, either in routine manipulation or in vivo , to the parent active compound.
• Prodrugs include compounds wherein a hydroxy, amino, carboxy, or mercapto group is bonded to any group that, when the prodrug of the active compound is administered to a mammalian subject, cleaves to form a free hydroxy, free amino, free carboxy, or free mercapto group, respectively.
• Examples of prodrugs include, but are not limited to, acetate, formate and benzoate derivatives of alcohol or amine functional groups in the active compounds and the like.
• solvates refers to a composition of matter that is the solvent addition form.
• solvates contain either stoichiometric or non- stoichiometric amounts of a solvent, and are formed during the process of making with pharmaceutically acceptable solvents such as water, ethanol, and the like.
• “Hydrates” are formed when the solvent is water, or “alcoholates” are formed when the solvent is alcohol.
• Solvates of compounds described herein are conveniently prepared or formed during the processes described herein. The compounds provided herein optionally exist in either unsolvated as well as solvated forms.
• the compounds disclosed herein are used in different enriched isotopic forms, e.g., enriched in the content of 2 H, 3 ⁇ 4, U C, 13 C and/or 14 C.
• the compound is deuterated in at least one position.
• deuterated forms can be made by the procedure described in U.S. Patent Nos. 5,846,514 and 6,334,997.
• deuteration can improve the metabolic stability and or efficacy, thus increasing the duration of action of drugs.
• structures depicted herein are intended to include compounds which differ only in the presence of one or more isotopically enriched atoms.
• compounds having the present structures except for the replacement of a hydrogen by a deuterium or tritium, or the replacement of a carbon by 13 C- or 14 C-enriched carbon are within the scope of the present disclosure.
• the compounds of the present disclosure optionally contain unnatural proportions of atomic isotopes at one or more atoms that constitute such compounds.
• the compounds may be labeled with isotopes, such as for example, deuterium ( 2 H), tritium (3 ⁇ 4), iodine-125 ( 125 I) or carbon-14 ( 14 C).
• isotopes such as for example, deuterium ( 2 H), tritium (3 ⁇ 4), iodine-125 ( 125 I) or carbon-14 ( 14 C).
• Isotopic substitution with 2 H, 3 ⁇ 4, U C, 13 C, 14 C, 15 C, 12 N, 13 N, 15 N, 16 N, 17 0, 18 0, 14 F, 15 F, 16 F, 17 F, 18 F, 33 S, 34 S, 35 S, 36 S, 35 C1, 37 C1, 79 Br, 81 Br, 125 I are all contemplated. All isotopic variations of the compounds of the present invention, whether radioactive or not, are encompassed within the scope of the present invention
• the compounds disclosed herein have some or all of the 3 ⁇ 4 atoms replaced with 2 H atoms.
• the methods of synthesis for deuterium-containing compounds are known in the art.
• deuterium substituted compounds are synthesized using various methods such as described in: Dean, Dennis C.; Editor. Recent Advances in the Synthesis and Applications of Radiolabeled Compounds for Drug Discovery and Development. [In: Curr., Pharm. Des., 2000; 6(10)] 2000, 110 pp; George W.; Varma, Rajender S. The Synthesis of Radiolabeled Compounds via Organometallic Intermediates, Tetrahedron, 1989, 45(21), 6601-21; and Evans, E. Anthony. Synthesis of radiolabeled compounds, J. Radioanal. Chem., 1981, 64(1-2), 9-32.
• the compounds described herein are labeled by other means, including, but not limited to, the use of chromophores or fluorescent moieties, bioluminescent labels, or chemiluminescent labels.
• the compounds described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof are substantially pure, in that it contains less than about 5%, or less than about 1%, or less than about 0.1%, of other organic small molecules, such as contaminating intermediates or by-products that are created, for example, in one or more of the steps of a synthesis method.
• nitropyridine compound A is reduced to bis-amino-pyridine compound B.
• Compound B is treated with thiophosgene to afford compound C.
• Compound C undergoes a substitution reaction with an appropriate alkyl bromide compound to afford compound D.
• aryl iodide D is treated under cross-coupling conditions, for example Suzuki cross coupling, to arrive at final compound E.
• a pharmaceutical composition comprising an AMPK activator described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof, and at least one pharmaceutically acceptable excipient.
• the AMPK activator is combined with a pharmaceutically suitable (or acceptable) carrier (also referred to herein as a pharmaceutically suitable (or acceptable) excipient, physiologically suitable (or acceptable) excipient, or physiologically suitable (or acceptable) carrier) selected on the basis of a chosen route of administration, e.g., oral administration, and standard pharmaceutical practice.
• aqueous and non-aqueous carriers examples include water, ethanol, polyols (such as glycerol, propylene glycol, polyethylene glycol, and the like), and suitable mixtures thereof, vegetable oils, such as olive oil, and injectable organic esters, such as ethyl oleate and cyclodextrins.
• polyols such as glycerol, propylene glycol, polyethylene glycol, and the like
• vegetable oils such as olive oil
• injectable organic esters such as ethyl oleate and cyclodextrins.
• Proper fluidity is maintained, for example, by the use of coating materials, such as lecithin, by the maintenance of the required particle size in the case of dispersions, and by the use of surfactants.
• a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is administered in combination with one or more anti-inflammatory agents.
• anti-inflammatory agents include, but are not limited to: aminosalicylates such as balsalazide, mesalamine, olsalazine, and sulfalazine; corticosteroids such as budesonide, prednisone, prednisolone, methylprednisolone, dexamethasone, and betamethasone; anti-TNF alpha agents such as infliximab, adalimumab, certolizumab pegol, golimumab, and PRX-106; anti-IL-12 and/or 23 agents such as ustekinumab, guse
• a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is administered in combination with a aminosalicylate, a corticosteroid, an anti-TNF alpha agent, an anti-IL-12 and/or 23 agent, an anti-integrin agent, a JAK inhibitor, a S1P1R modulator, a salicylate, a COX inhibitor, a COX-2 specific inhibitor, an interleukin-22 (IL-22) agent, or a combination thereof.
• a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is administered in combination with one or more agents that improve gastrointestinal barrier function.
• agents that improve gastrointestinal barrier function to be used in combination with a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof include, but are not limited to: HIF-PH inhibitors such as DS-1093, TRC-160334, and GB-004; MC1R agonists such as PL-8177; EZH2 inhibitors such as IMU-856; and DPP -4 inhibitors such as sitagliptin, vildagliptin, saxagliptin, linagliptin, gemigliptin, teneligliptin, alogliptin, trelagliptin, omarigliptin, evogliptin, gosogliptin, and
• a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is administered in combination with a hypoxia-inducible factor-prolyl hydroxylase (HIF-PH) inhibitor, a melanocortin-1 receptor (MC1R) agonist, an enhancer of zeste homolog 2 (EZH2) inhibitor, or combinations therof.
• HIF-PH hypoxia-inducible factor-prolyl hydroxylase
• M1R melanocortin-1 receptor
• EZH2 enhancer of zeste homolog 2
• a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is administered in combination with a glucagon-like peptide (GLP)-l agonist, a GLP-2 agonist, a GLP-1/2 co-agonist, a peroxisome proliferator-activator receptor (PPAR) agonist, a Farsnenoid X receptor (FXR) agonist, a TGR5 agonist, a GPR40 agonist, a GPR119 agonist, an SSTR5 antagonist, an SSTR5 inverse agonist, an acetyl-CoA carboxylase (ACC) inhibitor, a stearoyl-CoA desaturase 1 (SCD-1) inhibitor, a dipeptidyl peptidase 4 (DPP-4) inhibitor, or combinations thereof.
• the pharmaceutical composition comprises one or more anti-diabetic agents.
• the pharmaceutical composition comprises one or more
• Examples of a GLP-1 agonist to be used in combination with a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof include: exenatide, liraglutide, taspoglutide, lixisenatide, albiglutide, dulaglutide, semaglutide, OWL833 and ORMD 0901.
• Examples of a GLP-2 agonist to be used in combination with a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof include: tedaglutide, glepaglutide (ZP1848), elsiglutide (ZP1846), apraglutide (FE 203799), HM-15912, NB-1002, GX-G8, PE-0503, and SAN-134, and those described in WO-2011050174, WO-
• Examples of a GLP-1/2 co-agonist to be used in combination with a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof, include ZP-GG-72 and those described in WO-2018104561, WO-2018104558, WO- 2018103868, WO-2018104560, WO-2018104559, WO-2018009778, WO-2016066818, and WO-2014096440..
• Examples of a PPAR agonist to be used in combination with a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof include: elafibranor (GFT505), lanifibranor, pioglitazone, rosiglitazone, saroglitazar, seladelpar, and GW501516.
• Examples of a FXR agonist to be used in combination with a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof, include: obeticholic acid, NGM-282, EYP001, GS-9674, tropifexor (LJN452), and LMB-763.
• Examples of a TGR5 agonist to be used in combination with a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof include: INT-777, XL-475, SRX-1374, RDX-8940, RDX-98940, SB-756050, and those disclosed in WO-2008091540, WO-2010059853, WO-2011071565, WO-2018005801, WO-2010014739, WO-2018005794, WO-2016054208, WO-2015160772, WO-2013096771, WO-2008067222, WO-2008067219, WO-2009026241, WO-2010016846, WO-2012082947, WO-2012149236, WO-2008097976, WO-2016205475, WO-2015183794, WO-2013054338, WO-2010059859, WO-2010014836, WO-20
• Examples of a GPR40 agonist to be used in combination with a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof include: fasiglifam, MR-1704, SCO-267, SHR-0534, HXP-0057-SS, LY-2922470, P-11187, JTT-851, ASP-4178, AMG-837, ID-11014A, HD-C715, CNX-011-67, JNJ-076, TU-5113, HD-6277, MK-8666, LY-2881835, CPL-207-280, ZYDG-2, and those described in US-07750048, WO- 2005051890, WO-2005095338, WO-2006011615, WO-2006083612, WO-2006083781, WO- 2007088857, WO-2007123225, WO-2007136572, WO-2008054674, WO-20080546
• Examples of a GPR119 agonist to be used in combination with a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof include: DS-8500a, HD-2355, LC34AD3, PSN-491, HM-47000, PSN-821, MBX-2982, GSK- 1292263, APD597, DA-1241, and those described in WO-2009141238, WO-2010008739, WO-2011008663, WO-2010013849, WO-2012046792, WO-2012117996, WO-2010128414, WO-2011025006, WO-2012046249, WO-2009106565, WO-2011147951, WO-2011127106, WO-2012025811, WO-2011138427, WO-2011140161, WO-2011061679, WO-2017175066, WO-2017175068, WO-2015080446, WO-
• Examples of a SSTR5 antagonist or inverse agonist to be used in combination with a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof include those described in: WO-03104816, WO-2009050309, WO- 2015052910, WO-2011146324, WO-2006128803, WO-2010056717, WO-2012024183, and WO-2016205032.
• Examples of an ACC inhibitor to be used in combination with a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof, include: firsocostat, GS-834356, and PF-05221304.
• Examples of a SCD-1 inhibitor to be used in combination with a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof, include aramchol.
• Examples of a DPP-4 inhibitor to be used in combination with a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof include: sitagliptin, vildagliptin, saxagliptin, linagliptin, gemigliptin, teneligliptin, alogliptin, trelagliptin, omarigliptin, evogliptin, gosogliptin, and dutogliptin.
• anti-diabetic agents examples include: GLP-1 receptor agonists such as exenatide, liraglutide, taspoglutide, lixisenatide, albiglutide, dulaglutide,semaglutide, OWL833 and ORMD 0901; SGLT2 inhibitors such as dapagliflozin, canagliflozin, empagliflozin, ertugliflozin, ipragliflozin, luseogliflozin, remogliflozin, sergliflozin, sotagliflozin, and tofogliflozin; biguinides such as metformin; insulin and insulin analogs.
• GLP-1 receptor agonists such as exenatide, liraglutide, taspoglutide, lixisenatide, albiglutide, dulaglutide,semaglutide, OWL833 and ORMD 0901
• SGLT2 inhibitors
• anti-obesity agents examples include: GLP-1 receptor agonists such as liraglutide, semaglutide; SGLT1/2 inhibitors such as LIK066, pramlintide and other amylin analogs such as AM-833, AC2307, and BI 473494; PYY analogs such as NN-9747, NN-9748, AC-162352, AC-163954, GT-001, GT-002, GT-003, and RHS-08; GIP receptor agonists such as APD-668 and APD-597; GLP-l/GIP co agonists such as tirzepatide (LY329176), BHM-089, LBT-6030, CT-868, SCO-094, NNC-0090- 2746, RG-7685, NN-9709, and SAR-438335; GLP-
• agents for nutritional disorders to be used in combination with a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof, include: GLP-2 receptor agonists such as tedaglutide, glepaglutide (ZP1848), elsiglutide (ZP1846), apraglutide (FE 203799), HM-15912, NB-1002, GX-G8, PE-0503, SAN- 134, and those described in WO-2011050174, WO-2012028602, WO-2013164484, WO- 2019040399, WO-2018142363, WO-2019090209, WO-2006117565, WO-2019086559, WO- 2017002786, WO-2010042145, WO-2008056155, WO-2007067828, WO-2018229252, WO- 2013040093, WO-2002066511, WO-2005067368, WO-200973
• the therapeutic effectiveness of one of the compounds described herein is enhanced by administration of an adjuvant (z.e., by itself the adjuvant has minimal therapeutic benefit, but in combination with another therapeutic agent, the overall therapeutic benefit to the patient is enhanced).
• an adjuvant z.e., by itself the adjuvant has minimal therapeutic benefit, but in combination with another therapeutic agent, the overall therapeutic benefit to the patient is enhanced.
• the benefit experienced by a patient is increased by administering one of the compounds described herein with another agent (which also includes a therapeutic regimen) that also has therapeutic benefit.
• a compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof is co-administered with one or more additional therapeutic agents, wherein the compound described herein, or a pharmaceutically acceptable salt, solvate, stereoisomer, or prodrug thereof, and the additional therapeutic agent(s) modulate different aspects of the disease, disorder or condition being treated, thereby providing a greater overall benefit than administration of either therapeutic agent alone.
• the additional therapeutic agent(s) is a glucagon-like peptide (GLP)-l agonist, a GLP-2 agonist, a GLP-1/2 co-agonist, a peroxisome proliferator-activator receptor (PPAR) agonist, a Farsnenoid X receptor (FXR) agonist, a stearoyl-CoA desaturase 1 (SCD-1) inhibitor, a dipeptidyl peptidase 4 (DPP -4) inhibitor, or a combination thereof.
• the second therapeutic agent is an anti-inflammatory agent.
• the additional therapeutic agent(s) is an aminosalicylate, a corticosteroid, an anti-TNF alpha agent, an anti-IL- 12 and/or 23 agent, an anti-integrin agent, a JAK inhibitor, a S1P1R modulator, a salicylate, a COX inhibitor, a COX-2 specific inhibitor, an IL-22 agent, or a combination thereof.
• the second therapeutic agent is an agent that improves gastrointestinal barrier function.
• the additional therapeutic agent(s) is a HIF-PH inhibitor, an MC1R agonist, an EZH2 inhibitor, or a combination therof.
• the overall benefit experienced by the patient is additive of the two (or more) therapeutic agents. In other embodiments, the patient experiences a synergistic benefit of the two (or more) therapeutic agents.
• the multiple therapeutic agents are administered in any order or even simultaneously. If administration is simultaneous, the multiple therapeutic agents are, by way of example only, provided in a single, unified form, or in multiple forms (e.g., as a single pill or as two separate pills).
• the compounds described herein, or pharmaceutically acceptable salts, solvates, stereoisomers, or prodrugs thereof, as well as combination therapies, are administered before, during or after the occurrence of a disease or condition, and the timing of administering the composition containing a compound varies.
• the compounds described herein are used as a prophylactic and are administered continuously to subjects with a propensity to develop conditions or diseases in order to prevent the occurrence of the disease or condition.
• the compounds and compositions are administered to a subject during or as soon as possible after the onset of the symptoms.
• a compound described herein is administered as soon as is practicable after the onset of a disease or condition is detected or suspected, and for a length of time necessary for the treatment of the disease.
• a compound described herein, or a pharmaceutically acceptable salt thereof is administered in combination with anti-inflammatory agent, anti-cancer agent, immunosuppressive agent, steroid, non-steroidal anti-inflammatory agent, antihistamine, analgesic, hormone blocking therapy, radiation therapy, monoclonal antibodies, or combinations thereof.
• Step 3 5-chloro-6-iodopyridine-2, 3-diamine (1-3): To a solution 1-2 of (60 g, 0.20 mol, 1 eq) in EtOH (300 mL) was added SnCh ⁇ LhO (0.18 kg, 0.80 mol, 4 eq). The mixture was stirred at 70 °C for 0.5 hour. To the mixture was added water (450 mL) and KF (0.18 kg). The mixture was stirred for 0.5 h, then extracted with ethyl acetate (100 mL x2). The organic phase was washed with saturated brine (50 mL c 2), then concentrated in vacuo to give crude product.
• Step 4 6-chloro-5-iodo-l//-imidazo[4,5-6]pyridine-2(3FF)-thione (1-4): To a solution of 1-3 (20 g, 74 mmol, 1 eq) and DMAP (26 g, 0.22 mol, 2.9 eq) in THF (400 mL) was added dropwise thiocarbonyl dichloride (12 g, 0.10 mol, 8.0 mL, 1.4 eq) at 0 °C under N2. The mixture was stirred at room temperature for 24 hours. To the reaction mixture was added ethyl acetate (2000 mL) and 2 N HC1 (200 mL).
• Step 5 methyl 2-((6-chloro-5-iodo-l//-imidazo[4,5-6]pyridin-2-yl)thio)acetate (1-5): To a solution of 1-4 (2.0 g, 6.4 mmol, 1 eq) in THF (40 mL) was added CS 2 CO 3 (4.2 g, 13 mmol, 2 eq) and methyl 2-bromoacetate (0.49 g, 3.2 mmol, 0.5 eq) at 0 °C. The reaction mixture was stirred at room temperature for 24 hours. The reaction mixture was quenched by water (100 mL) and extracted with ethyl acetate (80 mL c 3).
• Step 6 4'-bromo-[l,l'-biphenyl]-2-ol (1-6): To a solution of l-bromo-4- iodobenzene (10 g, 35 mmol, 1 eq) and (2-hydroxyphenyl)boronic acid (5.4 g, 39 mmol, 1.1 eq) in H 2 O (50 mL) and dioxane (150 mL) was added K 3 PO 4 (11 g, 53 mmol, 1.5 eq), Pd(PPh 3 ) 4 (1.0 g, 0.88 mmol, 0.025 eq) under N2. The reaction mixture was stirred at 100 °C for 16 hours.
• Step 7 4'-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)-[l,l'-biphenyl]-2-ol (1- 7): To a solution of 1-6 (3.5 g, 14 mmol, 1 eq) and 4,4,4',4',5,5,5',5'-octamethyl-2,2'-bi(l,3,2- dioxaborolane) (3.9 g, 15 mmol, 1.1 eq) in DME (35 mL) was added Pd(dppf)Ch.CH2Cl2 (0.29 g, 0.35 mmol, 0.025 eq) and KOAc (4.1 g, 42 mmol, 3 eq) under N2.
• Step 8 2-((6-chloro-5-(2'-hydroxy-[l,l'-biphenyl]-4-yl)-l/ -imidazo[4,5- 6]pyridin-2-yl)thio)acetic acid (Compound 1): To a solution of methyl 1-5 (0.25 g, 0.65 mmol, 1 eq) and 1-7 (0.39 g, 1.3 mmol, 2 eq) in dioxane (10 mL) and H2O (2 mL) was added K2CO3 (0.27 g, 2.0 mmol, 3 eq) and Pd(PPh3)4 (75 mg, 65 pmol, 0.1 eq) under N2.
• Step 1 ethyl (((6-chloro-5-iodo-l//-imidazo[4,5-6]pyridin-2- yl)thio)methyl)(methyl)phosphinate (2-1): To a solution of 1-4 (0.50 g, 1.6 mmol) in DMF (10 mL) was added CS2CO3 (1.1 g, 3.2 mmol) and ethyl (chloromethyl)(methyl)phosphinate (0. 20 g, 1.3 mmol). The mixture was stirred at 25 °C for 12 hours.
• Step 2 ethyl (((6-chloro-5-iodo-l-((2-(trimethylsilyl)ethoxy)methyl)-l//- imidazo [4,5-b] pyridin-2-yl)thio)methyl)(methyl)phosphinate (2-2): To a solution of 2-1 (0.80 g, 1.9 mmol) in THF (16 mL) was added TEA (0.38 g, 3.7 mmol, 0.52 mL), then SEM-C1 (0.37 g, 2.2 mmol, 0.39 mL) was added at 0 °C. The mixture was stirred at 25 °C for 0.5 hours.
• Step 3 ethyl (((6-chloro-5-(2'-hydroxy-[l,l'-biphenyl]-4-yl)-l-((2- (trimethylsilyl)ethoxy)methyl)-l//-imidazo[4,5-/>
• Step 4 (((6-chloro-5-(2'-hydroxy-[l,l'-biphenyl]-4-yl)-l -imidazo[4,5- 6]pyridin-2-yl)thio)methyl)(methyl)phosphinic acid (Compound 2 FA Salt): A solution of 2- 3 (0.16 g, 0.26 mmol) in TFA (0.8 mL) was stirred at 25 °C for 1 hour. The reaction mixture was concentrated under reduced pressure at 25 °C to give a residue.
• Step 1 diethyl (((6-chloro-5-iodo-l//-imidazo [4,5-6] pyridin-2- yl)thio)methyl)phosphonate (3-1): To a solution of 1-4 (1.0 g, 3.2 mmol) in DMF (20 mL) was added CS2CO3 (2.1 g, 6.4 mmol) and diethyl (bromomethyl)phosphonate (0.59 g, 2.6 mmol) under N2. The mixture was stirred at 25 °C for 2 hours.
• Step 2 diethyl (((6-chloro-5-iodo-l-((2-(trimethylsilyl)ethoxy)methyl)-l//- imidazo[4,5-b]pyridin-2-yl)thio)methyl)phosphonate (3-2): To a solution of 3-1 (1.6 g, 3.5 mmol) and TEA (0.53 g, 5.2 mmol) in THF (32 mL) was added SEM-C1 (0.58 g, 3.5 mmol) at 0 °C under nitrogen. The reaction mixture was stirred at 20 °C for 0.5 hour.
• Step 3 diethyl (((6-chloro-5-(2'-hydroxy-[l,l'-biphenyl]-4-yl)-l-((2- (trimethylsilyl)ethoxy)methyl)-l//-imidazo[4,5-6]pyridin-2-yl)thio)methyl)phosphonate (3-
• Step 4 diethyl (((6-chloro-5-(2'-hydroxy-[l,l'-biphenyl]-4-yl)-l//-imidazo[4,5- 6]pyridin-2-yl)thio)methyl)phosphonate (3-4): A solution of 3-3 (0.20 g, 0.32 mmol) in TFA (1 mL) and DCM (5 mL) was stirred at 25 °C for 1 hour. The reaction mixture was quenched with saturated aqueous NaHCCh and the pH was adjusted to ⁇ 2 with 1 N aqueous HC1.
• Step 5 ethyl hydrogen (((6-chloro-5-(2'-hydroxy-[l,l'-biphenyl]-4-yl)-l - imidazo [4,5-6] pyridin-2-yl)thio)methyl)phosphonate (Compound 3 FA Salt): To a solution of 3-4 (30 mg, 60 miho ⁇ ) in H 2 0 (0.3 mL), MeOH (0.3 mL) and THF (0.3 mL) was added LiOH » H 2 0 (8.3 mg, 0.20 mmol). The mixture was stirred at 25 °C for 12 hours. The reaction mixture was concentrated under reduced pressure to give a residue.
• Step 1 tert- butyl 2-((6-chloro-5-iodo-l//-imidazo[4,5-6]pyridin-2-yl)thio)acetate (5-1): To a solution of 1-4 (7.0 g, 22 mmol, 1 eq) in THF (100 mL) was added /ert-butyl 2- bromoacetate (2.6 g, 13 mmol, 0.6 eq) and CS2CO3 (15 g, 45 mmol, 2 eq). The mixture was stirred at 25 °C for 1 hour. The mixture was diluted with water (150 mL) and extracted with ethyl acetate (300 mL c 2).
• Step 2 tert- butyl 2-((6-chloro-5-iodo-l-((2-(trimethylsilyl)ethoxy)methyl)-l//- imidazo [4,5-6] pyridin-2-yl)thio)acetate (5-2): To a solution of 5-1 (3.2 g, 6.8 mmol, 1 eq) in THF (40 mL) was added TEA (1.4 g, 14 mmol, 2 eq). Then SEM-C1 (1.4 g, 8.1 mmol, 1.2 eq) was added at 0 °C. The mixture was stirred at 25 °C for 0.5 hour.
• Step 3 tert- butyl 2-((6-chloro-5-(2'-hydroxy-[l,l'-biphenyl]-4-yl)-l-((2- (trimethylsilyl)ethoxy)methyl)-l//-imidazo[4,5-6
• Step 4 tert- butyl 2-((6-chloro-5-(2'-(sulfooxy)-[l,l'-biphenyl]-4-yl)-l-((2- (trimethylsilyl)ethoxy)methyl)-l//-imidazo[4,5-6]pyridin-2-yl)thio)acetate (5-4): To a solution of 5-3 (0.3 g, 0.50 mmol, 1 eq) in DCM (4 mL) and pyridine (6 mL) was added SCh'pyridine (0.24 g, 1.5 mmol, 3 eq). The mixture was stirred at 50 °C for 24 hours.
• Step 5 2-((6-chloro-5-(2'-(sulfooxy)-[l,l'-biphenyl]-4-yl)-l//-imidazo[4,5-6] pyridin-2-yl)thio)acetic acid (Compound 5): A solution of 5-4 (0.12 g, 0.18 mmol, 1 eq) in TFA (0.1 mL) and DCM (1 mL) was stirred at 25 °C for 9 hours. The mixture was adjusted to pH 6 with saturated aqueous NaHCCh solution and then concentrated in vacuo to give a residue.
• Step 1 l-iodo-3-(methoxymethoxy)benzene (6-1): To a solution of 3-iodophenol (10 g, 45 mmol, 1 eq) and K 2 CO 3 (6.9 g, 50 mmol, 1.1 eq) in acetone (100 mL) was added MOMCI (5.5 g, 68 mmol, 5.2 mL, 1.5 eq) at 0 °C. The mixture was stirred at 20 °C for 12 hrs. The mixture was quenched with ice water (130 mL) and extracted with EtOAc (80 mL x 3). The organic layers were washed with brine (130 mL), dried over anhydrous Na 2 S0 4 , and concentrated in vacuo. The residue was purified by flash silica gel chromatography (ISCO®;
• Step 2 l-(3,3-dimethylbut-l-yn-l-yl)-3-(methoxymethoxy)benzene (6-2): To a solution of 6-1 (1.0 g, 3.8 mmol, 1.25 eq), Cul (58 mg, 0.30 mmol, 0.1 eq), Pd(PPh3)Ch (0.21 g, 0.30 mmol, 0.1 eq) and TEA (0.46 g, 4.6 mmol, 1.5 eq) in THF (7 mL) was added 3,3- dimethylbut-l-yne (0.25 g, 3.0 mmol, 1 eq) in THF (2 mL).
• Step 3 l-(3,3-dimethylbutyl)-3-(methoxymethoxy)benzene (6-3): To a solution of 6-2 (0.65 g, 3.0 mmol, 1 eq) in MeOH (10 mL) was added 10% Pd/C (100 mg) under N2. The suspension was degassed under vacuum and purged with 3 ⁇ 4 several times. The mixture was stirred under 3 ⁇ 4 (15 psi) at 20 °C for 12 hours. The reaction mixture was filtered, and the filtrate was concentrated under vacuum to afford 6-3 (0.66 g) as a yellow oil.
• Step 4 l-bromo-4-(3,3-dimethylbutyl)-2-(methoxymethoxy)benzene (6-4): To a solution of 6-3 (0.66 g, 3.0 mmol, 1 eq) in MeCN (10 mL) was added NBS (0.53 g, 3.0 mmol, 1 eq) at -10 °C. The mixture was stirred at 0 °C for 2 hr. The reaction mixture was concentrated under vacuum.
• Step 5 2-(4'-(3,3-dimethylbutyl)-2'-(methoxymethoxy)-[l,l'-biphenyl]-4-yl)- 4,4,5,5-tetramethyl-l,3,2-dioxaborolane (6-5): Compound 6-4 (0.26 g, 0.86 mmol, 1 eq), 1,4- bis(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)benzene (0.31 g, 0.95 mmol, 1.1 eq), Pd(dppf)Ch (95 mg, 0.13 mmol, 0.15 eq) and K 2 CO 3 (0.36 g, 2.6 mmol, 3 eq) in DMF (3 mL) and H 2 O (0.3 mL) was heated to 110 °C for 2 hours under N2.
• reaction mixture was diluted with water (10 mL) and extracted with EA (15 mL x 3). The combined organic layers were washed with brine (20 mL), dried over Na 2 SC> 4 , filtered and concentrated under reduced pressure to afford 6-5 (0.40 g, crude) as a brown oil which was used for the next step directly.
• Step 6 tert-butyl 2-((6-chloro-5-(4'-(3,3-dimethylbutyl)-2'-(methoxymethoxy)- [l,l'-biphenyl]-4-yl)-lH-imidazo[4,5-b]pyridin-2-yl)thio)acetate (6-6): Compound 6-5 (0.40 g, 0.94 mmol, 1 eq), tert-butyl 2-((6-chloro-5-iodo-lH-imidazo[4,5-b]pyridin-2-yl)thio)acetate (0.40 g, 0.94 mmol, 1 eq), Pd(dppf)Cl 2 .CH2Cl 2 (0.12 g, 0.14 mmol, 0.15 eq) and K2CO3 (0.39 mg, 2.8 mmol, 3 eq) in DMF (5 mL) and H2O (0.5 mL
• Step 7 2-((6-chloro-5-(4'-(3,3-dimethylbutyl)-2'-hydroxy-[l,l'-biphenyl]-4-yl)- lH-imidazo[4,5-b]pyridin-2-yl)thio)acetic acid (Compound 6): A mixture of 6-6 (0.16 g,
• Step 1 (S)-l-(4-bromophenyl)pyrrolidin-3-ol (7-1): A mixture of (3S)-pyrrolidin- 3-ol (4.0 g, 46 mmol, 3.7 mL, 1 eq), l-bromo-4-iodo-benzene (6.5 g, 23 mmol, 0.5 eq), Cul (0.87 g, 4.6 mmol, 0.1 eq), and K3PO4 (9.8 g, 46 mmol, 1 eq) in 2-(dimethylamino)ethanol (15 mL) was degassed and purged with N2 3 times.
• Step 2 (S)-l-(4-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)phenyl)pyrrolidin- 3-ol (7-2): A mixture of 7-1 (3.0 g, 12 mmol, 1 eq), bis(pinacolato)diboron (3.6 g, 15 mmol, 1.2 eq), and KOAc (12 g, 0.12 mol, 10 eq) in dioxane (45 mL) was degassed and purged with N2 3 times. Then Pd(PPh3)Ch (0.43 g, 0.62 mmol, 0.05 eq) was added to the mixture.
• Step 3 (S)-2-((6-chloro-5-(4-(3-hydroxypyrrolidin-l-yl)phenyl)-lH-imidazo[4,5- b]pyridin-2-yl)thio)acetic acid (Compound 7): A mixture of 7-2 (0.20 g, 0.69 mmol, 1.5 eq), tert-butyl 2-((6-chloro-5-iodo- lH-imidazo[4,5-b]pyri din-2 -yl)thio)acetate (0.20 mg, 0.46 mmol,
• Example 8 2-((5-(4 , -(lH-l,2,4-triazol-l-yl)-[l,l'-biphenyl]-4-yl)-6-chloro-lH-imidazo[4,5- b]pyridin-2-yl)thio)acetic acid (Compound 8)
• Step 1 l-(4-bromophenyl)-lH-l, 2, 4-triazole (8-1): To a solution of lH-1, 2,4- triazole (1.0 g, 14 mmol, 1 eq) and l-bromo-4-iodo-benzene (5.1 g, 18 mmol, 1.25 eq) in DMF (50 mL) was added CS2CO3 (19 g, 58 mmol, 4 eq) and Cul (1.1 g, 5.8 mmol, 0.4 eq). The mixture was stirred at 120 °C for 12 hrs. The reaction mixture was diluted with water (20 mL) and extracted with EA (50 mL c 3).
• Step 2 l-(4'-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)-[l,r-biphenyl]-4-yl)- lH-1, 2, 4-triazole (8-2): To a solution of 8-1 (0.50 g, 2.2 mmol, 1 eq) and 1, 4-bis(4, 4,5,5- tetramethyl-l,3,2-dioxaborolan-2-yl)benzene (0.81 g, 2.4 mmol, 1.1 eq) in H 2 O (0.5 mL) and DMF (5 mL) was added Pd(dppf)Ch (0.24 g, 0.33 mmol, 0.15 eq) and K 2 CO 3 (0.93 g, 6.7 mmol, 3 eq).
• Step 3 tert-butyl 2-((6-chloro-5-iodo-lH-imidazo[4,5-b]pyridin-2-yl)thio)acetate (8-3): To a solution of 6-chloro-5-iodo-l,3-dihydro-2H-imidazo[4,5-b]pyridine-2-thione (2.0 g, 6.4 mmol, 1 eq) and tert-butyl 2-bromoacetate (1.3 g, 6.4 mmol, 1 eq) in DMF (20 mL) was added K 2 CO 3 (1.1 g, 7.7 mmol, 1.2 eq). The mixture was stirred at 25 °C for 1 hr.
• Step 4 tert-butyl 2-((6-chloro-5-iodo-l-((2-(trimethylsilyl)ethoxy)methyl)-lH- imidazo[4,5-b]pyridin-2-yl)thio)acetate (8-4): To a solution of 8-3 (2.5 g, 5.8 mmol, 1 eq) in THF (20 mL) was added SEM-C1 (1.5 g, 8.8 mmol, 1.6 mL, 1.5 eq) and TEA (0.89 g, 8.8 mmol, 1.2 mL, 1.5 eq) at 0 °C. The mixture was stirred at 25 °C for 12 hr.
• Step 5 tert-butyl 2-((5-(4'-(lH-l,2,4-triazol-l-yl)-[l,l'-biphenyl]-4-yl)-6-chloro- l-((2-(trimethylsilyl)ethoxy)methyl)-lH-imidazo[4,5-b]pyridin-2-yl)thio)acetate (8-5): To a solution of 8-2 (0.10 g, 0.29 mmol, 1 eq) and 8-4 (0.16 mg, 0.29 mmol, 1 eq) in H2O (0.5 mL) and dioxane (3 mL) was added Pd(dppf)Cl2*CH2Cb (35 mg, 43 umol, 0.15 eq) and K2CO3 (0.15 g, 1.1 mmol, 3.7 eq).
• Step 6 2-((5-(4 , -(lH-l,2,4-triazol-l-yl)-[l,l'-biphenyl]-4-yl)-6-chloro-lH- imidazo[4,5-b]pyridin-2-yl)thio)acetic acid (Compound 8): To a solution of 8-5 (80 mg, 0.12 umol, 1 eq) in DCM (0.8 mL) was added TFA (0.8 mL). The mixture was stirred at 25 °C for 2 hrs. The mixture was concentrated in vacuo to give a residue.
• Step 1 l-bromo-4-iodo-2-(methoxymethoxy)benzene (9-1): To a solution of 2- bromo-5-iodo-phenol (2.0 g, 6.7 mmol, 1 eq) in DMF (20 mL) was added chloro(methoxy)methane (1.1 g, 13 mmol, 1.0 mL, 2 eq) and K2CO3 (1.9 g, 13 mmol, 2 eq). The mixture was stirred at 25 °C for 12 hrs. The reaction solution was quenched with saturated aqueous INfeCCh solution (40 mL) at 0 °C and extracted with EA (30 mL x 2). The combined organic layers were concentrated under reduced pressure to give 9-1 (2 g) as yellow oil.
• Step 2 2-bromo-5-(lH-l,2,4-triazol-l-yl)phenol (9-2): To a solution of 9-1 (0.85 g, 2.5 mmol, 1 eq) and 1H- 1,2, 4-triazole (0.21 g, 3.0 mmol, 1.2 eq) in DMSO (0.85 mL) was added K3PO4 (1.1 g, 5.0 mmol, 2 eq), N,N'-bis(2-furylmethyl)oxamide (12 mg, 50 umol, 0.02 eq) and CU2O (7.1 mg, 50 umol, 0.02 eq). The mixture was stirred at 120 °C for 12 hrs.
• Step 3 l-(4-bromo-3-(methoxymethoxy)phenyl)-lH-l, 2, 4-triazole (9-3): To a solution of 9-2 (0.30 g, 1.3 mmol, 1 eq) in DMF (3 mL) was added chloro(methoxy)methane (0.11 g, 1.4 mmol, 1.1 eq) and K2CO3 (0.35 g, 2.5 mmol, 2 eq). The mixture was stirred at 25 °C for 2 hrs. The reaction solution was quenched with saturated aqueous INfeCCh solution (10 mL) at 0 °C and extracted with EA (10 mL c 2).
• Step 4 l-(2-(methoxymethoxy)-4'-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)- [l,l'-biphenyl]-4-yl)-lH-l, 2, 4-triazole (9-4): To a solution of 9-3 (0.25 g, 0.88 mmol, 1 eq) and 4,4,5,5-tetramethyl-2-[4-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)phenyl]-l,3,2- dioxaborolane (0.52 g, 1.6 mmol, 1.8 eq) in dioxane (4.5 mL) and H2O (1.5 mL) was added PCy3
• Step 5 tert-butyl 2-((6-chloro-5-(2'-(methoxymethoxy)-4'-(lH-l,2,4-triazol-l- yl)-[l,l'-biphenyl]-4-yl)-l-((2-(trimethylsilyl)ethoxy)methyl)-lH-imidazo[4,5-b]pyridin-2- yl)thio)acetate (9-5): To a solution of 9-4 (0.15 g, 0.37 mmol, 1 eq) and tert-butyl 2-[6-chloro- 5-iodo-l-(2-trimethylsilylethoxymethyl)imidazo[4,5-b]pyridin-2-yl]sulfanylacetate (0.27 g, 0.48 mmol, 1.3 eq) in dioxane (1.2 mL) and H2O (0.2 mL) was added NaiCCb (0.
• Step 6 2-((6-chloro-5-(2 , -hydroxy-4 , -(lH-l,2,4-triazol-l-yl)-[l,l , -biphenyl]-4- yl)-lH-imidazo[4,5-b]pyridin-2-yl)thio)acetic acid (Compound 9): A solution of 9-5 (60 mg,
• Example A-l In Vitro pAMPKl Kinase Activation Assay
• Example A-2 Pharmacokinetic Assays Oral Bioavailability
• Compounds were tested for pharmacokinetics in C57BL/6 mice.
• Compounds 2, 4, and A1 were dosed IV at 1 mg/kg as a formulation of 0.5 mg/mL in 5% DMSO + 30% PEG400+ 65% water and PO at 30 mg/kg as a formulation of 6 mg/mL in 0.25% MC + 5% Tween 80 + 0.02% SDS.
• Compound 1 was dosed IV at 1 mg/kg as a formulation of 0.50 mg/mL in 5% DMSO + 30% PEG400 + 65% water and PO at 30 mg/kg as a formulation of 6 mg/mL in 0.5% MC + 0.5% Tween 80.
• Compounds 1, 2, 4 and A1 were shown to have oral bioavailability of less than 1%.
• Compound 1 Following IV administration, Compound 1 has a significantly reduced volume of distribution (0.7 L/kg) compared to Compound A1 (2.4 L/kg), as well as a shorter half-life (1.9h for 1, 4.8h for Al). This indicates that a smaller portion of the absorbed dose makes it into tissues and that any absorbed dose is eliminated more quickly, respectively, for Compound 1 when compared to Compound Al.
• Compound 1 has a greatly reduced risk of causing systemic AMPK activation compared to Compound Al.
• a time course for colonic exposure to Compound Al was determined in mouse following a single bolus oral (PO) gavage of 30 mg/kg of Al.
• Whole colon from cecum to rectum was collected at 2, 4, 6, and 8 hours post-dose and snap frozen. Tissue was homogenized and the concentration of Al was measured.
• Example A-3 BCRP Substrate Assessment in the Caco-2 Cell Monolayer
• Caco-2 cells purchased from ATCC were seeded onto polyethylene membranes (PET) in 96-well BD Insert plates at 1 x 10 5 cells/ cm 2 , and refreshed medium every 4-5 days until to the 21 st to 28 th day for confluent cell monolayer formation.
• the transport buffer in the study was HBSS with 10 mM HEPES at pH 7.40 ⁇ 0.05.
• Compounds were tested at 2 mM in the presence or absence of 30 pM novobiocin bi-directionally in duplicate.
• E3S was tested at 5 pM in the presence or absence of 30 pM novobiocin bi-directionally in duplicate, while nadolol and metoprolol were tested at 2 pM in the absence of novobiocin in A to B direction in duplicate.
• Final DMSO concentration was adjusted to less than 1%.
• the plate was incubated for 2 hours in CO2 incubator at 37 ⁇ 1 °C, with 5% CO2 at saturated humidity without shaking. All samples were mixed with acetonitrile containing internal standard and were centrifuged at 4000 rpm for 10 min. Subsequently, 100 pL supernatant solution was diluted with 100 pL distilled water for LC/MS/MS analysis. Concentrations of test and control compounds in starting solution, donor solution, and receiver solution were quantified by LC/MS/MS, using peak area ratio of analyte/intemal standard.
• Example A-4 In vitro MDCK Epithelial Permeability Assay [00287] In order to quantitatively measure the effects of transporter substrate AMPK activators on epithelial permeability in vitro , standard calcium switch protocols from the literature were adapted for use with Madin-Darby Canine Kidney (MDCK) cells grown on Coming Transwell inserts for use with fluorescein isothiocyanate-dextran, average molecular weight 4 kDa (FITC-dextran). FITC-dextran is a large, metabolically inert sugar molecule that is not readily transferrable across healthy epithelial barriers in vitro or in vivo. This compound has been tagged with a fluorophore to easily track its movement.
• MDCK Madin-Darby Canine Kidney
• FITC-dextran average molecular weight 4 kDa
• Example A-5 Effects of AMPK Activators on Tight Junction (TJ) Architecture
• MDCK cells were grown to confluence on Transwell inserts in standard growth media. The inserts were then washed and incubated in low calcium medium (LCM) with vehicle or compound (10 pM) and fixed with paraformaldehyde. Fixed cells were stained for tight junction (TJ) component proteins using commercially available antibodies and visualized on a confocal microscope (Model DM6, Leica Microsystems).
• Example A-6 Effects of AMPK Activators on Intestinal Barrier Function in a Mouse in vivo Acute Dextran Sulfate Sodium (DSS) Colitis Model
• Vehicle or a dose of Compound A1 or Compound 1 was administered once daily by oral gavage to C57B1/6 mice. After 3 days of pre-dosing, dextran sulfate sodium (DSS) was simultaneously administered at 2.5-3% in drinking water, and appropriate water-only controls were included.
• DSS dextran sulfate sodium
• Example A-7 Effects of AMPK Activators on Diarrhea in a Mouse in vivo Chemotherapy- induced Intestinal Injury Model
• the diarrhea was scored 0-3 as follows: 0 - normal consistency (black and solid), 1 - soft (black and a bit lighter/yellow), 2- loosely shaped stool (yellowish and somewhat watery), 3 - extreme diarrhea (very watery).
• Day 5 and day 6 diarrhea scores following administration of certain compounds were lower than vehicle control mice.
• Compound A1 at a dose of 30 mg/kg QD showed only modest improvement to diarrhea score on Day 6 and worsened the diarrhea score on Day5, whereas Compound 1 signifantly improved diarrhea score on both Day 5 and Day 6 at the same dose.
• Compound 1 was efficacious at doses as low as 3 mg/kg BID (6 mg/kg total daily dose). This indicates that Compound 1 has greater efficacy than Compound A1 at a much lower dose, translating into significantly lower doses for efficacy in the clinic.
• Example A-8 Effects of AMPK Activators on the Level of Acetyl CoA Carboxylase (ACC) Phosphorylation in Mouse Muscle
• Systemic AMPK target engagement in vivo can be assessed by measuring the site- specific phosphorylation of a direct AMPK substrate, acetyl-coenzyme A carboxylase (ACC), in a well perfused tissue such as muscle.
• ACC acetyl-coenzyme A carboxylase
• mice were administered vehicle or compound once daily for 5 days. On the final day of dosing (day 1 for acute assessment, day 5 for sub-chronic assessment), mice were euthanized by cervical dislocation five hours post dose and samples of skeletal muscle (gastrocnemius) were removed and snap frozen in liquid nitrogen.
• vehicle 0.25% methyl cellulose, 5% Tween 80, 0.02% sodium dodecyl sulfate (SDS) in Hanks’ Buffered Salt Solution with Ca 2+ and Mg 2+ .
• SDS sodium dodecyl sulfate
• Frozen muscle tissues were homogenized. Homogenates were analyzed for protein concentration and equal amounts of protein were assayed for total and phosphorylated ACC (p- ACC) levels using Meso Scale Discovery’s Multi-array assay kit. The ratio of p-ACC/total ACC was determined for each sample.
• Results for exemplary compounds are shown in Table 5.
• a systemically active compound e.g. MK-8722
• the ratio of pACC/total ACC following administration of 30 mg/kg was significantly higher than vehicle control mice.
• the ratio of pACC/total ACC following administration of 30 mg/kg of Compound 1 was not significantly changed from vehicle control mice. This indicates that unlike MK-8722, Compound 1 is gut targeted and does not engage AMPK in the periphery at doses higher than those required for efficacy.

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