WO2023006893A1 - Compounds for the treatment of pain, in particular neuropathic pain, and/or other diseases or disorders that are associated with at2r and/or at2r mediated signaling - Google Patents

Compounds for the treatment of pain, in particular neuropathic pain, and/or other diseases or disorders that are associated with at2r and/or at2r mediated signaling Download PDF

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WO2023006893A1
WO2023006893A1 PCT/EP2022/071231 EP2022071231W WO2023006893A1 WO 2023006893 A1 WO2023006893 A1 WO 2023006893A1 EP 2022071231 W EP2022071231 W EP 2022071231W WO 2023006893 A1 WO2023006893 A1 WO 2023006893A1
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Ann De Blieck
Christel Jeanne Marie Menet
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Confo Therapeutics NV
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Confo Therapeutics NV
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Priority to CR20240041A priority patent/CR20240041A/es
Priority to AU2022318349A priority patent/AU2022318349B2/en
Priority to US18/293,160 priority patent/US20240368133A1/en
Priority to KR1020247006999A priority patent/KR20240063881A/ko
Priority to MX2024001155A priority patent/MX2024001155A/es
Priority to EP22761413.8A priority patent/EP4377307A1/en
Priority to JP2024505546A priority patent/JP7637827B2/ja
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Priority to DO2024000017A priority patent/DOP2024000017A/es
Priority to CONC2024/0000880A priority patent/CO2024000880A2/es
Priority to JOJO/P/2024/0019A priority patent/JOP20240019A1/ar
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Priority to JP2025023227A priority patent/JP7836437B2/ja
Priority to AU2025271263A priority patent/AU2025271263A1/en
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Definitions

  • the present invention relates to compounds that can be used for the prevention, treatment and/or management of pain, in particular chronic pain, such as neuropathic pain, and/or other diseases or disorders that are associated with AT2R and/or AT2R-mediated signaling (as further described herein).
  • Pain can occur in many forms and can have various causes and underlying pathophysiological mechanisms. Pain can be spontaneous, chronic or acute, and can for example be caused by physical damage or potential damage to the body (so-called ’’nociceptive pain”) or by damage to and/or disease of the somatosensory nervous system (so-called “neuropathic pain”), such as pain caused by damage to or disease of the peripheral nerves (i.e. the nerves beyond the brain and the spinal cord), which is also referred to as “peripheral neuropathy” or “neuropathy” for short.
  • Pain states can also take the form of hypersensitivity to pain, for example in case of so-called “inflammatory pain”, which term is generally used to describe the spontaneous hypersensitivity to pain that occurs in response to tissue damage and inflammation (e.g. post-operative pain, trauma, arthritis).
  • Persistent pain states are often associated with the development of hyperalgesia (an increase in pain evoked by noxious stimuli and also a lowered threshold for pain) and/or allodynia (an increase in sensitivity to previously non- noxious levels of stimulation), although the term hyperalgesia has also been used in the literature to collectively refer to both hyperalgesia and allodynia (see for example Guindon and Hohmann, British Journal of Pharmacology (2008) 153, 319-334).
  • Neuropathic pain is a chronic secondary pain condition caused by damage to and/or disease of the somatosensory nervous system that is generally characterized by hyperalgesia and/or allodynia. Neuropathic pain affects around 7 to 10 % of the general population and can have a major impact on quality of life.
  • Szok et al. Behav. Neurol., 2019: 8685954; Colloca et al., Nat. Rev. Dis. Primers, 2017 Feb 16, 3: 17002; Alles and Smith, Pharmacol. Rev. 70: 315-347, April 2018; and Cavalli et al., Int. J. Immunopathol. Pharmacol., 2019 Jan-Dec, 33; as well as the further references cited therein.
  • neuropathic pain is caused by a lesion or disease of the somatosensory system, including peripheral fibers (Ab, Ad and C fibers) and central neurons.
  • neuropathic pain has been described, including metabolic diseases such as diabetes; cancer and cancer treatments such as chemotherapy; neurological conditions such as those caused by autoimmune diseases (e.g. multiple sclerosis); neurodegenerative conditions such as Parkinson’s disease; stroke; neuropathy caused by viral infections such as those caused by Herpes viruses (e.g. shingles); leprosy; Guillain-Barre syndrome; HIV infections; blood vessel diseases and vascular malformations; autoimmune conditions; and injury to nerves or the nervous system.
  • metabolic diseases such as diabetes; cancer and cancer treatments such as chemotherapy
  • neurological conditions such as those caused by autoimmune diseases (e.g. multiple sclerosis); neurodegenerative conditions such as Parkinson’s disease; stroke; neuropathy caused by viral infections such as those caused by Herpes viruses (e.g. shingles); leprosy; Guillain-Barre syndrome; HIV infections; blood
  • chronic neuropathic pain can originate from the peripheral part of the nervous system (for example in the case of trigeminal or post-herpetic neuralgia, peripheral nerve injury, painful polyneuropathies, or radiculopathies) or can originate from or involve the central nervous system (for example in the case of chronic neuropathic pain that develops as a result of spinal cord or brain injury, stroke or multiple sclerosis).
  • peripheral neuropathy or “neuropathy” for short.
  • TN trigeminal neuralgia
  • chronic NP after peripheral nerve injury, painful polyneuropathy, post-herpetic neuralgia, and painful radiculopathy.
  • chronic central NP associated with spinal cord injury (SCI), chronic central NP associated with brain injury, chronic central post-stroke pain, and chronic central NP associated with multiple sclerosis.
  • SCI spinal cord injury
  • chronic central NP associated with brain injury chronic central post-stroke pain
  • chronic central NP associated with multiple sclerosis chronic central NP associated with multiple sclerosis.
  • the angiotensin II receptor type 2 (also referred to herein as “AT2R”) has been proposed as a target for the treatment of neuropathic pain.
  • A2R angiotensin II receptor type 2
  • Some of the known modulators of AT2R that have been proposed or investigated for the treatment of neuropathic pain include the compounds EMA200 (also known as PD-123319), EMA300, EMA400 (also known as PD-126055) and EMA401/olodanrigan (see for example Smith et al., Pain Medicine 2013, 14: 692-705; Anand et al ,Mol. Pain 2015, 11: 38, as well as WO 2006/066361); the compound PD-123177 (see for example Singh and Kamik, J. Cell. Signal., 2016 June, 1(111)); and the compound known as C-38 (see for example Wallinder et al., ACS Med. Chem. Lett., 2015, 6, 2, 178-182; and Isaksson et al., Chemistry Open 2019, 8(1), 114-125.
  • EMA200 also known as PD-123319
  • EMA300 also known as PD-126055
  • EMA401/olodanrigan see
  • AT2R antagonists such as EMA- 401 referred to below
  • EMA- 401 EMA- 401 referred to below
  • AT2R is co-located with TRPVl in human dorsal root ganglions (DRGs)
  • DRGs dorsal root ganglions
  • AT2R plays a role in nociception by capsaicin sensitive sensory neurons and that AT2R antagonists may inhibit pain responses as well as neurite outgrowth in such cells
  • AT2R and its ligand angiotensin II are well known in the art.
  • AT2R is a G-protein coupled receptor that forms part of the renin-angiotensin system (RAS), a system that comprises multiple enzymes, peptide hormones and receptors and that is known, amongst its various biological functions, to be a major regulatory element in the control of cardiovascular and renal function.
  • RAS renin-angiotensin system
  • angiotensin II receptor type 1 AT1R
  • angiotensin II receptor type 2 AT2R
  • the Ang IV receptor also known as AT4R
  • the pro(renin) receptor and the MAS receptor.
  • the native peptide ligands that are known to be involved in the RAS are the angiotensins, the ligands of the pro(renin) receptor (such as renin and prorenin) and ligands of the MAS receptor.
  • the angiotensins include the octapeptide Ang II and its natural degradation product Ang III (which are both known to be ligands for AT1R and AT2R), the hexapeptide Ang (1- 7) (which is known to be the endogenous ligand for the MAS receptor), Ang IV (a natural degradation product of Ang II that is the main ligand of AT4R) and Ang I, a decapeptide precursor of Ang II that itself appears to have no major known direct biological activity.
  • Ang III which are both known to be ligands for AT1R and AT2R
  • Ang IV a natural degradation product of Ang II that is the main ligand of AT4R
  • Ang I a decapeptide precursor of Ang II that itself appears to have no major known direct biological activity.
  • Ang II which has been described as the pivotal peptide hormone of the RAS, is known to be a potent pressor hormone and a primary regulator of aldosterone secretion by the adrenal cortex to promote sodium retention by the kidneys. As such, it is an important effector controling blood pressure and volume in the cardiovascular system. Ang II is also used as a medication (marketed under the brand name GIAPREZATM) for treatment of vasodilatory shock.
  • AT1R and AT2R are both G protein-coupled receptors with about 34% sequence identity with each other.
  • the actions of AT1R and AT2R are generally assumed to oppose each other.
  • Activation of AT1R has been described as inducing biological actions such as, without limitation, cellular dedifferentiation and growth, vasoconstriction, antinatriuresis, aldosterone secretion, and sympathetic activation that ultimately lead to hypertension.
  • AT2R Activation of AT2R has been described as inducing, among other biological effects, cellular differentiation and growth inhibition/apoptosis, vasodilation and natriuresis that potentially lower blood pressure leading to antihypertensive effects in renal disease, and as having a protective role with respect to various tissues and organs.
  • AT2R is known to be highly expressed in fetal tissue, including fetal aorta, gastrointestinal mesenchyme, connective tissue, skeletal system, brain, adrenal medulla and fetal kidney tissue. AT2R expression generally declines after birth, with significant levels in adults mainly in the myometrium and with lower levels in the adrenal gland and fallopian tube.
  • AT2R is known to be strongly upregulated under pathological conditions such as tissue damage and injury (including vascular injury, neuronal injury, myocardial infarction and brain ischemia), where AT2R is thought to provide an endogenous protection to inflammatory, oxidative and apoptotic processes, again mainly by antagonizing AT1R.
  • an analgesic dose of the AT2R antagonist EMA300 blocks augmented angiotensin IEAT2R signaling in the dorsal root ganglions which in turn inhibits p38 MAPK and p44/p42 MAPK activation in the ipsilateral lumbar DRGs of nerve-injured rats.
  • AT2R anti-herpetic neuralgia
  • EMA401 antagonists of AT2R
  • EMA401 showing promise in the treatment of post-herpetic neuralgia in human subjects
  • pre-clinical pain models of shingles, diabetes, osteoarthritis, HIV and chemotherapy see for example WO 2006/066361 and Anand et al., supra
  • AT2R antagonists have so far found limited success in their (further) clinical development.
  • the invention generally aims to meet this need by providing compounds that can interact with AT2R.
  • the invention generally aims to provide compounds that can modulate (as defined herein) AT2R and AT2R-mediated signaling, such as the AT2R- mediated signaling that is associated with binding to AT2R of an AT2R ligand (such as a natural ligand of AT2R such as Ang II).
  • AT2R-mediated signaling such as the AT2R- mediated signaling that is associated with binding to AT2R of an AT2R ligand (such as a natural ligand of AT2R such as Ang II).
  • AT2R ligand such as a natural ligand of AT2R such as Ang II
  • the compounds of the invention are capable of binding to AT2R in a manner that allows the compounds of the invention to compete for binding to AT2R with one or more ligands of AT2R (and in particular one or more natural ligands of AT2R such as Ang II).
  • the compounds of the invention have favorable selectivity for AT2R (e.g. compared to AT1R).
  • the compounds of the invention are assumed to comprise a pharmacophore that is favorable for clinical applications and therapeutic uses in humans and other mammals. It is also expected that the compounds of the invention may have certain advantages in terms of safety and tolerability compared to some of the known AT2R modulators described in the art.
  • the compounds of the invention are capable of modulating (as defined herein), and in particular specifically modulating (as defined herein), such as inhibiting, the angiotensin II receptor type 2, AT2R-mediated signaling and/or the pathways and/or biological processes in which AT2R and/or AT2R-mediated signaling is involved. More in particular, as mentioned herein, it is assumed that the compounds of the invention are capable of competing for binding to AT2R with one or more natural ligands of AT2R.
  • the compounds and composition thereof can also be used for the prevention and treatment of diseases and disorders that can be prevented or treated by modulating, in a subject in need thereof, the angiotensin II receptor type 2, AT2R-mediated signaling and/or the pathways and/or biological processes in which AT2R and/or AT2R- mediated signaling is involved, in particular by administering, to said subject, one or more pharmaceutically active amounts (e.g. doses) of a compound of the invention, according to a suitable treatment or dosage regimen (which can be determined by the treating physician based on the state of the patient, the nature of the disease involved, the severity of the disease and/or its symptoms, and other factors that can be determined and suitably taken into account by the treating physician).
  • a suitable treatment or dosage regimen which can be determined by the treating physician based on the state of the patient, the nature of the disease involved, the severity of the disease and/or its symptoms, and other factors that can be determined and suitably taken into account by the treating physician).
  • the compounds and composition can be used for the prevention and treatment of diseases and disorders that can be prevented or treated by administering, to a subject in need thereof, a compound that is capable of competing with the binding of one or more natural ligands to the angiotensin II receptor type 2, in particular by administering, to said subject, one or more pharmaceutically active amounts (e.g. doses) of a compound of the invention, according to a suitable treatment or dosage regimen (which can be determined by the treating physician based on the state of the patient, the nature of the disease involved, the severity of the disease and/or its symptoms, and other factors that can be determined and suitably taken into account by the treating physician).
  • a suitable treatment or dosage regimen which can be determined by the treating physician based on the state of the patient, the nature of the disease involved, the severity of the disease and/or its symptoms, and other factors that can be determined and suitably taken into account by the treating physician).
  • diseases and disorders that are associated with AT2R, AT2R- mediated signaling, the pathways and/or biological processes in which AT2R and/or AT2R- mediated signaling is involved and/or binding of one or more natural ligands to AT2R will be clear to the skilled person (for example, from the prior art cited herein) and include other diseases and disorders for which the use of known modulators (and in particular modulators that compete for ligand binding to AT2R) and/or the use of known inhibitors and/or antagonists of AT2R and/or AT2R-mediated signaling have been described in the art. Reference is for example also made to the listing of AT2R-mediated diseases and disorders given in WO 2019/179515.
  • the AGTR2 gene is a modulator of insulin sensitivity, and previous studies have showed a blockade of the renin angiotensin system in mice (Frantz et al., 2013; Leung, 2007); in humans it prevents the onset of T2D and restores normoglycaemia (Geng et al., 2013) ”
  • the compounds of the invention can be used in the prevention and treatment of diabetes, in particular type II diabetes.
  • compositions and in particular pharmaceutical compositions, that comprise at least one compound of the invention.
  • compositions which are as further described herein, are also referred to as “ compositions of the invention” .
  • the invention in particular relates to uses of the compounds and compositions of the invention in the prevention, treatment and/or management of pain, in particular chronic pain, such as various forms of neuropathic pain and/or inflammatory pain, as further described herein, as well as other diseases or disorders that are associated with AT2R and/or AT2R-mediated signaling (as further described herein).
  • WO 2020/112905 describes compounds and methods for treating diseases using inhibitors of mono-acylglycerol lipase (MAGL), in which the compounds have the following formula, in which R1 is a -C(0)OR 15 group (with R 15 being hydrogen or C1-C6 alkyl) or a -C(O)NR 10 R 11 group (with R 10 and R 11 each independently being hydrogen or C 1 - C 6 alkyl) :
  • atopic dermatitis bladder dysfunction associated with multiple sclerosis, cardiovascular disease, contact dermatitis, cystic fibrosis, dermatomyositis, eczema, endometriosis, enteritis, fibromyalgia, Tourette syndrome, inflammatory bowel disease, interstitial cystitis, irritable bowel syndrome, ischemia, labor, abdominal pain, abdominal pain associated with irritable bowel syndrome, acute pain, back pain, cancer pain, chest pain, functional chest pain, joint pain, menstrual pain, metabolic disorders, musculoskeletal diseases, neuropathy, osteoarthritis, pancreatitis, pharyngitis, post-mastectomy pain syndrome, post-trigeminal neuralgia, post-operative pain, renal ischemia, rheumatoid arthritis, skeletal muscle contusion, skin diseases, sunburn, systemic lupus erythematosus, toothache, vaso-occlusive painful crises in sickle cell
  • said MAGL inhibitor carries a substituent (i.e. a CF 3 group) on a position meta relative to the tetrazole group, and there are linking groups between both the piperazine ring and the tetrazole-substituted phenyl ring (i.e. a methylene linking group) as well as the piperazine ring and the carboxyl-substituted pyrazole group of Formula A.
  • the substituted pyrazole group is linked to the rest of the molecule via a nitrogen atom in the pyrazole ring and not a carbon atom.
  • bonds/groups/substituents that are not explicitly shown can be in accordance with the further description herein of said compound/aspect/embodiment, and in the absence of such further description can be hydrogen or can each optionally be suitably and independently chosen from a suitable substituent (as defined herein), but will usually be a hydrogen atom; - when reference is made to a “suitable substituent” or where it is stated that an atom or position in a compound of the invention may be “suitably substituted”, each of these substituents (and the combination thereof) can be suitably chosen by the skilled person, optionally after a limited degree of trial-and-error.
  • Suitable substituents will be clear to the skilled person based on the disclosure herein (optionally after a limited amount of trial-and-error) and for example include the substituents or combination of substituents that are mentioned herein and/or that are present in the compounds of the invention that are illustrated in the Experimental Part below (see compounds A-01 to A-251 in Table 1).
  • Other suitable substituents will be clear to the skilled person based on the disclosure herein, and for example include (but are not limited to) halogen (i.e.
  • the atom at that position can be unsubstituted or suitably substituted with 1, 2 and up to 3 (in the case of a carbon atom) or 1 or 2 (in the case of a nitrogen atom) substituents, which are suitably and each independently chosen from one or more suitable substituents (as defined herein).
  • the maximum number of such suitable substituents that can be present at a particular position in a compound of the invention will depend on how many hydrogen atoms are carried by the atom that is present at said position and that can be suitably replaced by a suitable substituent (as defined herein), also taking into account factors such as the other atoms in the compound of the invention to which the atom in said position is bound. Also, as will be clear, the total number of substituents that can be present in or on a compound of the invention (or any structural part thereof) will generally depend on the number of atoms in such a compound that are (suitably) available for such substitutions (e.g.
  • each compound of the invention can optionally be in the form of a suitable salt or ester (as further described herein), and in particular in the form of a pharmaceutically acceptable salt or ester (also as further described herein).
  • a compound of the invention can generally be in any suitable or desired physical form, for example in a suitable crystalline form (including co-crystal forms or co-crystal salt forms), in a suitable amorphous form, and/or in the form of an anhydrate or a suitable hydrate or solvate (including but not limited to a hydrate or hemi-hydrate); a compound of the invention (including or a salt or ester thereof) can generally also be present in a solution, for example in a suitable solvent or mixture of solvents, such as a suitable aqueous solvent or buffer.
  • a compound of the invention can in particular be present in a pharmaceutically acceptable solution, which will usually be (sterile) water or a pharmaceutically acceptable aqueous buffer or solution.
  • a pharmaceutically acceptable aqueous buffers or solutions will be clear to the skilled person and include, but are not limited to, those mentioned in the further description herein;
  • a compound of the invention (or a salt or ester thereof) can generally be in pure or essentially pure form, in isolated or essentially isolated form, or in a suitable mixture with one or more other compounds;
  • a compound of the invention contains one or more chiral atoms or centers, it can be in the form of one or more different optical forms, such as in the form of different enantiomers or different stereoisomers (e.g. in the form of two or more enantiomers or in the form of two or more diastereomers, with the term “diastereomer” or “diastereoisomer” generally being used herein to refer to any stereoisomer that is not an enantiomer).
  • a compound of the invention refers to and encompasses all such possible optical forms (e.g. all possible enantiomers or stereoisomers, respectively). Also, when a compound of the invention can exist in one or more such optical forms, the term “compound of the invention” encompasses each of such optical forms in essentially pure form (and/or in essentially isolated form) as well as mixtures of two or more such possible optical forms (in any ratio), including but not limited to racemic mixtures.
  • a compound of the invention can also be (administered or used) in the form of a suitable prodrug, e.g. a compound that, upon administration to a subject and/or under physiological conditions, is converted into a compound of the invention.
  • a suitable prodrug e.g. a compound that, upon administration to a subject and/or under physiological conditions, is converted into a compound of the invention.
  • a compound of the invention may be suitably labeled with a suitable label (e.g. an atom, group, moiety or entity that, under suitable conditions, can (be used to) generate a detectable signal.
  • suitable labels include radio- isotopes (e.g., 2 H, 3 H, 13 C, 14 C, 18 F, 35 S, 125 I) and fluorescent or phosphorescent labels.
  • Such labeled compounds can be used for purposes known per se, such as for tissue distribution/penetration studies and for PK and other pharmacological studies and in the field of medical diagnosis and the like, using a suitable technique for detecting the label.
  • radiolabeled compounds of the invention may be used as a tracer in Positron Emission Tomography (PET) techniques; as will be clear to the skilled person from the further description herein, it is possible that, in some cases as further indicated herein, different parts or structural elements of a compound of the invention are either directly linked (i.e. via a covalent bond) or alternatively linked via a suitable linking group or bridging group.
  • PET Positron Emission Tomography
  • linking group when such a linking group (also referred to herein as an “alkylene linking group”) is present it will generally be an C 1 or C 2 alkylene group (and is preferably a methylene group, also referred to herein as a “methylene linking group”), in which each carbon atom in said alkylene linking group can independently optionally be suitably substituted (such as with one or two methyl groups per carbon atom) but is preferably unsubstituted (i.e. a -CH 2 - linking group).
  • bioisostere when used in respect of a compound, group or moiety, respectively, has its usual meaning in the art and as such refers to compounds, groups or moieties that have similar physical or chemical properties and as a result have broadly similar biological activities than said compound, group or moiety (Friedman HL (1951), NASNRS 206: 295-358).
  • Bioisosteres which are usually obtained by replacing an atom or group of atoms with another, broadly similar, atom or group of atoms, may have one or more enhanced properties (such as reduced toxicity, improved bioavailability, modified or improved activity, or an improved metabolic profile) compared to the original compound, group or moiety.
  • alkyl is defined as a linear or branched saturated aliphatic hydrocarbon.
  • an alkyl group has from 1 to 12 carbon atoms, particularly from 1 to 8 (“C 1 - 8 alkyl” or “C 1 -C 8 alkyl”), for example from 1 to 6 carbon atoms (“C 1-6 alkyl” or “C 1 -C 6 alkyl”), such as 1 up to 4 carbon atoms (“C 1-4 alkyl” or “C 1 -C 4 alkyl”), more particularly 1, 2, 3, 4, 5, 6, 7, or 8 carbon atoms.
  • C 1-8 alkyl and or “C 1 -C 8 alkyl” refer to a linear or branched group of 1 to 8 carbon atoms (e.g. methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n- pentyl, isopentyl, neopentyl or 1-hexyl, 2-hexyl, 3-hexyl, 2-methyl-2-pentyl, 4-methyl- 2-pentyl, 3 -methyl-3 -pentyl, 2-m ethyl-3 -pentyl, 2,3-dimethyl-2-butyl, 3,3-dimethyl-2- butyl, 1-heptyl, 1 -octyl, etc.), which are optionally substituted by one or more (such as 1 to 3) suitable substituents such as hal
  • C 1 - 4 alkyl and “C 1 -C 4 alkyl” refer to a linear or branched aliphatic hydrocarbon chain of 1 to 4 carbon atoms (i.e. methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl or tert-butyl);
  • C 1 -C 8 alkoxy refers to an alkoxy group that comprises a C 1 -C 8 alkyl group as defined herein.
  • C 1 -C 6 alkoxy refers to an alkoxy group that comprises a C 1 -C 6 alkyl group as defined herein and the term “C 1 -C 4 alkoxy” refers to an alkoxy group that comprises a C 1 -C 4 alkyl group;
  • C 1 -C 8 amine refers to an amine group NR F R G in which each of R F and R G is independently hydrogen or a C 1 -C 8 alkyl group as defined herein (provided that R F and R G are not both hydrogen).
  • C 1 -C 6 amine refers to an amine group NR F R G in which each of R F and R G is independently hydrogen or a C 1 -C 6 alkyl group as defined herein (provided that R F and R G are not both hydrogen) and the term “C 1 -C 4 amine” refers to an amine group NR F R G in which each of R F and R G is independently hydrogen or a C 1 -C 4 alkyl group as defined herein (provided that R F and R G are not both hydrogen);
  • cycloalkyl refers to a saturated cycloalkyl group with between 3 and 6 carbon atoms (e.g. cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl), which may suitably be unsubstituted or substituted (as described herein), but which when substituted is most preferably suitably substituted with only C 1 or C 2 alkyl groups (and preferably 1 or 2 methyl groups);
  • heterocyclyl refers to “a non-aromatic ring with between 3 and 10 ring atoms, and preferably 3, 4, 5 or 6 ring atoms, which suitably contains carbon atoms and 1 or 2 hetero-atoms (each suitably chosen from N, O or S) such that each such hetero-atom is most preferably connected to two carbon atoms in the ring (and most preferably not to another hetero-atom in the ring), which non-aromatic ring may suitably be unsubstituted or substituted (as described herein), but which when substituted is most preferably suitably substituted with only C 1 or C 2 alkyl groups (and preferably 1 or 2 methyl groups).
  • pyrroline pyrrolidine
  • pyrazolidine imidazoline
  • tetrahydrofuran piperidine
  • piperazine morpholine.
  • Each such heterocyclyl group may suitably be unsubstituted or substituted (as described herein), but which when substituted is most preferably suitably substituted with only C 1 or C 2 alkyl groups (and preferably 1 or 2 methyl groups).
  • each such nitrogen atom may be unsubstituted or suitably substituted with an C 1 -C 3 alkyl group (and preferably a methyl group);
  • modulating or “to modulate” generally means either reducing or inhibiting the activity of, or alternatively increasing the activity of, a GPCR, as measured using a suitable in vitro, cellular or in vivo assay (such as those mentioned herein).
  • modulating or “to modulate” may mean either reducing or inhibiting the activity of, or alternatively increasing the activity of, a GPCR, as measured using a suitable in vitro, cellular or in vivo assay (such as those mentioned herein), by at least 1%, preferably at least 5%, such as at least 10% or at least 25%, for example by at least 50%, at least 60%, at least 70%, at least 80%, or 90% or more, compared to activity of a GPCR in the same assay under the same conditions but without the presence of the compound, amino acid sequence or polypeptide of the invention (as applicable).
  • modulating may also involve effecting a change (which may either be an increase or a decrease) in affinity, avidity, specificity and/or selectivity of a GPCR for one or more of its targets, ligands or substrates; and/or effecting a change (which may either be an increase or a decrease) in the sensitivity of a GPCR for one or more conditions in the medium or surroundings in which a GPCR is present (such as pH, ion strength, the presence of co-factors, etc.), compared to the same conditions but without the presence of the compound, amino acid sequence or polypeptide of the invention (as applicable).
  • Modulating may also mean effecting a change (i.e. an activity as an agonist, as an antagonist, as a reverse agonist and/or as an allosteric modulator, respectively, depending on the GPCR and the desired biological or physiological effect) with respect to one or more biological or physiological mechanisms, effects, responses, functions, pathways or activities in which a GPCR (or in which its substrate(s), ligand(s) or pathway(s) are involved, such as its signaling pathway or metabolic pathway and their associated biological or physiological effects) is involved.
  • such an action as an agonist or an antagonist may be determined in any suitable manner and/or using any suitable (in vitro and usually cellular or in vivo) assay known per se, such as the assays described herein or in the prior art cited herein.
  • an action as an agonist or antagonist may be such that an intended biological or physiological activity (such as, for example and without limitation, receptor mediated signaling) is increased or decreased, respectively, by at least 1%, preferably at least 5%, such as at least 10% or at least 25%, for example by at least 50%, at least 60%, at least 70%, at least 80%, or 90% or more, compared to the biological or physiological activity in the same assay under the same conditions but without the presence of the relevant compound, amino acid sequence or polypeptide of the invention.
  • an intended biological or physiological activity such as, for example and without limitation, receptor mediated signaling
  • a compound, amino acid sequence or polypeptide of the invention modulates its target (as long as the target is modulated as described herein), and thus that modulating may, for example and without limitation, involve binding at an orthosteric site or allosteric modulation (i.e. binding at an allosteric site, see for example George et al., Nat. Rev. Drug Discov. 1: 808-820 (2002); Kenakin, Trends Pharmacol. Sci. 25: 186-192 (2002) and Rios et al., Pharmacol. Ther.
  • Modulating may also involve activating a GPCR or the mechanism or pathway in which it is involved. Modulating may be reversible or irreversible, but for pharmaceutical and pharmacological purposes will usually be in a reversible manner.
  • a “modulator” is a compound or factor that can modulate a GPCR, which as set out herein means that it can, under physiological conditions and/or the conditions used in a relevant assay or model, enhance, inhibit/reduce or otherwise alter, influence or affect a functional property of a biological activity or process (for example, the biological activity of a target and/or of the signaling and/or biological pathways in which said target is involved, or a biological read-out associated with said target or signaling).
  • a modulator may be used to modulate a target in vitro (e.g. as part of an assay or screen) and/or in vivo (for example, when the modulator is administered to an animal (e.g.
  • Modulators or candidate modulators may for example be identified, tested and/or further characterized by means of an in vitro screen or assay that involves the relevant target, such as a primary screen (e.g. a screen used to identify modulators of the target from a set or library of test chemicals with unknown activity with respect to the target) and/or a secondary assay (e.g. an assay used for validating hits from a primary screen and/or used in optimizing hit molecules, e.g.
  • a primary screen e.g. a screen used to identify modulators of the target from a set or library of test chemicals with unknown activity with respect to the target
  • a secondary assay e.g. an assay used for validating hits from a primary screen and/or used in optimizing hit molecules, e.g.
  • such an assay or screen may be configured as an in vitro assay or screen, which will generally involve binding of the (candidate) modulator to the target, upon which a signal generated by said binding is measured. Suitable techniques for such in vitro screening will be clear to the skilled person, and are for example described in Eldefrawi et al., (1987). FASEB J, Vol.l, pages 262-271 and Rauh et al., (1990), Trends in Pharmacol. Sci., vol. 11, pages 325-329.
  • such an assay or screen may be configured as a binding assay or screen, in which the (candidate) modulator is used to displace a detectable ligand from the target (e.g. a radioactive or fluorescent ligand), upon which the amount of ligand displaced from the target by the modulator is determined.
  • a compound will be considered a modulator when it alters or changes said functional property of a biological activity or process (i.e. a signal or read-out in a relevant assay or model) by at least 1 percent, such as at least 5 percent or more, compared to the value(s) obtained when the same assay or model is performed without the presence of the (candidate) modulator:
  • affinity denotes the strength or stability of a molecular interaction.
  • the affinity is commonly given by the K D , or dissociation constant, which has units of mol/liter (or M).
  • the affinity can also be expressed as an association constant, KA, which equals 1/K D and has units of (mol/liter) 1 (or M 1 ).
  • Affinity can be determined in a manner known per se;
  • a monocyclic ring can suitably comprise or essentially consist of between 3 and 10 ring atoms, such as 3, 4, 5, 6, 7, 8, 9 or 10 ring atoms, and in particular 4, 5 or 6 ring atoms.
  • bicyclic when this term refers to a ring system (such as an aliphatic ring system or an aromatic ring system), refers to a ring system that comprises or essentially consists of two rings which are suitably fused with each other (usually such that the two fused rings share two ring atoms, in which each of the rings that form the bicyclic ring system suitably comprises or essentially consists of carbon atoms and optionally one or more (such as 1 or 2) hetero-atoms (which hetero-atoms are preferably each independently and suitably chosen, more preferably from O, N and/or S).
  • a bicyclic ring can suitably comprise or essentially consist of between 8 and 12 atoms, such as 8, 9, 10, 11 or 12 ring atoms.
  • the fused rings in a bicyclic ring system will usually share two carbon atoms, but as will be clear to the skilled person, it is also possible for the fused rings to share one carbon atom and one nitrogen atom if a nitrogen atom is suitably present.
  • a bicyclic ring system can suitably comprise or essentially contain two aliphatic rings (again suitably fused, usually such that the two fused rings share two atoms), two aromatic rings (again suitably fused, usually such that the two fused rings share two atoms and that the totality of the two rings in the bicyclic rings system forms a conjugated planar ring system); or suitably comprise or essentially consist of one aromatic ring and one aliphatic ring (again suitably fused, usually such that the two fused rings share two atoms).
  • a bicyclic ring system that comprises at least one aromatic ring will generally be referred to herein as an aromatic ring system, irrespective of whether the second ring in the ring system is aromatic or aliphatic.
  • a bicyclic ring system can also suitably comprise two of the monocyclic ring systems referred to herein, which are suitably fused to each other (i.e. such that in the bicyclic ring system, the two fused rings share at least two ring atoms).
  • polycyclic when this term refers to a ring system (such as an aliphatic or aromatic ring system), refers to a ring system that comprises or essentially consists of two or more rings (such as 2, 3, 4 or 5 rings), in which each ring within the ring system is suitably and independently fused to at least one other ring within the ring system (usually such that said two rings that are fused to each other share two rings atoms).
  • each of the rings that form the ring system suitably comprises or essentially consists of carbon atoms and may optionally comprise one or more (such as 1 or 2) hetero-atoms (which hetero-atoms are preferably each independently and suitably chosen, more preferably from O, N and/or S).
  • hetero-atoms which hetero-atoms are preferably each independently and suitably chosen, more preferably from O, N and/or S.
  • the total number of ring atoms in a polycyclic ring system will depend on the total number of rings in the ring system, the number of ring atoms in each ring, and the number of ring atoms that are shared between the different rings.
  • fused rings in a polycyclic bicyclic ring system will usually share two carbon atoms, but as will be clear to the skilled person, it is also possible for the fused rings to share one carbon atom and one nitrogen atom if a nitrogen atom is suitably present.
  • a polycyclic ring system can suitably comprise or essentially contain only aliphatic rings, can suitably comprise or essentially contain only aromatic rings, or can suitably be comprised of one or more aliphatic rings and one or more aromatic rings (and again, for the sake of convenience only and without limiting the scope of the present disclosure or claims, a polycyclic ring system that comprises at least one aromatic ring will generally be referred to herein as an aromatic ring system, irrespective of whether the other rings in the system are aromatic and/or aliphatic).
  • a polycyclic ring system can also suitably comprise two or more of the monocyclic ring systems referred to herein, which are suitably fused to each other (i.e. such that in the polycyclic ring system, two rings that are fused to each other share at least two ring atoms).
  • tricyclic when this term refers to a polycyclic ring system as described herein, refers to a polycyclic ring system that essentially consists of three rings.
  • heterocyclic when this term refers to a ring system (such as an aliphatic or aromatic ring system), refers to a ring system that suitably contains one or more hetero-atoms (which are preferably each independently chosen from N, O or S); and the term “hetero-aromatic”, when this term refers to an aromatic ring system, refers to an aromatic ring system that suitably contains one or more hetero-atoms (which are preferably each independently chosen from N, O or S).
  • the ring system may be covalently bound or linked to the other part (or parts) of the compound of the invention at any suitable position (or positions) of the ring system, also relative to any other structural elements that are present in or on the ring system, such as relative to any hetero-atoms that are present in the ring system and/or relative to any substituents that are present on the ring system.
  • the ring system may be covalently bound or linked to one or more other parts and/or structural elements of the compound of the invention via said nitrogen atom; and/or each of the atoms that make up said ring system may independently either not carry any substituents or may be suitably substituted (as defined herein), with the number of possible substituents on a given ring atom being dependent on how many further bonds a given ring atom can form in addition to the bonds it has to the other ring atoms (e.g. how many hydrogen atoms said ring atom carries that can be suitably replaced by a suitable substituent).
  • any suitable substituents may be present at any suitable position or positions of the ring system, also relative to any other structural elements of the ring system, such as relative to any hetero-atoms that are present in the ring system and/or relative to the position (or positions) where the ring system is covalently linked to the other part (or parts) of the compound of the invention.
  • the ring system contains one or more nitrogen atoms
  • each of said nitrogen atoms may independently either not be substituted or be suitably substituted (as defined herein), again depending on how many further bonds said nitrogen ring atom can form in addition to the bonds it has to the other ring atoms (e.g.
  • each of said one or more hetero-atoms may be at any suitable position(s) in the ring system (i.e. relative to the carbon atoms in the ring system), also relative to any other structural elements that are present in or on said ring system, such as relative to any further hetero-atoms that may be present in the ring system, relative to any substituents that are present on the ring system and/or relative to the position (or positions) where the ring system is covalently linked to the other part (or parts) of the compound of the invention.
  • the one or more hetero-atoms that are present in said ring(s) should be at position(s) relative to the carbon atoms in said ring(s) and any other hetero-atoms in said ring(s) such that the resulting ring(s) form a conjugated planar ring system.
  • each of said nitrogen atoms may independently also be suitably substituted (as defined herein), again depending on how many further bonds said nitrogen ring atom can form in addition to the bonds it has to the other ring atoms.
  • aliphatic ring has their usual meaning in the art and generally refer to aliphatic compounds that comprise or essentially consist of one or more rings (such as a single ring or two or more fused rings).
  • aliphatic ring system also comprises rings and ring systems that contain one or more double or triple bonds, as long as said ring is not an aromatic ring (as defined herein).
  • alicyclic is used herein to refer to a non-aromatic ring system that only comprises carbon atoms.
  • such an aliphatic ring system can be monocyclic, bicyclic, tricyclic or polycyclic (all as described herein) and can contain only carbon atoms or can suitably contain carbon atoms and a suitable number (such as 1, 2, 3 or more, depending on the total number of rings in the aliphatic ring system) of hetero-atoms that are each independently chosen from N, S or O. It should also be noted that each atom in such an aliphatic ring system can be suitably substituted (as defined herein).
  • An aliphatic ring system can also suitably contain one or more double bonds (such as a carbon-carbon double bond), albeit that, for the purposes of convenience only and without limiting the scope of the present disclosure or claims, a ring system that contains at least one aromatic ring will generally be referred to herein as an aromatic ring system.
  • An aliphatic ring system as described herein may also be a bridged ring system, in which the terms “bridged” or “bridge” have their usual meaning in the art (i.e. meaning that such a bridged aliphatic ring system comprises two rings which share three or more atoms, separating the two bridgehead atoms by a bridge containing at least one atom, for example with an alkylene bridge as described herein).
  • Such a bridged aliphatic ring system may also suitably contain one or more hetero-atoms.
  • bridged aliphatic ring systems include bicyclo[2.2.1]heptane and bicyclo[2.2.2]octane as well as the bridged ring systems that are present in the compounds of the invention that are exemplified in the Experimental Part below (see for example compounds A- 189, A- 190, A- 232 and A-233).
  • a 6-, 7-, 8-, 9- or 10-membered ring in which there is a direct covalent bond between two carbon atoms in the ring such that resulting ring system essentially comprises two fused rings that share said two connected ring atoms (as for example in decalin or the bicyclic diaza-structure of formula XCVIII herein) will also be considered a “bridged” ring system, even though in such structures the “bridge” consists of a covalent bond.
  • aliphatic ring systems include, but are not limited to:
  • cycloalkanes such as cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl and cyclo-octyl, and cycloalkenes such as cyclopentene and cyclohexene;
  • azetidine pyrrolidine, 2-pyrroline, 3-pyrroline, pyrazolidine, imidazolidine, 2- pyrazoline, 2-imidazoline, piperidine, piperazine;
  • thiolane tetrahydrothiophene
  • 1,2-oxothiolane 1,3-oxothiolane
  • - monocyclic aliphatic ring systems containing carbon atoms and two different hetero- atoms 1,2-oxathiolane, 1,3-oxathiolane, morpholine, thiomorpholine, 1,2-thiazine, 1,4- thiazine; - bicyclic aliphatic ring systems containing carbon atoms and nitrogen atoms: pyrrolizidine, decahydroisoquinoline, decahydroquinoline,
  • such an aliphatic ring system may be suitably covalently bound or linked to another part (or two or more other parts) of the compound of the invention at any suitable position of the ring system (again, dependent upon whether the atom that is present at said position can form a covalent bond with the other part(s) of the compound of the invention).
  • each of the atoms that make up the aliphatic ring system may independently either not carry any substituents or may be optionally substituted (as defined herein), with the number of possible substituents on a given ring atom being dependent on the number of covalent bonds that said ring atom can form in addition to its bonds that it has to other ring atoms.
  • aromatic ring or “aromatic ring system” have their usual meaning in the art and generally refer to rings that form a conjugated planar ring system.
  • such an aromatic ring system can be monocyclic, bicyclic, tricyclic or polycyclic (all as described herein) and can contain only carbon atoms or can suitably contain a suitable number (such as 1, 2, 3 or more, depending on the total number of rings in the aromatic ring system) of hetero-atoms (which are preferably each independently chosen from N, S or O). It should also be noted that each atom in such an aromatic ring system can be suitably substituted (as defined herein). As also described herein, for the sake of convenience only, a polycyclic ring system that contains one or more aliphatic rings in addition to the one or more aromatic rings (for example xanthene) will be considered an aromatic ring system.
  • aromatic ring systems include, but are not limited to:
  • indole isoindole, indoline, quinoline, isoquinoline, indolizine, indazole, benzimidazole, quinoxaline, phtalazine, quinazoline, cinnoline, 1,8-naphteridine, pyrido[3,2-d]- pyrimidine, pyrido[4,3-d]-pyrimidine, pyrido[3,4-b]pyrazine, pyrido[2,3-b]pyrazine, pteridine, 4-azaindole, 5-azaindole, 6-azaindole, 7-azaindole, purine, tetrahydroquinoline, 1 ,2-dihydroquinoline, 1 ,2-dihydroisoquinoline;
  • anthracene phenantrene
  • pyrene benzo(a)pyrene
  • carbazole alloxazine, acridin, phenazine, phenoxazine, phenothiazine.
  • aromatic rings/ring systems Some other examples of aromatic rings/ring systems will be clear to the skilled person based on the further disclosure herein and from the compounds of the invention exemplified in the Experimental Part below that contain such aromatic rings/ring systems.
  • such an aromatic ring system may be suitably covalently bound or linked to another part (or two or more other parts) of the compound of the invention at any suitable position of the ring system (again, dependent upon whether said ring atom can form a covalent bond in addition to the bonds that link it to other ring atoms).
  • each of the atoms that make up the aromatic ring system may independently either not carry any substituents or may be optionally substituted (as defined herein), again, dependent upon whether said ring atom can form covalent bonds with such substituents in addition to the bonds that link it to other ring atoms.
  • a ring system as described herein may also be suitably substituted with one or more (but usually only one or two and often only one) oxygen atom.
  • Some specific but non-limiting examples of ring systems that are substituted with an oxygen atom include, but are not limited to: quinolin-2- [ 1 H] -one, i soquinolin- 1 -[2H] -one.
  • ring systems that can be present in a compound of the invention will become clear to the skilled person based on the disclosure herein, and include the ring systems that are present in the compounds of the invention that are exemplified in the Experimental Part below.
  • a compound comprises two or more rings or ring systems (which rings are not fused into a single ring system) said rings may be suitably either be directly linked via a covalent bond or indirectly linked via a suitable (unsubstituted or suitably substituted) alkylene linking group (as further defined herein), such as a (unsubstituted or suitably substituted) methylene linking group (in which case, as mentioned herein, each such alkylene linking group may alternatively be a carbonyl group).
  • the compounds of the invention generally comprise an aliphatic ring (which aliphatic ring is as further described herein) that is covalently linked (i.e. either directly or via an alkylene linking group and in particular a methylene linking group, both as defined herein) to an aromatic ring (which aromatic ring is as further described herein), which aromatic ring further at least carries an acidic substituent (which an acidic substituent is as further described herein, and which, without being limited to any hypothesis or explanation, is thought to allow for interaction or improved interaction with AT2R and in particular with one or more of the amino acids in the AT2R sequence that are thought to be present in the putative binding pocket/binding site on/in AT2R to which the compounds of the invention are assumed to bind) on a carbon atom that is adjacent to (i.e.
  • the Aliphatic Ring A may also essentially consist of a bridged ring system (as further described herein), which may be unsubstituted or substituted (as further described herein); or a fused ring system (as further described herein), which may be unsubstituted or substituted (as further described herein); or a spiro-type ring system, which may be unsubstituted or substituted (as further described herein).
  • a fused ring system or spiro-type ring system are given herein as Formulae LXXXV and XCII, Formula XCVIII and Formula C, respectively.
  • the Aliphatic Ring A may be a bioisostere (as defined herein) of the ring structure of Scheme C herein and in particular of the ring structure of Scheme D herein. Suitable bioisosteres will be clear to the skilled person based on the disclosure herein.
  • Aromatic Ring B it should be noted that, if said Ring B is a 5- membered ring, that the same numbering system will be used, with the position/atom to which the Aromatic Ring B is linked to the Aliphatic Ring A again being indicated as position “1” but without the position/atom that is indicated as “6” in the above Scheme A.
  • each of the positions/atoms “3” and “4” will be deemed opposite to the position/atom at position “1” in Ring A
  • each of the positions/atoms “4” and “5” will be deemed opposite to the position/atom at position “1” in Ring A.
  • the compounds of the invention will generally, and preferably, comprise a second aromatic ring system (which is different from the Aromatic Ring B) which second aromatic ring system is covalently linked either directly or via an alkylene linking group and in particular a methylene linking group (both as defined herein, and which as mentioned herein may also be a carbonyl group) to the position/atom on the Aliphatic Ring A that is indicated as “1” in the above formula (i.e. the position/atom “opposite to” the position/atom to which the Aromatic Ring B is linked).
  • a second aromatic ring system which is different from the Aromatic Ring B
  • second aromatic ring system is covalently linked either directly or via an alkylene linking group and in particular a methylene linking group (both as defined herein, and which as mentioned herein may also be a carbonyl group) to the position/atom on the Aliphatic Ring A that is indicated as “1” in the above formula (i.e. the position/atom “opposite to” the position/atom to which the Aroma
  • said second aromatic ring system (which is as further described herein) will also be referred to herein as “Aromatic Ring System C” or ’’Ring System C” and denoted as/by “[C]” and the position/atom on the Aliphatic Ring A to which said Aromatic Ring System C is linked will be considered as position “1” of the aliphatic ring A for the purposes of applying the numbering system that is schematically shown in the above Scheme A and further explained in the preceding paragraphs.
  • Aromatic Ring System C the Aliphatic Ring A and the Aromatic Ring B are each as further described herein; and:
  • Aromatic Ring System C is either directly covalently bound to the Aliphatic Ring A or linked to the Aliphatic Ring A via an alkylene linking group (as defined herein, and which as mentioned herein may also be a carbonyl group), and in particular a methylene linking group (as defined herein); and:
  • the Aliphatic Ring A is either directly covalently bound to the Aromatic Ring B or linked to the Aromatic Ring B via an alkylene linking group (as defined herein, and which as mentioned herein may also be a carbonyl group), and in particular a methylene linking group (as defined herein); and:
  • Aromatic Ring System C and the Aromatic Ring B are linked to the Aliphatic Ring A at ring atoms within the Aliphatic Ring A that are opposite to each other (as further defined herein).
  • Aromatic Ring System C is a ring system that comprises one or more rings, in which at least one of the rings is an aromatic ring (and up to all of the rings can be aromatic rings), which ring system is as further described herein (and may optionally also be suitably substituted, as further described herein); and:
  • each C is a carbon atom
  • each atom Q is independently a carbon atom or a nitrogen atom (with preferably at least one of the atoms Q being a nitrogen atom and more preferably both atoms Q being nitrogen atoms)
  • v and w are as further defined herein
  • each of the R x groups present and each R y groups present are independently as further defined herein (and in which one of R x or R y linked to the C (V) carbon chain and one of the R x or R y linked to the (W) carbon chain may be such that, taken together, they form an alkylene bridge or a covalent bond, such that the resulting structure is a bridged ring system or a fused ring system, respectively, both as further described herein); and more in particular an overall structure that is as schematically represented by the following Scheme D:
  • each atom Q is independently a carbon atom or a nitrogen atom (with preferably at least one of the atoms Q being a nitrogen atom and more preferably both atoms Q being nitrogen atoms), and each of R 5 to R 12 are independently as further defined herein (and in which one of R 5 or R 8 and one of R 9 or R 12 may be such that, taken together, they form an alkylene bridge or a covalent bond, such that the resulting structure is a bridged ring system or a fused ring system, respectively, both as further described herein); or in which alternatively the Aliphatic Ring A is a ring system of one of Formulae XCIX or C:
  • [D] represents the Acidic Substituent [D] (which is as further described herein), and each of X, Y and Z and each of R 1 , R 2 , R 3 and R 4 (when present) are as further described herein; and in particular an overall structure that is as schematically represented by the following Scheme F :
  • [D] represents the Acidic Substituent [D] (which is as further described herein), and each R 1 , R 2 and R 4 are as further described herein; and:
  • Aromatic Ring System C is either directly covalently bound to the Aliphatic Ring A or linked to the Aliphatic Ring A via an alkylene linking group (as defined herein, and which as mentioned herein may also be a carbonyl group), and in particular a methylene linking group (as defined herein); and
  • the Aliphatic Ring A is either directly covalently bound to the Aromatic Ring B or linked to the Aromatic Ring B via an alkylene linking group (as defined herein, and which as mentioned herein may also be a carbonyl group), and in particular a methylene linking group (as defined herein); and:
  • Aromatic Ring System C and the Aromatic Ring B are linked to the Aliphatic Ring A at ring atoms within the Aliphatic Ring A that are opposite to each other (as further defined herein).
  • each of the Aromatic Ring System C, the Aliphatic Ring A, the Aromatic Ring B and the acidic Substituent D, as well as each of the alkylene linking groups C (m) R A R B and C (n) RcR D (when present) and the substituents R 1 to R 12 (when present) can generally be as further described herein, and are preferably each according to the preferred aspects that are described for each of them herein.
  • [A] represents a ring system that is as schematically represented by the following Scheme C:
  • Formula XCIX Formula C: in which said ring system of Formula XCIX or Formula C may optionally be suitably substituted with one or more suitable substituents that, when present, are each preferably independently chosen from the group consisting of hydrogen, methyl, ethyl, halogen (in particular fluor (F)), CF 3 and isopropyl.
  • suitable substituents that, when present, are each preferably independently chosen from the group consisting of hydrogen, methyl, ethyl, halogen (in particular fluor (F)), CF 3 and isopropyl.
  • the compounds of the invention will have the following structure (Formula II):
  • Scheme C in which each atom Q, and each group R x and R y and each of v and w are as further described herein; and in particular a ring system that is as schematically represented by the following Scheme D: Scheme D: in which each Q and each of R 5 to R 12 are as further described herein; or alternatively [A] is a ring system of one of Formulae XCIX or C:
  • Formula XCIX Formula C: in which said ring system of Formula XCIX or Formula C may optionally be suitably substituted with one or more suitable substituents that, when present, are each preferably independently chosen from the group consisting of hydrogen, methyl, ethyl, halogen (in particular fluor (F)), CF 3 and isopropyl.
  • the compounds of the invention will have the following structure (Formula III):
  • Formula XCIX Formula C: in which said ring system of Formula XCIX or Formula C may optionally be suitably substituted with one or more suitable substituents that, when present, are each preferably independently chosen from the group consisting of hydrogen, methyl, ethyl, halogen (in particular fluor (F)), CF 3 and isopropyl.
  • the compounds of the invention will have the following structure (Formula IV):
  • Formula IV in which the aromatic ring system denoted by [C], the acidic substituent denoted by [D], each of X, Y and Z, each of R 1, R 2 , R 3 and R 4 (when present), each of R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 and R 12 , each of R A , R B , R C and R D , each Q, and m and n are each as further defined herein (and are in particular in accordance to preferred aspects that are described herein for each of these).
  • the compounds of the invention will have the following structure (Formula V):
  • Formula V in which the aromatic ring system denoted by [C], the acidic substituent denoted by [D], each 0fR1.R 2 .R 3 and R 4 , each of R 5 , R 5 , R 7 , R 5 , R 9 , R 10 , R 11 and R 12 , each of R A , R B , R C and RD, each Q, and m and n are each as further defined herein (and are in particular in accordance to preferred aspects that are described herein for each of these).
  • the compounds of the invention will have the following structure (Formula VI): Formula VI: in which the aromatic ring system denoted by [C], the acidic substituent denoted by [D], each of RI,R 2 and R 4 , each of R 5 , R 5 , R7, R 5 , R 9 , R 10 , R 11 and R 12 , each of R A and R B , each Q, and m are each as further defined herein (and are in particular in accordance to preferred aspects that are described herein for each of these).
  • Formula VI in which the aromatic ring system denoted by [C], the acidic substituent denoted by [D], each of RI,R 2 and R 4 , each of R 5 , R 5 , R7, R 5 , R 9 , R 10 , R 11 and R 12 , each of R A and R B , each Q, and m are each as further defined herein (and are in particular in accordance to preferred aspects that are described herein for each of these).
  • R 1 is preferably chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 3 or C 4 cycloalkyl, CF 3 , C 1 -C 8 alkoxy, amine (- NH 2 ) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine) and cyano.
  • R 2 is preferably chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 1 -C 8 alkoxy, cycloalkyl, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine).
  • the group R 3 is preferably chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 - 8 alkyl (e.g. sec-butyl and in particular iso-butyl), including fluor-substituted methyl groups (e.g. trifluoromethyl and CHF 2 ),
  • cyclopropoxy, cyclobutoxy or cyclopentoxy -CH 2 - cycloalkyl, -O-CH 2 -cycloalkyl, -O-cycloalkyl, -NH-cycloalkyl, -N(C 1 -C 3 )-cycloalkyl, - MI-heteroalkyl, -N(C 1 -C 3 )-heteroalkyl, heterocyclyl (e.g. oxirane), -CH 2 -heterocyclyl, - O-CH 2 -heterocyclyl (e.g.
  • allyl or methyl-substituted allyl e.g. -CH 2 CHMH 2
  • the group R 3 is isobutyl (i.e. as in the compounds of the invention of Formula III and/or Formula VI).
  • the group R 1 is preferably chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 3 or C 4 cycloalkyl, CF 3 , C 1 -C 8 alkoxy, amine (- NH 2 ) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine) and cyano; and/or
  • R 2 is preferably chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 1 -C 8 alkoxy, cycloalkyl, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine); and/or
  • the group R 3 is preferably chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 - 8 alkyl (e.g. sec-butyl and in particular iso-butyl), including fluor-substituted methyl groups (e.g. trifluoromethyl and CHF 2 )
  • cyclopropoxy, cyclobutoxy or cyclopentoxy -CIB- cycloalkyl, -O-CH 2 cycloalkyl, -O-cycloalkyl, -NH-cycloalkyl, -N(C 1 -C 3 )-cycloalkyl, - NH-heteroalkyl, -N(C 1 -C 3 )-heteroalkyl, heterocyclyl (e.g. oxirane), -CH 2 -heterocyclyl, - O-CH 2 heterocyclyl (e.g.
  • R 1 is preferably chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 3 or C 4 cycloalkyl, CF 3 , C 1 -C 8 alkoxy, amine (- MB) or C 1 -C 2 substituted amine (e.g., dimethylamine or diethylamine) and cyano; and
  • R 2 is preferably chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 1 -C 8 alkoxy, cycloalkyl, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine); and
  • the group R 3 is preferably chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 - 8 alkyl (e.g. sec-butyl and in particular iso-butyl), including fluor-substituted methyl groups (e.g. trifluoromethyl and CHF 2 ), C 1 -C 8 alkoxy, -O-CF 3 , methoxyethyloxy (-0-(CH 2 ) 2 -C)-CIB) or difluoroethoxy (-O-CH 2 - CHF 2 ), cycloalkyl (e.g.
  • cyclopropoxy, cyclobutoxy or cyclopentoxy -CH 2 cycloalkyl, - O-CH 2 cycloalkyl, -O-cycloalkyl, -MI-cycloalkyl, -N(C 1 -C 3 )-cycloalkyl, -MI- heteroalkyl, -N(C 1 -C 3 )-heteroalkyl, heterocyclyl (e.g. oxirane), -CH 2 -heterocyclyl, -O- CH 2 -heterocyclyl (e.g.
  • each such atom Q can independently be a carbon atom or a nitrogen atom, preferably such that, when two such atoms Q are present in an aliphatic ring A as described herein, at least one such atom Q is a nitrogen atom and more preferably such that both such atoms Q in said aliphatic ring A are each a nitrogen atom.
  • said group R 4 when present, is preferably chosen from the group consisting of H or halogen (F, Cl, Br or I, and preferably F or Cl).
  • each such group R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 and/or R 12 when present, is preferably independently chosen from the group consisting of hydrogen, methyl, ethyl, fluor (F), CF 3 or isopropyl.
  • the compounds of the invention will have an affinity for AT2R (as measured according to the protocol set out in Example 2 below) that is better than 1.0 x 10 -5 M (i.e. better than 10 micromolar), preferably better than 1.0 x 10 -6 M (i.e. better than 1 micromolar), more preferably better than 1.0 x 10 -7 M (i.e. better than 0.1 micromolar), even more preferably better than 1.0 x 10 -8 M (i.e.
  • the invention relates to: a compound of the invention (as further described herein) that has an affinity for AT2R (measured according to the protocol set out in Example 2 below) that is better than 10 micromolar, preferably better than 1 micromolar, more preferably better than 0.1 micromolar, even more preferably better than 10 nanomolar; and in particular: a compound of Formula I (as further described herein) that has an affinity for AT2R (measured according to the protocol set out in Example 2 below) that is better than 10 micromolar, preferably better than 1 micromolar, more preferably better than 0.1 micromolar, even more preferably better than 10 nanomolar; and more in particular: a compound of Formula IV (as further described herein) that has an affinity for AT2R (measured according to the protocol set out in Example 2 below) that is better than 10 micromolar, preferably better than 1 micromolar, more preferably better than 0.1 micromolar, even more preferably better than 10 nanomolar; and
  • the invention relates to a compound of the invention (as further described herein) in which: (i) the Aromatic Ring System [C], the Aliphatic Ring [A], the Aromatic Ring [B] and the acidic substituent [D] are each as further described herein; and (ii) the substituent(s) that are present in such a compound of the invention (in which each such substituent can independently be as further described herein for the particular substituent involved) as well as the particular combination of such substituents that is present in said compound of the invention; and (iii) m and n (which as described herein can each independently be 0 or 1), are each such that (and are in combination such that) said compound of the invention has an affinity for AT2R (measured according to the protocol set out in Example 2 below) that is better than 10 micromolar, preferably better than 1 micromolar, more preferably better than 0.1 micromolar, even more preferably better than 10 nanomolar.
  • AT2R affinity for AT2R
  • the invention relates to such a compound of the invention in which each of the substituents R 1, R 2, R 3 and R 4 on the aromatic ring [B] (when such substituent(s) are present on the aromatic ring [B], in accordance with the further definitions given herein) as well as the particular combination of such substituents R 1, R 2, R 3 and R 4 that is present on the aromatic ring [B], are each such that (and are in combination such that) said compound of the invention has an affinity for AT2R (measured according to the protocol set out in Example 2 below) that is better than 10 micromolar, preferably better than 1 micromolar, more preferably better than 0.1 micromolar, even more preferably better than 10 nanomolar.
  • the invention relates to: a compound of Formula I (as further described herein) in which: (i) the Aromatic Ring System [C], the Aliphatic Ring [A] and the acidic substituent [D] are each as further described herein; and (ii) each of X, Y and Z, as well as the particular combination of the atoms X, Y and Z that is present in said compound of Formula I; and (iii) each of the substituents R 1. R 2. R 3 and R 4 (when present) as well as the particular combination of such substituents R 1. R 2.
  • R 3 and R 4 that is present in said compound of Formula I; and (iv) m and n (which as described herein can each independently be 0 or 1); and (v) each of the substituents R A , R B , R C and R D (when present) as well as the particular combination of such substituents R A , R B , R C and R D that is present in said compound of Formula I; and (vi) any further substituents that are present in such a compound of Formula I (e.g.
  • R 3 and R 4 (when present) as well as the particular combination of such substituents R 1, R 2 , R 3 and R 4 that is present in said compound of Formula II; and (iii) m and n (which as described herein can each independently be 0 or 1); and (iv) each of the substituents R A , R B , R C and R D (when present) as well as the particular combination of such substituents R A , R B , R C and R D that is present in said compound of Formula II; and (v) any further substituents that are present in such a compound of Formula II (e.g.
  • each of the substituents R 5 to R 12 (when present) as well as the particular combination of such substituents R 5 to R 12 that is present in said compound of Formula V; and (vi) m and n (which as described herein can each independently be 0 or 1); and
  • each of the substituents R A , R B , R C and R D (when present) as well as the particular combination of such substituents R A , R B , R C and R D that is present in said compound of Formula V; and (viii) any further substituents that are present in such a compound of Formula V (e.g.
  • a substituent can also be a hydrogen atom (i.e., meaning that the relevant position in the compound of the invention is not substituted) provided the definition of said substituent, the further description of the relevant compound and/or the context allows.
  • the Aromatic Ring System C can be a monocyclic, bicyclic or polycyclic ring system, provided that at least one of the rings which is present in the ring system is an aromatic ring. According to a preferred aspect, essentially all of the rings that are present in the Aromatic Ring System C, are aromatic rings (although this is not critical).
  • Aromatic Ring System C is not critical as long as the Aromatic Ring System C contains at least one aromatic ring, it is preferred that the Aromatic Ring System C is a monocyclic or bicyclic ring system.
  • Aromatic Ring System C is suitably linked to the Aliphatic Ring A (i.e., either directly or via an alkylene linking group as defined herein and in particular a methylene linking group, both as defined herein) at a ring atom that forms part of an aromatic ring that is present within the Aromatic Ring System C.
  • the ring atoms that make up the Aromatic Ring System C can suitably consist entirely out of carbon atoms, or alternatively the Aromatic Ring System C can suitably comprise one or more hetero-atoms (in which any hetero-atoms that are present are preferably each independently but suitably chosen from N, S or O).
  • the Aromatic Ring System C suitably contains at least one hetero-atom
  • each of the rings that make up the Aromatic Ring System C can suitably contain no hetero-atoms or suitably contain one or more hetero- atoms, provided that the total number of hetero-atoms in the entire Aromatic Ring System C is at least one.
  • the number of hetero-atoms in the Aromatic Ring System C will usually depend on the total number of rings in the Aromatic Ring System C and the number of atoms in each ring.
  • a 5-membered ring that forms part of the Aromatic Ring System C may suitably comprise up to three (such as 0, 1, 2 or 3) hetero-atoms and a 6-membered ring that forms part of the Aromatic Ring System C may suitably comprise up to three (such as 0, 1, 2 or 3) hetero-atoms, provided that the total number of hetero-atoms in the entire Aromatic Ring System C is at least one.
  • the Aromatic Ring System C is a bicyclic or polycyclic ring system, it is possible for two rings within the ring system to share a nitrogen atom.
  • the Aromatic Ring System C contains at least one hetero-atom and is a monocyclic ring
  • the total number of hetero-atoms in the Aromatic Ring System C can suitably be 1, 2 or 3.
  • said hetero-atoms can suitably be the same or different (with again, as mentioned herein, preferably at least one of said hetero-atoms being a nitrogen atom).
  • the Aromatic Ring System C is linked to one of the atoms Q in the Aliphatic Ring A.
  • the Aromatic Ring System C is preferably linked (i.e. either directly or via an alkylene linking group as defined herein, and in particular a methylene linking group, both as defined herein) to the Aliphatic Ring A at a carbon atom that is present in the Aromatic Ring System C (which carbon atom preferably, as mentioned herein, forms part of an aromatic ring within the Aromatic Ring System C, although this is again not critical) and not via a nitrogen atom in the Aromatic Ring System C (i.e.
  • Aromatic Ring System C contains at least one nitrogen atom
  • the resulting compounds will generally not be sufficiently stable for pharmaceutical use (unless the Aromatic Ring System C is linked to the remainder of the molecule via a carbonyl linking group that is linked to such a nitrogen atom in the Aromatic Ring System C).
  • Aromatic Ring System C (i) contains at least one hetero-atom (with preferably at least one of said hetero-atoms being a nitrogen atom); and (ii) is such that it is linked to the Aliphatic Ring A (i.e.
  • Aromatic Ring System C that forms part of an aromatic ring within the Aromatic Ring System C (which ring, in case the Aromatic Ring System C is a monocyclic ring, essentially forms the Aromatic Ring System C); and (iii) is further such that said aromatic ring to which the Aliphatic Ring A is linked contains (i.e. in addition to the carbon atom to which the Aliphatic Ring A is linked) at least one (such as 1 or 2) hetero-atoms chosen from N, S and O (with preferably at least one of said hetero-atoms being a nitrogen atom).
  • Aromatic Ring System C examples of aromatic ring systems that can be present as the Aromatic Ring System C in the compounds of the invention will be clear to the skilled person based on the disclosure herein, and generally include the monocyclic, bicyclic and polycyclic aromatic ring systems referred to herein.
  • Aromatic Ring System C Some preferred but non-limiting examples of aromatic ring systems that can be present as the Aromatic Ring System C in the compounds of the invention will be clear to the skilled person based on the further disclosure herein and include:
  • An unsubstituted or suitably substituted pyrazolyl group (such as a pyrazol-3-yl group) for example:
  • An unsubstituted or substituted imidazolyl group (such as an imidazol-2-yl group or an imidazol-4-yl group) for example: l-methylimidazol-2-yl; l-methylimidazol-4-yl;
  • An unsubstituted or substituted triazolyl group (such as a 1.2.4-triazol-3-yl group) for example:
  • a pyrazine group An unsubstituted or as a or group), for example:
  • An unsubstituted or substituted pyridyl group (such as a
  • An unsubstituted or substituted thiazole group (such as a 2-thiazole group or a 4-thiazole group), for example:
  • An unsubstituted or substituted benzothiazolyl group (such as an l,3-benzothiazol-2-yl group), for example:
  • An unsubstituted or substituted pyrimidinone group (such as an pyrimidin-4-one group), for example:
  • An unsubstituted or substituted quinazolin-4-on group (such as a quinazolin-4-on group), for example: quinazolin-4-on;
  • An unsubstituted or substituted quinolinone group (such as a quinolin-2-on group), for example:
  • An unsubstituted or substituted bicyclic pyrimidinone group for example: l-methyl-7H-pyrazolo[3,4-d]pyrimidin-4-one;
  • the Aromatic Ring System C can also be suitably substituted (as defined herein) by one or more (such as 1, 2, 3 or 4) suitable substituents on one or more (such as 1, 2, 3 or 4) suitable positions/ring atoms of the Aromatic Ring System C.
  • suitable substituents will be clear to the skilled person and for example include the substituent(s) that are present on the Aromatic Ring System C in the compounds of the invention that are illustrated in the Experimental Part below, as well as other suitable substituents mentioned herein.
  • the Aromatic Ring System C does not carry a carboxylic acid (COOH) group.
  • the total number of suitable substituents on the Aromatic Ring System C is generally not critical and will usually depend on the size of the Aromatic Ring System C and the number of ring atoms in the Aromatic Ring System C. Usually, the total number of substituents will be:
  • Aromatic Ring System C when the Aromatic Ring System C is a monocyclic 5-membered ring: 0, 1, 2 or 3, and preferably 0, 1 or 2;
  • Aromatic Ring System C when the Aromatic Ring System C is a monocyclic 6-membered ring: 0, 1, 2 or 3, and preferably 0, 1 or 2;
  • Aromatic Ring System C when the Aromatic Ring System C is a bicyclic ring system: 0, 1, 2, 3, 4 or 5, and preferably 0, 1, 2 or 3;
  • each of the one or more substituents on the Aromatic Ring System C is each suitably and independently chosen from one or more of: methyl, ethyl, cyclopropyl, methoxy, trifluorom ethyl, cyano/nitrile, a halogen atom (in particular fluorine or chlorine), a C 1 -C 4 amine or an oxygen atom (i.e. so as to form, together with the carbon atom to which said oxygen is linked, a carbonyl group where said carbon atom is capable of forming such a carbonyl group).
  • a halogen atom in particular fluorine or chlorine
  • a C 1 -C 4 amine or an oxygen atom i.e. so as to form, together with the carbon atom to which said oxygen is linked, a carbonyl group where said carbon atom is capable of forming such a carbonyl group.
  • the Aromatic Ring System C is either: a monocyclic 5- or 6- membered aromatic ring system, and preferably a monocyclic 5- or 6- membered aromatic ring system that comprises at least one nitrogen atom; or a bicyclic aromatic ring system (as defined herein) in which each ring is a 5-membered and/or a 6-membered aromatic ring (i.e. such that the entire bicyclic ring system forms a conjugated planar ring system), and preferably a bicyclic aromatic ring system in which each ring is a 5-membered or 6-membered aromatic ring and in which the aromatic ring to which the Aliphatic Ring [A] is linked comprises at least one nitrogen atom.
  • Aromatic Ring System C when the Aromatic Ring System C is a monocyclic or bicyclic aromatic ring system that is comprised of one or two 5- and/or 6-membered rings, respectively, it is preferably such that it suitably comprises at least one hetero-atom (with each such hetero-atom preferably being independently but suitably chosen from O, N or S, with preferably at least one of the hetero- atoms present being a nitrogen atom), with the total number of hetero-atoms in the Aromatic Ring System C preferably being 1 or 2 in case of a monocyclic ring system and preferably being 1, 2, 3 or 4 in case of a bicyclic ring system.
  • Aromatic Ring System C that is comprised of one or two 5- and/or 6-membered rings, respectively, is preferably further such that the Aliphatic Ring A is linked (i.e.
  • Aromatic Ring System C either directly via a covalent bond or via an alkylene linking group as further described herein) to a carbon atom within the Aromatic Ring System C, which carbon atom forms part of an aromatic ring within the Aromatic Ring System C (which ring, in case the Aromatic Ring System C is a monocyclic ring, essentially forms the Aromatic Ring System C), in which said aromatic ring contains, in addition to said one carbon atom to which the Aliphatic Ring A is linked, at least one (such as 1 or 2) hetero-atoms chosen from N, S and O (with preferably at least one of the hetero-atoms present being a nitrogen atom).
  • Aromatic Ring System C Some non-limiting examples of aromatic ring systems that can be present in the compounds of the invention as the Aromatic Ring System C include the following (in which it should be understood that: (i) when, in the following Tables A, B, C and D, reference is made to the atom “ A” or “Q” and to the groups R, R 1 , R 2 , R 3 and R 4 , such atoms A and Q and such groups R, R 1 , R 2 , R 3 and R 4 are as defined in said Tables A to D; and (ii) that the definitions of the atoms A and Q and of the groups R, R 1 , R 2 , R 3 and R 4 that are given in the Tables A to D below only apply to the structures shown in said Tables and not to any other atoms, groups, structures or formulas set out in the present description): Table A Table A (continued): with some specific examples including the following ring systems:
  • Table B Table B (continued): and with some preferred examples including the following ring systems: Table C: and with the following rings systems being particularly preferred:
  • the Aromatic Ring System C is chosen from the group consisting of the aromatic rings/ring systems of Formulae VII to LXXXIII.
  • the Aromatic Ring System C is chosen from the group consisting of the aromatic rings/ring systems of Formulae LIX to LXXXIII. According to a particularly preferred but non-limiting aspect of the invention, the Aromatic Ring System C is chosen from the group consisting of the aromatic rings/ring systems of Formulae LXXIII to LXXXIII.
  • the invention relates to: a compound of the invention (as further described herein) in which the Aromatic Ring System C is chosen from the group consisting of the aromatic rings/ring systems of Formulae VII to LXXXIII, preferably from the group consisting of the aromatic rings/ring systems of Formulae LIX to LXXXIII, and more preferably from the group consisting of the aromatic rings/ring systems of Formulae LXXIII to LXXXIII; and in particular: a compound of Formula I (as further described herein) in which the Aromatic Ring System C is chosen from the group consisting of the aromatic rings/ring systems of Formulae VII to LXXXIII, preferably from the group consisting of the aromatic rings/ring systems of Formulae LIX to LXXXIII, and more preferably from the group consisting of the aromatic rings/ring systems of Formulae LXXIII to LXXXIII; and more in particular: a compound of Formula IV (as further described herein) in which the Aromatic Ring System C is chosen from the group consisting of the aromatic rings
  • a compound of the invention according to any of the preceding aspects is preferably further such that such compound has an affinity for AT2R (measured according to the protocol set out in Example 2 below) that is better than 10 micromolar, preferably better than 1 micromolar, more preferably better than 0.1 micromolar, even more preferably better than 10 nanomolar (and for the remainder is as further described herein).
  • aromatic rings/ring systems shown as Formulae VII to LXXXIII are present as the Aromatic Ring System C in a compound of the invention, such aromatic ring or ring system can suitably be substituted (or, in case of an aromatic ring of Formulae VII to LXXXIII that already carries one or more substitutions, suitably further substituted) with one or more (such as 1, 2 or 3) further substituents (in which suitable substituents will be clear to the skilled person and for example include the substituent(s) that are present on the Aromatic Ring System C in the compounds of the invention that are illustrated in the Experimental Part below, as well as other suitable substituents mentioned herein).
  • Aromatic Ring System C for each of the aromatic rings/ring systems shown as Formulae VII to LXXXIII, it is generally preferred that these are present as the Aromatic Ring System C in a compound of the invention without any such (additional) substituents, in particular where such an aromatic ring or ring system is shown, in one of Formulae VII to LXXXIII, to already carry one or more substituents. Also, in a specific but non-limiting embodiment of the invention, the Aromatic Ring System C does not carry a carboxylic acid (COOH) group.
  • COOH carboxylic acid
  • the aromatic ring or ring system that is present as the Aromatic Ring System C in a compound of the invention preferably consists of one of the aromatic rings/ring systems having the structure set out in Formulae VII to LXXXIII, more preferably of one of the aromatic rings/ring systems having the structure set out in Formulae LIX to LXXXIII, and most preferably of one of the aromatic rings/ring systems having the structure set out in Formulae LXXIII to LXXXIII.
  • Aromatic Ring C is linked, either directly via a covalent bond but preferably via an alkylene linking group (as defined herein, and which as mentioned herein may also be a carbonyl group) and in particular a methylene linking group (as defined herein), to an aliphatic ring, which aliphatic ring is as further described herein and which, as mentioned, is also referred to as “Aliphatic Ring A” or “Ring A” and also denoted as/by “[A]”.
  • the Aliphatic Ring A is generally a 5-, 6-, 7-, 8-, 9- or 10-membered ring, and is preferably a 5-, 6- or 7-membered ring, and is most preferably a 6-membered ring, in which said ring is essentially comprised of carbon atoms and one or more (such as 1 or 2) hetero- atoms (said hetero-atoms, when present, preferably each being independently chosen from O, S and N, but most preferably being nitrogen atoms, as further described herein). It is also not excluded that the Aliphatic Ring A may also suitably contain one or more double bonds (provided that the presence of these bonds do not make the Aliphatic Ring A into an aromatic ring system), but preferably Ring A is fully saturated (i.e. without any double bonds in the ring) as it is expected that compounds that contain an unsaturated Ring A will usually not be sufficiently stable for pharmaceutical use.
  • the Aliphatic Ring A is preferably a monocyclic ring, but as further described herein may also be a bridged monocyclic ring that suitably comprises a suitable alkylene bridge (as defined herein) that comprises 1 or 2 carbon atoms, such that the Aliphatic Ring A forms part of a “bicyclo”-type structure that comprises between 7 and 12 atoms in total (including the alkylene bridge) and preferably comprises 7, 8 or 9 atoms in total (including the alkylene bridge).
  • a suitable alkylene bridge as defined herein
  • the Aliphatic Ring A may comprise a cyclohexane, piperidine or piperazine ring that suitably comprises a suitable alkylene bridge (as defined herein) that comprises 1 or 2 carbon atoms (for example, suitably bridging positions “2” and “6”, positions “2” and “5”, positions “3” and “6” or positions “3” and “5” in the Aliphatic Ring A, such as 3,8-diazabicyclo[3.2.1]octane and 2,5- diazabicyclo[2.2.1]heptane (see also Formulae LXXXV and XCII herein).
  • a suitable alkylene bridge as defined herein
  • compounds A- 189 and A- 190 provide some specific but non- limiting example of compounds of the invention that comprise a bridged Aliphatic Ring A.
  • aliphatic 5-, 6-, 7-, 8-, 9- and 10- membered aliphatic ring systems in which two of the ring atoms are suitably “bridged” by a covalent bond so as to form a system that comprises two fused rings that share said two “bridged” atoms are also deemed to be bridged ring structures for the purposes of the present description and claims.
  • Such a bridged ring structure or fused ring structure may optionally also be suitably substituted with one or more substituents that, when present, may each independently be chosen from the substituents mentioned herein for the groups R x or R y or R 5 to R 12 .
  • the Aliphatic Ring A may also be a spiro-type structure (with any such spiro structure, preferably containing between 7 and 10 atoms in total), as for example exemplified by the spiro-type structure shown as Formula C below.
  • a spiro-type structure may optionally also be suitably substituted with one or more substituents that, when present, may each independently be chosen from the substituents mentioned herein for the groups R x or R y and/or R 5 to R 12 .
  • the Aliphatic Ring A is linked (either directly or via a alkylene linking group as further described herein) to the Aromatic Ring System C and also linked (again either directly or via an alkylene linking group as further described herein) to the Aromatic Ring B, preferably either such that the Aromatic Ring System C is linked to the Aliphatic Ring A via an alkylene linking group (with the Aromatic Ring B being directly linked to the Aliphatic Ring A) or such that the Aromatic Ring B is linked to the Aliphatic Ring A via an alkylene linking group (with the Aromatic Ring System C being directly linked to the Aliphatic Ring A), and more preferably such that the Aromatic Ring System C is linked to the Aliphatic Ring A via an alkylene linking group (with the Aromatic Ring B being directly linked to the Aliphatic Ring A).
  • the alkylene linking group is preferably a methylene linking group (i.e. as represented in Formulae I to VI as “C (m) R A R B ” and “C (n) R C RD”, respectively).
  • the Aromatic Ring System C and the Aromatic Ring B are most preferably linked to the Aliphatic Ring A at atoms in the Aliphatic Ring A that are opposite to each other (as defined herein) in said Aliphatic Ring A.
  • the Aliphatic Ring A is preferably such that it contains at least one nitrogen atom, which nitrogen atom is linked (either directly or via a methylene linking group as further described herein) to either the Aromatic Ring System C or the Aromatic Ring B. More preferably, the Aliphatic Ring A is such that it contains two nitrogen atoms, with one of said nitrogen atoms being linked (either directly or via a methylene linking group as further described herein) to the Aromatic Ring System C and the other of said nitrogen atoms being linked (either directly or via a methylene linking group as further described herein) to the Aromatic Ring B.
  • the ring atoms in Ring A to which the Aromatic Ring System C and the Aromatic Ring B, respectively, are linked are most preferably positioned opposite to each other (as defined herein) in the Aliphatic Ring A.
  • an Aliphatic Ring A as described herein consists of carbon atoms and 0, 1 or 2 (and preferably 1 or 2 and more preferably 2) nitrogen atoms, in particular such that the Aliphatic Ring A contains a total of 5, 6 or 7 (and preferably 6) ring atoms (excluding any carbon atoms that are present in an alkylene bridge if an alkylene bridge is present).
  • the Aliphatic Ring A can have an overall structure that can be schematically represented as follows (Scheme C):
  • each C when present, represents a carbon atom; and each Q is independently a carbon atom or a nitrogen atom, preferably such that at least one atom Q is a nitrogen atom, and more preferably such that both atoms Q are nitrogen atoms; and
  • each carbon atom C carries a group R x and a group R y , in which each group R x that is present can independently be hydrogen or a suitable substituent (in which said substituent is preferably chosen from hydrogen, methyl, ethyl, halogen (in particular fluor (F)), CF 3 and isopropyl) and each group R y that is present can independently be hydrogen or a substituent chosen from a suitable substituent (in which said substituent is preferably chosen from hydrogen, methyl, ethyl, halogen (in particular fluor (F)), CF 3 and isopropyl).
  • the Ring A can also be a ring that is suitably bridged by an alkylene bridge (as defined herein, but not shown in Scheme C) or a covalent bond (also not shown in Scheme C), in which one end of said alkylene bridge or covalent bond is linked to one of the carbon atoms that make up the carbon chain represented by C (V) and the other end of said alkylene bridge or covalent bond is linked to one of the carbon atoms that make up the carbon chain represented by C (W) .
  • an alkylene bridge as defined herein, but not shown in Scheme C
  • a covalent bond also not shown in Scheme C
  • Ring A when Ring A is bridged by an alkylene bridge, one of the R x or R y on the carbon chain represented by C (V) and one of the R x or R y on the carbon chain represented by Q (W) will be replaced by the alkylene bridge; and when Ring A is bridged by a covalent bond, one of the R x or R y on the carbon chain represented by C (V) and one of the R x or R y on the carbon chain represented by (W) will be replaced by said covalent bond.
  • the Ring A is not substituted with an oxygen atom (i.e. so as to form a carbonyl group with the ring carbon atom to which said oxygen is bound).
  • Ring A can also be a spiro-type structure (with any such spiro structure, preferably containing between 7 and 10 atoms in total), as for example exemplified by the spiro-type structures shown as Formula C below.
  • each carbon atom in such a spiro-type structure may also suitably carry a group R x and/or a group R y as defined herein.
  • the Aliphatic Ring A is linked, at one of the atoms Q in the Aliphatic Ring A, to the Aromatic Ring System C and is also linked, at the other of the atoms Q in the Aliphatic Ring A, to the Aromatic Ring B.
  • the two atoms Q are preferably at positions in the Aliphatic Ring A that are opposite to each other (as further defined herein).
  • the Aromatic Ring System C is preferably linked to the ring atom of the Aliphatic Ring A that is at position “1” and the Aromatic Ring B is preferably linked to the ring atom of the Aliphatic Ring A that is at position “4” (with the numbering of the positions/atoms in the Aliphatic Ring A being as described herein).
  • the Aromatic Ring System C is preferably linked to the ring atom of the Aliphatic Ring A that is at position “1” and the Aromatic Ring B is preferably linked to the ring atom of the Aliphatic Ring A that is at position “4” or at position “5” (with the numbering of the positions/atoms in the Aliphatic Ring A being as described herein).
  • the Aliphatic Ring A may be directly linked to the Aromatic Ring System C (i.e. via a covalent bond between one of the atoms Q and a ring atom in the Aromatic Ring System C) or via an alkylene linking group (as defined herein) and in particular a methylene linking group (as defined herein) which links an atom Q in the Aliphatic Ring A to a ring atom in the Aromatic Ring System C (in which, as further described herein, said ring atom in the Aromatic Ring System C is preferably a carbon atom which is present within an aromatic ring in said Aromatic Ring System C, which aromatic ring preferably contains at least one hetero-atom and in particular at least one nitrogen atom).
  • the Aliphatic Ring A may be directly linked to the Aromatic Ring B (i.e. via a covalent bond between the other atom Q and a ring atom in the Aromatic Ring B) or via an alkylene linking group (as defined herein) and in particular a methylene linking group (as defined herein) which links the other atom Q in the Aliphatic Ring A to a ring atom in the Aromatic Ring B (in which, as further described herein, said ring atom in the Aromatic Ring B is in an ortho position relative to the Acidic Substituent D).
  • the Aliphatic Ring A will be a 6- membered ring.
  • each carbon atom can optionally (and independently) be substituted with one or two suitable substituents, which are preferably and independently chosen from hydrogen, methyl, ethyl, halogen (in particular fluor (F)), CF 3 and isopropyl.
  • Such a 6-membered ring can also be schematically represented by the following structure (Scheme D), in which the optional substituents are indicated as R 5 to R 12 :
  • each Q is independently a carbon atom or a nitrogen atom, preferably such that at least one Q is a nitrogen atom, and more preferably such that both atoms Q are nitrogen atoms; and: each of R 5 , R 5 , R 7 , R 8 , R 9 , R 10 , R 11 and R 12 are preferably independently chosen from the group consisting of hydrogen, methyl, ethyl, halogen (in particular fluor (F)), CF 3 and isopropyl.
  • the Aliphatic Ring A may for example be: an (optionally suitably substituted) cyclohexane ring, to which the Aromatic Ring System C is linked (i.e. either directly or via an alkylene linking group and in particular a methylene linking group, both as defined herein) at the “1” position of the cyclohexane ring and the Aromatic Ring B is linked (i.e.
  • Aromatic Ring System C is linked (i.e. either directly or via an alkylene linking group as defined herein) to the nitrogen atom of the piperidine ring and the Aromatic Ring B is linked (i.e.
  • the Aliphatic Ring A may be a ring system of one of Formulae XCIX or C:
  • Formula XCIX Formula C: in which said ring system of Formula XCIX or Formula C may optionally be suitably substituted with one or more suitable substituents that, when present, are each preferably independently chosen from the group consisting of hydrogen, methyl, ethyl, halogen (in particular fluor (F)), CF 3 and isopropyl.
  • Aliphatic Ring A Some non-limiting examples of aliphatic rings that can be present in the compounds of the invention as the Aliphatic Ring A include the following:
  • Table E Table E (continued): As will be clear to the skilled person based on the disclosure herein as well as the compounds of the invention that are exemplified in the Experimental Part below, the Aliphatic Ring A (in its various aspects as disclosed herein) can be unsubstituted or substituted. As will also be clear to the skilled person when the Aliphatic Ring A is unsubstituted, each R x and R y in Scheme C, and each of R 5 to R 12 in Scheme D will be a hydrogen atom.
  • each substituent that is present can generally be independently chosen from the group consisting of methyl, ethyl, fluor (F), CF 3 and isopropyl (and are preferably independently chosen from the group consisting of methyl, ethyl and isopropyl).
  • each R x and R y in Scheme C, and each of R 5 to R 12 in Scheme D can be independently chosen from the group consisting of hydrogen, methyl, ethyl, fluor (F), CF 3 and isopropyl (and are preferably independently chosen from the group consisting of methyl, ethyl and isopropyl), provided that: (i) with respect to Scheme C, at least one of the groups R x and R y is chosen from the group consisting of methyl, ethyl, fluor (F), CF 3 and isopropyl (and is preferably chosen from the group consisting of methyl, ethyl and isopropyl); and/or that: (ii) with respect to Scheme D, at least one of the groups R 5 to R 12 is chosen from the group consisting of methyl, ethyl, fluor (F), CF 3 and isopropyl (and is
  • each of said substituents can suitably be present on different carbon atoms in the Aliphatic Ring A, but it is also possible that one carbon atom in the Aliphatic Ring A suitably carries two such substituents (provided that such carbon atom can suitably carry two substituents). It will also be clear to the skilled person that, where a carbon atom in the Aliphatic Ring A carries a single substituent, that such carbon atom may in addition also suitably carry a hydrogen atom.
  • the maximum number of substituents that can be present on the Aliphatic Ring A will depend on the number of carbon atom that are present in the Aliphatic Ring A and on the number of substituents that each such carbon atom can carry.
  • the maximum number of substituents that can be present on Ring A is 8 (i.e. when each of R 5 to R 12 is a substituent as described herein).
  • the total number of substituents on Ring A will be 0, 1, 2, 3, 4, 5 or 6, preferably 0, 1, 2, 3 or 4, and more preferably 0, I or 2.
  • substituents can be the same or different, and can be present on different carbon atoms in the Aliphatic Ring A, but it is also possible that one carbon atom in the Aliphatic Ring A suitably carries two such substituents (provided that such carbon atom can suitably carry two substituents).
  • the total number of substituents on Ring A will be 0, I, 2, 3 or 4 (and is preferably 0, I or 2), in which any substituents that are present on the Aliphatic Ring A are preferably independently chosen from methyl, ethyl and isopropyl (and are preferably methyl).
  • substituents can be the same or different, and can be present on different carbon atoms in the Aliphatic Ring A, but it is also possible that one carbon atom in the Aliphatic Ring A suitably carries two such substituents (provided that such carbon atom can suitably carry two substituents).
  • the Aliphatic Ring A when the Aliphatic Ring A is substituted with one or more substituents as described herein, said substituents can be suitably present on any carbon atom in the Aliphatic Ring A that can suitably carry one or more such substituents.
  • said substituents when the Aliphatic Ring A is substituted with one or more substituents as described herein, at least one of these substituents is present on a carbon atom that, in Ring A, is adjacent to the carbon or nitrogen atom (and preferably nitrogen atom) in the Aliphatic Ring A to which the Aromatic Ring System C is linked.
  • the Aliphatic Ring A carries 1, 2, 3 or 4 such substituents (as described herein), and in particular 1 or 2 such substituents, all said substituents are suitably present on one or both of the carbon atoms that in Ring A, are adjacent to the carbon or nitrogen atom (and preferably nitrogen atom) in the Aliphatic Ring A to which the Aromatic Ring System C is linked.
  • substituents are preferably independently chosen from methyl, ethyl and isopropyl, and are most preferably methyl.
  • the Aliphatic Ring A is unsubstituted or is substituted with 1 or 2 substituents (and preferably one substituent) chosen from methyl, ethyl and isopropyl (and that preferably is/are methyl), in which said substituent(s) are present on the carbon atom(s) in the Aliphatic Ring A that are adjacent to the carbon or nitrogen atom (and preferably nitrogen atom) in the Aliphatic Ring A to which the Aromatic Ring System C is linked.
  • 1 or 2 substituents and preferably one substituent chosen from methyl, ethyl and isopropyl (and that preferably is/are methyl
  • compositions of the invention relate to compounds of the invention (and in particular compounds of Formula I, II, III, IV, V or VI) in which the Aliphatic Ring A is unsubstituted or substituted as described herein (and in particular as described in the preceding paragraphs), in which such a compound of the invention is preferably further such that such compound has an affinity for AT2R (measured according to the protocol set out in Example 2 below) that is better than 10 micromolar, preferably better than 1 micromolar, more preferably better than 0.1 micromolar, even more preferably better than 10 nanomolar (and for the remainder is as further described herein).
  • AT2R affinity for AT2R
  • the Aromatic Ring B will generally be a 6-membered aromatic ring that comprises carbon atoms and may optionally (and suitably) contain 1, 2 or 3 nitrogen atoms, provided that the Aromatic Ring B is at least still such that it can carry the Acidic Substituent D in a position ortho relative to the Aliphatic Ring A (i.e. as further described herein). Also, when the Aromatic Ring B contains one or more nitrogen-atoms, it is preferably further such that it can still carry the one or more substituents or combination of such substituents that are described herein as being preferably present on the Aromatic Ring B (i.e.
  • Aromatic Ring B Some preferred examples of aromatic rings that can form the 6-membered ring within the Aromatic Ring B are phenyl (benzene), pyridyn-2-yl and l,4-pyrimidin-2-yl, with phenyl being most preferred.
  • the Aromatic Ring B will be a 6-membered ring, although in the invention in its broadest sense, it is not excluded that the Aromatic Ring B may be a 5-membered aromatic ring (which may optionally also suitably contain 1 or 2 hetero-atoms chosen from O, N or S), provided that such a 5-membered aromatic ring is such that it can still carry the one or more substituents or combination of such substituents that are described herein as being preferably present on a 6-membered Aromatic Ring B.
  • the Aromatic Ring B may be a 5-membered aromatic ring (which may optionally also suitably contain 1 or 2 hetero-atoms chosen from O, N or S), provided that such a 5-membered aromatic ring is such that it can still carry the one or more substituents or combination of such substituents that are described herein as being preferably present on a 6-membered Aromatic Ring B.
  • the resulting 5-membered Aromatic Ring B is preferably such that it is a bio- isostere of the 6-membered Aromatic Rings B described herein, and more preferably a bio- isostere of the 6-membered Aromatic Ring B represented by Scheme E, even more preferably a bioisostere of the 6-membered Aromatic Ring B represented by Scheme F, and most preferably a bioisostere of the 6-membered Aromatic Ring B represented by Scheme G.
  • the Aromatic Ring B will most preferably be a monocyclic ring, as the use of a bicyclic aromatic ring system as the Aromatic Ring B will often result in a compound that cannot suitably comprise the preferred substituents that are described herein for the Aromatic Ring B (such as an isobutyl group in position 5 and a fluorine in one of positions 3 or 4).
  • the Aromatic Ring B will carry an acidic substituent (i.e. the Acidic Substituent D) on a carbon atom of Ring B that is adjacent to the carbon atom at which the Aliphatic Ring A is linked to the Aromatic Ring B.
  • Said Acidic Substituent D can be any suitable acidic group or substituent (with suitable group s/substituents being clear to the skilled person based on the disclosure herein, optionally after a limited degree of trial- and-error) and is preferably chosen from the group consisting of a carboxylic acid group (i.e.
  • acylsulfonamide groups such as, for example and without limitation, an acylsulfonamide group of the general formula CONHSO 2 R or SO 2 NHCOR wherein R is -C 1 -C 8 alkyl, CH 2 (C 1 -C 8 cycloalkyl), CH 2 heterocyclyl with 1-6 ring atoms),C 1 -C 8 alkoxy or C 1 -C 8 amine), a tetrazole group or a group that is a bioisostere (as defined herein) of a tetrazole group (such as, for example and without limitation, a AH- 1,2,4- oxadiazol-5-one group) and is more preferably tetrazole or a bioisostere thereof, and most preferably tetrazole.
  • a bioisostere as defined herein
  • Aromatic Ring B will preferably carry at least one further substituent that is chosen from the group consisting of: methyl, ethyl, propyl, isopropyl, cyclopropyl, methylcyclopropyl, n-butyl, sec-butyl, isobutyl, cyclobutyl, methylcyclobutyl, vinyl, allyl, isobutenyl, trifluoromethyl, methoxy, ethoxy, n-propoxy, isopropoxy, isobutoxy, difluoroethoxy, methoxyethyloxy, fluorine, chlorine, cyano, oxirane, cyclopropoxy, cyclobutoxy, cyclopentoxy, N-acetyl, substituted and unsubstituted carbamoyl, which substituent (when present) is most preferably present on a carbon atom in the Ring B that is in a position para to the position In Ring B of the carbon
  • Aromatic Ring B is a 6-membered aromatic ring such as a phenyl ring
  • said substituent will form the substituent R 3 as indicated in Schemes E and F below and some of the further Schemes and Formulae provided herein.
  • Said substituent is preferably an isobutyl group, as for example illustrated by the compounds of Formulae III and VI.
  • Aromatic Ring B may optionally be further suitably substituted with one or more (such as 1 or 2) suitable substituents (as defined herein), which substituents are indicated as R 1 , R 2 and R 4 in Schemes E to G and Formulae I to VI herein.
  • Aromatic Ring B has an overall structure that can be schematically represented as follows (Scheme E):
  • the acidic substituent denoted by [D] is chosen from the group consisting of a carboxylic acid (-COOH) group, an acylsulfonamide group (such as an acylsulfonamide group of the general formula CONHSO 2 R or SO 2 NHCOR wherein R is -C 1 -C 8 alkyl, CH 2 (C 1 -C 8 cycloalkyl), CH 2 (heterocyclyl with 1-6 ring atoms), C 1 -C 8 alkoxy or C 1 -C 8 amine), a tetrazole group or a group that is a bioisostere (as defined herein) of a tetrazole group (such as, for example and without limitation, a AHA ,2,4-oxadiazol-5-one group), and is more preferably tetrazole or a bioisostere thereof, and most preferably tetrazole; and:
  • - X and Y are each either a nitrogen atom or a carbon atom, such that either both X and Y are carbon atoms or only one or X or Y is a nitrogen atom (with the other of X and Y being a carbon atom); and:
  • - Z is a nitrogen atom or a carbon atom
  • R 1 when present, is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 3 or C 4 cycloalkyl, CF 3 , C 1 -C 8 alkoxy, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine) and cyano; and:
  • R 2 when present, is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 1 -C 8 alkoxy, cycloalkyl, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine); and:
  • R 3 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 - 8 alkyl (e.g. sec-butyl and in particular iso-butyl), including fluor-substituted methyl groups (e.g. trifluoromethyl and CHF 2 ), C 1 -C 8 alkoxy, -O-CF 3 , methoxyethyloxy (-0-(CH 2 ) 2 -0-CH 3 ) or difluoroethoxy (-O-CH 2 -CHF 2 ), cycloalkyl (e.g.
  • cyclopropoxy, cyclobutoxy or cyclopentoxy -CH 2 cycloalkyl, -O-CH 2 cycloalkyl, -O-cycloalkyl, -NH- cycloalkyl, -N(C 1 -C 3 )-cycloalkyl, -NH-heteroalkyl, -N(C 1 -C 3 )-heteroalkyl, heterocyclyl (e.g. oxirane), -CH 2 heterocyclyl, -O-CH 2 heterocyclyl (e.g.
  • R 4 when present, is chosen from the group consisting of H or halogen (F, Cl, Br or I, and preferably F or Cl); and provided that:
  • - X, Y and Z are chosen such (i.e. each from a carbon atom or a nitrogen atom) that the resulting ring structure form an aromatic ring (i.e. a planar conjugated ring); and further provided that:
  • R 1 when X is a nitrogen atom, R 1 is not present; and further provided that:
  • R 2 when Y is a nitrogen atom, R 2 is not present; and further provided that:
  • R 4 when Z is a nitrogen atom, R 4 is not present.
  • only one of X, Y and Z is a nitrogen atom (with the others of X, Y and Z being carbon atoms), and more preferably only one of Y and Z is a nitrogen atom (with X being a carbon atom and the other of Y and Z also being a carbon atom, and even more preferably Z is a nitrogen atom (with both X and Y being carbon atoms).
  • all of X, Y and Z are carbon atoms (i.e. such that Ring B is a substituted phenyl ring without any nitrogen atoms).
  • Aromatic Ring B has an overall structure that can be schematically represented as follows (Scheme F):
  • Scheme F thus comprises or essentially consists of a phenyl ring that is substituted with the acidic substituent denoted by [D] and the substituents R 1 , R 2 , R 3 and/or R 4 , in which:
  • the acidic substituent denoted by [D] is chosen from the group consisting of a carboxylic acid (-COOH) group, an acylsulfonamide group (such as an acylsulfonamide group of the general formula CONHSO 2 R or SO 2 NHCOR wherein R is -C 1 -C 8 alkyl, CH 2 (C 1 -C 8 cycloalkyl), CH 2 (heterocyclyl with 1-6 ring atoms), C 1 -C 8 alkoxy or C 1 -C 8 amine), a tetrazole group or a group that is a bioisostere (as defined herein) of a tetrazole group (such as, for example and without limitation, a 4H-1 ,2,4-oxadiazol-5-one group), and is more preferably tetrazole or a bioisostere thereof, and most preferably tetrazole; and:
  • R 1 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 3 or C 4 cycloalkyl, CF 3 , C 1 -C 8 alkoxy, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine) and cyano; and:
  • R 2 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 1 -C 8 alkoxy, cycloalkyl, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine); and:
  • R 3 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -8 alkyl (e.g. sec-butyl and in particular iso-butyl), including fluor-substituted methyl groups (e.g. trifluoromethyl and CHF 2 ), C 1 -C 8 alkoxy, -O-CF 3 , methoxyethyloxy (-0-(CH 2 ) 2 -0-CH 3 ) or difluoroethoxy (-O-CH 2 -CHF 2 ), cycloalkyl (e.g.
  • cyclopropoxy, cyclobutoxy or cyclopentoxy -CH 2 cycloalkyl, -O-CH 2 cycloalkyl, -O-cycloalkyl, -Mi- cycloalkyl, -N(C 1 -C 3 )-cycloalkyl, -Mi-heteroalkyl, -N(C 1 -C 3 )-heteroalkyl, heterocyclyl (e.g. oxirane), -CH 2 heterocyclyl, -O-CH 2 heterocyclyl (e.g.
  • -O-CH 2 oxirane -O- heterocyclyl
  • -Mi-heterocyclyl -N(C 1 -C 3 )-heterocyclyl
  • isobutenyl or methyl substituted isobutenyl (e.g. C(CH 3 ) 2 ) and cyano; and is most preferably isobutyl (i.e. as in the compounds of the invention of Formula III and/or Formula VI); and:
  • R 4 is chosen from the group consisting of H or halogen (F, Cl, Br or I, and preferably F or Cl).
  • Aromatic Ring B has an overall structure that can be schematically represented as follows (Scheme G):
  • the acidic substituent denoted by [D] is chosen from the group consisting of a carboxylic acid (-COOH) group, an acylsulfonamide group (such as an acylsulfonamide group of the general formula CONHSO 2 R or SO 2 NHCOR wherein R is -C 1 -C 8 alkyl, CH 2 (C 1 -C 8 cycloalkyl), CH 2 (heterocyclyl with 1-6 ring atoms), C 1 -C 8 alkoxy or C 1 -C 8 amine), a tetrazole group or a group that is a bioisostere (as defined herein) of a tetrazole group (such as, for example and without limitation, a 4H-1 ,2,4-oxadiazol-5-one group), and is more preferably tetrazole or a bioisostere thereof, and most preferably tetrazole; and:
  • R 1 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 3 or C 4 cycloalkyl, CF 3 , C 1 -C 8 alkoxy, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine) and cyano; and:
  • R 2 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 1 -C 8 alkoxy, cycloalkyl, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine); and:
  • R 4 is chosen from the group consisting of H or halogen (F, Cl, Br or I, and preferably F or Cl).
  • [C] is a monocyclic or polycyclic (and preferably monocyclic or bicyclic) aromatic ring system, such that: (i) the aromatic ring system contains at least one aromatic ring; (ii) the aromatic ring system is linked to the remainder of the compound of Formula I (i.e. either directly via a covalent bond or via the alkylene linking group -C (m) R A R B - when said alkylene linking group is present) via a carbon atom that is present in said at least one aromatic ring; and (iii) said at least one aromatic ring (i.e.
  • the aromatic ring that contains the carbon atom to which the remainder of the compound of Formula I is linked) preferably contains at least one (such as 1 or 2) hetero-atom(s), which hetero-atoms (when present) are preferably each independently and suitably chosen from N, S and O and are more preferably such that at least one of the hetero-atoms (when present) is a nitrogen atom;
  • [A] is either a ring system that is as schematically represented by the following Scheme C:
  • each atom Q is independently a carbon atom or a nitrogen atom (and preferably such that at least one atom Q is a nitrogen atom, and more preferably such that both atoms Q are nitrogen atoms), v is an integer between 1 and 4 (i.e. 1, 2, 3 or 4) and w is an integer between 1 and 4 (i.e.
  • each R x that is present and each R y that is present is preferably independently chosen from the group consisting of hydrogen, methyl, ethyl, fluor (F), CF 3 and isopropyl; and in particular a ring system that is as schematically represented by the following Scheme D:
  • each atom Q is independently a carbon atom or a nitrogen atom (and preferably such that at least one atom Q is a nitrogen atom, and more preferably such that both atoms Q are nitrogen atoms) and each of R 5 , R 5 , R7, R 5 , R 9 , R 10 , R 11 and R 12 are preferably independently chosen from the group consisting of hydrogen, methyl, ethyl, fluor (F), CF 3 and isopropyl; or alternatively a ring system of formula XCIX or C
  • Formula C in which said ring system of Formula XCIX or Formula C may optionally be suitably substituted with one or more suitable substituents that, when present, are each preferably independently chosen from the group consisting of hydrogen, methyl, ethyl, fluor (F), CF 3 and isopropyl; and:
  • - the acidic substituent denoted by [D] is chosen from the group consisting of a carboxylic acid (-COOH) group, an acylsulfonamide group (such as an acylsulfonamide group of the general formula CONHSO 2 R or SO 2 NHC OR wherein R is -C 1 -C 8 alkyl, CH 2 (C 1 -C 8 cycloalkyl), CH 2 (heterocyclyl with 1-6 ring atoms), C 1 -C 8 alkoxy or C 1 -C 8 amine), a tetrazole group or a group that is a bioisostere (as defined herein) of a tetrazole group (such as, for example and without limitation, a 4 H-1 ,2,4-oxadiazol-5-one group), and is more preferably tetrazole or a bioisostere thereof, and most preferably tetrazole; and:
  • - X and Y are each either a nitrogen atom or a carbon atom, such that either both X and Y are carbon atoms or only one or X or Y is a nitrogen atom (with the other of X and Y being a carbon atom); and:
  • - Z is a nitrogen atom or a carbon atom
  • R 1 when present, is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 3 or C 4 cycloalkyl, CF 3 , C 1 -C 8 alkoxy, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine) and cyano; and:
  • R 2 when present, is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 1 -C 8 alkoxy, cycloalkyl, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine); and:
  • R 3 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 - 8 alkyl (e.g. sec-butyl and in particular iso-butyl), including fluor-substituted methyl groups (e.g. trifluoromethyl and CHF 2 ), C 1 -C 8 alkoxy, -O-CF 3 , methoxyethyloxy (-0-(CH 2 ) 2 -0-CH 3 ) or difluoroethoxy (-O-CH 2 -CHF 2 ), cycloalkyl (e.g.
  • cyclopropoxy, cyclobutoxy or cyclopentoxy -CH 2 cycloalkyl, -O-CH 2 cycloalkyl, -O-cycloalkyl, -NH- cycloalkyl, -N(C 1 -C 3 )-cycloalkyl, -NH-heteroalkyl, -N(C 1 -C 3 )-heteroalkyl, heterocyclyl (e.g. oxirane), -CH 2 -heterocyclyl, -0-CH 2 -heterocyclyl (e.g.
  • R 4 when present, is chosen from the group consisting of H or halogen (F, Cl, Br or I, and preferably F or Cl); and provided that:
  • - X, Y and Z are chosen such (i.e. each from a carbon atom or a nitrogen atom) that the resulting ring structure form an aromatic ring (i.e. a planar conjugated ring); and further provided that:
  • R 1 when X is a nitrogen atom, R 1 is not present; and further provided that:
  • R 2 when Y is a nitrogen atom, R 2 is not present; and further provided that:
  • R 4 when Z is a nitrogen atom, R 4 is not present.
  • the invention in particular aspect relates to such a compound of Formula I that has an affinity for AT2R (measured according to the protocol set out in Example 2 below) that is better than 10 micromolar, preferably better than 1 micromolar, more preferably better than 0.1 micromolar, even more preferably better than 10 nanomolar.
  • the invention relates to a compound of Formula I in which: (i) the Aromatic Ring System [C], the Aliphatic Ring [A] and the acidic substituent [D] are each as further described herein; and (ii) each of X, Y and Z, as well as the particular combination of the atoms X, Y and Z that is present in said compound of Formula I; and (iii) each of the substituents R 1. R 2. R 3 and R 4 (when present) as well as the particular combination of such substituents R 1 . R 2.
  • R 3 and R 4 that is present in said compound of Formula I; and (iv) m and n (which as described herein can each independently be 0 or 1); and (v) each of the substituents R A , R B , R C and R D (when present) as well as the particular combination of such substituents R A , R B , R C and R D that is present in said compound of Formula I; and (vi) any further substituents that are present in such a compound of Formula I (e.g.
  • the invention relates to a compound of Formula II:
  • [C] is a monocyclic or polycyclic (and preferably monocyclic or bicyclic) aromatic ring system, such that: (i) the aromatic ring system contains at least one aromatic ring; (ii) the aromatic ring system is linked to the remainder of the compound of Formula II (i.e. either directly via a covalent bond or via the alkylene linking group - (m) R A R B - when said alkylene linking group is present) via a carbon atom that is present in said at least one aromatic ring; and (iii) said at least one aromatic ring (i.e.
  • the aromatic ring that contains the carbon atom to which the remainder of the compound of Formula II is linked preferably contains at least one (such as 1 or 2) hetero-atom(s), which hetero-atoms (when present) are preferably each independently and suitably chosen from N, S and O and are more preferably such that at least one of the hetero-atoms (when present) is a nitrogen atom;
  • [A] is either a ring system that is as schematically represented by the following Scheme C:
  • each atom Q is independently a carbon atom or a nitrogen atom (and preferably such that at least one atom Q is a nitrogen atom, and more preferably such that both atoms Q are nitrogen atoms), v is an integer between 1 and 4 (i.e. 1, 2, 3 or 4) and w is an integer between 1 and 4 (i.e.
  • each R x that is present and each R y that is present is preferably independently chosen from the group consisting of hydrogen, methyl, ethyl, fluor (F), CF 3 and isopropyl; and in particular a ring system that is as schematically represented by the following Scheme D:
  • each atom Q is independently a carbon atom or a nitrogen atom (and preferably such that at least one atom Q is a nitrogen atom, and more preferably such that both atoms Q are nitrogen atoms) and each of R 5 , R 5 , R7, R 8 , R 9 , R 10 , R 11 and R 12 can independently be a suitable substituent that is preferably independently chosen from the group consisting of hydrogen, methyl, ethyl, fluor (F), CF 3 and isopropyl; or alternatively a ring system of formula XCIX or C
  • Formula C in which said ring system of Formula XCIX or Formula C may optionally be suitably substituted with one or more suitable substituents that, when present, are each preferably independently chosen from the group consisting of hydrogen, methyl, ethyl, fluor (F), CF 3 and isopropyl; and:
  • - the acidic substituent denoted by [D] is chosen from the group consisting of a carboxylic acid (-COOH) group, (such as an acylsulfonamide group of the general formula CONHSO 2 R or SO 2 NHCOR wherein R is -C 1 -C 8 alkyl, CH 2 (C I -C 8 cycloalkyl), CH 2 (heterocyclyl with 1-6 ring atoms), C 1 -C 8 alkoxy or C 1 -C 8 amine), atetrazole group or a group that is a bioisostere (as defined herein) of a tetrazole group (such as, for example and without limitation, a 4H-1 ,2,4-oxadiazol-5-one group), and is more preferably tetrazole or a bioisostere thereof, and most preferably tetrazole; and:
  • R 1 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 3 or C 4 cycloalkyl, CF 3 , C 1 -C 8 alkoxy, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine) and cyano; and:
  • R 2 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 1 -C 8 alkoxy, cycloalkyl, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine); and:
  • R 3 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 - 8 alkyl (e.g. sec-butyl and in particular iso-butyl), including fluor-substituted methyl groups (e.g. trifluoromethyl and CHF 2 ), C 1 -C 8 alkoxy, -O-CF 3 , methoxyethyloxy (-0-(CH 2 ) 2 -0-CH 3 ) or difluoroethoxy (-O-CH 2 -CHF 2 ), cycloalkyl (e.g.
  • cyclopropoxy, cyclobutoxy or cyclopentoxy -CH 2 cycloalkyl, -O-CH 2 cycloalkyl, -O-cycloalkyl, -NH- cycloalkyl, -N(C 1 -C 3 )-cycloalkyl, -NH-heteroalkyl, -N(C 1 -C 3 )-heteroalkyl, heterocyclyl (e.g. oxirane), -CH 2 heterocyclyl, -O-CH 2 heterocyclyl (e.g.
  • R 4 is chosen from the group consisting of H or halogen (F, Cl, Br or I, and preferably F or
  • the invention in particular aspect relates to such a compound of Formula II that has an affinity for AT2R (measured according to the protocol set out in Example 2 below) that is better than 10 micromolar, preferably better than 1 micromolar, more preferably better than 0.1 micromolar, even more preferably better than
  • the invention relates to a compound of Formula
  • R 3 and R 4 that is present in said compound of Formula II; and (iii) m and n (which as described herein can each independently be 0 or 1); and (iv) each of the substituents R A , R B , R C and R D (when present) as well as the particular combination of such substituents R A , R B , R C and R D that is present in said compound of Formula II; and (v) any further substituents that are present in such a compound of Formula II (e.g.
  • the invention relates to a compound of Formula III:
  • [C] is a monocyclic or polycyclic (and preferably monocyclic or bicyclic) aromatic ring system, such that: (i) the aromatic ring system contains at least one aromatic ring; (ii) the aromatic ring system is linked to the remainder of the compound of Formula III (i.e. either directly via a covalent bond or via the alkylene linking group -C (m) R A R B - when said alkylene linking group is present) via a carbon atom that is present in said at least one aromatic ring; and (iii) said at least one aromatic ring (i.e.
  • the aromatic ring that contains the carbon atom to which the remainder of the compound of Formula III is linked) preferably contains at least one (such as 1 or 2) hetero-atom(s), which hetero- atoms (when present) are preferably each independently and suitably chosen from N, S and O and are more preferably such that at least one of the hetero-atoms (when present) is a nitrogen atom;
  • the aromatic ring system denoted as [C] preferably being an aromatic ring or ring system that is chosen from the group consisting of the aromatic rings/ring systems of Formulae VII to LXXXIII, more preferably from the group consisting of the aromatic rings/ring systems of Formulae LIX to LXXXIII, and even more preferably from the group consisting of the aromatic rings/ring systems of Formulae LXXIII to LXXXIII; and: m is 1 or 0; and: each of R A and R B , when present, is independently chosen from hydrogen, methyl and/or trifluoromethyl, or where R A + R B , when present
  • each atom Q is independently a carbon atom or a nitrogen atom (and preferably such that at least one atom Q is a nitrogen atom, and more preferably such that both atoms Q are nitrogen atoms), v is an integer between 1 and 4 (i.e. 1, 2, 3 or 4) and w is an integer between 1 and 4 (i.e.
  • each R x that is present and each R y that is present is preferably independently chosen from the group consisting of hydrogen, methyl, ethyl, fluor (F), CF 3 and isopropyl; and in particular a ring system that is as schematically represented by the following Scheme D:
  • each atom Q is independently a carbon atom or a nitrogen atom (and preferably such that at least one atom Q is a nitrogen atom, and more preferably such that both atoms Q are nitrogen atoms) and each of R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 and R 12 can independently be a suitable substituent that is preferably independently chosen from the group consisting of hydrogen, methyl, ethyl, fluor (F), CF 3 and isopropyl; or alternatively a ring system of formula XCIX or C
  • Formula C in which said ring system of Formula XCIX or Formula C may optionally be suitably substituted with one or more suitable substituents that, when present, are each preferably independently chosen from the group consisting of hydrogen, methyl, ethyl, fluor (F), CF 3 and isopropyl; and: - the acidic substituent denoted by [D] is chosen from the group consisting of a carboxylic acid (-COOH) group, an acylsulfonamide group (such as an acylsulfonamide group of the general formula CONHSO 2 R or SO 2 NHC OR wherein R is -C 1 -C 8 alkyl, CH 2 (C 1 -C 8 cycloalkyl), CH 2 (heterocyclyl with 1-6 ring atoms), C 1 -C 8 alkoxy or C 1 -C 8 amine), a tetrazole group or a group that is a bioisostere (as defined herein) of a t
  • R 1 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 3 or C 4 cycloalkyl, CF 3 , C 1 -C 8 alkoxy, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine) and cyano; and:
  • R 2 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 1 -C 8 alkoxy, cycloalkyl, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine); and:
  • R 4 is chosen from the group consisting of H or halogen (F, Cl, Br or I, and preferably F or Cl).
  • the invention in particular aspect relates to such a compound of Formula III that has an affinity for AT2R (measured according to the protocol set out in Example 2 below) that is better than 10 micromolar, preferably better than 1 micromolar, more preferably better than 0.1 micromolar, even more preferably better than 10 nanomolar.
  • the invention relates to a compound of Formula III (as further described herein) in which: (i) the Aromatic Ring System [C], the Aliphatic Ring [A] and the acidic substituent [D] are each as further described herein; and (ii) each of the substituents R 1.
  • FC and R 4 (when present) as well as the particular combination of such substituents R 1, R 2 and R 4 that is present in said compound of Formula III; and (iii) m (which as described herein can be 0 or 1); and (iii) each of the substituents R A and R B (when present) as well as the particular combination of such substituents R A and R B that is present in said compound of Formula III; and (iv) any further substituents that are present in such a compound of Formula III (e.g.
  • the invention relates to a compound of Formula IV:
  • [C] is a monocyclic or polycyclic (and preferably monocyclic or bicyclic) aromatic ring system, such that: (i) the aromatic ring system contains at least one aromatic ring; (ii) the aromatic ring system is linked to the remainder of the compound of Formula IV (i.e. either directly via a covalent bond or via the alkylene linking group -C (m) R A R B - when said alkylene linking group is present) via a carbon atom that is present in said at least one aromatic ring; and (iii) said at least one aromatic ring (i.e.
  • the aromatic ring that contains the carbon atom to which the remainder of the compound of Formula IV is linked preferably contains at least one (such as 1 or 2) hetero-atom(s), which hetero- atoms (when present) are preferably each independently and suitably chosen from N, S and O and are more preferably such that at least one of the hetero-atoms (when present) is a nitrogen atom;
  • - the acidic substituent denoted by [D] is chosen from the group consisting of a carboxylic acid (-COOH) group, an acylsulfonamide group (such as an acylsulfonamide group of the general formula CONHSO 2 R or SO 2 NHC OR wherein R is -C 1 -C 8 alkyl, CH 2 (C 1 -C 8 cycloalkyl), CH 2 heterocyclyl with 1-6 ring atoms), C 1 -C 8 alkoxy or C 1 -C 8 amine), a tetrazole group or a group that is a bioisostere (as defined herein) of a tetrazole group (such as, for example and without limitation, a 4H-1 ,2,4-oxadiazol-5-one group), and is more preferably tetrazole or a bioisostere thereof, and most preferably tetrazole; and: - X and Y are each either a nitrogen
  • - Z is a nitrogen atom or a carbon atom
  • R 1 when present, is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 3 or C 4 cycloalkyl, CF 3 , C 1 -C 8 alkoxy, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine) and cyano; and:
  • R 2 when present, is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 1 -C 8 alkoxy, cycloalkyl, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine); and:
  • R 3 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 - 8 alkyl (e.g. sec-butyl and in particular iso-butyl), including fluor-substituted methyl groups (e.g. trifluoromethyl and CHF 2 ), C 1 -C 8 alkoxy, -O-CF 3 , methoxyethyloxy (-0-(CH 2 ) 2 -0-CH 3 ) or difluoroethoxy (-O-CH 2 -CHF 2 ), cycloalkyl (e.g.
  • cyclopropoxy, cyclobutoxy or cyclopentoxy -CH 2 cycloalkyl, -O-CH 2 cycloalkyl, -O-cycloalkyl, -NH- cycloalkyl, -N(C 1 -C 3 )-cycloalkyl, -NH-heteroalkyl, -N(C 1 -C 3 )-heteroalkyl, heterocyclyl (e.g. oxirane), -CH 2 heterocyclyl, -O-CH 2 heterocyclyl (e.g.
  • -O-CH 2 oxirane -O- heterocyclyl
  • -NH-heterocyclyl -N(C 1 -C 3 )-heterocyclyl
  • cyano is most preferably isobutyl; and:
  • R 4 when present, is chosen from the group consisting of H or halogen (F, Cl, Br or I, and preferably F or Cl); and provided that:
  • - X, Y and Z are chosen such (i.e. each from a carbon atom or a nitrogen atom) that the resulting ring structure form an aromatic ring (i.e. a planar conjugated ring); and further provided that:
  • R 4 when Z is a nitrogen atom, R 4 is not present.
  • the invention in particular aspect relates to such a compound of Formula IV that has an affinity for AT2R (measured according to the protocol set out in Example 2 below) that is better than 10 micromolar, preferably better than 1 micromolar, more preferably better than 0.1 micromolar, even more preferably better than 10 nanomolar.
  • the invention relates to a compound of Formula IV (as further described herein) in which: (i) the Aromatic Ring System [C] and the acidic substituent [D] are each as further described herein; and (ii) each atom Q (which as mentioned herein can independently be a carbon atom or a nitrogen atom, with preferably at least one Q being a nitrogen atom); and (iii) each of X, Y and Z, as well as the particular combination of the atoms X, Y and Z that is present in said compound of Formula IV; and (iv) each of the substituents R 1. R 2. R 1 and R 4 (when present) as well as the particular combination of such substituents R 1. R 2.
  • invention relates to a compound of Formula V:
  • [C] is a monocyclic or polycyclic (and preferably monocyclic or bicyclic) aromatic ring system, such that: (i) the aromatic ring system contains at least one aromatic ring; (ii) the aromatic ring system is linked to the remainder of the compound of Formula V (i.e. either directly via a covalent bond or via the alkylene linking group -C (m) R A R B - when said alkylene linking group is present) via a carbon atom that is present in said at least one aromatic ring; and (iii) said at least one aromatic ring (i.e.
  • the aromatic ring that contains the carbon atom to which the remainder of the compound of Formula V is linked preferably contains at least one (such as 1 or 2) hetero-atom(s), which hetero-atoms (when present) are preferably each independently and suitably chosen from N, S and O and are more preferably such that at least one of the hetero-atoms (when present) is a nitrogen atom;
  • - the acidic substituent denoted by [D] is chosen from the group consisting of a carboxylic acid (-COOH) group, an acylsulfonamide group (such as an acylsulfonamide group of the general formula CONHSO 2 R or SO 2 NHC OR wherein R is -C 1 -C 8 alkyl, CH 2 (C 1 -C 8 cycloalkyl), CH 2 (heterocyclyl with 1-6 ring atoms), C 1 -C 8 alkoxy or C 1 -C 8 amine), a tetrazole group or a group that is a bioisostere (as defined herein) of a tetrazole group (such as, for example and without limitation, a 4H-1 ,2,4-oxadiazol-5-one group), and is more preferably tetrazole or a bioisostere thereof, and most preferably tetrazole; and:
  • R 1 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 3 or C 4 cycloalkyl, CF 3 , C 1 -C 8 alkoxy, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine) and cyano; and:
  • R 2 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 1 -C 8 alkoxy, cycloalkyl, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine); and:
  • R 3 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 - 8 alkyl (e.g. sec-butyl and in particular iso-butyl), including fluor-substituted methyl groups (e.g. trifluoromethyl and CHF 2 ), C 1 -C 8 alkoxy, -O-CF 3 , methoxyethyloxy (-0-(CH 2 ) 2 -0-CH ) or difluoroethoxy (-O-CH 2 -CHF 2 ), cycloalkyl (e.g.
  • cyclopropoxy, cyclobutoxy or cyclopentoxy -CH 2 -cycloalkyl, -0-CH 2 -cycloalkyl, -O-cycloalkyl, -NH- cycloalkyl, -N(C 1 -C 3 )-cycloalkyl, -NH-heteroalkyl, -N(C 1 -C 3 )-heteroalkyl, heterocyclyl (e.g. oxirane), -CH 2 -heterocyclyl, -O-CH 2 -heterocyclyl (e.g.
  • R 4 is chosen from the group consisting of H or halogen (F, Cl, Br or I, and preferably F or Cl).
  • the invention in particular aspect relates to such a compound of Formula V that has an affinity for AT2R (measured according to the protocol set out in Example 2 below) that is better than 10 micromolar, preferably better than 1 micromolar, more preferably better than 0.1 micromolar, even more preferably better than 10 nanomolar.
  • the invention relates to a compound of Formula V (as further described herein) in which: (i) the Aromatic Ring System [C] and the acidic substituent [D] are each as further described herein; and (ii) each atom Q (which as mentioned herein can independently be a carbon atom or a nitrogen atom, with preferably at least one Q being a nitrogen atom); and (iii) each of the substituents R 1. R 2. R 3 and R 4 (when present) as well as the particular combination of such substituents R 1. R 2.
  • [C] is a monocyclic or polycyclic (and preferably monocyclic or bicyclic) aromatic ring system, such that: (i) the aromatic ring system contains at least one aromatic ring; (ii) the aromatic ring system is linked to the remainder of the compound of Formula VI (i.e. either directly via a covalent bond or via the alkylene linking group -C (m) R A R B - when said alkylene linking group is present) via a carbon atom that is present in said at least one aromatic ring; and (iii) said at least one aromatic ring (i.e.
  • the aromatic ring that contains the carbon atom to which the remainder of the compound of Formula VI is linked preferably contains at least one (such as 1 or 2) hetero-atom(s), which hetero- atoms (when present) are preferably each independently and suitably chosen from N, S and O and are more preferably such that at least one of the hetero-atoms (when present) is a nitrogen atom;
  • the aromatic ring system denoted as [C] preferably being an aromatic ring or ring system that is chosen from the group consisting of the aromatic rings/ring systems of Formulae VII to LXXXIII, more preferably from the group consisting of the aromatic rings/ring systems of Formulae LIX to LXXXIII, and even more preferably from the group consisting of the aromatic rings/ring systems of Formulae LXXIII to LXXXIII; and: - m is 1 or 0;.
  • - the acidic substituent denoted by [D] is chosen from the group consisting of a carboxylic acid (-COOH) group, an acylsulfonamide group (such as an acylsulfonamide group of the general formula CONHSO 2 R or SO 2 NHC OR wherein R is -C 1 -C 8 alkyl, CH 2 (C 1 -C 8 cycloalkyl), CH 2 (heterocyclyl with 1-6 ring atoms), C 1 -C 8 alkoxy or C 1 -C 8 amine), a tetrazole group or a group that is a bioisostere (as defined herein) of a tetrazole group (such as, for example and without limitation, a 4H-1 ,2,4-oxadiazol-5-one group), and is more preferably tetrazole or a bioisostere thereof, and most preferably tetrazole; and:
  • R 1 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 3 or C 4 cycloalkyl, CF 3 , C 1 -C 8 alkoxy, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine) and cyano; and:
  • R 2 is chosen from the group consisting of H, halogen (F, Cl, Br or I, and preferably F or Cl), C 1 -C 8 alkyl, C 1 -C 8 alkoxy, cycloalkyl, amine (-MB) or C 1 -C 2 substituted amine (e.g. dimethylamine or diethylamine); and:
  • R 4 is chosen from the group consisting of H or halogen (F, Cl, Br or I, and preferably F or Cl).
  • the invention in particular aspect relates to such a compound of Formula VI that has an affinity for AT2R (measured according to the protocol set out in Example 2 below) that is better than 10 micromolar, preferably better than 1 micromolar, more preferably better than 0.1 micromolar, even more preferably better than 10 nanomolar.
  • the invention relates to a compound of Formula VI (as further described herein) in which: (i) the Aromatic Ring System [C] and the acidic substituent [D] are each as further described herein; and (ii) each atom Q (which as mentioned herein can independently be a carbon atom or a nitrogen atom, with preferably at least one Q being a nitrogen atom); and (iii) each of the substituents R 1. R 2 and R 4 (when present) as well as the particular combination of such substituents R 1.
  • the compounds of the invention can be used in the prevention, treatment and/or management of pain, in particular chronic pain, such as the chronic pain states mentioned herein.
  • the invention relates to the use of a compound of the invention (such as a compound of Formula I as defined herein, in particular a compound of Formula II as defined herein, more in particular a compound of Formula III as defined herein, and preferably a compound of Formula IV as defined herein, more preferably a compound of Formula V as defined herein, and even more preferably a compound of Formula VI as defined herein) in the prevention, treatment and/or management of pain, in particular in prevention, treatment and/or management of chronic pain.
  • a compound of the invention such as a compound of Formula I as defined herein, in particular a compound of Formula II as defined herein, more in particular a compound of Formula III as defined herein, and preferably a compound of Formula IV as defined herein, more preferably a compound of Formula V as defined herein, and even more preferably a compound of Formula VI as defined herein
  • the invention relates to the use of a pharmaceutical composition that comprises a compound of the invention (such as a compound of Formula I as defined herein, in particular a compound of Formula II as defined herein, more in particular a compound of Formula III as defined herein, and preferably a compound of Formula IV as defined herein, more preferably a compound of Formula V as defined herein, and even more preferably a compound of Formula VI as defined herein) in the prevention, treatment and/or management of pain, in particular in prevention, treatment and/or management of chronic pain.
  • a compound of the invention such as a compound of Formula I as defined herein, in particular a compound of Formula II as defined herein, more in particular a compound of Formula III as defined herein, and preferably a compound of Formula IV as defined herein, more preferably a compound of Formula V as defined herein, and even more preferably a compound of Formula VI as defined herein
  • Such a pharmaceutical composition will generally be as further described herein, and will generally comprise a pharmaceutically active amount of a compound of the invention, for example an amount that will allow the doses of the compound of the invention mentioned herein to be administered to a subject using a suitable dosage regimen (for example as a single or multiple administrations/doses per day).
  • a suitable dosage regimen for example as a single or multiple administrations/doses per day.
  • the invention relates to a method for the prevention, treatment and/or management of pain, in particular chronic pain, in a subject, comprising administering to a subject (i.e. a subject in need of such prevention, treatment or management) a pharmaceutically active amount of a compound of the invention or a pharmaceutical composition comprising the same (for example, in accordance with a suitable dosage regimen as further described herein).
  • the compounds or compositions of the invention must be administered or used for a prolonged period of time (e.g. at least a week, such as at least a month, such as at least three months or longer, and/or until the pain is relieved or subsides), for example as part of a chronic treatment regimen or as part of an overall treatment regimen for the management of chronic pain.
  • Such a chronic treatment regimen or pain management regimen and the use of a compound or composition of the invention as part of such a regimen can be determined by the treating physician based on the overall condition of the patient, the nature and cause of the pain and/or the particular pain state involved, and other relevant factors that will be clear to a clinician.
  • Such treatment regimens and dosage regimens form further aspects of the invention.
  • the compounds and compositions of the invention can in particular be used in the prevention, treatment and/or management of pain, in particular chronic pain, where such (chronic) pain is neuropathic pain.
  • neuropathic pain can be neuropathic pain that originates from the peripheral part of the nervous system (for example in the case of trigeminal or post-herpetic neuralgia, peripheral nerve injury, painful polyneuropathies, or radiculopathies) or can be neuropathic pain that originates from and/or involves the central nervous system (or example in the case of chronic neuropathic pain that develops as a result of spinal cord or brain injury, stroke or multiple sclerosis).
  • Such uses and corresponding/associated methods of treatment form further aspects of the invention.
  • compounds and compositions of the invention can be used in the prevention, treatment and/or management of (peripheral) neuropathy.
  • Such uses and corresponding/associated methods of treatment form further aspects of the invention.
  • compounds and compositions of the invention can be used in the prevention, treatment and/or management of trigeminal neuralgia.
  • a compound of Formula I as defined herein in particular a compound of Formula II as defined herein, more in particular a compound of Formula III as defined herein, and preferably a compound of Formula IV as defined herein, more preferably a compound of Formula V as defined herein, and even more preferably a compound of Formula VI as defined herein, or a pharmaceutical composition comprising the same
  • Such uses and corresponding/associated methods of treatment form further aspects of the invention.
  • compounds and compositions of the invention can be used in the prevention, treatment and/or management of chronic NP after peripheral nerve injury.
  • Such uses and corresponding/associated methods of treatment form further aspects of the invention.
  • compounds and compositions of the invention can be used in the prevention, treatment and/or management of painful polyneuropathy.
  • Such uses and corresponding/associated methods of treatment form further aspects of the invention.
  • compounds and compositions of the invention can be used in the prevention, treatment and/or management of post-herpetic neuralgia.
  • Such uses and corresponding/associated methods of treatment form further aspects of the invention.
  • compounds and compositions of the invention can be used in the prevention, treatment and/or management of painful radiculopathy.
  • Such uses and corresponding/associated methods of treatment form further aspects of the invention.
  • compounds and compositions of the invention can be used in the prevention, treatment and/or management of chronic central NP associated with spinal cord injury (SCI).
  • SCI spinal cord injury
  • compounds and compositions of the invention can be used in the prevention, treatment and/or management of chronic central NP associated with brain injury.
  • Such uses and corresponding/associated methods of treatment form further aspects of the invention.
  • compounds and compositions of the invention can be used in the prevention, treatment and/or management of chronic central post-stroke pain.
  • Such uses and corresponding/associated methods of treatment form further aspects of the invention.
  • the compounds of the invention will likely be more efficacious in preventing, treating or managing types of neuropathic pain that are generally associated with the peripheral nervous system (i.e. compared to types of neuropathic pain that are generally associated with the central nervous system), so that the use of the compounds of the invention in the prevention, treatment and/or management of the types of neuropathic pain that are associated with and/or arise out of the peripheral nervous system (e.g. caused by disease, disfunction or damage of/to peripheral nerves) will generally form preferred applications and aspects of the invention.
  • compounds and compositions of the invention can be used in the prevention, treatment and/or management of chronic central NP associated with multiple sclerosis.
  • Such uses and corresponding/associated methods of treatment form further aspects of the invention.
  • compounds and compositions of the invention can be used in the prevention, treatment and/or management of inflammatory pain.
  • a compound of Formula I as defined herein in particular a compound of Formula II as defined herein, more in particular a compound of Formula III as defined herein, and preferably a compound of Formula IV as defined herein, more preferably a compound of Formula V as defined herein, and even more preferably a compound of Formula VI as defined herein, or a pharmaceutical composition comprising the same
  • Such uses and corresponding/associated methods of treatment form further aspects of the invention.
  • prevention, treatment and/or management of pain also includes reducing, alleviating and/or relieving pain and/or the intensity, severity and/or duration of pain; reducing, alleviating and/or relieving sensitivity or hypersensitivity to pain; reducing, alleviating and/or relieving hyperalgesia; and/or reducing, alleviating and/or relieving allodynia, as well as delaying the onset of pain.
  • the invention relates to methods for the prevention, treatment and/or management of a chronic neuropathic pain that originates from the peripheral part of the nervous system in a subject, which method comprises administering to a subject (i.e. a subject in need of such prevention, treatment or management) a pharmaceutically active amount of a compound of the invention or a pharmaceutical composition comprising the same (for example, in accordance with a suitable dosage regimen as further described herein).
  • the invention relates to methods for the prevention, treatment and/or management of a chronic neuropathic pain that originates from and/or involve the central nervous system that originates from the peripheral part of the nervous system in a subject, which method comprises administering to a subject (i.e. a subject in need of such prevention, treatment or management) a pharmaceutically active amount of a compound of the invention or a pharmaceutical composition comprising the same (for example, in accordance with a suitable dosage regimen as further described herein).
  • a subject i.e. a subject in need of such prevention, treatment or management
  • a pharmaceutically active amount of a compound of the invention or a pharmaceutical composition comprising the same (for example, in accordance with a suitable dosage regimen as further described herein).
  • the invention relates to methods for the prevention, treatment and/or management of peripheral neuropathy in a subject, comprising administering to a subject (i.e. a subject in need of such prevention, treatment or management) a pharmaceutically active amount of a compound of the invention or a pharmaceutical composition comprising the same (for example, in accordance with a suitable dosage regimen as further described herein).
  • a pharmaceutically active amount of a compound of the invention or a pharmaceutical composition comprising the same (for example, in accordance with a suitable dosage regimen as further described herein).
  • the invention relates to methods for the prevention, treatment and/or management of pain, in particular chronic pain, comprising administering to a subject (i.e. a subject in need of such prevention, treatment or management) a pharmaceutically active amount of a compound of the invention or a pharmaceutical composition comprising the same (for example, in accordance with a suitable dosage regimen as further described herein), in which said (chronic) pain is one of the following pain states: trigeminal or post- herpetic neuralgia, peripheral nerve injury, painful polyneuropathy, painful radiculopathy, chronic neuropathic pain that develops as a result of spinal cord or brain injury, stroke or multiple sclerosis; chronic NP after peripheral nerve injury, chronic central NP associated with spinal cord injury (SCI), chronic central NP associated with brain injury, chronic central post-stroke pain, chronic central NP associated with multiple sclerosis, and/or chronic pain resulting from tissue injury (also including, without limitation, chronic pain following surgery and phantom pain following amputation).
  • a subject i.e.
  • the compounds or compositions of the invention must be administered or used for a prolonged period of time (e.g. at least a week, such as at least a month, such as at least three months or longer, and/or until the pain is relieved or subsides), for example as part of a chronic treatment regimen or as part of an overall treatment regimen for the management of chronic pain.
  • a chronic treatment regimen or pain management regimen and the use of a compound or composition of the invention as part of such a regimen can be determined by the treating physician based on the overall condition of the patient, the nature and cause of the pain and/or the particular pain state involved, and other relevant factors that will be clear to a clinician.
  • Such treatment regimens and dosage regimens form further aspects of the invention.
  • prevention, treatment and/or management of pain of these pain states also includes reducing, alleviating and/or relieving pain and/or the intensity, severity and/or duration of pain; reducing, alleviating and/or relieving sensitivity or hypersensitivity to pain; reducing, alleviating and/or relieving hyperalgesia; and/or reducing, alleviating and/or relieving allodynia, as well as delaying the onset of pain.
  • compounds and compositions of the invention are used for reducing, alleviating and/or relieving hyperalgesia, in particular hyperalgesia that is associated with chronic pain, more in particular hyperalgesia that is associated with neuropathic pain and/or inflammatory pain, such as hyperalgesia that is associated with one of the specific pain states mentioned herein.
  • hyperalgesia in particular hyperalgesia that is associated with chronic pain
  • hyperalgesia that is associated with neuropathic pain and/or inflammatory pain
  • hyperalgesia that is associated with one of the specific pain states mentioned herein Such uses and corresponding/associated methods of treatment form further aspects of the invention.
  • compounds and compositions of the invention are used for reducing, alleviating and/or relieving allodynia, in particular allodynia that is associated with chronic pain, more in particular allodynia that is associated with neuropathic pain and/or inflammatory pain, such as allodynia that is associated with one of the specific pain states mentioned herein.
  • Such uses and corresponding/associated methods of treatment form further aspects of the invention.
  • compounds and compositions of the invention are used for reducing, alleviating and/or relieving inflammatory pain, such as hypersensitivity to pain that occurs in response to tissue damage and inflammation.
  • inflammatory pain such as hypersensitivity to pain that occurs in response to tissue damage and inflammation.
  • compounds and compositions of the invention are used for reducing, alleviating and/or relieving pain, and in particular inflammatory pain, that is caused by and/or associated with trauma and/or arthritis.
  • Such uses and corresponding/associated methods of treatment form further aspects of the invention.
  • compounds and compositions of the invention are used for reducing, alleviating and/or relieving post-operative pain.
  • Such uses and corresponding/associated methods of treatment form further aspects of the invention.
  • the compounds or compositions of the invention must be administered or used according to a suitable treatment regimen and/or as an overall treatment regimen for the management of the pain state involved (which may for example be applied until the pain subsides or is reduced and/or the underlying disease or condition is treated or reduced, or may be chronic in case of a chronic disease).
  • a suitable treatment regimen and/or as an overall treatment regimen for the management of the pain state involved (which may for example be applied until the pain subsides or is reduced and/or the underlying disease or condition is treated or reduced, or may be chronic in case of a chronic disease).
  • Such a treatment regimen or pain management regimen and the use of a compound or composition of the invention as part of such a regimen can be determined by the treating physician based on the overall condition of the patient, the nature and cause of the pain and/or the particular pain state involved, and other relevant factors that will be clear to a clinician.
  • Such treatment regimens and dosage regimens form further aspects of the invention.
  • a compound or composition of the invention in the prevention, treatment and/or management of any of the types of pain and/or pain states mentioned herein, the use of a compound or composition of the invention may be suitably combined with the administration or use of one or more other compounds or active substances known per se for the prevention, treatment and/or management of pain (such as chronic pain), and in particular be suitably combined with the administration or use of one or more other compounds or active substances known per se for the prevention, treatment and/or management of the particular type of pain or pain state involved.
  • a compound of the invention when a compound of the invention (such as a compound of Formula I as defined herein, in particular a compound of Formula II as defined herein, more in particular a compound of Formula III as defined herein, and preferably a compound of Formula IV as defined herein, more preferably a compound of Formula V as defined herein, and even more preferably a compound of Formula VI as defined herein) is present in a pharmaceutical composition (as described herein) and/or is used for a therapeutic use (as further described herein) and/or as part of a method-of-treatment (as further described herein), such a compound of the invention preferably has an affinity for AT2R (measured according to the protocol set out in Example 2 below) that is better than 10 micromolar, more preferably better than 1 micromolar, even more preferably better than 0.1 micromolar, and may in particular have an affinity for AT2R that is better than 10 nanomolar.
  • AT2R affinity for AT2R
  • the compounds of the invention can be used in the prevention and treatment of diseases and disorders that can be prevented or treated by modulating, in a subject in need thereof, the angiotensin II receptor type 2, AT2R-mediated signaling and/or the pathways and/or biological processes in which AT2R and/or AT2R-mediated signaling is involved. It is further expected that the compounds and composition can be used for the prevention and treatment of diseases and disorders that can be prevented or treated by administering, to a subject in need thereof, a compound that is capable of competing with the binding of one or more natural ligands to the angiotensin II receptor type 2.
  • Such diseases include, but are not limited to those diseases that are mentioned in the art as being associated with AT2R and/or AT2R-mediated signaling and other diseases and disorders for which the use of known modulators (and in particular modulators that compete for ligand binding to AT2R) and/or the use of known inhibitors and/or antagonists of AT2R and/or AT2R-mediated signaling have been described in the art. Reference is for example made to the diseases and disorders listed in WO 2019/179515 (listed in more detail below).
  • compounds and compositions of the invention are used in the prevention and/or treatment of diseases and disorders that can be prevented or treated by modulating, in a subject in need thereof, the angiotensin II receptor type 2, AT2R-mediated signaling and/or the pathways and/or biological processes in which AT2R and/or AT2R-mediated signaling, in particular by administering, to said subject, one or more pharmaceutically active amounts (e.g.
  • a suitable treatment or dosage regimen (which can be determined by the treating physician based on the state of the patient, the nature of the disease involved, the severity of the disease and/or its symptoms, and other factors that can be determined and suitably taken into account by the treating physician).
  • a suitable treatment or dosage regimen which can be determined by the treating physician based on the state of the patient, the nature of the disease involved, the severity of the disease and/or its symptoms, and other factors that can be determined and suitably taken into account by the treating physician.
  • compounds and compositions of the invention are used in the prevention and/or treatment of diseases and disorders that can be prevented or treated by administering, to a subject in need thereof, a compound that is capable of competing with the binding of one or more natural ligands to the angiotensin II receptor, in particular by administering, to said subject, one or more pharmaceutically active amounts (e.g.
  • a suitable treatment or dosage regimen (which can be determined by the treating physician based on the state of the patient, the nature of the disease involved, the severity of the disease and/or its symptoms, and other factors that can be determined and suitably taken into account by the treating physician).
  • a suitable treatment or dosage regimen which can be determined by the treating physician based on the state of the patient, the nature of the disease involved, the severity of the disease and/or its symptoms, and other factors that can be determined and suitably taken into account by the treating physician.
  • compounds and compositions of the invention are used in the prevention and/or treatment of one of the following diseases and disorders (which are mentioned in for example WO 2019/179515 as being AT2R-mediated disorders): a cerebrovascular disorder (which includes cerebral vasospasm and cerebral ischemia); cognitive dysfunction (which includes amnesia, senile dementia, AIDS related Dementia and Down syndrome); central nervous system diseases or conditions (including addiction such as alcoholism, anxiety, depression or dysthymia, epilepsy, hyperactivity, pain, Parkinson’s disease, mental illness, sleep disorders, irregularities autonomic function,
  • neuropathic disorders including primary neuropathy and secondary neuropathy, such as peripheral neuropathy
  • symptoms associated with it including hyperesthesia, hyperalgesia, allodynia, spontaneous burning, numbness, weakness, burning pain
  • shooting pain and loss of reflexes preferably neuropathic pain
  • the secondary neuropathy includes: diabetic neuropathy; herpes zoster-associated neuropathy; uremia- associated neuropathy; amyloidosis neuropathy; neuropathy; hereditary motor and sensory neuropathy; hereditary sensory neuropathy; hereditary sensory and autonomic neuropathy; hereditary neuropathy with ulcer damage; nitrofurantoin neuropathy; sausage-like swelling neuropathy; neuropathy caused by nutritional deficiencies; neuropathy and complex regional pain syndrome; neuropathy caused by repetitive activities (such as typing or working on assembly lines); neuropathy caused by antiretroviral drugs (such as zalcitabine and didanosine), antibiotics (such as nitrazole and isoniazid), gold compounds, chemotherapeutic drugs (e
  • peripheral neuropathy caused by arsenic, mercury, and organophosphate insecticides
  • peripheral neuropathy associated with the infection process e.g. Guillain-Barre syndrome
  • a condition characterized by neuronal hypersensitivity including hyperalgesia conditions, such as fibromyalgia, irritable bowel syndrome
  • a disorder associated with abnormal nerve regeneration including neuronal hypersensitivity, breast pain, interstitial cystitis, vulvar pain, cancer-induced neuropathy
  • inflammation including bums such as chemistry, friction or thermal burns; autoimmune diseases such as rheumatoid arthritis; inflammatory bowel diseases such as Crohn's disease and Colitis; osteoarthritis, carditis, dermatitis, myositis, neuritis and collagen vascular disease);
  • - impaired nerve conduction velocity which may be associated with neuropathic disorders (such as peripheral neuropathy) as described above, as well as carpal tunnel syndrome, ulnar neuropathy, Guillain-Barre syndrome, facial scapula muscle atrophy, and disc herniation; cell proliferative disorders, including cancer (including leukemia, melanoma, prostate cancer, breast cancer, ovarian cancer, basal cell carcinoma, squamous cell carcinoma, sarcoma, fibrosarcoma, colon cancer, lung cancer); and non-cancerous hyperplasia symptoms (including skin conditions such as sputum, keloids, psoriasis, sputum disorders, and scar tissue reduction and cosmetic remodeling); conditions associated with imbalance between bone resorption and bone formation, including osteoporosis; which method comprises administering, to said subject, one or more pharmaceutically active amounts (e.g.
  • the invention relates to methods for the prevention, treatment and/or management of diabetes, and in particular type II diabetes, in a subject, comprising administering to a subject (i.e. a subject in need of such prevention, treatment or management) a pharmaceutically active amount of a compound of the invention or a pharmaceutical composition comprising the same (for example, in accordance with a suitable dosage regimen as further described herein).
  • the compounds of the invention may be prepared in a manner known per se, for example as known per se for structurally related compounds, using well-known techniques of organic chemistry. Some specific but non-limiting methods are illustrated in the Experimental Part below.
  • Suitable protective groups as well as methods and conditions for inserting them and removing them, will be clear to the skilled person and are generally described in the standard handbooks of organic chemistry, such as Greene and Wuts, “Protective groups in organic synthesis”, 3 rd Edition, Wiley and Sons, 1999. It will also be clear to the skilled person that compounds of the invention in which one or more functional groups have been protected with suitable functional groups can find use as intermediates in the production and/or synthesis of the compounds of the invention, and as such form a further aspect of the invention.
  • the compounds of the invention may be used as a free acid or base, and/or in the form of a pharmaceutically acceptable acid-addition and/or base- addition salt (e.g. obtained with non-toxic organic or inorganic acid or base), in the form of a hydrate, solvate and/or complex, and/or in the form or a pro-drug or pre-drug, such as an ester.
  • a pharmaceutically acceptable acid-addition and/or base- addition salt e.g. obtained with non-toxic organic or inorganic acid or base
  • a pro-drug or pre-drug such as an ester.
  • Such salts, hydrates, solvates, etc. and the preparation thereof will be clear to the skilled person; reference is for instance made to the salts, hydrates, solvates, etc. described in US-A-6,372,778, US-A-6,369,086, US-A-6,369,087 and US-A-6,372,733.
  • the compounds of the inventions may be formulated as a pharmaceutical preparation comprising at least one compound of the invention and at least one pharmaceutically acceptable carrier, diluent or excipient and/or adjuvant, and optionally one or more further pharmaceutically active compounds.
  • a formulation may be in a form suitable for oral administration, for parenteral administration (such as by intravenous, intramuscular or subcutaneous injection or intravenous infusion), for topical administration, for administration by inhalation, by a skin patch, by an implant, by a suppository, etc.
  • Such suitable administration forms which may be solid, semi-solid or liquid, depending on the manner of administration - as well as methods and carriers, diluents and excipients for use in the preparation thereof, will be clear to the skilled person; reference is again made to for instance US-A-6,372,778, US-A-6,369,086, US-A-6,369,087 and US-A-6,372,733, as well as to the standard handbooks, such as the latest edition of Remington’s Pharmaceutical Sciences.
  • Such preparations include tablets, pills, powders, lozenges, sachets, cachets, elixirs, suspensions, emulsions, solutions, syrups, aerosols, ointments, cremes, lotions, soft and hard gelatin capsules, suppositories, sterile injectable solutions and sterile packaged powders (which are usually reconstituted prior to use) for administration as a bolus and/or for continuous administration, which may be formulated with carriers, excipients, and diluents that are suitable per se for such formulations, such as lactose, dextrose, sucrose, sorbitol, mannitol, starches, gum acacia, calcium phosphate, alginates, tragacanth, gelatin, calcium silicate, microcrystalline cellulose, polyvinylpyrrolidone, polyethylene glycol, cellulose, (sterile) water, methylcellulose, methyl- and propylhydroxy
  • the formulations can optionally contain other pharmaceutically active substances (which may or may not lead to a synergistic effect with the compounds of the invention) and other substances that are commonly used in pharmaceutical formulations, such as lubricating agents, wetting agents, emulsifying and suspending agents, dispersing agents, disintegrants, bulking agents, fillers, preserving agents, sweetening agents, flavoring agents, flow regulators, release agents, etc.
  • the compositions may also be formulated so as to provide rapid, sustained or delayed release of the active compound(s) contained therein, for example using liposomes or hydrophilic polymeric matrices based on natural gels or synthetic polymers.
  • the above preparations may be prepared in a manner known per se, which usually involves mixing the active substance(s) to be used with the one or more pharmaceutically acceptable carriers, necessary under aseptic conditions.
  • the pharmaceutical preparations of the invention are preferably in a unit dosage form, and may be suitably packaged, for example in a box, blister, vial, bottle, sachet, ampoule or in any other suitable single-dose or multi-dose holder or container (which may be properly labeled); optionally with one or more leaflets containing product information and/or instructions for use.
  • unit dosages will contain between 1 and 1000 mg, and usually between 5 and 500 mg, of the at least one compound of the invention, e.g. about 10, 25, 50, 100, 200, 300 or 400 mg per unit dosage.
  • the compounds can be administered by a variety of routes including the oral, rectal, transdermal, subcutaneous, intravenous, intramuscular or intranasal routes, depending mainly on the specific preparation used and the condition to be treated or prevented, and with oral and intravenous administration usually being preferred.
  • the at least one compound of the invention will generally be administered in an “effective amount”, by which is meant any amount of a compound of the Formulas I or VI above that, upon suitable administration, is sufficient to achieve the desired therapeutic or prophylactic effect in the individual to which it is administered.
  • such an effective amount will usually be between 0.01 to 1000 mg, more often between 0.1 and 500 mg, such as between 1 and 250 mg, for example about 5, 10, 20, 50, 100, 150, 200 or 250 mg, per kilogram body weight of the patient per day, which may be administered as a single daily dose, divided over one or more daily doses, or essentially continuously, e.g. using a drip infusion.
  • the amount(s) to be administered, the route of administration and the further treatment regimen may be determined by the treating clinician, depending on factors such as the age, gender and general condition of the patient and the nature and severity of the disease/symptoms to be treated.
  • the invention relates to a composition, and in particular a composition for pharmaceutical use, that contains at least one compound of the invention and at least one suitable carrier (i.e. a carrier suitable for pharmaceutical use).
  • a suitable carrier i.e. a carrier suitable for pharmaceutical use.
  • the invention also relates to the use of a compound of the invention in the preparation of such a composition.
  • the above compounds and compositions may be of value in the veterinary field, which for the purposes herein not only includes the prevention and/or treatment of diseases in animals, but also - for economically important animals such as cattle, pigs, sheep, chicken, fish, etc. - enhancing the growth and/or weight of the animal and/or the amount and/or the quality of the meat or other products obtained from the animal.
  • the invention relates to a composition for veterinary use that contains at least one compound of the invention and at least one suitable carrier (i.e. a carrier suitable for veterinary use).
  • a suitable carrier i.e. a carrier suitable for veterinary use.
  • the invention also relates to the use of a compound of the invention in the preparation of such a composition.
  • piperazine 107.5 g, 1250.0 mmol
  • 4-bromo- 2-fluorobenzonitrile 50 g, 250.0 mmol
  • acetonitrile 500 mL
  • the reaction mixture was evaporated to dryness, water was added and the obtained solution was extracted with EtOAc (3 x 500 mL).
  • EtOAc 3 x 500 mL
  • the combined organic layers were washed with sat. brine, dried over anhydrous sodium sulfate and evaporated under reduced pressure.
  • the crude gummy solid (57.0 g, crude) was taken to the next step without purification.
  • Step ( ii) 4-(2-Methylprop-l-en-l-yl)-2-(piperazin-l-yl) benzonitrile
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure afforded 4-(2-methylprop-l-en-l-yl)-2-(piperazin-l-yl)benzonitrile (47.0 g) which was taken to the next step without additional purification.
  • 4-(2-methylprop-l-en-l-yl)-2-(piperazin-l-yl)benzonitrile 47 g, 194.8 mmol
  • Et 3 N 81.0 mL, 584.3 mmol
  • the solution was stirred at 0 °C for 10 minutes, after which Boc-anhydride (63.8 g, 292.5 mmol) was added and the reaction was allowed to continue stirring at room temperature for an additional 3 hours.
  • reaction mixture was diluted with cold water and extraction with CH 2 CI 2 (3 x 300 mL) was performed. The combined organic layers were washed with sat. brine, dried over anhydrous sodium sulfate and evaporated under reduced pressure.
  • the crude obtained was purified by column chromatography over silica gel (20-30% EtOAc in hexane) to afford tert-butyl 4-(2- cyano-5-(2-methylprop-l-en-l-yl)phenyl)piperazine-l-carboxylate as a white solid (53.2 g, 80%).
  • reaction mixture was evaporated under reduced pressure to remove the volatiles.
  • the residue was dissolved with ethyl acetate and washed with water, sat. brine, dried over anhydrous sodium sulfate and evaporated under reduced pressure to afford a crude residue.
  • the crude compound thus obtained was purified by column chromatography over silica gel eluting with 15-20% EtOAc in hexane to afford 2,6- difluoro-4-(2-methylprop-l-en-l-yl)benzonitrile as colorless gum (4.0 g, 90%).
  • methyl 4-bromo-2-(piperazin-l-yl)benzoate 5.0 g, 16.72 mmol
  • 1,4-dioxane 50 mL
  • Et 3 N 6.95 mL, 50.15 mmol
  • 2-(chloromethyl)benzo[d]thiazole 3.65 g, 20.06 mmol
  • Step ( ii) 2-Fluoro-4-( 2-methylprop-l-en-l-yl)-6-(piperazin-l-yl) benzonitrile
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure afforded 2-fluoro-4-(2-methylprop-l-en-l-yl)-6- (piperazin-l-yl)benzonitrile which was taken to the next step without additional purification.
  • Step ( i) 2-Chloro-6-methyl-4-(2-methylprop-l-en-l-yl) benzonitrile
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by column chromatography over silica gel (10-15% EtOAc in hexane) afforded 2-chloro-6-methyl-4-(2-methylprop-l-en-l- yl)benzonitrile as an off-white solid (0.21 g, 77%).
  • tert-butyl 4-(2-cyano-3-methyl-5-(2-methylprop-l-en-l- yl)phenyl)piperazine-l-carboxylate (0.15 g, 0.42 mmol) in MeOH (20 mL) was hydrogenated over 10% Pd/C (40 mg) under 5 Kg/cm 2 H 2 pressure using a Parr hydrogenator for 2 h at ambient temperature.
  • the reaction mixture was filtered through a Celite ® bed and was concentrated in vacuo , yielding the envisaged hydrogenated compound as a colorless gum (0.12 g, 80%).
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by column chromatography over silica gel (10-13% EtOAc in hexane) afforded 2-chloro-4- cyclopropyl-6-methylbenzonitrile as a gummy liquid (0.21 g, 68%).
  • 2-chloro-4-cyclopropyl-6-methylbenzonitrile 0.2 g, 1.047 mmol
  • 1,4-dioxane 10 mL
  • tert-butyl piperazine- 1-carboxylate 0.232 g, 1.25 mmol
  • K3PO4 0.555 g, 2.617 mmol
  • BINAP 0.026 g, 0.0418 mmol
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by column chromatography over silica gel (10-12% EtOAc in hexane) afforded 2,6-dichloro-4- cyclopropylbenzonitrile as a gummy liquid (0.74 g, 88%).
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by column chromatography over silica gel (10-12% EtOAc in hexane) afforded 2,6-dichloro-4-(2-methylprop-l-en-l-yl)benzonitrile as a gummy liquid (0.4 g, 88%).
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by column chromatography over silica gel (10-15% EtOAc in hexane) afforded 2- chloro-6-cyclopropyl-4-(2-methylprop-l-en-l-yl)benzonitrile as a gummy liquid (0.175 g, 87%).
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re- dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by column chromatography over silica gel (10-15% EtOAc in hexane) afforded 2-chloro-6-ethyl-4-(2- methylprop-l-en-l-yl)benzonitrile as a gummy liquid (0.169 g, 87%).
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by column chromatography over silica gel (15-20% EtOAc in hexane) afforded 2,6-difluoro-4-(2-methylprop-l-en-l-yl)benzonitrile as a colorless gum (7.10 g, 80%).
  • a stirred solution of 2,6-difluoro-4-(2-methylprop-l-en-l-yl)benzonitrile (7.0 g, 36.2 mmol) in MeOH was hydrogenated over 10% Pd/C (1.4 g) under 5 Kg/cm 2 H 2 pressure using a Parr hydrogenator for 3 h at ambient temperature. After confirming the completion of reaction by LC-MS, the reaction mixture was filtered through a Celite ® bed and was concentrated in vacuo , yielding the envisaged hydrogenated compound as a viscous liquid (5.81g, 83%).
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and solvent evaporation under reduced pressure afforded 2-(piperazin-l-yl)-4-(prop-l-en-l-yl)benzonitrile (47.0 g) which was taken to the next step without additional purification (used in method L, step 2).
  • methyl 2-fluoro-4-((tetrahydro-2H-pyran-2-yl)oxy)benzoate 6.0 g, 23.60 mmol
  • piperazine 10.15 g, 118.02 mmol
  • the reaction mixture was evaporated to dryness, water was added and the obtained solution was extracted with EtOAc.
  • the combined organic layers were washed with sat. brine, dried over anhydrous sodium sulfate and evaporated under reduced pressure to afford a crude residue (6.8 g crude), which was taken to the next step without any additional purification.
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re- dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by column chromatography over silica gel (30-40% EtOAc in hexane) yielded the desired substituted nitrile.
  • 4-alkoxy-5-bromo-2-fluorobenzonitrile (1 equiv., 0.371 mmol) in 1,4-dioxane (10 mL) was added cyclopropylboronic acid (1.2 equiv., 39 mg, 0.445 mmol), followed by K 2 CO 3 (2.5 equiv., 128 mg, 0.927 mmol) and the resulting mixture was bubbled with argon for 20 min.
  • reaction mixture was evaporated under reduced pressure to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and concentration in vacuo , followed by column chromatography over silica gel (15-20% EtOAc in hexane) yielded the desired 4-alkoxy-5-ethyl-2-fluorobenzonitrile.
  • the obtained residual compound was purified via column chromatography over silica gel (eluting with 10-15% EtOAc in hexane), affording the 2-amino-4-alkoxy-6- fluorobenzonitrile of interest as an off-white solid.
  • 2-amino-4-alkoxy-6-fluorobenzonitrile (1 equiv., 12.88 mmol) in 1,4-dioxane (10 mL) was added aqueous HBr (25 mL) at 0 °C, after which the solution was allowed to warm up to room temperature.
  • the reaction mixture was cooled down to -5 °C and a solution of NaNO 2 (1.2 equiv, 1.06 g, 15.4 mmol) in water (5 mL) was carefully added.
  • reaction mixture Upon completion of the addition, the reaction mixture was kept stirring at -5 °C for an additional hour. Next, this reaction mixture was slowly transferred to a pre-cooled solution of CuBr (1.1 equiv., 2.03 g, 14.2 mmol) in aqueous HBr (5 mL), after which the combined solution was left stirring at 0 °C for 2 h. After completion of the reaction was confirmed by TLC, the reaction mixture was neutralized with sat. NaHCO 3 and extraction with ethyl acetate was performed. The combined organic layers were subsequently washed with water, sat. brine and dried over anhydrous sodium sulfate.
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by column chromatography over silica gel (10-20% EtOAc in hexane) yielded the desired 4-alkoxy-2-cyclopropyl-6-fluorobenzonitrile.
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by column chromatography over silica gel (15-20% EtOAc in hexane), yielded the desired 4-cyclopropyl-2,6-difluorobenzonitrile as a pale- yellow solid (64 mg, 85%).
  • Step ( ii) 2-Fluoro-4-cyclopropyl-6-(piperazin-l-yl) benzonitrile
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by column chromatography over silica gel (15-18% EtOAc in hexane), afforded 2-chloro-4- cyclopropyl-6-ethylbenzonitrile as a gummy liquid (0.29 g, 77%).
  • Step ( ii) 5-Fluoro-4-( 2-methylprop-l-en-l-yl)-2-(piperazin-l-yl) benzonitrile
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure afforded 5-fluoro-4-(2-methylprop-l-en-l-yl)-2- (piperazin-l-yl)benzonitrile which was taken to the next step without additional purification.
  • tert-butyl 4-(2-cyano-4-fluoro-5-(2-methylprop-l-en-l- yl)phenyl)piperazine-l -carboxylate (0.85 g, 2.36 mmol) in MeOH (30 mL) was hydrogenated over 10% Pd/C (0.2 g) under 5 Kg/cm 2 H 2 pressure using a Parr hydrogenator for 2 h at ambient temperature.
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by column chromatography over silica gel (15-20%
  • Step ( ii) 5-Fluoro-4-cyclopropyl-2-(piperazin-l-yl) benzonitrile
  • Step ( ii) 5-Methyl-4-( 2-methylprop-l-en-l-yl)-2-(piperazin-l-yl) benzonitrile
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure afforded 5-methyl-4-(2-methylprop-l-en-l-yl)-2- (piperazin-l-yl)benzonitrile which was taken to the next step without additional purification.
  • 4-bromo-2-fluoro-5-methylbenzonitrile 1 equiv., 200 mg, 0.934 mmol
  • acetonitrile 15 mL
  • piperazine 5 equiv., 402 mg, 4.67 mmol
  • the reaction mixture was evaporated to dryness, water was added and the resulting solution was extracted with EtOAc. The combined organic layers were washed with sat. brine, dried over anhydrous sodium sulfate and concentrated in vacuo.
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by column chromatography over silica gel (25-30% EtOAc in hexane), afforded the targeted 4-cyclopropyl-5-methyl-2- (piperazin-l-yl)benzonitrile as a gummy liquid (150 mg, 87%).
  • Et 3 N 2.63 mL, 18.78 mmol
  • DMAP a catalytic amount of DMAP and Boc-anhydride
  • the reaction mixture was brought to 80 °C and was allowed to continue at 80 °C for 10 h. After completion of the reaction was confirmed by TLC, cold water was added to the reaction which was extracted with EtOAc.
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure afforded tert- butyl (5-cyano-2-cyclopropyl-4-(piperazin-l-yl)phenyl)carbamate which was taken to the next step without additional purification.
  • acetonitrile 50 mL
  • acetic anhydride 4.7 mL, 46.51 mmol
  • the reaction mixture was brought to 70 °C and was allowed to continue at 70 °C for 3 h.
  • cold water was added to the reaction mixture which was then extracted with EtOAc. The combined organic layers were washed with sat.
  • Step ( ii) N-( 2-Bromo-5-cyano-4-(piperazin-l-yl)phenyl)acetamide
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by additional column chromatography over silica gel (20-25% EtOAc in hexane) yielded N-(5-cyano-2-cyclopropyl-4-(piperazin-l-yl)phenyl)acetamide as a gummy solid (125 mg, 57%).
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re- dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and solvent evaporation under reduced pressure afforded 2- (piperazin-l-yl)-4-cyclopropylbenzonitrile, which was further purified via column chromatography over silica gel (10-20% EtOAc in hexane) to obtain the envisaged substituted benzonitrile as a pale-yellow gum (0.21 g, 82%).
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure afforded 3-fluoro-4-(2-methylprop-l-en-l-yl)-2- (piperazin-l-yl)benzonitrile which was taken to the next step without additional purification.
  • Et 3 N 0.10 mL, 0.705 mmol
  • the solution was stirred at 0 °C for 10 minutes, after which Boc-anhydride (0.092 g, 0.423 mmol) was added and the reaction was allowed to continue at room temperature for an additional 14 hours.
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re- dissolved with ethyl acetate and washed with water and sat. brine. Drying over anhydrous sodium sulfate and concentration in vacuo , followed by column chromatography over silica gel (25-30% EtOAc in hexane), afforded the desired compound as a pale-yellow gum (0.22 g, 91%).
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re- dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by column chromatography over silica gel (20-30% EtOAc in hexane), afforded the desired 2-chloro-6- cyclopropyl-pyridine-3-carbonitrile as a colorless gum (252 mg, 61%).
  • Step ( ii) 6-Cyclopropyl-2-piperazin-l-yl-pyridine-3-carbonitrile
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by column chromatography over silica gel (20-30% EtOAc in hexane) afforded 2-chloro-6-(2-methylprop-l-enyl)pyridine-3- carbonitrile as a colorless gum (0.22 g, 40%).
  • 2-chloro-6-(2-methylprop-l-enyl)pyridine-3-carbonitrile 0.220 g, 1.14 mmol
  • 1,4-dioxane 10 mL
  • tert-butyl piperazine- 1-carboxylate 0.319 g, 1.71 mmol
  • K3PO4 0.06 g, 2.86 mmol
  • BINAP 0.071 g, 0.114 mmol
  • tert-butyl 4-[3-cyano-6-(2-methylprop-l-enyl)-2- pyridyl]piperazine-l-carboxylate (0.15 g, 0.434 mmol) in MeOH (10 mL) was hydrogenated over 10% Pd/C (0.04 g) under 5 Kg/cm 2 H 2 pressure using a Parr hydrogenator for 2 h at ambient temperature.
  • the reaction mixture was filtered through a Celite ® bed and was concentrated in vacuo , yielding the envisaged hydrogenated compound as a colorless viscous liquid (0.12 g, 80%).
  • reaction mixture was evaporated in vacuo to remove the volatiles and the residue was re-dissolved with ethyl acetate and washed with water and sat. brine. Subsequent drying over anhydrous sodium sulfate and evaporation under reduced pressure, followed by column chromatography over silica gel (2-3% MeOH in CH 2 CI 2 ), afforded the desired 5-cyclopropyl-3-piperazin-l-yl-pyridine-2-carbonitrile as a colorless gum (155 mg, 60%).

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PCT/EP2022/071231 2021-07-30 2022-07-28 Compounds for the treatment of pain, in particular neuropathic pain, and/or other diseases or disorders that are associated with at2r and/or at2r mediated signaling Ceased WO2023006893A1 (en)

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IL310330A IL310330A (en) 2021-07-30 2022-07-28 Compounds for the treatment of pain, in particular neuropathic pain, and/or other diseases or disorders that are associated with at2r and/or at2r mediated signaling
CN202280066310.6A CN118159530A (zh) 2021-07-30 2022-07-28 用于治疗疼痛、特别是神经性疼痛和/或与at2r和/或at2r介导的信号传导相关的其它疾病或障碍的化合物
CR20240041A CR20240041A (es) 2021-07-30 2022-07-28 Compuestos para el tratamiento del dolor, en particular el dolor neuropático, y/u otras enfermedades o trastornos que se asocian con AT2R y/o señalización mediada por AT2R
AU2022318349A AU2022318349B2 (en) 2021-07-30 2022-07-28 Compounds for the treatment of pain, in particular neuropathic pain, and/or other diseases or disorders that are associated with at2r and/or at2r mediated signaling
US18/293,160 US20240368133A1 (en) 2021-07-30 2022-07-28 Compounds for the Treatment of Pain, in Particular, Neuropathic Pain, and/or Other Diseases or Disorders that are Associated with AT2R and/or AT2R Mediated Signaling
KR1020247006999A KR20240063881A (ko) 2021-07-30 2022-07-28 통증, 특히 신경병증성 통증, 및/또는 at2r 및/또는 at2r 매개 신호전달과 연관된 다른 질환 또는 장애의 치료를 위한 화합물
MX2024001155A MX2024001155A (es) 2021-07-30 2022-07-28 Compuestos para el tratamiento del dolor, en particular el dolor neuropatico, y/u otras enfermedades o trastornos que se asocian con at2r y/o se?alizacion mediada por at2r.
JP2024505546A JP7637827B2 (ja) 2021-07-30 2022-07-28 疼痛、特に神経障害性疼痛、並びに／又は、ａｔ２ｒ及び／若しくはａｔ２ｒ媒介性シグナル伝達に関連する他の疾患若しくは障害の治療のための化合物
EP22761413.8A EP4377307A1 (en) 2021-07-30 2022-07-28 Compounds for the treatment of pain, in particular neuropathic pain, and/or other diseases or disorders that are associated with at2r and/or at2r mediated signaling
CA3227194A CA3227194A1 (en) 2021-07-30 2022-07-28 Compounds for the treatment of pain, in particular neuropathic pain, and/or other diseases or disorders that are associated with at2r and/or at2r mediated signaling
PE2024000173A PE20241304A1 (es) 2021-07-30 2022-07-28 Compuestos para el tratamiento del dolor, en particular el dolor neuropatico, y/u otras enfermedades o trastornos que se asocian con at2r y/o senalizacion mediada por at2r
DO2024000017A DOP2024000017A (es) 2021-07-30 2024-01-24 Compuestos para el tratamiento del dolor, en particular el dolor neuropático, y/u otras enfermedades o trastornos que se asocian con at2r y/o señalización mediada por at2r
CONC2024/0000880A CO2024000880A2 (es) 2021-07-30 2024-01-30 Compuestos para el tratamiento del dolor, en particular el dolor neuropático, y/u otras enfermedades o trastornos que se asocian con at2r y/o señalización mediada por at2r
JOJO/P/2024/0019A JOP20240019A1 (ar) 2021-07-30 2024-01-30 مركبات لعلاج الآلام، خاصةً ألم الاعتلال العصبي، و/أو أمراض أو اضطرابات أخرى مرتبطة بمستقبل at2r و/أو الإشارات التي يتم إرسالها بواسطة المستقبل at2r
JP2025023227A JP7836437B2 (ja) 2021-07-30 2025-02-17 疼痛、特に神経障害性疼痛、並びに／又は、ａｔ２ｒ及び／若しくはａｔ２ｒ媒介性シグナル伝達に関連する他の疾患若しくは障害の治療のための化合物
AU2025271263A AU2025271263A1 (en) 2021-07-30 2025-11-25 Compounds For The Treatment Of Pain, In Particular Neuropathic Pain, And/Or Other Diseases Or Disorders That Are Associated With AT2R And/Or AT2R Mediated Signaling

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Cited By (5)

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WO2024199402A1 (zh) * 2023-03-29 2024-10-03 武汉人福创新药物研发中心有限公司 一种作为at2r拮抗剂的杂环化合物
US12122750B2 (en) 2022-05-17 2024-10-22 Eli Lilly And Company AT2R antagonists and uses thereof
WO2024255859A1 (zh) * 2023-06-16 2024-12-19 武汉人福创新药物研发中心有限公司 作为at2r拮抗剂的杂环化合物及其用途
WO2025077774A1 (zh) * 2023-10-10 2025-04-17 武汉人福创新药物研发中心有限公司 一种at2r拮抗剂及其用途
WO2025180473A1 (zh) * 2024-02-29 2025-09-04 上海汇伦医药股份有限公司 含四唑类化合物、其药物组合物及其用途

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US12122750B2 (en) 2022-05-17 2024-10-22 Eli Lilly And Company AT2R antagonists and uses thereof
WO2024199402A1 (zh) * 2023-03-29 2024-10-03 武汉人福创新药物研发中心有限公司 一种作为at2r拮抗剂的杂环化合物
WO2024255859A1 (zh) * 2023-06-16 2024-12-19 武汉人福创新药物研发中心有限公司 作为at2r拮抗剂的杂环化合物及其用途
WO2025077774A1 (zh) * 2023-10-10 2025-04-17 武汉人福创新药物研发中心有限公司 一种at2r拮抗剂及其用途
WO2025180473A1 (zh) * 2024-02-29 2025-09-04 上海汇伦医药股份有限公司 含四唑类化合物、其药物组合物及其用途

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