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Definitions

• the present disclosure relates to novel compounds which are relaxin family peptide receptor 1 (RXFP1 ) agonists, compositions containing them, and methods of using them, for example in the treatment of heart failure, fibrotic diseases, and related diseases such as lung disease (e.g., idiopathic pulmonary fibrosis), kidney disease (e.g., chronic kidney disease), and hepatic disease (e.g., non-alcoholic steatohepatitis and portal hypertension).
• RXFP1 relaxin family peptide receptor 1
• the human relaxin hormone (also called relaxin or H2 relaxin) is a 6-kDa peptide composed of 53 amino acids whose activity was initially discovered when Frederick Hisaw in 1926 injected crude extracts from swine corpus luteum into virgin guinea pigs and observed a relaxation of the fibrocartilaginous pubic symphysis joint (Hisaw FL., Proc. Soc. Exp. Biol. Med., 1926, 23, 661-663).
• the relaxin receptor was previously known as Lgr7 but is now officially termed the relaxin family peptide receptor 1 (RXFP1 ) and was deorphanized as a receptor for relaxin in 2002 (Hsu SY., el al., Science, 2002, 295, 671-674).
• RXFP1 is reasonably well conserved between mouse and human with 85% amino acid identity and is essentially ubiquitously expressed in humans and in other species (Halls ML., et al., Br. J. Pharmacol., 2007, 150, 677-691).
• the cell signaling pathways for relaxin and RXFP1 are cell type dependent and quite complex (Halls ML., et al.. Br. J.
• Additional vascular adaptations include an -30% increase in global arterial compliance that is important for maintaining efficient ventricular-arterial coupling, as well as an -50% increase in both renal blood flow' (RBF) and glomerular filtration rate (GFR), important tor metabolic waste elimination (Jeyabalan AC., K.P., Reanl and Electolyte Disorders. 2010, 462-518), (Poppas A., et al., Circ., 1997, 95, 2407-2415). Both pre-clinical studies in rodents as well as clinical studies performed in a variety of patient settings, provide evidence that relaxin is involved, at least to some extent, in mediating these adaptive physiological changes (Conrad KP., Regul. Integr. Comp.
• Heart failure defined hemodynamical ly as “systemic perfusion inadequate to meet the body's metabolic demands as a result of impaired cardiac pump function”, represents a tremendous burden on today’s health care system with an estimated United States prevalence of 5.8 million and greater than 23 million worldwide (Roger VL., et al., Circ. Res., 2013, 113, 646-659). It is estimated that by 2.030, an additional 3 million people in the United States alone will have HF, a 25% increase from 2010. The estimated direct costs (2008 dollars) associated with HF for 2010 was $25 billion, projected to grow' to $78 B by 2030 (Heidenreich PA., et al., Circ., 2011, 123, 933-944).
• HF HF-related diseases
• Major symptoms and signs of HF include: 1) dyspnea (difficulty in breathing) resulting from pulmonary' edema due to ineffective forward flow from the left ventricle and increased pressure in the pulmonary capillary' bed; 2) lower extremity edema occurs when the right ventricle is unable to accommodate systemic venous return; and 3) fatigue due to the failing heart’s inability to sustain sufficient cardiac output (CO) to meet the body's metabolic needs (Kemp CD., & Conte JV., Cardiovasc. Pathol., 2011, 21, 365-371).
• HF patients are often described as “compensated” or “decompensated”.
• symptoms are stable, and many overt features of fluid retention and pulmonary' edema are absent.
• Decompensated heart failure refers to a deterioration, which may present as an acute episode of pulmonary edema, a reduction in exercise tolerance, and increasing breathlessness upon exertion (Millane T., et al., BMJ, 2000, 320, 559-562).
• HF was primarily described as “systolic HF” in which decreased left-ventricular (LV) contractile function limits the expulsion of blood and hence results in a reduced ejection fraction (EF is stroke volume/end diastolic volume), or “diastolic HF” in which active relaxation is decreased and passive stiffness is increased limiting LV filling during diastole, however overall EF is maintained (Borlaug BA. & Paulus WJ., Eur Heart J., 2011, 32, 670-679).
• Serelaxin an intravenous (IV) formulation of the recombinant human relaxin peptide with a relatively short first-phase pharmacokinetic half-life of 0.09 hours, is currently being developed for the treatment of HF (Novartis, 2014). Serelaxin has been given to normal healthy volunteers (NHV) and demonstrated to increase RBF (Smith MC., el al., J. Am. Soc. Nephrol. 2006, 17, 3192-3197) and estimated GFR (Dahlke M., et al., J. Clin. Pharmacol., 2015, 55, 415-422). Increases in RBF were also observed in stable compensated HF patients (Voors AA., et al., Or.
• kidney Garber SL., et al., Kidney Int., 2001, 59, 876-882
• liver injury Bennett RG., Liver Int., 2014, 34, 416-426.
• a large body of evidence supports a role for relaxin-dependent agonism of RXFP1 mediating the adaptive changes that occur during mammalian pregnancy, and that these changes translate into favorable physiological effects and outcomes when relaxin is given to HF patients.
• Additional preclinical animal studies in various disease models of lung, kidney, and liver injury provide evidence that relaxin, when chronically administered, has the potential to provide therapeutic benefit for multiple indications m addition to HF. More specifically, chronic relaxin administration could be of benefit to patients suffering from lung disease (e.g., idiopathic pulmonary fibrosis), kidney disease (e.g., chronic kidney disease), or hepatic disease (e.g., nonalcoholic steatohepatitis and portal hypertension).
• lung disease e.g., idiopathic pulmonary fibrosis
• kidney disease e.g., chronic kidney disease
• hepatic disease e.g., nonalcoholic steatohepatitis and portal hypertension.
• the present invention provides novel substituted naphthalene and quinoline compounds, their analogues, including stereoisomers, tautomers, pharmaceutically acceptable salts, or solvates thereof, which are useful as RXFP1 receptor agonists.
• the present invention also provides processes and intermediates for making the compounds of the present invention.
• the present invention also provides pharmaceutical compositions comprising a pharmaceutically acceptable carrier and at least one of the compounds of the present invention or stereoisomers, tautomers, pharmaceutically acceptable salts, or solvates thereof.
• the compounds of the invention may be used, for example, in the treatment and/or prophylaxis of heart failure, fibrotic diseases, and related diseases, such as; lung disease (e.g., idiopathic pulmonary fibrosis), kidney disease (e.g., chronic kidney disease), or hepatic disease (e.g., non-alcoholic steatohepatitis and portal hypertension).
• lung disease e.g., idiopathic pulmonary fibrosis
• kidney disease e.g., chronic kidney disease
• hepatic disease e.g., non-alcoholic steatohepatitis and portal hypertension.
• the compounds of the present invention may be used in therapy.
• the compounds of the present invention may be used for the manufacture of a medicament for the treatment and/or prophylaxis of heart failure.
• the compounds of the invention can be used alone, in combination with other compounds of the present invention, or in combination with one or more, preferably one to two other agent! s).
• the invention encompasses compounds of Formula (I), which are RXFP1 receptor agonists, compositions containing them, and methods of using them.
• the present invention provides, inter alia, compounds of Formula (I): or pharmaceutically acceptable salts thereof, wherein:
• Q at each occurance, is CH, CR 1 , or N; provided that no more than one Q is N;
• R 1 is halo or C1-4 alkyl substituted with 0-5 halo
• R 2 is halo, CN, -OC1-4 alkyl, or C1-4 alkyl substituted with 0-5 halo or OH;
• R 12 is H, C1-3 alkyl, or aryl
• R a is H, C 1-6 alkyl substituted with 0-5 R e , C2-6 alkenyl substituted with 0-5 R e , C2-6 alkynyl substituted with 0-5 R e , -(CH2)n-C3-10 carbocyclyl substituted with 0-5 R e , or -(CH2)n-heterocyclyl substituted with 0-5 R e ; or R a and R a together with the nitrogen atom to which they are both attached form a heterocyclyl substituted with 0-5 R e ;
• R b is H, C 1-6 alkyl substituted with 0-5 R e , C2-6 alkenyl substituted with 0-5 R e , C2-6 alkynyl substituted with 0-5 R e , -(CH2)n-C3-10carbocyclyl substituted with 0-5 R e , or -(CH2)n-heterocyclyl substituted with 0-5 R e ;
• R c is C 1-6 alkyl substituted with 0-5 R 6 , C 2-6 alkenyl substituted with 0-5 R e , C2-6 alkynyl substituted with 0-5 R e , C3-6 carbocyclyl, or heterocyclyl;
• R d is H or C 1-4 alkyl
• R f is H, C 1-6 alkyd, C3-6 cycloalkyl, aryl, or heterocyclyl; or R f and R f together with the nitrogen atom to which they are both attached form a heterocyclyl;
• R g is halo, CN, OH, C 1-6 alkyl, C3-6 cycloalkyl, or aryl; n is zero, 1, 2, or 3; and p is zero, 1, or 2.
• R g is halo, CN, OH, C 1-6 alkyl, C3-6 cycloalkyl, or aryl; n is zero, 1, 2, or 3; and p is zero, 1, or 2.
• R 1 is halo or C1-3 alkyl substituted with 0-4 halo
• R 2 is halo, -OC1-3 alkyl, or Ci-3 alkyl
• R 4a is halo
• R 4b is C1-4 alkyl substituted with 0-4 halo
• R 12 is H, C1-3 alkyl, or and
• R a is H, C1-5 alkyl substituted with 0-5 Re, C2-5 alkenyl substituted with 0-5 R e , C2-5 alkynyl substituted with 0-5 Re, -(CH2)n-C3-10carbocyclyl substituted with 0-5 Re, or -(CH2)n-heterocyclyl substituted with 0-5 R e ; or R a and R a together with the nitrogen atom to which they are both attached form a heterocyclyl substituted with 0-5 R e ;
• R b is H, C1-5 alkyl substituted with 0-5 R e , C2-5 alkenyl substituted with 0-5 Rc, C2-5 alkynyl substituted with 0-5 Re, -(CH2)n-C3-10carbocyc1yl substituted with 0-5 R e , or -(CH2)n-heterocycIyl substituted with 0-5 R e ;
• R e is C1-5 alkyl substituted with 0-5 Re, C2-5 alkenyl substituted with 0-5 Re, C2-5 alkynyl substituted with 0-5 R e , C3-6 carbocyclyl, or heterocyclyl;
• R d is H or C 1-4 alkyl
• R f is H, C1-5 alkyl, C3-6 cycloalkyl, or aryl; or R f and R f together with the nitrogen atom to which they are both attached form a heterocyclyl;
• R g is halo, CN, OH, C1-6 alkyl, C3-6 cycloalkyl, or aryl; n is zero, 1, 2, or 3; and p is zero, 1, or 2.
• R 1 is Br or CF3
• R 2 is -OC1-4 alkyl substituted with 0-4 halo
• R 4a is halo
• R 4b is C1-3 alkyl substituted with 0-4 F;
• R 6 is halo, CN, C1-3 alkyl, -OH, or -OC1-4 alkyl;
• R a is H, C1-5 alkyl substituted with 0-4 R e , C2-5 alkenyl substituted with 0-4 R e , C2-5 alkynyl substituted with 0-4 R e , -(CH2)n-C3-10 carbocyclyl substituted with 0-4 R e , or -(CH2)n-heterocyclyl substituted with 0-4 R e ; or R a and R a together with the nitrogen atom to w hich they are both attached form a heterocyclyl substituted with 0-4 R e ;
• R b is H, C1-5 alkyl substituted with 0-4 R e , C2-5 alkenyl substituted with 0-4 R e , C2-5 alkynyl substituted with 0-4 R e , -(CH2)n-C3-10 carbocyclyl substituted with 0-4 R e , or -(CH2)n-heterocyclyl substituted with 0-4 R e ;
• R c is C1-5 alkyl substituted with 0-4 R e , C2-5 alkenyl substituted with 0-4 R e , C2-5 alkynyl substituted with 0-4 R e , C3-6 carbocyclyl, or heterocyclyl;
• R d is H or C1-2 alkyl
• R f is H, C1-6 alkyl, C3-6 cycloalkyl, or aryl; or R f and R f together with the nitrogen atom to which they are both attached form a heterocyclyl;
• R g is halo, CN, OH, C1-6 alkyl, C3-6 cycloalkyl, or aryl; n is zero, 1, 2, or 3; and p is zero, 1, or 2.
• the present invention provides compounds of Formula (IV): or pharmaceutically acceptable salts thereof, wherein:
• R 1 is Br
• R 2 is -OC1-3 alkyl
• R 4a is F
• R 4b is C F3
• R 6 is halo
• R a is H, C1-3 alkyl substituted with 0-3 R e , -(CH2)n-C3-6 cycloalkyl substituted with 0-3 R e , phenyl substituted with 0-3 R e ;
• R b is H or heterocyclyl substituted with 0-3 R e ;
• the present invention provides compounds of Formula (V): or pharmaceutically acceptable salts thereof, wherein:
• R 1 is halo or C1-3 alkyl substituted with 0-5 halo
• R 2 is -OC1-4 alkyl substituted with 0-4 halo
• R 4a is halo
• R 4b is C1-3 alkyl substituted with 0-4 halo
• R 12 is H, C1-3 alkyl, or aryl
• R a is H, C1 -5 alkyl substituted with 0-4 R e , C2-5 alkenyl substituted with 0-4 R e , C2-5 alkynyl substituted with 0-4 R e , -(CH2)n-C3-10carbocyclyl substituted with 0-4 R e , or -(CH2)n-heterocyclyl substituted with 0-4 R e ; or R a and R a together with the nitrogen atom to which they are both attached form a heterocyclyl substituted with 0-4 R e ;
• R b is H, C1-5 alkyl substituted with 0-4 R e , C2-5 alkenyl substituted with 0-4 R e , C2-5 alkynyl substituted with 0-4 R e , -(CH2)n-C3-10 carbocyclyl substituted with 0-4 R e , or -(CH2)n-heterocyclyl substitute
• R c is C 1-5 alkyl substituted with 0-4 R e , C2-5 alkenyl substituted with 0-4 R e , C2-5 alkynyl substituted with 0-4 R e , C3-6 carbocyclyl, or heterocyclyl;
• R d is H or C1-2 alkyl
• R f is H, C1-6 alkyl, C3-6 cycloalkyl, or aryl; or R f and R f together with the nitrogen atom to which they are both attached tonn a heterocyclyl;
• R g is halo, CN, OH, C1-6 alkyl, C3-6 cycloalkyl, or aryl; n is zero, 1 , 2, or 3; and p is zero, 1 , or 2.
• R g is halo, CN, OH, C1-6 alkyl, C3-6 cycloalkyl, or aryl; n is zero, 1 , 2, or 3; and p is zero, 1 , or 2.
• R 2 is -OCH 3 ;
• R 4a is F
• R 4b is CF 3 ;
• R 6 is halo, -OH, or C1-4 alkyl substituted with 0-1 OH -;
• R7 is C1-2 alkyl substituted with 0-1 R 8 and 0-1 R 9 ;
• R 9 is - O R b or -NR 3 R 3 ;
• R 10 is H or C1-3 alkyl
• R a is H or C1-6 alkyl
• R b is H or C1-6 alkyl.
• the present invention provides compounds of Formula (V) or pharmaceutically acceptable salts thereof, wherein:
• R 2 is -OCH 3 ;
• R 4a is F
• R 4b is CF3
• R 6 is halo, C1-4 alkyl, -OH, or -OC1-4 alkyl
• R 7 is C1-4 alkyl substituted with 0-1 R 8 and 0-1 R 9 ;
• R 9 is OH
• R b is H or C1-4 alkyl.
• the present invention provides compounds of Formula (V), or pharmaceutically acceptable salts thereof, wherein:
• R2 is -OCH3
• R 4a is F
• R 4b is CF3
• R 10 is H or C1-3 alkyl
• R a is H or C1-4 alkyl
• R b is H or C1-4 alkyl.
• R 4a is halo
• R 4b is C1-3 alkyl substituted with 0-4 halo
• R c is C1-3 alkyl substituted with 0-2 R e ;
• R e is -OR f ;
• R 1 is H or C1-2 alkyl.
• the present invention provides compounds of Formula (VI): or pharmaceutically acceptable salts thereof, wherein:
• R 2 is -OC1-3 alkyl
• R 4a is halo
• R 4b is C1-4 alkyl substituted with 0-4 halo
• R 9 is OR b .
• R 12 is H, C1-3 alkyl, or aryl
• R a is H, C1-5 alkyl substituted with 0-5 R e , C2-5 alkenyl substituted with 0-5 R e , C2-5 alky m yl substituted with 0-5 R e , -(CH2)n-C3-10 carbocyclyl substituted with 0-5 R e , or -(CH2)n-heterocyclyl substituted with 0-5 R e ; or R a and R a together with the nitrogen atom to which they are both attached form a heterocyclyl substituted with 0-5 R e ;
• R b is H, C1-5 alkyl substituted with 0-5 R e , C2-5 alkenyl substituted with 0-5 R e , C2-5 alkynyl substituted with 0-5 R e , -(CH2)n-C3-10carbocyclyl substituted with 0-5 R e , or -(CH2)n-heterocycIyl substituted with 0-5 R e ;
• R c is C1-5 alkyl substituted with 0-5 R e , C2-5 alkenyl substituted with 0-5 R e , C2-5 alkynyl substituted with 0-5 R e , C3-6 carbocyclyl, or heterocyclyl;
• R d is H or C1-4 alkyl
• R 1 is H, C1 -5 alkyl, C3-6 cycloalkyl, or aryl; or R 1 and R f together with the nitrogen atom to which they are both attached form a heterocyclyl;
• R 8 is halo, CN, OH, C1-6 alkyl, C3-6 cycloalkyl, or aryl; n is zero, 1, 2, or 3; and p is zero, 1, or 2.
• R 8 is halo, CN, OH, C1-6 alkyl, C3-6 cycloalkyl, or aryl; n is zero, 1, 2, or 3; and p is zero, 1, or 2.
• R 2 is -OC1-3 alkyl
• R 4a is halo
• R 4b is C1-4 alkyl substituted with 0-4 halo
• R 6 is halo, O, -OH, -OC1-4 alkyl, or Ci-4 alkyl substituted with 0-2 halo or OH;
• R 12 is H, C1-3 alkyl, or and
• R a is H, C1-5 alkyl substituted with 0-5 R e , C2-5 alkenyl substituted with 0-5 R e , C2-5 alkynyl substituted with 0-5 R e , -(CHzJn-Cs-iocarbocyclyl substituted with 0-5 R e , or -(CH2)n-heterocyclyl substituted with 0-5 R e ; or R a and R a together with the nitrogen atom to which they are both attached form a heterocyclyl substituted with 0-5 R e ;
• R b is H, C1-5 alkyl substituted with 0-5 R e , C2-5 alkenyl substituted with 0-5 R c , C2-5 alkynyl substituted with 0-5 R e , -(CH2)n-C3-10carbocyc1yl substituted with 0-5 R e , or -(CH2)n-heterocycIyl substituted with 0-5 R e ;
• R e is C1-5 alkyl substituted with 0-5 R e , C2-5 alkenyl substituted with 0-5 R 1 , C2-5 alkynyl substituted with 0-5 R e , C3-6 carbocyclyl, or heterocyclyl;
• R d is H or C1-4 alkyl
• R f is H, C1-5 alkyl, C3-6 cycloalkyl, or aryl; or R f and R f together with the nitrogen atom to which they are both attached form a heterocyclyl;
• R g is halo, CN, OH, C1-6 alkyl, C3-6 cycloalkyl, or aryl; n is zero, 1, 2, or 3; and p is zero, 1, or 2.
• R 2 is -OC1-3 alkyl
• R 4a is halo
• R 4b is C1 -4 alkyl substituted with 0-4 halo
• R 6 is halo, O, -OH, -OC1-4 alkyl, or Cia alkyl substituted with 0-2 halo or OH;
• C3-6 cycloalkyl substituted with 0-5 R e , or a 4- to 6-membered heterocyclyl comprising 1-4 heteroatoms selected from O, S( O) P , N and NR 12 , and substituted with 0-5 R e ;
• R 12 is H, C1-3 alkyl, or aryl;
• R is H, C1-5 alkyl substituted with 0-5 R e , C2-5 alkenyl substituted with 0-5 R e , C2-5 alkynyl substituted with 0-5 R e , -(CH2)n- C 3-10 carbocyclyl substituted with 0-5 R e , or -(CH2)n-heterocyclyl substituted with 0-5 R e ; or R a and R a together with the nitrogen atom to which they are both attached form a heterocyciyl substituted with 0-5 R e ;
• R b is H, C1-5 alkyl substituted with 0-5 R e , C2-5 alkenyl substituted with 0-5 R e , C2-5 alkynyl substituted with 0-5 R e , -(CH2)n-C3-10carbocyclyl substituted with 0-5 or -(CH 2 ) n -heterocyclyl substituted with 0-5 R e ;
• R c is C1-5 alkyl substituted with 0-5 R e , C2-5 alkenyl substituted with 0-5 R e , C2-5 alkynyl substituted with 0-5 R e , C3-6 carbocyclyl, or heterocyciyl;
• R d is H or C1-4 alkyl
• R f is H, C1-5 alkyl, C3-6 cycloalkyl, or aryl; or R f and R f together with the nitrogen atom to which they are both attached form a heterocyciyl;
• R g is halo, CN, OH, C1-6 alkyl, C3-6 cycloalkyl, or aryl; n is zero, 1, 2, or 3; and p is zero, 1, or 2.
• any instance of a variable substituent including R 1 , R 2 , R 3 , R 4 (R 4a , R 4b ), R 5 , R 6 , R 7 , R 8 , R 9 , R !0 , R 11 , R 12 , R a , R b , R c , R d , R e , R f , and R g can be used independently with the scope of any other instance of a variable substituent.
• the invention includes combinations of the different aspects.
• R 4a is F.
• R 4b is CF3.
• R 1 is absent or halo;
• R 2 is F or -OCH3 ;
• R 1 is absent or halo;
• R 2 is F or -OCH3;
• R 8 is -C(-O)OH, or CF.3
• R a is H , C1-3 alkyl, -(CH2)0-1-C3-6 cycloalkyl, or -(CH 2 )0-1 ⁇ phenyl substituted with 0-2 R e
• R b is H or heterocyclyl
• R e is C1-3 alkyl, -(CH 2 )0-1OR f
• R f is H or C1-3 alkyl.
• R 1 is absent or halo;
• R 2 is-OCH3;
• R 4a is F;
• R 4b is CF3; R 5 is ; R 6 is F; R 8 is -C(-O)OH, or CF 3 ; R 9 is -NHR a , -
• NHC( O)R b .
• R b is H or heterocyclyl;
• R e is C1- 3 alkyl, -(CH 2 )0-1OR f ; and
• R f is II or C1-3 alkyl.
• R 1 is absent or halo;
• R 2 is F or -OCH 3;
• R 4a is F; R 4b is CF3; R 5 is ; R 7 is C1-4 alkyl substituted with
• R 9 is -OH
• R b is H or C1-3 alkyl substituted with 0-4 R e
• R e is - (CH 2 )0-1OR f
• R f is H or C1-3 alkyl.
• Halo includes fluoro, chloro, bromo, and iodo.
• Alkyl or “alkylene” is intended to include both branched and straight-chain saturated aliphatic hydrocarbon groups having the specified number of carbon atoms.
• C1 to C10 alkyl or “C1-10 alkyl” (or alkylene) is intended to include Ci, C2, C3, C4, C5, C6, C7, C89 Cy and C10 alkyl groups.
• C1 to C6 alkyl or "C1-C6 alkyl” denotes alkyl having 1 to 6 carbon atoms.
• Alkyl group can be unsubstituted or substituted with at least one hydrogen being replaced by another chemical group.
• Example alkyl groups include, but are not limited to, methyl (Me), ethyl (Et), propyl (e.g., n-propyl and isopropyl), butyl (e.g., n-butyl, isobutyl, /-butyl), and pentyl (e.g., n-pentyl, isopentyl, neopentyl).
• methyl Me
• Et ethyl
• propyl e.g., n-propyl and isopropyl
• butyl e.g., n-butyl, isobutyl, /-butyl
• pentyl e.g., n-pentyl, isopentyl, neopentyl
• ”C0 alkyl” or “C0 alkylene” it is intended to denote a direct bond.
• Alkyl also includes deuteroalkyl
• alkenyl or “alkenylene” is intended to include hydrocarbon chains of either straight or branched configuration having one or more, preferably one to three, carboncarbon double bonds that may occur in any stable point along the chain.
• C2 to C6 alkenyl or “C2-6 alkenyl” (or alkenylene) is intended to include C2, C3, C4, C5, and C6 alkenyl groups; such as ethenyl, propenyl, butenyl, pentenyl, and hexenyl.
• Alkynyl or “alkynylene” is intended to include hydrocarbon chains of either straight or branched configuration having one or more, preferably one to three, carbon- carbon triple bonds that may occur in any stable point along the chain.
• C2 to Ce alkynyl or “C2-6 alkynyl” (or alkynylene) is intended to include C2, C3, C4, C5, and C6 alkynyl groups; such as ethynyl, propynyl, butynyl, pentynyl, and hexynyl.
• Carbocycle is intended to mean any stable 3-, 4-, 5-, 6-, 7-, or 8-rnernbered monocyclic or bicyclic or 7-, 8-, 9-, 10-, 11-, 12-, or 13 -membered bicyclic or tricyclic hydrocarbon ring, any of which may be saturated, partially unsaturated, unsaturated or aromatic.
• carbocyclyls include, but are not limited to, cyclopropyl, cyclobutyl, cyclobutenyl, cyclopentyl, cyclopentenyl, cyclohexyl, cycloheptenyl, cycloheptyl, cycloheptenyl, adamantyl, cyclooctyl, cyclooctenyl, cyclooctadienyl, [3.3.0Jbicyclooctane, [4.3.0] bicyclononane, [4.4.0]bicyclodecane (decalin), [2.2.2]bicyclooctane, fluorenyl, phenyl, naphthyl, indanyl, adamantyl, anthracenyl, and tetrahydronaphthyl (tetralin).
• bridged rings are also included m the definition of carbocyclyl (e.g,, [2.2.2]bicyclooctane).
• a bridged ring occurs when one or more carbon atoms link two non-adjacent carbon atoms.
• Preferred bridges are one or two carbon atoms. It is noted that a bridge always converts a monocyclic ring into a tricyclic ring. When a ring is bridged, the substituents recited for die ring may also be present on die bridge.
• carbocyclyl When die term “carbocyclyl” is used, it is intended to include “aryl,” “cycloalkyl,” and “spirocycloalkyl.” Preferred carbocyclyls, unless otherwise specified, are cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, phenyl, and indanyl.
• Cycloalkyl is intended to mean cyclized alkyl groups, including mono-, bi- or multicyclic ring systems. "C3 to C7 cycloalkyl” or “C3-7 cycloalkyl” is intended to include C3, C4, C5, C6, a, nd Cz cycloalkyl groups. Non-limiting examples of monocyclic cycloalkyls include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl and cyclooctyl. Non-limiting examples of multicyclic cycloalkyls include 1 -decalinyl, norbomyl and adamantyl.
• “Spirocycloalkyl” is intended to mean hydrocarbon bicyclic ring systems with both rings connected through a single atom.
• the ring can be different in size and nature, or identical in size and nature. Examples include spiropentane, spriohexane, spiroheptane, spirooctane, spirononane, or spirodecane.
• Bicyclic carbocyclyl or "bicyclic carbocyclic group” is intended to mean a stable 9- or 10-membered carbocyclic ring system that contains two fused rings and consists of carbon atoms. Of the two fused rings, one ring is a benzo ring fused to a second ring; and the second ring is a 5- or 6-membered carbon ring which is saturated, partially unsaturated, or unsaturated, fire bicyclic carbocyclic group may be attached to its pendant group at any carbon atom which results in a stable structure.
• the bicyclic carbocyclic group described herein may be substituted on any carbon if the resulting compound is stable. Examples of a bicyclic carbocyclic group are, but not limited to, naphthyl, 1,2-dihydronaphthyl, 1,2,3,4-tetrahydronaphthyl, and indanyl.
• Aryl groups refer to monocyclic or polycyclic aromatic hydrocarbons, including, for example, phenyl, naphthyl, and phenanthranyl. .Aryl moieties are well known and described, for example, in Lewis, R.J., ed., Hawley's Condensed Chemical Dictionary, 13th Edition, John Wiley & Sons, Inc., New York (1997).
• Benzyl is intended to mean a methyl group on which one of the hydrogen atoms is replaced by a phenyl group, wherein said phenyl group may optionally be substituted with 1 to 5 groups, preferably 1 to 3 groups.
• Heterocycle is intended to mean a stable 3-, 4-, 5-, 6-, or 7-membered monocyclic or bicyclic or 7-, 8-, 9-, 10-, 1 1-, 12-, 13-, or 14- membered polycyclic heterocyclic ring that is saturated, partially unsaturated, or folly unsaturated, and that contains carbon atoms and 1, 2, 3 or 4 heteroatoms independently selected from the group consisting of N, O and S; and including any polycyclic group in which any of the above-defined heterocyclic rings is fused to a benzene ring.
• the nitrogen and sulfur heteroatoms may optionally be oxidized (/. ⁇ ?., N— >0 and S(O)p, wherein p is 0, 1 or 2).
• the nitrogen atom may be substituted or unsubstituted (/. ⁇ ?., N or NR wherein R is H or another substituent, if defined).
• the heterocyclic ring may be attached to its pendant group at any heteroatom or carbon atom that results in a stable structure.
• the heterocyclic rings described herein may be substituted on carbon or on a nitrogen atom if the resulting compound is stable.
• a nitrogen in the heterocyclyl may optionally be quaternized.
• heterocyclyl when the total number of S and O atoms in the heterocyclyl exceeds 1, then these heteroatoms are not adjacent to one another. It is preferred that the total number of S and O atoms in the heterocyclyl is not more than 1 . Bridged rings are also included in the definition of heterocyclyl. When the term “heterocyclyl” is used, it is intended to include heteroaryl.
• heterocyclyls include, but are not limited to, acridinyl, azetidinyl, azocinyl, benzimidazolyl, benzofuranyl, benzothiofuranyl, benzothiophenyl, benzoxazolyl, benzoxazolinyl, benzthiazolyl, benztriazolyl, benztetrazolyl, benzisoxazolyl, benzisothiazolyl, benzimidazolinyl, carbazolyl, 4aH-carbazolyl, carbolinyl, chromanyl, chromenyl, cinnolinyl, decahydroquinolinyl, 277,677-1,5,2- dithiazinyl, dihydrofuro[2,3-b]tetoihydrofuran, furanyl, furazanyl, imidazolidinyl, imidazolinyl, imidazolyl, 1/f
• Bicyclic heterocyclyl "bicyclic heterocyclyl” or “ bicyclic heterocyclic group” is intended to mean a stable 9- or 10-membered heterocyclic ring system which contains two fused rings and consists of carbon atoms and 1, 2, 3, or 4 heteroatoms independently selected from the group consisting of N, 0 and S. Of the two fused rings, one ring is a 5- or 6-membered monocyclic aromatic ring comprising a 5-membered heteroaryl ring, a 6- membered heteroary l ring or a benzo ring, each fused to a second ring.
• Hie second ring is a 5- or 6-membered monocyclic ring which is saturated, partially unsaturated, or unsaturated, and comprises a 5-membered heterocyclyl, a 6-membered heterocyclyl or a carbocyclyl (provided the first ring is not benzo when the second ring is a carbocyclyl).
• the bicyclic heterocyclic group may be attached to its pendant group at any heteroatom or carbon atom which results in a stable structure.
• the bicyclic heterocyclic group described herein may be substituted on carbon or on a nitrogen atom if the resulting compound is stable. It is preferred that when the total number of S and O atoms in the heterocyclyl exceeds 1, then these heteroatoms are not adjacent to one another. It is preferred that the total number of S and O atoms in the heterocyclyl is not more than 1.
• bicyclic heterocyclic group examples include quinolinyl, isoquinolinyl, phthalazinyl, quinazolinyl, indolyl, isoindolyl, indolinyl, IH-indazolyl, benzimidazolyl, 1 ,2 ,3 ,4-tetrahydroquinoliny 1 , 1 ,2,3 ,4-tetrahy droisoquinoliny 1, 5 ,6,7, 8- tetrahydroquinolinyl, 2,3-dihydrobenzofuranyl, chromanyl, 1, 2,3,4- tetrahydroquinoxalinyl, and 1 ,2,3,4-tet.rahydroquinazolinyl.
• Heteroaryl is intended to mean stable monocyclic and polycyclic aromatic hydrocarbons that include at least one heteroatom ring member such as sulfur, oxygen, or nitrogen.
• Heteroaryl groups include, without limitation, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, furyl, quinolyl, isoquinolyl, thienyl, imidazolyl, thiazolyl, indolyl, pyrroyl, oxazolyl, benzofuryl, benzothienyl, benzthiazolyl, isoxazolyl, pyrazolyl, tnazolyl, tetrazolyl, indazolyl, 1,2,4-thiadiazolyl, isothiazolyl, purinyl, carbazolyl, benzimidazolyl, indolinyl, benzodioxolanyl, and benzodioxane
• Heteroaryl groups are substituted or unsubstituted.
• the nitrogen atom is substituted or unsubstituted (i.e., N or NR wherein R is H or another substituent, if defined).
• the nitrogen and sulfur heteroatoms may optionally be oxidized (i.e., N— >0 and S(O) P , wherein p is 0, 1 or 2).
• substituted means that at least one hydrogen atom is replaced with a non-hydrogen group, provided that normal valencies are maintained and that the substitution results in a stable compound.
• 2 hydrogens on the atom are replaced.
• Keto substituents are not present on aromatic moieties.
• a ring system e.g., carbocyclic or heterocyclic
• nitrogen atoms e.g., amines
• these may be converted to N-oxides by treatment with an oxidizing agent (e.g. , mCPBA and/or hydrogen peroxides) to afford other compounds of this invention.
• an oxidizing agent e.g. , mCPBA and/or hydrogen peroxides
• shown and claimed nitrogen atoms are considered to cover both the shown nitrogen and its N-oxide (N->0) derivative.
• any variable occurs more than one time in any constituent or formula for a compound, its definition at each occurrence is independent of its definition at every other occurrence.
• Tirus for example, if a group is shown to be substituted with 0-3 R groups, then said group may optionally be substituted with up to three R groups, and at each occurrence R is selected independently from the definition of R. Also, combinations of substituents and/or variables are permissible only if such combinations result in stable compounds.
• the invention includes all pharmaceutically acceptable salt forms of the compounds.
• Pharmaceutically acceptable salts are those in which the counter ions do not contribute significantly to the physiological activity or toxicity of the compounds and as such function as pharmacological equivalents. These salts can be made according to common organic techniques employing commercially available reagents. Some anionic salt forms include acetate, acistrate, besylate, bromide, chloride, citrate, fumarate, glucouronate, hydrobromide, hydrochloride, hydroiodide, iodide, lactate, maleate, mesylate, nitrate, pamoate, phosphate, succinate, sulfate, tartrate, tosylate, and xinofoate.
• Some cationic salt forms include ammonium, aluminum, benzathine, bismuth, calcium, choline, diethylamine, diethanolamine, lithium, magnesium, meglumine, 4-phenylcyclohexylamine, piperazine, potassium, sodium, tromethamine, and zinc.
• a given chemical formula or name shall encompass all stereo and optical isomers and racemates thereof where such isomers exist. Unless otherwise indicated, all chiral (enantiomeric and diastereomeric) and racemic forms are within the scope of the invention. Enantiomers and diastereomers are examples of stereoisomers.
• the term "enantiomer” refers to one of a pair of molecular species that are mirror images of each other and are not superimposable.
• the term “diastereomer” refers to stereoisomers that are not mirror images.
• racemate or “racemic mixture” refers to a composition composed of equimolar quantities of two enantiomeric species, wherein the composition is devoid of optical activity’.
• the invention includes all tautomeric forms of the compounds, atropisomers and rotational isomers.
• R and S represent the configuration of substituents around a chiral carbon atom(s).
• H isomeric descriptors "R” and “S” are used as described herein for indicating atom configuration(s) relative to a core molecule and are intended to be used as defined in the literature (IUPAC Recommendations 1996, Pure and Applied Chemistry, 68:2193-2222 (1996)).
• the term “chiral” refers to the structural characteristic of a molecule that makes it impossible to superimpose it on its mirror image.
• the term “homochiral” refers to a state of enantiomeric purity.
• optical activity refers to the degree to which a homochiral molecule or nonracenuc mixture of chiral molecules rotates a plane of polarized light.
• the invention is intended to include all isotopes of atoms occumng m the compounds. Isotopes include those atoms having the same atomic number but different mass numbers.
• isotopes of hydrogen include deuterium and tritium.
• Isotopes of carbon include 13 C and 14 C.
• Isotopically- labeled compounds of the invention can generally be prepared by conventional techniques known to those skilled in the art or by processes analogous to those described herein, using an appropriate isotopically-labeled reagent in place of the non-labeled reagent otherwise employed. Such compounds may have a variety of potential uses, for example as standards and reagents in determining biological activity. In the case of stable isotopes, such compounds may have the potential to favorably modify biological, pharmacological, or pharmacokinetic properties.
• Optically active foams may be prepared by resolution of racemic forms or by synthesis from optically active starting materials. All processes used to prepare compounds of the present invention and intermediates made therein are considered to be part of the present invention. When enantiomeric or diastereomeric products are prepared, they may be separated by conventional methods, for example, by chromatography or fractional crystallization. Depending on the process conditions the end products of the present invention are obtained either in free (neutral) or salt form. Both the free form and the salts of these end products are within the scope of the invention. If so desired, one form of a compound may be converted into another form.
• a free base or acid may be converted into a salt; a salt may be converted into the free compound or another salt; a mixture of isomeric compounds of the present invention may be separated into the individual isomers.
• Compounds of the present invention, free form and salts thereof, may exist m multiple tautomeric forms, m which hydrogen atoms are transposed to other parts of the molecules and the chemical bonds between the atoms of the molecules are consequently rearranged. It should be understood that all tautomeric forms, insofar as they may exist, are included within the invention.
• stereoisomer refers to isomers of identical constitution that differ in the arrangement of their atoms in space. Enantiomers and diastereomers are examples of stereoisomers.
• enantiomer refers to one of a pair of molecular species that are mirror images of each other and are not superimposable.
• diastereomer refers to stereoisomers that are not mirror images.
• racemate or “racemic mixture” refers to a composition composed of equimolar quantities of two enantiomeric species, wherein the composition is devoid of optical activity.
• Human embryonic kidney cells 2.93 (HEK293) cells and HEK293 cells stably expressing human RXFP1 were cultured in MEM medium supplemented with 10% qualified FBS, and 300 ⁇ g/ml hygromycin (Life Technologies). Cells were dissociated and suspended in assay buffer.
• the assay buffer was HESS buffer (with calcium and magnesium) containing 20 mM HEPES, 0.05% BSA, and 0.5 mM IBMX. Cells (3000 cells per well, except 1500 cell perwell for HEK293 cells stably expressing human RXFP1) were added to 384-well Proxiplates (Perkin-Elmer).
• Ceils were immediately treated with test compounds in DMSO (2% final) at final concentrations in the range of 0.010 nM to 50 ⁇ M. Cells were incubated for 30 min at room temperature. The level of intracellular cAMP was determined using the HTRF HiRange cAMP assay reagent kit (Cisbio) according to manufacturer's instructions. Solutions of cryptate conjugated anti-cAMP and d2 fluorophore-labelled cAMP were made in a supplied lysis buffer separately. Upon completion of the reaction, the cells wore lysed with equal volume of the d2-cAMP solution and anti-cAMP solution.
• time-resolved fluorescence intensity was measured using the Envision (Perkin-Elmer) at 400 nm excitation and dual emission at 590 nm and 665 nm.
• a calibration curve was constructed with an external cAMP standard at concentrations ranging from 2.7 ⁇ M to 0.1 pM by plotting the fluorescent intensity ratio from 665 nm emission to the intensity from the 590 nm emission against cAMP concentrations.
• the potency and activity of a compound to inhibit cAMP production was then determined by fitting to a 4-parametric logistic equation from a plot of cAMP level versus compound concentrations.
• Table 1 lists ECso values in the hRXFPl HEK293 cAMP assay measured for the naphthalene examples.
• the compounds of Formula (I) are RXFP1 receptor agonists and may find use in the treatment of medical indications such as heart failure, fibrotic diseases, and related diseases such as lung disease (e.g., idiopathic pulmonary fibrosis), kidney disease (e.g., chronic kidney disease), or hepatic disease (e.g., non-alcoholic steatohepatitis and portal hypertension).
• fibrotic diseases e.g., idiopathic pulmonary fibrosis
• kidney disease e.g., chronic kidney disease
• hepatic disease e.g., non-alcoholic steatohepatitis and portal hypertension.
• Another aspect ot the invention is a pharmaceutical composition comprising a compound of Formula (I) and a pharmaceutically acceptable carrier.
• Another aspect of the invention is a pharmaceutical composition
• a pharmaceutical composition comprising a compound of Formula (I) for the treatment of a relaxin-associated disorder and a pharmaceutically acceptable carrier.
• Another aspect of the invention is a method of treating a disease associated with relaxin comprising administering an effective amount of a compound of formula (I).
• Another aspect of the invention is a method of treating a cardiovascular disease comprising administering an effective amount of a compound of Formula (I) to a patient in need thereof.
• Another aspect of the invention is a method of treating heart failure comprising administering an effective amount of a compound of Formula (I) to a patient in need thereof.
• Another aspect of the invention is a method of treating fibrosis comprising administering a therapeutically effective amount of a compound of Formula (I) to a patient in need thereof.
• Another aspect of tire invention is a method of treating a disease associated with fibrosis comprising administering a therapeutically effective amount of a compound of Formula (I) to a patient in need thereof.
• Another aspect of the invention is a method of treating or preventing kidney failure, comprising administering a therapeutically effective amount of a compound of Formula (I) to a patient in need thereof.
• Another aspect of the invention is a method of improving, stabilizing or restoring renal function in a patient in need thereof, comprising administering a therapeutically effective amount of a compound of Formula (I) to the patient.
• patient refers to any human or non-human organism that could potentially benefit from treatment with a RXFP1 agonist as understood by practioners in this field.
• exemplary' subjects include human beings of any age with risk factors for cardiovascular disease. Common risk factors include, but are not limited to, age, sex, weight, family history', sleep apnea, alcohol or tobacco use, physical inactivity , arrhythmia, or signs of insulin resistance such as acanthosis nigricans, hypertension, dyslipidemia, or polycystic ovary syndrome (PCOS).
• PCOS polycystic ovary syndrome
• Treating" or “treatment” cover the treatment of a disease-state as understood by practitioners in this field and include the following: (a) inhibiting the disease-state, i.e., arresting it development; (b) relieving the disease-state, i.e., causing regression of the disease state; and/or (c) preventing the disease-state from occurring in a mammal, in particular, when such mammal is predisposed to the disease-state but has not yet been diagnosed as having it.
• Preventing cover the preventive treatment (i.e., prophylaxis and/or ri sk reduction) of a subclinical disease-state aimed at reducing the probability 7 of the occurrence of a clinical disease-state as understood by practitioners in this field.
• Patients are selected for preventative therapy based on factors that are known to increase risk of suffering a clinical disease state compared to the general population.
• "Prophylaxis” therapies can be divided into (a) primary 7 prevention and (b) secondary 7 prevention.
• Primary 7 prevention is defined as treatment in a subject that has not yet presented with a clinical disease state, whereas secondary prevention is defined as preventing a second occurrence of the same or similar clinical disease state.
• “Risk reduction” or “reducing risk” covers therapies that lower the incidence of development of a clinical disease state. As such, primary and secondary prevention therapies are examples of risk reduction.
• “Therapeutically effective amount” is intended to include an amount of a compound of the present invention that is effective when administered alone or in combination with other agents to treat disorders as understood by practitioners in this field. When applied to a combination, the term refers to combined amounts of the active ingredients that result in the preventive or therapeutic effect, whether administered in combination, serially, or simultaneously.
• “Disorders of the cardiovascular system” or “cardiovascular disorders” include for example the following disorders: hypertension (high blood pressure), peripheral and cardiac vascular disorders, coronary 7 heart disease, stable and unstable angina pectoris, heart attack, myocardial insufficiency, abnormal heart rhythms (or arrhythmias), persistent ischemic dysfunction ("hibernating myocardium”), temporary postischemic dysfunction ("stunned myocardium”), heart failure, disturbances of peripheral blood flow, acute coronary syndrome, heart failure, heart muscle disease (cardiomyopathy), myocardial infarction and vascular disease (blood vessel disease).
• Heart failure includes both acute and chronic manifestations of heart failure, as well as more specific or related types of disease, such as advanced heart failure, postacute heart failure, cardio-renal syndrome, heart failure with impaired kidney function, chronic heart failure, chronic heart failure with mid-range ejection fraction (HFmEF), compensated heart failure, decompensated heart failure, right heart failure, left heart failure, global failure, ischemic cardiomyopathy, dilated cardiomyopathy, heart failure associated with congenital heart defects, heart valve defects, heart failure associated with heart valve defects, mitral stenosis, mitral insufficiency, aortic stenosis, aortic insufficiency, tricuspid stenosis, tricuspid insufficiency, pulmonary stenosis, pulmonary' valve insufficiency, heart failure associated with combined heart valve defects, myocardial inflammation (myocarditis), chronic myocarditis, acute myocarditis, viral myocarditis, diabetic heart failure, alcoholic heart failure
• Fibrotic disorders encompasses diseases and disorders characterized by fibrosis, including among others the following diseases and disorders: hepatic fibrosis, cirrhosis of tlie liver, NASH, pulmonary; fibrosis or lung fibrosis, cardiac fibrosis, endomyocardial fibrosis, nephropathy, glomerulonephritis, interstitial renal fibrosis, fibrotic damage resulting from diabetes, bone marrow fibrosis and similar fibrotic disorders, scleroderma, morphea, keloids, hypertrophic scarring (also following surgical procedures), naevi, diabetic retinopathy, proliferative vitreoretinopathy and disorders of the connective tissue (for example sarcoidosis).
• diseases and disorders including among others the following diseases and disorders: hepatic fibrosis, cirrhosis of tlie liver, NASH, pulmonary; fibrosis or lung fibrosis, cardiac fibrosis, end
• Relaxin-associated disorders include but are not limited to disorders of the cardiovascular system and fibrotic disorders.
• the compounds of this invention can be administered by any suitable means, for example, orally, such as tablets, capsules (each of which includes sustained release or timed release formulations), pills, powders, granules, elixirs, tinctures, suspensions (including nanosuspensions, microsuspensions, spray-dried dispersions), syrups, and emulsions; sublingually; bucally; parenterally, such as by subcutaneous, intravenous, intramuscular, or mtrastemal injection, or infusion techniques (e.g., as sterile injectable aqueous or non-aqueous solutions or suspensions); nasally, including administration to the nasal membranes, such as by inhalation spray; topically, such as in the form of a cream or ointment; or rectally such as in the form of suppositories. They can be administered alone, but generally will be administered with a pharmaceutical carrier selected on the basis of the chosen route of administration and standard pharmaceutical practice.
• “Pharmaceutical composition” means a composition comprising a compound of the invention in combination with at least one additional pharmaceutically acceptable carrier.
• a “pharmaceutically acceptable carrier” refers to media generally accepted in the art for the delivery’ of biologically active agents to animals, in particular, mammals, including, i.e., adjuvant, excipient or vehicle, such as diluents, preserving agents, fillers, flow' regulating agents, disintegrating agents, weting agents, emulsifying agents, suspending agents, sweetening agents, flavoring agents, perfuming agents, anti-bacterial agents, anti-fungal agents, lubricating agents and dispensing agents, depending on the nature of the mode of administration and dosage forms.
• Pharmaceutically acceptable carriers are formulated according to a number of factors well within the purview of those of ordinary' skill in the art. These include, without limitation: the type and nature of the active agent being formulated; the subject to which tlie agent-containing composition is to be administered; the intended route of administration of the composition; and the therapeutic indication being targeted. Pharmaceutically acceptable carriers include both aqueous and non-aqueous liquid media, as well as a variety of solid and semi-solid dosage forms. Such carriers can include a number of different ingredients and additives in addition to the active agent, such additional ingredients being included in the formulation for a variety of reasons, e.g., stabilization of the active agent, binders, etc., -well known to those of ordinary' skill in the art.
• the dosage regimen for the compounds of the present invention will, of course, vary' depending upon known factors, such as the pharmacodynamic characteristics of the particular agent and its mode and route of administration; the species, age, sex, health, medical condition, and weight of the recipient; the nature and extent of the symptoms; the kind of concurrent treatment; the frequency of treatment; the route of administration, the renal and hepatic function of the patient, and the effect desired.
• the daily oral dosage of each active ingredient when used for the indicated effects, will range between about 0.01 to about 5000 mg per day, preferably between about 0.1 to about 1000 mg per day, and most preferably between about 0.1 to about 250 mg per day.
• the most preferred doses will range from about 0.01 to about 10 mg/kg/minute during a constant rate infusion.
• Compounds of this invention may be administered in a single daily dose, or the total daily dosage may be administered in divided doses of two, three, or four times daily.
• Tire compounds are typically administered in admixture with suitable pharmaceutical diluents, excipients, or carriers (collectively referred to herein as pharmaceutical carriers) suitably selected with respect to the intended form of administration, e.g, oral tablets, capsules, elixirs, and syrups, and consistent with conventional pharmaceutical practices.
• suitable pharmaceutical diluents, excipients, or carriers suitably selected with respect to the intended form of administration, e.g, oral tablets, capsules, elixirs, and syrups, and consistent with conventional pharmaceutical practices.
• Dosage forms may contain from about 1 milligram to about 2000 milligrams of active ingredient per dosage unit.
• the active ingredient will ordinarily be present in an amo unt of about 0.1-95% by weight based on the total w eight of the composition
• a typical capsule for oral administration contains at least one of the compounds of the present invention (250 mg), lactose (75 mg), and magnesium stearate (15 mg), fire mixture is passed through a 60 mesh sieve and packed into a No. 1 gelatin capsule.
• a typical injectable preparation is produced by aseptically placing at least one of the compounds of the present invention (250 mg) into a vial, aseptically freeze-drying and sealing.
• the contents of the vial are mixed with 2 mL of physiological saline, to produce an injectable preparation.
• the compounds may be employed m combination with other suitable therapeutic agents useful in the treatment of diseases or disorders including: anti-atherosclerotic agents, anti-dyslipidemic agents, anti-diabetic agents, anti -hyperglycemic agents, anti-hyperinsulinemic agents, anti-thrombotic agents, anti-retinopathic agents, anti-neuropathic agents, anti-nephropathic agents, anti-ischemic agents, anti-hypertensive agents, anti-obesity agents, anti-hyperlipidemic agents, anti-hypertriglyceridemic agents, anti-hypercholesterolemic agents, anti-restenotic agents, anti -pancreatic agents, lipid lowering agents, anorectic agents, memory enhancing agents, anti-dementia agents, cognition promoting agents, appetite suppressants, agents for treating heart failure, agents for treating peripheral arterial disease, agents for treating malignant
• the additional therapeutic agents may include ACE inhibitors, p-blockers, diuretics, mineralocorticoid receptor antagonists, ryanodine receptor modulators, SERCA2a activators, renin inhibitors, calcium channel blockers, adenosine A 1 receptor agonists, partial adenosine Al receptor, dopamine p-hydroxylase inhibitors, angiotensin II receptor antagonists, angiotensin II receptor antagonists with biased agonism for select cell signaling pathways, combinations of angiotensin II receptor antagonists and neprily sin enzyme inhibitors, neprilysin enzyme inhibitors, soluble guanylate cyclase activators, myosin ATPase activators, rho-kinase 1 inhibitors, rho-kinase 2 inhibitors, apelin receptor agonists, nitroxyl donating compounds, calcium-dependent kinase II inhibitors, antifibrotic agents, galectin-3 inhibitors, vasopressin
• the additional therapeutic agents may also include nintedanib, Pirfenidone, LPA1 antagonists, LPA1 receptor antagonists, GLP1 analogs, tralokinumab (IL-13, AstraZeneca), vismodegib (hedgehog antagonist, Roche), PRM-151 (pentraxin-2, TGF beta-1, Promedior), SAR-156597 (bispecific Mab IL-4&IL-13, Sanofi), pumpuzumab ((anti-lysyl oxidase-like 2 (anti-LOXL2) antibody, Gilead), CKD-942, PTL-202 (PDE mh./pentoxifylline/NAC oral control, release.
• nintedanib Pirfenidone
• LPA1 antagonists LPA1 receptor antagonists
• GLP1 analogs GLP1 analogs
• tralokinumab IL-13, AstraZeneca
• vismodegib hedgehog antagonist, Roche
• omipalisib oral PI3K/mT0R inhibitor, GSK
• IW-001 oral sol. bovine type V collagen mod.. Immune Works
• STX-100 integrated alpha V/ beta-6 ant, Stromedix/ Biogen
• Actimmune IFN gamma
• PC-SOD midismase; inhaled, LTT Bio-Pharma / CKD Phann
• lebrikizumab anti-IL-13 SC humanized mAb, Roche
• AQX-1125 SHIP1 activator, Aquinox), CC-539 (INK inhibitor, Celgene), FG-3019 (FibroGen), SAR-100842 (Sanofi), and obeticholic acid (OCA or INT-747, Intercept).
• one active ingredient may be enteric coated.
• enteric coating one of the active ingredients it is possible not only to minimize the contact between the combined active ingredients, but also, it is possible to control the release of one of these components in the gastrointestinal tract such that one of these components is not released in the stomach but rather is released in the intestines.
• One of the active ingredients may also be coated with a material that affects a sustained-release throughout the gastrointestinal tract and also serves to minimize physical contact betw een the combined active ingredients.
• the sustained-released component can be additionally enteric coated such that the release of this component occurs only in the intestine.
• Still another approach would involve the formulation of a combination product in which the one component is coated with a sustained and/or enteric release polymer, and the other component is also coated with a polymer such as a low viscosity grade of hydroxypropyl methylcellulose (HPMC) or other appropriate materials as known in the art, in order to further separate the active components.
• HPMC hydroxypropyl methylcellulose
• the polymer coating serves to form an additional barrier to interaction with tire other component.
• the compounds of the present invention are also useful as standard or reference compounds, for example as a quality standard or control, in tests or assays involving RXFP1 .
• Such compounds may be provided in a commercial kit, for example, for use in pharmaceutical research involving RXFP1.
• a compound of the present invention could be used as a reference in an assay to compare its known activity to a compound with an unknown activity. This would ensure the experimenter that the assay was being performed properly and provide a basis for comparison, especially if the test compound was a derivative of the reference compound.
• compounds according to the present invention could be used to test their effectiveness. Hie compounds of the present invention may also be used in diagnostic assays involving RXFP 1.
• the present invention also encompasses an article of manufacture.
• article of manufacture is intended to include, but not be limited to, kits and packages.
• the article of manufacture of the present invention comprises: (a) a first container; (b) a pharmaceutical composition located within the first container, wherein the composition, comprises a first therapeutic agent, comprising a compound of the present invention or a pharmaceutically acceptable salt form thereof; and, (c) a package insert stating that the pharmaceutical composition can be used for the treatment of dyslipidemias and the sequelae thereof.
• the package insert states that the pharmaceutical composition can be used in combination (as defined previously) with a second therapeutic agent for the treatment of dyslipidemias and the sequelae thereof.
• Hie article of manufacture can further comprise: (d) a second container, wherein components (a) and (b) are located within the second container and component (c) is located within or outside of the second container.
• Located within the first and second containers means that the respective container holds the item within its boundaries.
• the first container is a receptacle used to hold a pharmaceutical composition. This container can be for manufacturing, storing, shipping, and/or individual/bulk selling.
• First container is intended to cover a bottle, jar, vial, flask, syringe, tube (e.g., for a cream preparation), or any other container used to manufacture, hold, store, or distribute a pharmaceutical product.
• the second container is one used to hold tire first container and, optionally , the package insert.
• the second container include, but are not limited to, boxes (e.g. , cardboard or plastic), crates, cartons, bags (e.g. , paper or plastic bags), pouches, and sacks.
• the package insert can be physically atached to the outside of the first container via tape, glue, staple, or another method of attachment, or it can rest inside the second container without any physical means of attachment to the first container.
• the package insert is located on the outside of the second container. When located on the outside of the second container, it is preferable that the package insert is phy sically attached via tape, glue, staple, or another method of attachment. Alternatively, it can be adjacent to or touching the outside of the second container without being physically attached.
• the package insert is a label, tag, marker, etc. that recites information relating to the pharmaceutical composition located within the first container.
• the information recited will usually be determined by the regulatory agency governing the area in which the article of manufacture is to be sold (e.g., the United States Food and Drug Administration).
• the package insert specifically recites the indications for which the pharmaceutical composition has been approved.
• the package insert may be made of any material on which a person can read information contained therein or thereon.
• the package insert is a printable material (e.g., paper, plastic, cardboard, foil, adhesive-backed paper or plastic, etc.) on which the desired information has been formed (e.g., printed or applied).
• the compounds of this invention can be made by various methods known in the art including those of the following schemes and in the specific embodiments section.
• the structure numbering and variable numbering shown in the synthetic schemes are distinct from, and should not be confused with, the structure or variable numbering in the claims or the rest of the specification.
• the variables in the schemes are meant only to illustrate how to make some of the compounds of this invention.
• Naphthalene compounds of this invention can be accessed from commercially available methyl 3-amino-2 -naphthoate or can be accessed via that shown in scheme- 1.
• V can be converted to amides of this invention I- VI and I- VII by coupling with an appropriate amine or aniline.
• H NMR spectra were obtained with Broker or JEOL® Fourier transform spectrometers operating at frequencies as follows: 1H NMR: 400 MHz (Broker or JEOL®) or 500 MHz (Broker or JEOL®). Spectra data are reported in the format: chemical shift (multiplicity, coupling constants, number of hydrogens).
• Intermediate 2-6 was prepared from intermediate 2-4, employing 5- borono-2-methoxybenzoic acid 2-5 using similar conditions to those described for intermediate 1-1 .
• Solvent A 10% ACN - 90% H2O- 0.1% TFA
• Preparative chromatographic conditions Instrument: Berger MG II; Column: Chiralpak ID, 21 x 250 mm, 5 micron; Mobile phase: 20 % MeOH / 80 % CO2; Flow conditions; 45 mL/min, 120 Bar, 40 °C; Detector wavelength: 209 nm; Injection details: 49 injections in MeOH.
• Intermediate 4-4 was separated into individual enantiomers using chiral SFC.
• Preparative chromatographic conditions Instrument: Berger MG II; Column: Kromasil 5-CelluCoat, 21 x 250 mm, 5 micron; Mobile phase: 15 % IPA-ACN (0.1 % DEA) / 85 % CO2; Flow conditions; 45 mL/min, 120 Bar, 40 °C; Detector wavelength: 220 nm; Injection details: 0.4 mL of -15 mg/mL in ACN-IPA (1: 1). Peak 2 was collected to afford intermediate 4-4.
• An1lytical chromatographic conditions Instrument: Aurora Infinity Analytical SFC; Column: Kromasil 5-CelluCoat, 4.6 x 250 mm, 5 micron;
• Analytical RT 13.53 min
• chiral 5-6 Peak-4, > 99 % ee
• Analytical RT 16.67 min
• Analytical Chromatographic Conditions Instrument: Agilent SFC (LVL-L4021 Lab), Column: IC 250 X 4.6 mm ID, 5 ⁇ m, Temperature: Ambient, Flow rate: 2.0 mL/min, Mobile Phase: gradient 75/25 COr/MeOH 12 min then to 45 % MeOH.
• Analytical chromatographic conditions Instrument: Shimadzu Nexera SFC; Column: Chiralpak AD-H, 4.6 x 100 mm, 3 micron; Mobile phase: 15 % MeOH / 85 % CO2; Flow conditions: 2.0 mL/min, 150 Bar, 40°C; Detector wavelength: 220 nm; Injection details: 5 pL of --Img/rnL in MeOH.
• Benzoic acid intermediate 6-4 Preparation of 5-(5-(hydroxymethyl)-3a,5 ,6,6a- tetrahydro ⁇ 4H-cyclopenta[7]isoxazol-3 ⁇ yl)-2 -methoxybenzoic acid.
• Intermediate 6-4 (100 mg, 78 % yield) was prepared in a similar manner as intermediate 6-2 with the hydrolysis of intermediate 6-3.
• Benzoic acid intermediate 6-6 Preparation of 5-(5-(hydroxymethyl)-3a,5,6,6a- tetrahydro-4H -cyclopenta[7Jisoxazol-3-yl)-2-methoxybenzoic acid.
• Intermediate 6-6 (2.0.2 mg, 92 % yield) was prepared in a similar manner as intermediate 6-2 with the hydrolysis of intermediate 6-5.
• Benzoic acid intermediate 6-8 Preparation of 5-(5-(hydroxymethyl)-3a,5,6,6a- tetrahydro-4H -cyclopenta[d jisoxazol-3-yl)-2.-niethoxybenzoic acid.
• Intermediate 6-8 (120 mg, 85 % yield) was prepared in a similar manner as intermediate 6-2 with the hydrolysis of intermediate 6-7.
• POC l3 (0.25 mL, 2.7 mmol) was added to a solution of 3-amino-2 -naphthoic acid (0.5 g, 3 mmol), 4-fluoro-3-(trifluoromethyl)aniline (0.96 g, 5.3 mmol), and pyridine (0.65 mL, 8.0 mmol) m DCM (26.7 ml) at 0 °C.
• reaction mixture was quenched by the addition of MeOH ( ⁇ 1 mL), and the solution extracted from phosphate buffer with EtOAc (2 x 25 mL), The combined organic postions were concentrated under reduced pressure and purified by silica gel chromatography using hex/ethylacetate as eluants to afford intermediate 12-1 (chiral) (2.59 g, 9.48 mmol, 75 % yield, 99 % ee).
• Intermediate 14-2 Preparation of methyl 5-((3-hydroxypropyl)sulfonyl)“2- methoxybenzoate.
• Intermediate 14-1 was treated with 3 -bromopropan- l-ol (310 ⁇ l, 3.42 mmol). After stirring for 14h, the reaction mixture was washed with brine (10 mL) and purified by normal phase chromatography by eluting with hexanes/EtOAc to give intermediate 14-2 (150 mg, 76 % yield).
• Example 1 was prepared by adding intermediate 7-1 (50 mg, 0.14 mmol) to ACN (5.7 mL) followed by DIPEA (0.58 mL, 3.3 mmol) and intermediate 1-1 (50 mg, 0.14 mmol) and HATU (66 mg, 0,17 mmol). After 14 h, the reaction mixture was partitioned between water and EtOAc (25 mL). The organic layer was washed with water, IM HC1 solution, brine, dried over sodium sulfate, filtered, and concentrated under reduced pressure. The residue was dissolved in DCM (5 mL) and treated with TFA (1 mL).
• Example 2 was prepared by dissolving Intermediate 18-1 (13 nig, 0.016 mmol) in EtOAc (2 mL) and treating with HC1 in dioxane (4N, 3 mL). After 2 h, the reaction mixture was concentrated under reduced pressure to give the amine HO salt intermediate. The solid was re-dissolved in DCM (1mL) and to this solution was added tetrahydro-2H -pyran-4- carbonyl chloride (2.4 mg, 0.016 mmol) followed by DIEA (0.05ml). After 1 h, the solution was concentrated under reduced pressure, re-dissolved in DCM ( 1 mL), and to this was added TFA (1 mL).
• Example 5 (0.6 mg, 0.7 nmol, 2 % yield) was prepared from intermediate 7-1 (10 mg, 0.029 mmol), intermediate 12-3 (12.67 mg, 0.029 mmol), and 1 -methyl -1H -imidazole (2.36 mg, 0.029 mmol) in ACN (1 mL), followed by TCFH (8.06 mg, 0.029 mmol).
• Example 8 (10 mg, 1.4 umol, 27 % yield) was prepared in a similar manner as example 5 replacing intermediate 12-3 with intermediate 13-5 and subsequent hydrolysis of the 8- butyl ester with TFA/DCM.
• Example 9 (2.8 mg, 0.004 mmol, 32 % yield) was prepared in a similar manner as Example 5 replacing intermediate 12-3 with intermediate 14-3.
• Example 11 3-(5-(1,1-dioxidoisothiazolidin-2-yI)-2-methoxybenzamido)-A , -(4-fluoro-3- (trifluoromethyl)-phenyl)-2-naphthamide.
• Example 11 (4 mg, 6 pmol, 10 % yield) was prepared in a manner similar to Example 5 from intermediate 16-2.
• Example 12 (5.6 mg, 10 ⁇ mol, 68 % yield) was prepared in a manner similar to Example 5 from intermediate 11-2.
• 1HNMR 500 MHz, DMSO-d6) 5 11.60 (s, 1H), 11.14 (s, 1H), 9.05 (s, 1H), 8.46 - 8.43 (m, 1H), 8.40 - 8.37 (m, 1H), 8.23 (d, >2.7 Hz, 1H), 8.14 - 8.06 (m, 2H), 8.06 - 8.00 (m, 1H), 7.95 (d, >8.2 Hz, 1H), 7.81 - 7.75 (m, 1H), 7.67 - 7.54 (m, 3H), 7.50 (dd, >9.5, 3.7 Hz, 1H), 7.39 - 7.33 (m, 1H), 7.09 (dd, >9.5, 1.2 Hz, 1H), 4.07 (s, 3H).
• Example 13 7V-(4-fluoro-3-(trifluoromethyl)phenyl)-3-(5-(5-(hydroxymethyl)-3a,5,6,6a- tetrahydro-4H -cyclopenta[d ]isoxazol-3-yl)-2-methoxybenzamido)-2-naphthamide. (homochiral, Peak 4)
• Example 13 (6.2 mg, 0.009 mmol, 32 % yield) was prepared in a manner similar to Example 5 from intermediate 6-10.
• Example 14 (6.6 mg, 0.01 mmol, 25 % yield) was prepared in a manner sim ilar to
• Example 15 (5.5 mg, 9.05 ⁇ mol, 21 % yield) was prepared in a manner similar to Example 5 from intermediate 5-3.
• Example 16 (8.4 mg, 0.013 mmol, 32 % yield) was prepared in a manner similar to Example 5 from intermediate 5-6.

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