CA3208507A1 - Tyk2 inhibitors and uses thereof - Google Patents

Abstract

Described herein are compounds that are TYK2 inhibitors, methods of making such compounds, pharmaceutical compositions and medicaments comprising such compounds, and methods of using such compounds in the treatment of conditions, diseases, or disorders that would benefit from modulation of TYK2 activity.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS
100011 This application claims the benefit of US Provisional Application No.
63/151,287 filed on February 19, 2021 and US Provisional Application No. 63/193,514 filed on May 26, 2021, each of which is incorporated herein by reference in its entirety.
BACKGROUND OF THE INVENTION

[0002] The present invention relates to compounds that bind to the pseudokinase domain (JH2) of the non-receptor tyrosine-protein kinase 2 (TYK2). Compounds of the present disclosure may inhibit certain cytokine signaling, for example IL-12, IL-23, and IFNct signaling Additional aspects of the invention include pharmaceutical compositions comprising the compounds described herein, methods of using the compounds to treat certain diseases, and intermediates and processes useful in the synthesis of the compounds.

[0003] TYK2 is a non-receptor tyrosine kinase member of the Janus kinase (JAKs) family of protein kinases. The mammalian JAK family consists of four members, TYK2, JAK1, JAK2, and JAK3. JAK proteins, including TYK2, are integral to cytokine signaling.
TYK2 associates with the cytoplasmic domain of type I and type II cytokine receptors, as well as interferon types I and III receptors, and is activated by those receptors upon cytokine binding. Cytokines implicated in TYK2 activation include interferons (e.g. IFN-a, IFN-I3, IFN-K, IFN-6, IFN-e, IFN-T, IFN-co, and IFN-c (also known as limitin), and interleukins (e.g. IL-4, IL-6, IL-10, IL-1 1, IL-12, IL-13, IL-22, IL-23, IL-27, LL-31, oncostatin M, ciliary neurotrophic factor, cardiotrophin 1, cardiotrophin-like cytokine, and LIF). The activated TYK2 then goes on to phosphorylate further signaling proteins such as members of the STAT family, including STAT1, STAT2, STAT4, and STAT6.
SUMMARY OF THE INVENTION

[0004] Compounds described herein are modulators of the JAK family of kinases.
More specifically, the compounds of the present disclosure are inhibitors of TYK2.
In some embodiments, compounds are selective for TYK2 over other JAKs. For example, compounds may bind specifically to the pscudokinasc domain (JH2) of TYK2 thereby enhancing selectivity over JAK family members. In some embodiments, a compound of the present disclosure may be an all osteric modulator or noncompetitive inhibitor of TYK2. In additional embodiments, a compound described herein may be useful in the treatment of TYK2 mediated diseases or disorders.
100051 In one aspect, described herein is a compound of Formula (1):

W, R4 CSR
N B2- N rt n IR7)"} Z X3 Al X2 CA): Xi A
(R8)p Formula (I), or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
Ring A is an unsubstituted or substituted 6-membered heterocyclic ring wherein A1 and A2 are independently N or C, wherein if Ring A is substituted then Ring A is substituted with p instances of R8;
each R8 is independently hydrogen, halogen, unsubstituted or substituted Cl-C6 alkyl, unsubstituted or substituted Cl-C6 deuteroalkyl, unsubstituted or substituted C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Ci-C6 fluoroalkyl, unsubstituted or substituted C1-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -OR'', -C(=0)R16, -CO2R16, -C(=0)N(R16)2, -N(R16)2, -NR16C(=0)R', _sR16, _s(_0)R17, -SO2R17, or -SO2N(R16)2; wherein if R8 is attached to a nitrogen atom, then R8 is hydrogen, unsubstituted or substituted CI-C6 alkyl, unsubstituted or substituted Cl-C6 deuteroalkyl, unsubstituted or substituted C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Ci-C 6 fluoroalkyl, unsubstituted or substituted Ci-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -C(=0)R16, -CO2R16, -C(=0)N(R16)2, -S(=0)R17, -SO2R17, or -SO2N(R16)2, or two R8 attached to the same carbon atom are taken together to form =0, =S, or =NH;
Z is -NR' -, -0-, -S-, -S(=0)-, or -SO2-;
¨
_K is hydrogen, C1-C6 alkyl, C1-C6 deuteroalkyl, CI-Co fluoroalkyl, C3-C6 cycloalkyl, or monocyclic heterocycle;
X1, X2, and X' are each independently CR11 or N;
each R11 is independently hydrogen, halogen, unsubstituted or substituted Cl-alkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Cl-C6 fluoroalkyl, unsubstituted or substituted Ci-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -0R17, -C(=0)R16, -CO2R16, -CI=011\T(R16)2, -N(R16)2, _NRI6c(_0)R17, _SR16, -S(=0)R1', -SO2R17, or -SO2N(R16)2;
B1 is N or CR12a;
B2 is N or CR12b;
R12 and R12b are each independently hydrogen, halogen, unsubstituted or substituted Cl-C6 alkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Ci-C 6 tluoroalkyl, unsubstituted or substituted Ci-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -0R17, -C(=0)R16, -CO2R16, -C(=0)N(R16)2, -1,f(R16)2, "NR16c(_c)Rt7, -SR16, -S(=0)R17, -SO2R17, or -SO2N(R16)2;
R1 is hydrogen, Ci-C6 alkyl, or Cl-C6 fluoroalkyl;
R2 is a Ring B that is an unsubstituted or substituted heterocycle or unsubstituted or substituted carbocycle, wherein if Ring B is substituted then Ring B is substituted with q instances of R13;
each R13 is independently halogen, unsubstituted or substituted Ci-C6 alkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, un substituted or substituted Ci-C6 fluoroalkyl, unsubstituted or substituted Ci-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -OR'', -C(=0)R16, -CO2R16, -C(=0)N(R16)2, -/.õ1-(R16)2, _NR16c(_0)R17, _sR16, _s(_0)R17, 3021..17, or -SO2N(R16)2;
or two R1.1 groups on adjacent atoms of Ring B are taken together with the intervening atoms to which they are attached to form an unsubstituted or substituted 5- or 6-membered monocyclic carbocycle or an unsubstituted or substituted 5- or 6-membered monocyclic heterocycle;
or R2 is -C(=0)R14, _c(=o)N-Ri4R15, or R14 is hydrogen, unsubstituted or substituted Ci-C6 alkyl, C,-C6 deuteroalkyl, unsubstituted or substituted C7-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Ci-C6 hetcroalkyl, unsubstituted or substituted monocyclic carbocycle, unsubstituted or substituted bicyclic carbocycle, unsubstituted or substituted monocyclic heterocycle, or unsubstituted or substituted bicyclic heterocycle;
R15 is hydrogen, Ci-C6 alkyl, or Ci-C6 fluoroalkyl;

or R14 and R15 are taken together with the intervening atoms to which they are attached to form an unsubstituted or substituted 4- to 6-membered monocyclic heterocycle;
or R1 and R15 are taken together with the intervening atoms to which they are attached to form an unsubstituted or substituted 5- or 6-membered monocyclic heterocycle;
W is -NR3- or -0-;
R3 is hydrogen, C1-C6 alkyl, Ci-C6 deuteroalkyl, CI-Co fluoroalkyl, C3-C6 cycloalkyl, or monocyclic heterocycle;
R4 is hydrogen, Ci-C6 alkyl, Cl-Co deuteroalkyl, Cl-Co fluoroalkyl, C3-C6 cycloalkyl, or monocyclic heterocycle;
or R3 and R4 are taken together with the N atom to which they are attached to form a substituted or unsubstituted N-containing heterocycle;
or R3 and Rua are taken together with the intervening atoms to which they are attached to form a substituted or unsubstituted 5- or 6-membered heterocycle;
R5 is hydrogen, Ci-C6 alkyl, C,-C6 fluoroalkyl, C3-C6 cycloalkyl, or monocyclic heterocycle;
each Re' and R7 is independently hydrogen, deuterium, halogen, Cl-C6 alkyl, Ct-deuteroalkyl, C1-C6 fluoroalkyl, C3-C6 cycloalkyl, or monocyclic heterocycle, -CN, -OH, -0R17, -C(=0)R16, -CO2R16, -C(=0)N(R16)2, -1..õ,f(R16)2, _N-Ri6c(=o)R17, _sR16, _ S(=0)R17, -SO2R17, or -SO2N(R16)2;
or one R6 and one R7 attached to the same carbon atom are taken together with the carbon atom to which they are attached to form C=0 or C3-C4 cycloalkyl;
each R16 is independently hydrogen, substituted or unsubstituted Ci-C6 alkyl, substituted or unsubstituted CI-Co fluoroalkyl, substituted or unsubstituted CI-Co heteroalkyl, substituted or unsubstituted C3-C7 cycloalkyl, substituted or unsubstituted monocyclic 3- to 8-membered heterocycloalkyl, substituted or unsubstituted phenyl, or substituted or unsubstituted monocyclic heteroaryl;
or two R16 on the same 1\ atom are taken together with the N atom to which they are attached to form a substituted or unsubstitutcd N-containing heterocycle; and each R17 is independently substituted or unsubstituted Ci-C6 alkyl, substituted or unsubstituted CI-C6 fluoroalkyl, substituted or unsubstituted Cl-C6 heteroalkyl, substituted or unsubstituted C3-C7 cycloalkyl, substituted or unsubstituted monocyclic 3- to 8-membered heterocycloalkyl, substituted or unsubstituted phenyl, or substituted or unsubstituted monocyclic heteroaryl;

wherein each substituted alkyl, substituted fluoroalkyl, substituted deuteroalkyl, substituted alkoxy, substituted fluoroalkoxy, substituted heteroalkyl, substituted carbocycle, and substituted heterocycle is substituted with one or more Rs groups independently selected from the group consisting of deuterium. halogen, Ci-C6 alkyl, monocyclic carbocycle, monocyclic heterocycle, -CN, -0R18, -CH2OR18, -CO2R18, -CH2CO2R", -C(=0)N(R18)2, -CH2C(=0)N(R18)2, -N(R18)2, -CH2N(R18)2, -NR' 8C(=0)R' -CH2NR1 8C(=0)R1 -NR' SO2R19, -CH2NR1 8S02R19, -CH2SR18, -S(=0)R19, -CH2S(=0)R19, -S02R19, -CH2S02R19, -SO2N(R18)2, or -CH2S02N(R18)2;
each R18 is independently selected from hydrogen, C1-Co alkyl, C1-C6 fluoroalkyl, Cl-C6 heteroalkyl, C3-C6 cycloalkyl, C2-C6 heterocycloalkyl, phenyl, benzyl, 5-membered heteroaryl and 6-membered heteroaryl;
or two R" groups are taken together with the N atom to which they are attached to form a N-containing heterocycle;
each R19 is independently selected from CI-C6 alkyl, CI-Co heteroalkyl, C3-C6 cycloalkyl, C2-C6 heterocycloalkyl, phenyl, benzyl, 5-membered heteroaryl, and 6-membered heteroaryl;
n is 1, 2, or 3;
p is 0, 1, 2, 3, or 4; and q is 0, 1, 2, 3, or 4.
100061 In some embodiments, the compound is a compound of Formula (II):

'NH

4:)X
HN 13: NH

n R7V Z r-LX3 R2 Al `, X2 A0: X1 (R8)p Formula (II), or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[0007] In some embodiments, the compound is a compound of Formula (IV):

-NH

HN B2-'L-NH
R;õ). z ( R7 Al lieh (R8)p Formula (IV), or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[0008] In some embodiments, the compound is a compound of Formula (VI).
R4,N H
, HN N H
( R;) z A9Al, 14111 -ik-AT
Formula (VI), or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
(i) A' and A2 are each C; and A6, A7, A8, and A9 are each independently CR8 or N;
(ii) A" is N; A2 is C; A6, A7, and A8 are each independently CR8 or N; and A9 is C(=0);
(iii) A" is C; A2 is N; A6 is C(=0); and A7, A8, and A9 are each independently CR8 or N;
or (iv) Al and A2 are each C; one of A6, A7, A8, and A9 is NR8, wherein A6, A7, A8, or A9 adjacent to the Nit' is C(=0) and the remaining members of A6, A7, A8, and A9 are each independently CR8 or N.
100091 In some embodiments, the compound is a compound of Formula (VIa):
R4, NH
N
I

/ R6 dõ
r, 1:t7 Z
R8) Formula (VIa), or a pharmaceutically acceptable salt, tautomer, or solvate thereof; wherein A' is Cle or N.
[0010] In some embodiments, the compound is a compound of Formula (VIb) or Formula (Vic):
R4, NH WINN

H B2-1' NH HN B2 NH

R2 ( z kR7 n R
(R8) (R8) p N N
Formula (VIb) Formula (Vic) or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[0011] In some embodiments, the compound is a compound of Formula (VIII):

'NH

HN
( R6 7 Nr-LI
Al j411134 A9 -'A2 Formula (VIII) or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
V is N, CH, or CR13;
q is 1, 2, 3, 0r4;
Al and A2 are each C; and A', A', A', and A' are each independently Cle or N.
[0012] In some embodiments, the compound is a compound of Formula (Villa):
NH

C3(13 N

(R7 Z
4R13)q (R8) Formula (Villa) or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein A8 is Cle or N.
100131 In some embodiments, the compound is a compound of Formula (IX):
R4.,NH
Bl, N

R7 in o R"
A- -A-' ' Foimula (IX), or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
A' and A2 are each C; and each of A6, A7, A8, and A9 are independently CR8 or N.
[0014] In some embodiments, the compound is a compound of Formula (IXa):
R4,NH

H N B21-1..N R1 Re z n R7 0 R A
(R8)P¨

A N
Formula (IXa) or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein A8 is CR8 or N.
[0015] Any combination of the groups described above for the various variables is contemplated herein. Throughout the specification, groups and substituents thereof are chosen by one skilled in the field to provide stable moieties and compounds.
[0016] Also described herein are pharmaceutical compositions comprising a compound described herein, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, and a pharmaceutically acceptable excipient. In some embodiments, the pharmaceutical composition is formulated for administration to a mammal by intravenous administration, subcutaneous ad1111nist1aL10n, oral administration, inhalation, nasal adiniiiistiatioii, dermal administration, 01 ophthalmic administration. In some embodiments, the pharmaceutical composition is formulated for administration to a mammal by oral administration. In some embodiments, the pharmaceutical composition is in the form of a tablet, a pill, a capsule, a liquid, a suspension, a gel, a dispersion, a solution, an emulsion, an ointment, or a lotion. In some embodiments, the pharmaceutical composition is in the form of a tablet, a pill, or a capsule.
In some embodiments, the pharmaceutical composition in the form of an ointment, a lotion, a cream, an oil, a gel, a transdermal patch, or other topical formulation. In additional embodiments, the pharmaceutical composition is in the form of a liquid solution, suspension, gel, depot, or other preparation that can be administered to the eye or surrounding tissue (e.g., eye drops).
[0017] Described herein are compounds of Formula (Al), or a pharmaceutically acceptable salt, tautomer, or solvate thereof useful in the treatment of TYK2-mediated disorders Described herein are compounds of Formula (Al), or a pharmaceutically acceptable salt, tautomer, or solvate thereof, useful in the treatment of an inflammatory or autoimmune disease. In some embodiments, the disease is selected from rheumatoid arthritis, multiple sclerosis, psoriasis, psoriatic arthritis, lupus, systemic lupus erythematosus, Sjogren's syndrome, ankylosing spondylitis, vitiligo, atopic dermatitis, scleroderma, alopecia, hidradenitis suppurativa, uveitis, dry eye, intestinal bowel disease, Crohn's disease, ulcerative colitis, celiac disease, Bechet's disease, type 1 diabetes, systemic sclerosis, and idiopathic pulmonary fibrosis. In some embodiments, the disease is selected from psoriasis, psoriatic arthritis, vitiligo, atopic dermatitis, alopecia, and hidradenitis suppurativa. In some embodiments, the disease is selected from i nterferonopathi es such as, by way of example, Al cardi-Goutieres syndrome [0018] In any of the aforementioned aspects are further embodiments in which the effective amount of the compound of Formula (I), or a pharmaceutically acceptable salt, or solvate thereof, is: (a) systemically administered to the mammal; and/or (b) administered orally to the mammal; and/or (c) intravenously administered to the mammal; and/or (d) administered by inhalation; and/or (e) administered by nasal administration; or and/or (f) administered by injection to the mammal; and/or (g) administered topically to the mammal;
and/or (h) administered by ophthalmic administration; and/or (i) administered rectally to the mammal;
and/or (j) administered non-systemically or locally to the mammal.
[0019] In any of the aforementioned aspects are further embodiments comprising single administrations of the effective amount of the compound, including further embodiments in which the compound is administered once a day to the mammal or the compound is administered to the mammal multiple times over the span of one day. In some embodiments, the compound is administered on a continuous dosing schedule. In some embodiments, the compound is administered on a continuous daily dosing schedule.
[0020] In any of the embodiments disclosed herein, the mammal is a human.
[0021] In some embodiments, compounds provided herein are topically administered to a human.

[0022] Articles of manufacture, which include packaging material, a compound described herein, or a pharmaceutically acceptable salt thereof, within the packaging material, and a label that indicates that the compound or composition, or pharmaceutically acceptable salt, tautomers, pharmaceutically acceptable N-oxide, pharmaceutically active metabolite, pharmaceutically acceptable prodrug, or pharmaceutically acceptable solvate thereof, is used for modulating TYK2, or for the treatment, prevention or amelioration of one or more symptoms of a disease or condition that would benefit from modulating TYK2, are provided.
[0023] Other objects, features and advantages of the compounds, methods and compositions described herein will become apparent from the following detailed description.
It should be understood, however, that the detailed description and the specific examples, while indicating specific embodiments, are given by way of illustration only, since various changes and modifications within the spirit and scope of the instant disclosure will become apparent to those skilled in the art from this detailed description DETAILED DESCRIPTION OF THE INVENTION
[0024] TYK2 activation has been linked to many diseases and disorders, including inflammatory diseases and disorders, autoimmune diseases and disorders, respiratory diseases and disorders, and cancer.
[0025] In particular, IL-23 activation of TYK2 is associated with inflammatory diseases such as inflammatory bowel disease (fl3D), Crohn's disease, celiac disease, and ulcerative colitis. As the downstream effector of IL-23, TYK2 also plays a role in psoriasis, ankylosing spondylitis, and Behcet's disease. TYK2 has also been associated with diseases and conditions of the skin, such as psoriasis, vitiligo, atopic dermatitis, hidradenitis suppurativa, scleroderma; or diseases and conditions of the eye, such as Sjogren's syndrome, uveitis, and dry eye.
[0026] TYK2 is associated with respiratory diseases and conditions such as asthma, chronic obstructive pulmonary disease (COPD), lung cancer, and cystic fibrosis. Goblet cell hyperplasia (GCH) and mucous hypersecretion is mediated by IL-13-induced activation of the TYK2/STAT6 pathway.
[0027] TYK2 is also associated with autoimmune diseases and conditions, such as multiple sclerosis (MS), lupus, and systemic lupus erythematosus (SLE). Loss of function mutation in TYK2, leads to decreased demyelination and increased remyelination of neurons, further suggesting a role for TYK2 inhibitors in the treatment of MS and other CNS
demyelination disorders_ Various type I IFN signaling pathways dependent on TYK2 signaling have implicated TYK2 in SLE and other autoimmune diseases and conditions.

[0028] TYK2 is associated with arthritis, including psoriatic arthritis and rheumatoid arthritis.
Decreased TYK2 activity leads to protection of joints from collagen antibody-induced arthritis, a model of human rheumatoid arthritis.
[0029] TYK2 has also been shown to play an important role in maintaining tumor surveillance and TYK2 knockout mice showed compromised cytotoxic T cell response, and accelerated tumor development. These effects are largely due to the efficient suppression of natural killer (NK) and cytotoxic T lymphocytes, suggesting that TYK2 inhibitors are highly suitable for the treatment of autoimmune disorders or transplant rejection. Although other JA_K
family members such as JAK3 have similar roles in the immune system, TYK2 is a superior target because of its involvement in fewer and more closely related signaling pathways, leading to fewer off-target effects. However, studies in T-cell acute lymphoblastic leukemia (T-ALL) indicate that T-ALL
is highly dependent on IL-10 via TYK2/STAT1 signaling to maintain cancer cell survival through upregulation of anti-apoptotic protein BCL2. Knockdown of TYK2, but not other TAX
family members, reduced cell growth. Thus, selective inhibition of TYK2 has been suggested as a suitable target for patients with IL-10 and/or BCL2-addicted tumors, such as 70% of adult T-cell leukemia cases.
[0030] TYK2-mediated STAT3 signaling has also been shown to mediate neuronal cell death caused by amyl oid-f3 (AP) peptide Decreased TYK2 phosphorylation of STAT3 following AP
administration lead to decreased neuronal cell death, and increased phosphorylation of STAT3 has been observed in postmortem brains of Alzheimer's patients.
100311 Inhibition of JAK-STAT signaling pathways is also implicated in hair growth, and the reversal of the hair loss associated with alopecia areata.
[0032] Even though some TYK2 inhibitors are known, there is a continuing need to provide novel inhibitors having more effective or advantageous pharmaceutically relevant properties.
For example, compounds with increased activity or increased selectivity over other JAK kinases (especially JAK2). In some embodiments provided herein, the present invention provides inhibitors of TYK2 which show selectivity over JAK I, JAK2, and/or JAK3. In some embodiments, compounds with this selectivity (particularly over JAK2) deliver a pharmacological response that favorably treats one or more of the diseases or conditions described herein without the side-effects associated with the inhibition of JAK2.
[0033] In some embodiments, the TYK2 inhibitors described herein are used in the treatment of a disease or condition in a mammal.
Comnounds [0034] Compounds described herein, including pharmaceutically acceptable salts, tautomers, and solvates thereof, are inhibitors of TYK2. In some embodiments, compounds described herein are selective for TYK2 over other JAKs. In some embodiments, compounds described herein bind selectively/specifically to the pseudokinase domain (1I-12) of TYK2. In some embodiments, a compound described herein binds to an allosteric site of TYK2.
In additional embodiments, a compound described herein may be useful in the treatment of TYK2 mediated diseases or disorders.
[0035] In one aspect, provided herein is a compound of Formula (I):
IN_ R4 B' R5, R

n R7i} Z X3 R2 Al X2 CiA),2, X1 A
(R8)p Formula (I), or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
Ring A is an unsubstituted or substituted 6-membered heterocyclic ring wherein A1 and A2 are independently N or C, wherein if Ring A is substituted then Ring A is substituted with p instances of R8;
each R8 is independently hydrogen, halogen, unsubstituted or substituted Ci-C6 alkyl, unsubstituted or substituted Cl-C6 deuteroalkyl, unsubstituted or substituted C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Cl-C6 fluoroalkyl, unsubstituted or substituted CI-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -OR'', -C(=0)R16, -CO2R16, -C(=0)N(R16)2, -N(R16)2, -NRi6c(_0)R17, -SR16, -S(=0)R17, -SO2R17, or -SO2N(R16)2; wherein if R8 is attached to a nitrogen atom, then R8 is hydrogen, unsubstituted or substituted Ci-C6 alkyl, unsubstituted or substituted Cl-C6 deuteroalkyl, unsubstituted or substituted C6 alkenyl, unsubstituted or substituted C7-C6 alkynyl, unsubstituted or substituted Ci-C6 fluoroalkyl, unsubstituted or substituted CI-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -C(=0)R16, -CO2R16, -C(=0)N(R16)2, -S(=0)R17, -SO2R17, or -SO2N(R16)2, or two Rg attached to the same carbon atom are taken together to form =0, =S, or =NH;
Z is -NR1 -, -0-, -S-, -S(=0)-, or -SO2-;
R1 is hydrogen, Cl-C6 alkyl, Cl-C6 deuteroalkyl, Ci-C6 fluoroalkyl, C3-C6 cycloalkyl, or monocyclic heterocycle;

XI, X2, and X' are each independently CR11 or N;
each R11 is independently hydrogen, halogen, unsubstituted or substituted Ci-alkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Ci-C6 fluoroalkyl, unsubstituted or substituted Cl-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -C(=0)R16, -CO2R', -C(=0)N(R'6)2, -N(R'6)2, -NR'6C(=0)R", -SR16, -S(=0)R17, -SO2R", or -SO2N(R16)2;
B1 is N or CR12a;
B2 is N or CR12b;
Rila and Rub are each independently hydrogen, halogen, unsubstituted or substituted Cl-C6 alkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted C1-C6 fluoroalkyl, unsubstituted or substituted Ci-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -0R17, -C(=0)R16, -CO2R16, -C(=0)N(R16)2, -N(t16)2, _NR16(_0)Rt7, -SR16, -S(=0)R17, -S021C, or -SO2N(R16)2;
-121 is hydrogen, C1-C6 alkyl, or C,-C6 fluoroalkyl;
R2 is a Ring B that is an unsubstituted or substituted heterocycle or unsubstituted or substituted carbocycle, wherein if Ring B is substituted then Ring B is substituted with q instances of R13;
each R13 is independently halogen, unsubstituted or substituted Cl-C6 alkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted C1-C6 fluoroalkyl, unsubstituted or substituted Cl-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -0R17, -C(=0)R16, -CO2R16, -C(=0)N(R16)2, -N(t16)2, _NR16c(_c)R17, _sR16, _s(_c)R17, _S02R17, or -SO2N(R16)2;
or two R13 groups on adjacent atoms of Ring B are taken together with the intervening atoms to which they are attached to form an unsubstituted or substituted 5- or 6-membered monocyclic carbocycle or an unsubstituted or substituted 5- or 6-membered monocyclic heterocycle;
or R2 is -C(=0)R14, -C(_o)\TR14R15, or -C(=0)0R14;
K is hydrogen, unsubstituted or substituted Cl-C6 alkyl, Cl-C6 deuteroalkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Cl-C6 heteroalkyl, unsubstituted or substituted monocyclic carbocycle, unsubstituted or substituted bicyclic carbocycle, unsubstituted or substituted monocyclic heterocycle, or unsubstituted or substituted bicyclic heterocycle;
R15 is hydrogen, C4-C6 alkyl, or Ci-C6 fluoroalkyl;
or Rm and R15 are taken together with the intervening atoms to which they are attached to form an unsubstituted or substituted 5- or 6-membered monocyclic heterocycle;
or R1 and R15 are taken together with the intervening atoms to which they are attached to form an unsubstituted or substituted 5- or 6-membered monocyclic heterocycle;
W is -NR3- or -0-;
R3 is hydrogen, CI-C6 alkyl, C1-C6 deuteroalkyl, CI-C6 fluoroalkyl, C3-C6 cycloalkyl, or monocyclic heterocycle;
R4 is hydrogen, CI-C6 alkyl, CI-C6 deuteroalkyl, C
fluoroalkyl, C3-C6 cycloalkyl, or monocyclic heterocycle;
or R3 and R4 are taken together with the N atom to which they are attached to form a substituted or un sub sti tilted N-containing heterocycle;
or R3 and Rua are taken together with the intervening atoms to which they are attached to form a substituted or unsubstituted 5- or 6-membered heterocycle;
R5 is hydrogen, Ci-C6 alkyl, Ci-C6 fluoroalkyl, C3-C6 cycloalkyl, or monocyclic heterocycle;
each 116 and 127 is independently hydrogen, deuterium, halogen, Ci-C6 alkyl, C,-C6 deuteroalkyl, Ci-C6 fluoroalkyl, C3-C6 cycloalkyl, or monocyclic heterocycle, -CN, -OH, -0107, -C(=0)R16, -CO2R16, -C(=0)N(R16)2, -N(R16)2, -NR16C(=0)R17, -SR16, -S(=0)R17, -SO2R17, or -SO2N(R16)2;
or one R6 and one R7 attached to the same carbon atom are taken together with the carbon atom to which they are attached to form C=0 or C3-C4 cycloalkyl;
each 1116 is independently hydrogen, substituted or unsubstituted CI-C6 alkyl, substituted or unsubstituted CI-Co fluoroalkyl, substituted or unsubstituted CI-C6 hctcroalkyl, substituted or unsubstituted C3-C7 cycloalkyl, substituted or unsubstituted monocyclic 3- to 8-membered heterocycloalkyl, substituted or unsubstituted phenyl, or substituted or unsubstituted monocyclic heteroaryl;
or two R16 on the same -I\ atom are taken together with the N atom to which they are attached to form a substituted or unsubstituted N-containing heterocycle; and each RI' is independently substituted or unsubstituted Ci-C6 alkyl, substituted or unsubstituted CI-C6 fluoroalkyl, substituted or unsubstituted Ci-C6 heteroalkyl, substituted or unsubstituted C3-C7 cycloalkyl, substituted or unsubstituted monocyclic 3- to 8-membered heterocycloalkyl, substituted or unsubstituted phenyl, or substituted or unsubstituted monocyclic heteroaryl;
wherein each substituted alkyl, substituted fluoroalkyl, substituted deuteroalkyl, substituted alkoxy, substituted fluoroalkoxy, substituted heteroalkyl, substituted carbocycle, and substituted heterocycle is substituted with one or more Rs groups independently selected from the group consisting of deuterium, halogen, Cl-C6 alkyl, monocyclic carbocycle, monocyclic heterocycle, -CN, -CH7CN, -0R18, -CH2OR18, -CO2R18, -CH2CO2R", -C(=0)N(R18)2, -CH2C(=0)N(R18)2, -N(R18)2, -CH2N(R18)2, -NR"C(=0)R18, -CH2NR"C(=0)R1s, -NR"S021e-9, -CH2NlesSO2R19, -SR', -CH2SR", -S(=0)R19, -CH2S(=0)109, -SO2R19, -CH2S02R1-9, -SO2N(R18)2, or -CH2S02N(R18)2;
each R18 is independently selected from hydrogen, C1-C6 alkyl, CI-C6 fluoroalkyl, Ci-C6 heteroalkyl, C3-C6 cycloalkyl, C2-C6 heterocycloalkyl, phenyl, benzyl, 5-membered heteroaryl and 6-membered heteroaryl;
or two R18 groups are taken together with the N atom to which they are attached to form a N-containing heterocycle;
each R19 is independently selected from CI-Co alkyl, Ci-C6 heteroalkyl, C3-C6 cycloalkyl, C2-C6 heterocycloalkyl, phenyl, benzyl, 5-membered heteroaryl, and 6-membered heteroaryl;
n is 1, 2, or 3;
p is 1, 2, 3, or 4; and q is 1,2, 3, or 4.
100361 For any and all of the embodiments, substituents are selected from among a subset of the listed alternatives. For example, in some embodiments, RI is hydrogen, C1-C6 alkyl, or Ci-C6 fluoroalkyl. In some embodiments, le is hydrogen, CI-Ca alkyl, or Ci-Ca fluoroalkyl. In some embodiments, RI- is hydrogen or CI-C6 alkyl. In some embodiments, fe is hydrogen or CI-Ca alkyl. In some embodiments, R1 is hydrogen, methyl, ethyl, propyl, isopropyl, or butyl. In some embodiments, R1 is hydrogen or methyl. In some embodiments, RI- is hydrogen.
In some embodiments, R1 is methyl.
[0037] In some embodiments, R5 is hydrogen, CI-C6 alkyl, or C1-C6 fluoroalkyl.
In some embodiments, R5 is hydrogen, Ci-Ca alkyl, or Ci-C4 fluoroalkyl. In some embodiments, R5 is hydrogen or C1-C6 alkyl. In some embodiments, R5 is hydrogen or C1-C4 alkyl.
In some embodiments, R5 is hydrogen, methyl, ethyl, propyl, isopropyl, or butyl. In some embodiments, R5 is hydrogen or methyl. In some embodiments, R5 is hydrogen. In some embodiments, R5 is methyl.
[0038] In some embodiments, W is -0-.
100391 In some embodiments, W is -NR3-.
[0040] In some embodiments, the compound is a compound of Formula (la) or Formula (lb):
N,R4 R4 R5, R5, ( R6, 7 ( R6 s z n X3 R2 n R7 R2Y
A v2 A le2 `)N2 -.")(1 CA12: x1 A A
- (R8)13 Formula (Ia) Formula (Ib), or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[0041] In some embodiments, the compound is a compound of Formula (la), or a pharmaceutically acceptable salt, tautomer, or solvate thereof. In some embodiments, the compound is a compound of Formula (lb), or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
100421 In some embodiments, R4 is hydrogen, C1-C6 alkyl, C1-C6 deuteroalkyl, or Ci-C 6 fluoroalkyl. In some embodiments, le is hydrogen, Cl-C6 alkyl, or Ci-C6 deuteroalkyl. In other embodiments, le is hydrogen, C1-C4 alkyl, Ct-Ca deuteroalkyl, or Ct-C4 fluoroalkyl. In some embodiments, R4 is hydrogen, CI-Ca alkyl, or CI-C4 deuteroalkyl. In some embodiments, R4 is hydrogen, C1-C2 alkyl, or Ci-C2 deuteroalkyl. In some embodiments, R4 is hydrogen, -CH3, -CH2D, -CHD2, or -CD3. In some embodiments, R4 is hydrogen. In some embodiments, R4 is -CH3. In some embodiments, R4 is -CD3.
[0043] In some embodiments when W is -0-, R4 is hydrogen, Cl-C6 alkyl, Cl-C6 deuteroalkyl, or C1-C6 fluoroalkyl. In some embodiments, R4 is hydrogen, Ci-C6 alkyl, or C1-C6 deuteroalkyl.
In other embodiments, R4 is hydrogen, Ci-C4 alkyl, Ci-C4 deuteroalkyl, or Ci-C4 fluoroalkyl. In some embodiments, R4 is hydrogen, CI-Ca alkyl, or C1-C4 deuteroalkyl. In some embodiments, R4 is hydrogen, CI-C2 alkyl, or C1-C2 deuteroalkyl. In some embodiments, R4 is hydrogen, -CH3, -CH2D, -CHD,, or -CD3. In some embodiments, R4 is hydrogen. In some embodiments, R4 is -CH3. In some embodiments, R4 is -CD3.
[0044] In some embodiments when W is -NR3-, It3 is hydrogen, Ci-C6 alkyl, Cl-deuteroalkyl, or Ci-C6 fluoroalkyl. In some embodiments, R3 is hydrogen, Ci-C6 alkyl, or Ci-C6 deuteroalkyl. In other embodiments, Te is hydrogen, Ci-C4 alkyl, Ci-C4 deuteroalkyl, or Ci-C4 fluoroalkyl. In some embodiments, R3 is hydrogen, Ci-C4 alkyl, or Ci-C4 deuteroalkyl. In some embodiments, R3 is hydrogen, Ci-C, alkyl, or C1-C2 deuteroalkyl. In some embodiments, R3 is hydrogen, -CH3, -CH2D, -CHD2, or -CD3. In some embodiments, R3 is hydrogen. In some embodiments, R3 is -CH3. In some embodiments, R3 is -CD3.
[0045] In some embodiments when W is -NR3-, R3 is hydrogen, Ci-C6 alkyl, Ci-C6 deuteroalkyl, or Ci-C6 fluoroalkyl. In some embodiments, R4 is hydrogen, Ci-C6 alkyl, or Ci-C6 deuteroalkyl. In other embodiments, R4 is hydrogen, Ci-C4 alkyl, Cl-C4 deuteroalkyl, or Ci-C4 fluoroalkyl. In some embodiments, R4 is hydrogen, Ci-C4 alkyl, or Ci-C4 deuteroalkyl. In some embodiments, Te is hydrogen, CI-C2 alkyl, or CI-C2 deuteroalkyl. In some embodiments, R4 is hydrogen, -CH3, -CH2D, -CHD2, or -CD3. In some embodiments, R4 is hydrogen. In some embodiments, R4 is -CH3. In some embodiments, R4 is -CD3.
[0046] In some embodiments when W is -NR3-, R3 and le are each independently hydrogen, Ci-C6 alkyl, C1-C6 deuteroalkyl, or Ci-C6 fluoroalkyl. In some embodiments, R3 and R4 are each independently hydrogen, Ci-C6 alkyl, or Ci-C6 deuteroalkyl. In other embodiments, R3 and R4 are each independently hydrogen, Ci-C4 alkyl, Ci-C4 deuteroalkyl, or Ci-C4 fluoroalkyl. In some embodiments, R3 and R4 are each independently hydrogen, Ci-C4 alkyl, or Ci-C4 deuteroalkyl.
In some embodiments, R3 and R4 are each independently hydrogen, Ci-C, alkyl, or Ci-C?
deuteroalkyl. In some embodiments, R3 and R4 are each independently hydrogen, -CH3, -CH2D, -CHD2. or -CD3. In some embodiments, R3 is hydrogen. In some embodiments, R3 is hydrogen;
and R4 is hydrogen, C1-C4 alkyl, or C1-C4 deuteroalkyl. In some embodiments, R3 is hydrogen;
and R4 is hydrogen, Ci-C2 alkyl, or Ci-C2 deuteroalkyl. In some embodiments, R3 is hydrogen;
and R4 is hydrogen, -CH3, -CHD2, or -CD3. In some embodiments, R3 is hydrogen; and R4 is hydrogen. In some embodiments, R3 is hydrogen; and R4 is Ci-C4 alkyl, or deuteroalkyl. In some embodiments, R3 is hydrogen; and R4 is Ci-C2 alkyl, or Ci-C2 deuteroalkyl. In some embodiments, R3 is hydrogen; and R4 is -CH3, -CH2D, -CHD2, or -CD3. In some embodiments, R3 is hydrogen; and R4 is -CH3. In some embodiments, R3 is hydrogen; and R4 is -CD3.
[0047] In some embodiments when W is -NR3-, R3 and R4 are taken together with the N atom to which they arc attached to form a substituted or unsubstituted N-containing heterocycle. In some embodiments, R3 and R4 are taken together with the N atom to which they are attached to form a substituted or unsubstituted N-containing heterocycloalkyl. In some embodiments, R3 and R4 are taken together with the N atom to which they are attached to form a substituted or unsubstituted monocyclic N-containing heterocycloalkyl. In some embodiments, R3 and R4 are taken together with the N atom to which they are attached to form a substituted or unsubstituted 3- to 6-membered N-containing heterocycloalkyl.
[0048] In some embodiments, the compound is a compound of Formula (II) or Formula (III):
R4. R4, 131, (Dt1( 0 N
I 1, R;) R;) R R
n R7 Z r- 2 LX3 n R7 Z X3 2 Al x2 Al X2 CA): XI CL2, X1 A A
(R8)p (R8)p Formula (II) Formula (III), or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[0049] In some embodiments, the compound is a compound of Formula (II), or a pharmaceutically acceptable salt, tautomer, or solvate thereof In some embodiments, the compound is a compound of Formula (III), or a pharmaceutically acceptable salt, tautomer, or solvate thereof [0050] In some embodiments, R4 is hydrogen, CI-C6 alkyl, C,-C6 deuteroalkyl, or Ca-C6 fluoroalkyl. In some embodiments, R4 is hydrogen, Ca-Co alkyl, or Cl-C6 deuteroalkyl. In other embodiments, R4 is hydrogen, Ca-Ca alkyl, CI-Ca deuteroalkyl, or CI-C4 fluoroalkyl. In some embodiments, R4 is hydrogen, Ca-C4 alkyl, or CI-Ca deuteroalkyl. In some embodiments, R4 is hydrogen, C,-C, alkyl, or CI-C2 deuteroalkyl. In some embodiments, R4 is hydrogen, -C113, -CH2D, -CHD2, or -CD,. In some embodiments, R4 is hydrogen. In some embodiments, R4 is -CH,. In some embodiments, R4 is -CD,.
[0051] In some embodiments, is cRll, x2 is c,-,K11, and X3 is CR11; or X1 is CR11, X2 is CR11, and X3 is N; or X" is CR11. X2 is N, and X3 is CR11; or X" is CR11, X2 is N, and X3 is N; or X1 is N, X2 is CR11, and X3 is CR11; or X1 is N, X2 is CR11, and X3 is N; or X1 is N, X2 is N, and X3 is CR11 In some embodiments, X1 is cR11, x2 is call, and A -µ,3 is CR11. In some embodiments, X1 is call, x2 is (2_1( ..11, and X3 is N. In some embodiments, X1 is 0{11, x2 is N, and X3 is CR11. In some embodiments, X' is it, lc X2 is N, and X3 is N. In some embodiments, X1 is N, X2 is CR11, and X3 is CR11. In some embodiments, X1 is N, X2 is CR11, and X3 is N. In some embodiments, X1 is N, X2 is N, and X3 is CR11.
[0052] In some embodiments, X1 is cRll, x2 is c:-.11, tc and X3 is CR11; or X1 is CR11, X2 is CR11, and X' is N; or X1 is CRII. X2 is N, and X' is CR11; or X1 is N, X2 is CR11, and X' is CR11.
100531 In some embodiments, each 1211 is independently hydrogen, halogen, Ca-C6 alkyl, Ca-C6 fluoroalkyl, -CN, -OH, -OR", -CO2R16, -C(-0)N(R16)2, 2 4,4R16µ), _ SO2R17, or -SO2N(R16)2.

In some embodiments, each R" is independently hydrogen, halogen, CI-C6 alkyl, Cl-C6 fluoroalkyl, -CN, -OH, -C(=0)N(R15)2, -N(R16)2, or -SO2N(R16)2. In some embodiments, each R11 is independently hydrogen, halogen, Ci-C6 alkyl, Ci-C6 fluoroalkyl, -CN, -OH, -OR1-7, or -N(R16)2. In some embodiments, each is independently hydrogen, halogen, Ci-C4 alkyl, Ci-C4 fluoroalkyl, -CN, -OH, -0R17, or -N(R16)2. In some embodiments, each R11 is independently hydrogen, halogen, CI-C4 alkyl, Cl-C4 fluoroalkyl, or -CN. In some embodiments, each R11 is independently hydrogen, halogen, or -CN. In some embodiments, each 101 is independently hydrogen or halogen. In some embodiments, each RI- is independently hydrogen, fluoro, or chloro. In some embodiments, each is independently hydrogen or fluoro. In some embodiments, each is hydrogen.
[0054] In some embodiments, X1, X2, and X3 are each independently CH, CF, or N. In some embodiments, X', X2, and X3 are each independently CH or N. In some embodiments, X2 is CH
or CF, X2 is CH or CF, and X3 is CH or CF; or XI is CH or CF, X2 is CH or CF, and X3 is N; or is CH or CF, X2 is N, and X3 is CH or CF; or XI- is N, X2 is CH or CF, and X3 is CH or CF. In some embodiments, XI is CH, X2 is CH, and X3 is CH; or X1 is CH, X2 is CH, and X2 is N; or X1 is CH, X2 is N, and X3 is CH; or X1 is N, X2 is CH, and X3 is CH.
[0055] In some embodiments, X1- is CH, X2 is CH, CF, or N, and X3 is CH. In some embodiments, X' is CH, X2 is CF or N, and X is CH In some embodiments, X' is CH, CF, or N, X2 is CH, and X3 is CH. In some embodiments, X1 is CF, or N, X2 is CH, and X3 is CH. In some embodiments, XI is CH, X2 is CH, and X3 is CH, CF, or N. In some embodiments, X2 is CH, X2 is CH, and X3 is CF or N.
[0056] In some embodiments, the compound is a compound of Formula (IV) or Formula (V):
Rt NH R4 '0 HN B2 NH HN---µ.-B2 NH
( R6\ 2 R6' n R7Z R2 n R7Z 140 R

i5k2 (R5)p (R8)p Formula (IV) Formula (V) or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[0057] In some embodiments, the compound is a compound of Formula (IV), or a pharmaceutically acceptable salt, tautomer, or solvate thereof In some embodiments, the compound is a compound of Formula (V), or a pharmaceutically acceptable salt, tautomer, or solvate thereof.

[0058] In some embodiments, leis hydrogen, CI-C6 alkyl, CI-C6 deuteroalkyl, or Ca-C6 fluoroalkyl. In some embodiments, R4 is hydrogen, Ca-C6 alkyl, or Ci-C6 deuteroalkyl. In other embodiments, R4 is hydrogen, Ci -Ca alkyl, CI-Ca deuteroalkyl, or Ci-C4 fluoroalkyl. In some embodiments, R4 is hydrogen, Ca-Ca alkyl, or Ci-C4 deuteroalkyl. In some embodiments, R4 is hydrogen, C1-C2 alkyl, or Ca-C2 deuteroalkyl. In some embodiments, R4 is hydrogen, -CH3, -CH2D, -CHD2, or -CD3. In some embodiments, R4 is hydrogen. In some embodiments, R4 is -CH3. In some embodiments, R4 is -CD3.
100591 In some embodiments, Ring A is an unsubstituted or substituted 6-membered heterocycloalkyl ring wherein A1 and A2 are independently N or C, wherein if Ring A is substituted then Ring A is substituted with p instances of R8.
[0060] In some embodiments, each le is independently hydrogen, halogen, unsubstituted or substituted Ci-C6 alkyl, unsubstituted or substituted Cl-C6 deuteroalkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C)-C6 alkynyl, unsubstituted or substituted C1-C6 fluoroalkyl, unsubstituted or substituted CI-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -0R17, -C(=0)R16, -CO2R16, -C(=0)N(R16)2, _N(R16)2, _NR16c (=o)R17, _sR16, _s(_o)R17, _SO2R17, or -SO2N(R16)2;
wherein if R8 is attached to a nitrogen atom, then R8 is hydrogen, unsubstituted or substituted Ca-C6 alkyl, unsubstituted or substituted Ca-C6 deuteroalkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted C1-C6 fluoroalkyl, unsubstituted or substituted Ca-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -C(=0)R16, -CO2R16, -C(=0)N(R16)2, -S(=0)R12, -SO2R17, or -SO2N(W6)2; or two R8 attached to the same carbon atom are taken together to form =0, =S, or =NH. In some embodiments, each 12_8 is independently hydrogen, halogen, unsubstituted or substituted C1-C6 alkyl, unsubstituted or substituted Ci-C6 deuteroalkyl, unsubstituted or substituted Ca-C6 fluoroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -0R17, -C(=0)R16, -0O2R16, or -C(=0)N(R16)2; wherein if R8 is attached to a nitrogen atom, then 128 is hydrogen, unsubstituted or substituted Ci-C6 alkyl, unsubstituted or substituted Ca-C6 deuteroalkyl, unsubstituted or substituted Ci-C6 fluoroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -C(=0)R16, -0O2R16, or -C(=0)N(R16)2; or two R8 attached to the same carbon atom are taken together to form =0, =S, or =NH. In some embodiments, each R8 is independently hydrogen, -Cl, -F, methyl, ethyl, isopropyl, -CD3, -CH2OH, -CF3, cyclopropyl, oxetanyl, azetidinyl, -CN, -OH, -CO2H, or -CO2CH3; wherein if le is attached to a nitrogen atom, then R8 is hydrogen, methyl, ethyl, isopropyl, -CD3, -CH2OH, -CF3, cyclopropyl, oxetanyl, azetidinyl, -CO2H, or -CO2CH3; or two R8 attached to the same carbon atom are taken together to form =0. In some embodiments, each le is independently hydrogen, methyl, -CD3, -OH, -CH2OH, -CF3, oxetanyl, -CN, or -CO2CH3; wherein if R8 is attached to a nitrogen atom, then R8 is hydrogen, methyl, -CD3, -CH2OH, oxetanyl, or -0O2CH3; or two R8 attached to the same carbon atom are taken together to form =0.
100611 In some embodiments, p is 0, 1, 2, 3, or 4. In some embodiments, p is 1, 2, 3, or 4. In some embodiments, p is 1, 2, or 3. In some embodiments, p is 1 or 2. In some embodiments, p is 1. In some embodiments, p is 2. In some embodiments, p is 0; and Ring A is therefore unsubstituted.
[0062] In some embodiments, Ring A is an unsubstituted or substituted 6-membered heteroaryl ring wherein Al and A2 are independently N or C, wherein if Ring A
is substituted then Ring A is substituted with p instances of R8. In some embodiments, Ring A
is an unsubstituted or substituted pyridine, unsubstituted or substituted pyridazine, unsubstituted or substituted pyrimidine, unsubstituted or substituted pyrazine, unsubstituted or substituted triazine, or unsubstituted or substituted pyridone, wherein if Ring A is substituted then Ring A is substituted with p instances of R8. In some embodiments, Ring A is an unsubstituted or substituted pyridine, unsubstituted or substituted pyrimidine, unsubstituted or substituted pyrazine, or unsubstituted or substituted pyridone, wherein if Ring A is substituted then Ring A
is substituted with p instances of 128 In some embodiments, Ring A is an unsubstituted or substituted pyridine, or unsubstituted or substituted pyrimidine, wherein if Ring A is substituted then Ring A is substituted with p instances of R8.
100631 In some embodiments, Ring A is an unsubstituted or substituted pyridine, wherein if Ring A is substituted then Ring A is substituted with p instances of R8. In some embodiments, Ring A is an unsubstituted or substituted pyridazine, wherein if Ring A is substituted then Ring A is substituted with p instances of R8. In some embodiments, Ring A is an unsubstituted or substituted pyrimidine, wherein if Ring A is substituted then Ring A is substituted with p instances of R8. In some embodiments, Ring A is an unsubstituted or substituted pyrazine, wherein if Ring A is substituted then Ring A is substituted with p instances of R8. In some embodiments, Ring A is an unsubstituted or substituted triazine, wherein if' Ring A is substituted then Ring A is substituted with p instances of R8. In some embodiments, Ring A
is an unsubstituted or substituted pyridone, wherein if Ring A is substituted then Ring A is substituted with p instances of Ie.

N Ai NT-AI
N, (Ra)p (1:28)10 N (118)p [0064] In some embodiments, Ring A is N-Yµ NUiy\
,x,N,D81 N...< 8 (R-)P, or v- 113 . In some embodiments, Ring A is (R )P . In some embodiments, N

Ring A is (R8)P . In some embodiments, Ring A is (R )P . In some embodiments, Ring N, A is NB (R)P In some embodiments, Ring A is IR-1 "P In some embodiments, Ring A is (Ra)p a a cAl \ b Al A
A9c3A- b A
(Ra)p All.
100651 In some embodiments, is A7 AB
; wherein (i) Al and A2 are each C; and A6, A7, A8, and A9 are each independently CR8 or N;
(ii) Al is N; A2 is C; A6, A7, and A8 are each independently CR8 or N; and A9 is C(=0);
(iii) Al is C; A2 is N; A6 is C(=0); and A7, A8, and A9 are each independently CR8 or N;
OF
(iv) A' and A2 are each C; one of A6, A7, A8, and A9 is NR', wherein A6, A7, A8, or A9 adjacent to the NIP.' is C(=0) and the remaining members of A6, A7, A8, and A9 are each independently CR8 or N.
a a Al 2\ Al \
b b A
A8\-1A6 (1728)p , 100661 In some embodiments, is A7 ; wherein A' and A2 are each C;
a , b CAl\
and A6, A7, A8, and A9 are each independently Cle or N. In some embodiments, (R8) i p s b A8 \--;A8 ; wherein Al is N; A2 is C; A6, A7, and A8 arc each independently CR8 or N;
and A9 Al 2\ Al b AA:
\b A
is C(=0). In some embodiments, (R8)p s =-A7 ; wherein A' is C; A2 is N; A6 is C(=0); and A7, A8, and A9 are each independently CR8 or N. In some embodiments, a Ai 2\ Ai , b b A
(R8)P is A8"A7A6 ; wherein Al and A2 are each C; one of A6, A7, As, and A9 is NRs, wherein A6, A7, A8, or A9 adjacent to the Me is C(=0) and the remaining members of A6, A7, As, and A9 are each independently CR8 or N.
100671 In some embodiments, the compound is a compound of Formula (VI) or Formula (VII):

N H

H
R6' IR7)) Z ( 2 RR7i)Z R2 n Al , Al 10 A- ,70c5,51.,2 A8 A8 A8, A8 =/2k. A' Formula (VI) Formula (VII) or a pharmaceutically acceptable salt, tautomer, or solvate thereof; wherein (i) Al and A2 are each C; and A6, A7, A8, and A9 are each independently CR8 or N;
(ii) Al is N; A2 is C; A6, A7, and A8 are each independently CR8 or N; and A9 is C(=0);
(iii) A' is C; A2 is N; A6 is C(=0); and A7, A8, and A9 are each independently CR8 or N;
or (iv) Ai and A2 are each C; one of A6, A7, A8, and A9 is NR8, wherein A6, A7, A8, or A9 adjacent to the NR8 is C(=0) and the remaining members of A6, A7, A8, and A9 are each independently CR8 or N.
100681 In some embodiments, A' and A2 are each C; and A6, A7, A8, and A9 are each independently CR8 or N. In some embodiments, A' is N; A2 is C; A6, A7, and A8 are each independently CR8 or N; and A9 is C(=0). In some embodiments, Ai is C; A2 is N; A6 is C(=0);

and A7, Ag, and A9 are each independently CR8 or N. In some embodiments, Al-and A2 are each C; one of A6, A7, A8, and A9 is NR', wherein A6, A2, A8, or A9 adjacent to the NR' is C(=0) and the remaining members of A6, A7, Ag, and A9 are each independently CR8 or N.
[0069] In some embodiments, the compound is a compound of Formula (VI), or a pharmaceutically acceptable salt, tautomer, or solvate thereof. In some embodiments, the compound is a compound of Formula (VII), or a phaimaceutically acceptable salt, tautomer, or solvate thereof [0070] In some embodiments, A1 is C; A2 is C; A6 is N; A7 is CR8 or N; A8 is CR8 or N; and A9 is CR8 or N. In some embodiments, Al is C; A2 is C; A6 is N; A7 is CRg; Ag is CRg; and A9 is CRg.
[0071] In some embodiments, Al is C; A2 is C; A6 is N; A7 is Cle: A8 is CR8; and A9 is CR8;
or Al is C; A2 is C; _A6 is CR8; A7 is N; Ag is CR% and A9 is CR8;
or Al is C; A2 is C; A6 is CR8; A7 is CR8; A8 is N; and A9 is CR8;
or Al is C; A2 is C; A6 is CR8; A7 is CR8; A8 is CR8; and A9 is N.
[0072] In some embodiments, Al is N; A2 is C; A6 is CRg; A7 is CR8; is CR8; and A9 is C(=0);
or A' is C; A2 is N; AO is C(=0); A7 is CR8; Ag is C128; and A9 is CR8;
or Al is C; A2 is C; A6 is NR'; A7 is C(=0); A8 is CR8; and A9 is CRg;
or Al is C; A2 is C; A6 is C(=0); A7 is NR'; A8 is CR8; and A9 is CR8;
or Al is C; A2 is C; A6 is CR8; A7 is NR8; Ag is C(=0); and A9 is CRg;
or Al is C; A2 is C; A6 is CR8; A7 is C(=0); Ag is Nle; and A9 is Cie;
or Al is C; A2 is C; A6 is CI18; A7 is CR8; A8 is NR8; and A9 is C(=0);
or Al is C; A2 is C; A6 is CR8; A7 is CR8; A8 is C(=0); and A9 is NR8.
[0073] In some embodiments, Al is C; A2 is C; A6 is N; A7 is N; Ag is CRg; and A9 is CRg;
or Al is C; A2 is C; A6 is N; A7 is CR8; Ag is N; and A9 is CR8;
or Al is C; A2 is C; A6 is N; A7 is CR% A8 is CR8; and A9 is N;
or Al is C; A2 is C; A6 is CR8; A7 is N; A8 is N; and A9 is CR8;
or Al is C; A2 is C; A6 is CR8; A7 is N; A8 is CR8; and A9 is N;
or Al is C; A2 is C; A6 is CRg; A7 is CRg; Ag is N; and A9 is N.
100741 In some embodiments, Al is C; A2 is C; A6 is CIV; A7 is N; A8 is N; and A9 is N;
or Al is C; A2 is C; A6 is N; A7 is CR8; A8 is N; and A9 is N;
or Al is C; A2 is C; A6 is N; A7 is N; A8 is CR8; and A9 is N;

or Al is C; A2 is C; A6 is N; A7 is N; A8 is N; and A9 is CR8;
or A' is C; A2 is C; A6 is N; A7 is N; Ag is N; and A9 is N
[0075] In some embodiments, Al is C; A2 is C; A6 is N; A7 is CR8: Ag is CR8; and A9 is CRg;
or Al is C; A2 is C; A6 is N; A7 is CR8; A8 is N; and A9 is CR8; or or Al is C; A2 is C; A6 is N; A7 is CRg; A8 is CRg; and A9 is N;
or A' is C; A2 is C; A6 is C(=0); A7 is NR'; A' is CR8; and A9 is CR8 [0076] In some embodiments, Al is C; A2 is C; A6 is N; A7 is CR8: Ag is CRg; and A9 is CRg;
or Al is C; A2 is C; A6 is N; A7 is CR8; A8 is N; and A9 is CRg.
a am , b .--, .1::I
HO a A9r-A2 A b -..õ, NA
b .= ...,\
b A, 7 A (R8) 100771 In some embodiments, A is P OH
\-:(- - , a a a a 7.
Al \
b 17--"A b NI`---- A` b 9--A2 b P,1/4 , a&\ b I
N N,.,., LI.,,.1..,___,,. AD 7 A6 --, N
, , -A . In some embodiments, ' is N , a ¨ a b N ' b I
b N ...'= b N =--õ, b ......N

N _. N it,..r.N N,N.=;-. 11..N-- N /
-....... , or . In some embodiments, a a.,.,. a ¨

A9rm'A2\ b b A98Al0--A2\ b N.
--"kõ-..-N, b nAsi , 1 9-1 A6 A A6 ;01 'A7 is ''''''4.. - . In some embodiments, 'A7 is .
[0078] In some embodiments, Ring A exists in a tautomeric form wherein both tautomers are a ..õ..r.¨

I b -...,,, considered within the scope of the present disclosure. For example, may be in a a ¨, a oy,,i1),\
.,, tautomeric form that is: b. In some embodiments, 0 exists in the a ), -.' N b A9 Al'A2 \ b 0 =¨,s....L A 7 tautomeric form that is: 0 . In some embodiments, A is or a ¨ a -7 a QA1 b A A
- siok- b N A b 0 . In some embodiments, P1/47 is 0 . In some embodiments, a ¨
am +, a -7 a -.7 a -.7 0 N....-\ ----N")µ b ''.
Al % Al \
A9rTh'-A2 , b 4:),N...,..õ.\\. A8n'A2 ' b I b Al " AI 6 U b Al 8'---; ik6 ...z.,,,...,....A...
io1/47 =
( R8) ( R8) In some embodiments, s'A" is P P
, a a a a r(70µ b a b "T"Ai b nA 13 (R8441TA b \ R'-'s)o ¨ N µI
N,Ra N '0 0."-P'µ N iRi3) 0 R8 , , R8 P 0 P R8 P
, a a ¨ a -71)µ b Y)µ 0 b ..j, "A b R8 N If?R-i A \
R8õ1 R8 N 8) 0 P N .....R8) P , or "` iP _ [0079] In some embodiments, Ring A exists as an N-oxide. In some embodiments, Ring A is a a ¨
a -- a Cy\I b b Ai N0_ b I ) = = " +
N +
- ,+ (I _ -0' N
pyridine N-oxide. In some embodiments, Ring A is I , , a _ N '=-= b or .
[0080] In some embodiments, A1 and A2 are each C. In some embodiments, A6, A7, A8, and A9 are each independently CR8 or N. In some embodiments, A6, A7, A8, and A9 are each independently CR8. In some embodiments, one of A6, A7, A8, and A9 is N. In some a -r, Al r:\ b C A
(R8 =
embodiments, two of A6, A7, A8, and A9 are N. In some embodiments, )0 is a b , and A6, A7, A8, and A9 are each independently CR8 or N.
a a Al b A A6 A6 =-= A6 7 100811 In some embodiments, 'A" is A, In some embodiments, A', A7, A8, and A9 are each independently CR8 or N.
[0082] In some embodiments, A6 is N; A7 is CR8; Ag is CR8; and A9 is CR8;
or A6 is CR8; A7 is N; A8 is CR8; and A9 is CR8;
or A6 is CR8; A' is CR8; A8 is N; and A9 is CR8;
or A6 is CR8; A7 is CR8; A8 is CR8; and A9 is N.
[0083] In some embodiments, A6 is N; A7 is N; A8 is CR8; and A9 is CR8;
or A6 is N; A7 is CR8; Ag is N; and A9 is CR8;
or A6 is N; A7 is Cie, As is CR8; and A9 is N;
or A6 is CR8; A7 is N; A8 is N; and A9 is CR8;
or A6 is CR8; A7 is N; A8 is CR8; and A9 is N;
or A6 is CR8; A7 is CR8; A8 is N; and A9 is N.
100841 In some embodiments, A6 is CR8 or N; A7 is CR8; A8 is CR8 or N; and A9 is CR8.
a a ç.
Al ABc-A2 b [0085] In some embodiments, A "A7 A
is ABA6; where A6 is CR8 or N and A8 is CR8 or N. In some embodiments, A6 is N and A8 is CR8 or N. In some embodiments, A6 is N and A8 is CR8. In some embodiments, A6 is N and A8 is N.
[0086] In some embodiments, the compound is a compound of Formula (VIa) or Formula (Vila):

t(13.`IN 0 OBN
I ,L

rJR7 Z rA2 = 7R2 (R8) (R8) Formula (Via) Formula (Vila) or a pharmaceutically acceptable salt, tautomer, or solvate thereof; wherein Ag is CR8 or N.
[0087] In some embodiments, the compound is a compound of Formula (VIa), or a pharmaceutically acceptable salt, tautomer, or solvate thereof. In some embodiments, the compound is a compound of Formula (VIIa), or a pharmaceutically acceptable salt, tautomer, or solvate thereof In some embodiments, A8 is CR8. In some embodiments, A8 is N.
[0088] In some embodiments, the compound is a compound of Formula (VIb) or Formula (VIIb):

BN
HN Bi- NH
HN B2.- NH

,kR7 rA2 = 7R2 (R8i (R8i P P N
Formula (VIb) Formula (VIIb) or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[0089] In some embodiments, the compound is a compound of Formula (VIb), or a pharmaceutically acceptable salt, tautomer, or solvate thereof. In some embodiments, the compound is a compound of Formula (VIIb), or a pharmaceutically acceptable salt, tautomer, or solvate thereof 100901 In some embodiments, the compound is a compound of Formula (Vie) or Formula (VIIc):

t(13.`IN 0 OBN
I ,L

rJR7 Z r-x2 (R8) (R8) N N N N
Formula (Vic) Formula (Vile) or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[0091] In some embodiments, the compound is a compound of Formula (VIb), or a pharmaceutically acceptable salt, tautomer, or solvate thereof. In some embodiments, the compound is a compound of Formula (VIIb), or a pharmaceutically acceptable salt, tautomer, or solvate thereof [0092] In some embodiments, the compound is a compound of Formula (VId) or Formula (VIId):

BN
HN Bi- NH

n kR7 rA2 N N
(R8 P 1p Formula (VId) Formula (VIId) or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[0093] In some embodiments, the compound is a compound of Formula (VId), or a pharmaceutically acceptable salt, tautomer, or solvate thereof. In some embodiments, the compound is a compound of Formula (VIId), or a pharmaceutically acceptable salt, tautomer, or solvate thereof [0094] In some embodiments, the compound is a compound of Formula (Vie) or Formula (Vile):

'NH 0 BN
I ,L

R6 R2 Re R2 n \ R7 n kR7 (R8)¨ (R8)¨
p p 0 1;1 0 Formula (Vie) Formula (Vile) or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[0095] In some embodiments, the compound is a compound of Formula (VIe), or a pharmaceutically acceptable salt, tautomer, or solvate thereof. In some embodiments, the compound is a compound of Formula (Vile), or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[0096] In some embodiments, each RB is independently hydrogen, halogen, unsubstituted or substituted Ci-C6 alkyl, unsubstituted or substituted Cl-C6 deuteroalkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Ci-C6 fluoroalkyl, unsubstituted or substituted CI-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -OR'', -C(=0)R16, -CO2R16, -C(=0)N(R16)2, -N(R16)2, _NRi6c(=o)R17, _sR16, -SO2Ru, or -SO2N(R16)2;
wherein if le is attached to a nitrogen atom, then RB is hydrogen, unsubstituted or substituted Ci-C6 alkyl, unsubstituted or substituted Cl-C6 deuteroalkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Ci-C6 fluoroalkyl, unsubstituted or substituted Ci-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -C(=0)R16, -CO2R16, -C(=0)N(R16)2, -S(=0)R17, -SO2R17, or -SO2N(R16)2.
[0097] In some embodiments, each RB is independently hydrogen, halogen, unsubstituted or substituted Ci-C 6 alkyl, unsubstituted or substituted C,-C6 deuteroalkyl, unsubstituted or substituted Ci-C6 fluoroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -C(=0)R16, -CO2R16, or -C(=0)N(R16)2; wherein if Rs is attached to a nitrogen atom, then le is hydrogen, unsubstituted or substituted C1-C6 alkyl, unsubstituted or substituted Cl-C6 deuteroalkyl, unsubstituted or substituted Cl-C6 fluoroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -C(=0)R16, -CO2R16, or -C(=0)N(R16)2.
100981 In some embodiments, each RB is independently hydrogen, halogen, Ci-C 6 alkyl, Cl-C6 deuteroalkyl, CI-C6 fluoroalkyl, C3-C6 cycloalkyl, 4- to 6-membered heterocycloalkyl, -CN, -OH, -OR', -C(=0)R16, -CO2R16, or -C(=0)N(R16)2; wherein if le is attached to a nitrogen atom, then R8 is hydrogen, Cl-C6 alkyl, Cl-C6 deuteroalkyl, Ci-C6 fluoroalkyl, C3-C6 cycloalkyl, 4- to 6-membered heterocycloalkyl, -C(=0)R16, -CO2R16, or -C(=0)N(R16)2.
[0099] In some embodiments, each R8 is independently hydrogen, -Cl, -F, methyl, ethyl, isopropyl, -CD3, -CH2OH, -CF3, cyclopropyl, oxetanyl, azetidinyl, -CN, -OH, -CO2H, or -CO2CH3; wherein if R8 is attached to a nitrogen atom, then R8 is hydrogen, methyl, ethyl, isopropyl, -CD3, -CH2OH, -CF3, cyclopropyl, oxetanyl, azetidinyl, -CO2H, or -CO2CH3.
[00100] In some embodiments, each R8 is independently hydrogen, methyl, -CD3, -OH, -CH2OH, -CF3, oxetanyl, -CN, or -CO2CH3; wherein if R8 is attached to a nitrogen atom, then R8 is hydrogen, methyl, -CD3, -CH2OH, oxetanyl, or -CO2CH3.
[00101] In some embodiments, each R8 is independently hydrogen, unsubstituted or substituted CI-Cs alkyl, unsubstituted or substituted Cl-C6 deuteroalkyl, unsubstituted or substituted CI-C6 fluoroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -C(=0)R16, -CO2R16, or -C(=0)N(R16)2. In some embodiments, each R8 is independently hydrogen, C,-C6 alkyl, Ci-C6 deuteroalkyl, CI-C6 fluoroalkyl, C3-C6 cycloalkyl, 4- to 6-membered heterocycloalkyl, -C(=0)R16, -CO2R16, or -C(=0)N(R16)2. In some embodiments, each R8 is independently hydrogen, methyl, ethyl, isopropyl, -CD3, -CH2OH, -CF3, cyclopropyl, oxetanyl, azetidinyl, -CN, or -CO2CH3 In some embodiments, each -128 is independently hydrogen, methyl, -CD3, -CH2OH, -CF3, oxetanyl, -CN, or -CO2CH3. In some embodiments, each R8 is independently hydrogen, CI-C6 alkyl, CI-C6 deuteroalkyl, or Ci-C6 fluoroalkyl. In some embodiments, each R8 is independently hydrogen, C1-C4 alkyl, Cl-C4 deuteroalkyl, or Cl-fluoroalkyl. In some embodiments, each le is independently hydrogen, methyl, ethyl, isopropyl, -CD3, or -CF3. In some embodiments, each 11_8 is independently hydrogen, methyl, -CD3, or -CF3. In some embodiments, each R8 is independently hydrogen or methyl.
[00102] In some embodiments, each R6 and R7 is independently hydrogen, deuterium, halogen, Ci-C6 alkyl, Cl-C6 deuteroalkyl, Ci-C6 fluoroalkyl, C3-C6 cycloalkyl, or monocyclic heterocycle, -CN, -OH, -C(=0) N(Ri6)2, _N(R16)2, _NRi6c(_0)R17, _SO2R17, or -SO2N(R16)2. In some embodiments, each R6 and R7 is independently hydrogen, halogen, Cl-C6 alkyl, Ci-C6 fluoroalkyl, -CN, -OH, -0R17, and -N(R16)2. In some embodiments, each R6 and R7 is independently hydrogen, halogen, or C1-C6 alkyl. In some embodiments, each R6 and R7 is independently hydrogen or Ci-C6 alkyl. In some embodiments, each R6 and It7 is independently hydrogen, deuterium, halogen, Ci-C4 alkyl, or Ci-C4 deuteroalkyl. In some embodiments, each R6 and R7 is independently hydrogen or Ci-C4 alkyl. In some embodiments, each R6 and R7 is independently hydrogen, deuterium, F, Cl, -CD3, or methyl. In some embodiments, each R6 and R7 is independently hydrogen, deuterium, F, or methyl. In some embodiments, each R6 and R7 is independently hydrogen or methyl. In some embodiments, one R6 or R7 is methyl.
In some embodiments, one R6 is methyl. In some embodiments, each R6 and R7 is hydrogen. In some embodiments, each R6 and R7 is deuterium. In some embodiments, each R6 and R7 is F.
[00103] In some embodiments, one R6 and one R7 attached to the same carbon atom are taken together with the carbon atom to which they are attached to form C=0 or C3-C4 cycloalkyl. In some embodiments, one R6 and one R7 attached to the same carbon atom are taken together with the carbon atom to which they are attached to form C=0. In some embodiments, one R6 and one R7 attached to the same carbon atom are taken together with the carbon atom to which they are attached to form C3-C4 cycloalkyl.
[00104] In some embodiments, n is 1 or 2. In some embodiments, n is 1. In some embodiments, n is 2. In some embodiments, n is 3.
[00105] In some embodiments, Z is -NR'6-, -0-, -S-, or -S02-. In some embodiments, Z is _0-, or -SO2-. In some embodiments, z is _NR1 _, _0-, or In some embodiments, Z is -NR16- or -0-.
[00106] In some embodiments, Z is -NR1 -. In some embodiments, R1 is hydrogen, CI-C6 alkyl, Cl-C6 deuteroalkyl, Ci-C6 fluoroalkyl, C3-C6 cycloalkyl, or 4- to 6-membered heterocycloalkyl. In some embodiments, Rli) is hydrogen, Ci-C6 alkyl, Cl-C6 fluoroalkyl, C3-C6 cycloalkyl, or 4-to 6-membered heterocycloalkyl. In some embodiments, Wu is hydrogen, Ci-C4 alkyl, Cl-C4 deuteroalkyl, Ci-C4 fluoroalkyl, C3-C4 cycloalkyl, or 4-membered heterocycloalkyl.
In some embodiments, RI is hydrogen, Cl-C4 alkyl, Ci-C4 fluoroalkyl, C3-C4 cycloalkyl, or 4-membered heterocycloalkyl. In some embodiments, R1 is hydrogen, CI-C4 alkyl, Ci-C4 deuteroalkyl, cyclopropyl, cyclobutyl, oxetanyl, or azetidinyl. In some embodiments, RI is hydrogen, C1-C4 alkyl, cyclopropyl, cyclobutyl, oxetanyl, or azetidinyl. In some embodiments, R1- is hydrogen, Cl-C4 alkyl, CI-C4 deuteroalkyl, or cyclopropyl. In some embodiments, R1 is hydrogen, C1-C4 alkyl, or cyclopropyl. In some embodiments, R" is hydrogen, Ci-C4 alkyl, or Ci-C4 deuteroalkyl. In some embodiments, RI is hydrogen, -CH3, or -CD3. In some embodiments, RI- is Cl-C4 alkyl or Ci-C4 deuteroalkyl. In some embodiments, RI is -CH3 or -CD3. In some embodiments, Rm is -CH3. In some embodiments, Rm is -CD3.
[00107] In some embodiments, Z is NH, NCH3, or NCD3. In some embodiments, Z is NCH3 or NCD3. In some embodiments, Z is NCH3. In some embodiments, Z is NCD3.
[00108] In some embodiments, Z is -0-. In some embodiments, Z is -S-. In some embodiments, Z is -S(=0)-. In some embodiments, Z is -SO2-.
[00109] In some embodiments, R2 is a Ring B that is an unsubstituted or substituted heterocycle or unsubstituted or substituted carbocycle, wherein if' Ring B is substituted then Ring B is substituted with q instances of RI-3. In some embodiments, R2 is a Ring B that is an unsubstituted or substituted monocyclic carbocycle, unsubstituted or substituted bicyclic carbocycle, unsubstituted or substituted monocyclic heterocycle, unsubstituted or substituted bicyclic heterocycle, unsubstituted or substituted spirocyclic carbocycle, unsubstituted or substituted spirocyclic heterocycle, unsubstituted or substituted bridged carbocycle, or unsubstituted or substituted bridged heterocycle, wherein if Ring B is substituted then Ring B
is substituted with q instances of Rn.
[00110] In some embodiments, R2 is a Ring B that is an unsubstituted or substituted monocyclic carbocycle, unsubstituted or substituted bicyclic carbocycle, unsubstituted or substituted monocyclic heterocycle, or unsubstituted or substituted bicyclic heterocycle, wherein if Ring B is substituted then Ring B is substituted with q instances of R13.
[00111] In some embodiments, R2 is a Ring B that is an unsubstituted or substituted phenyl, unsubstituted or substituted naphthyl, unsubstituted or substituted monocyclic 6-membered heteroaryl, unsubstituted or substituted monocyclic 5-membered heteroaryl, or unsubstituted or substituted bicyclic heteroarylõ wherein if Ring B is substituted then Ring B
is substituted with q instances of R1-3.
[00112] In some embodiments, R2 is a Ring B that is an unsubstituted or substituted phenyl, unsubstituted or substituted monocyclic 6-membered heteroaryl, or unsubstituted or substituted monocyclic 5-membered heteroaryl, wherein if Ring B is substituted then Ring B
is substituted with q instances of R13.
[00113] In some embodiments, R2 is a Ring B that is an unsubstituted or substituted monocyclic 5-membered heteroaryl, wherein if Ring B is substituted then Ring B
is substituted with q instances of RH. In some embodiments, R2 is a Ring B that is an unsubstituted or substituted pyrrolyl, unsubstituted or substituted furanyl, unsubstituted or substituted thiophenyl, unsubstituted or substituted pyrazolyl, unsubstituted or substituted imidazolyl, unsubstituted or substituted oxazolyl, unsubstituted or substituted isoxazolyl, unsubstituted or substituted thiazolyl, unsubstituted or substituted isothiazolyl, unsubstituted or substituted triazolyl, unsubstituted or substituted oxadiazolyl, unsubstituted or substituted thiadiazolyl, or unsubstituted or substituted tetrazolyl, wherein if Ring B is substituted then Ring B is substituted with q instances of Rn. In some embodiments, R2 is a Ring B that is an unsubstituted or substituted pyrrolyl, unsubstitutcd or substituted imidazolyl, unsubstitutcd or substituted pyrazolyl, unsubstituted or substituted triazolyl, or unsubstituted or substituted tetrazolyl, wherein if Ring B is substituted then Ring B is substituted with q instances of R1-3. In some embodiments, R2 is a Ring B that is an unsubstituted or substituted pyrrolyl, unsubstituted or substituted imidazolyl, or unsubstituted or substituted pyrazolyl, wherein if Ring B is substituted then Ring B is substituted with q instances of R1-3.

[00114] In some embodiments, R2 is a Ring B that is an unsubstituted or substituted phenyl or unsubstituted or substituted monocyclic 6-membered heteroaryl, wherein if Ring B is substituted then Ring B is substituted with q instances of R13 [00115] In some embodiments, R2 is a Ring B that is an unsubstituted or substituted phenyl, unsubstituted or substituted pyridinyl, unsubstituted or substituted pyrimidinyl, unsubstituted or substituted pyrazinyl, or unsubstituted or substituted pyridazinyl, wherein if Ring B is substituted then Ring B is substituted with q instances of R13.
[00116] In some embodiments, R2 is a Ring B that is an unsubstituted or substituted monocyclic 6-membered heteroaryl, wherein if Ring B is substituted then Ring B
is substituted with q instances of R13. In some embodiments, R2 is a Ring B that is an unsubstituted or substituted pyridinyl, unsubstituted or substituted pyrimidinyl, unsubstituted or substituted pyrazinyl, or unsubstituted or substituted pyridazinyl, wherein if Ring B is substituted then Ring B is substituted with q instances of R1-3. In some embodiments, R2 is a Ring B
that is an unsubstituted or substituted pyridinyl or unsubstituted or substituted pyrimidinyl, wherein if Ring B is substituted then Ring B is substituted with q instances of R13. In some embodiments, R2 is a Ring B that is an unsubstituted or substituted pyridinyl, wherein if Ring B is substituted then Ring B is substituted with q instances of R13. In some embodiments, R2 is a Ring B that is an unsubstituted or substituted pyrimidinyl, wherein if Ring B is substituted then Ring B is substituted with q instances of R13.
R13)õ,, 513)q õ.,(R13)1 AR13)q N
N
[00117] In some embodiments, R2 is , or r _4R13)q _411113)(1 AR13)q 1_6" 1_1 17.
; and q is 0-4. In some embodiments, R2 is N
R13 AR13).
,JR13 )(1 ) kr¨A, N
or N ; and q is 0-4. In some embodiments, R2 is N
Of ; and q is 0-4.
.1R13)q [00118] In some embodiments, R2 is N.V, where V is CH, CR9, or N; and q is 0, 1, 2, 3 AT. 11R13),1 I
or 4. In some embodiments, R2 is NV
, where V is CH, CR9, or N; and q is 0, 1, 2, or 3.
[00119] In some embodiments, the compound is a compound of Formula (VIII):

'NH

I
HN---'-131 NH
( R6 z ,\R7r1 0110 TtRi3N
Al _ Formula (VIII) or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein V
is N, CH, or CR13;
q is 1, 2, 3, or 4; and A1, Az, A6, A7, k 8, A and A9 are as defined herein.
[00120] In some embodiments, V is N. In some embodiments, V is CH or CR13. In some embodiments, V is CH. In some embodiments, V is CR'3.
[00121] In some embodiments, (i) A1 and A2 are each C; and A6, A7, A8, and A9 are each independently CR8 or N;
(ii) Al is N; A2 is C; A6, A7, and A8 are each independently CR8 or N; and A9 is C(=0);
(iii) Al is C; A2 is N; A6 is C(=0); and A7, A8, and A9 are each independently CR8 or N;
OF
(iv) A' and A2 are each C; one of A6, A7, A8, and A9 is NR8, wherein A6, A7, A8, or A9 adjacent to the NR8 is C(=0) and the remaining members of A6, A7, A8, and A9 are each independently CR8 or N.
[00122] In some embodiments, R4 is hydrogen, CI-C6 alkyl, CI-C6 deuteroalkyl, or Ci-C6 fluoroalkyl. In some embodiments, it4 is hydrogen, Ci-C6 alkyl, or Ci-C6 deuteroalkyl. In other embodiments, le is hydrogen, Ci-C4 alkyl, CI-Ca deuteroalkyl, or CI-C4 fluoroalkyl. In some embodiments, R4 is hydrogen, CI-CI alkyl, or CI-CI deuteroalkyl. In some embodiments, R4 is hydrogen, CL-C2 alkyl, or Ci-C2 deuteroalkyl. In some embodiments, R4 is hydrogen, -CH3, -CH2D, -CHD2, or -CD3. In some embodiments, R4 is hydrogen. In some embodiments, R4 is -CH3. In some embodiments, R4 is -CD3.
[00123] In some embodiments, the compound of Formula (VIII) is a compound of Formula (Villa):

'NH

( Re i Formula (Villa), or a pharmaceutically acceptable salt, tautomer, or solvate thereof; wherein A' is Cle or N. In some embodiments, A8 is CR8 In some embodiments, A8 is N.
[00124] In some embodiments, the compound is a compound of Formula (VIIIb) or Formula (VIIIc):
R4 R4 R4,NH

0.1E3--1N 13 HN B-- NH
n E (R7R6 Z n ( R6 R7 R13) ,R13)ci (R8) V (R8) V
P N
Formula (VIIIb) Formula (VIIIc) or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[00125] In some embodiments, the compound is a compound of Formula (VIIIb), or a pharmaceutically acceptable salt, tautomer, or solvate thereof. In some embodiments, the compound is a compound of Formula (VIIIc), or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[00126] In some embodiments, the compound is a compound of Formula (VIIId):

-NH

I

( R6 (R8)1, P
Formula (VIIld) or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[00127] In some embodiments, the compound is a compound of Formula (Ville):
R4,NH
OtC13*-1N
I _L

,(R7R6 ZLJ L
-11(R13) (R8)P

Formula (Ville) or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[00128] In some embodiments, V is N. In some embodiments, V is CH or CR". In some embodiments, V is CH. In some embodiments, V is CR13.
[00129] In some embodiments, R4 is hydrogen, CI-C6 alkyl, CI-C6 deuteroalkyl, or CI-Co fluoroalkyl. In some embodiments, le is hydrogen, Cl-C6 alkyl, or Cl-C6 deuteroalkyl. In other embodiments, R4 is hydrogen, C1-C4 alkyl, CI-Ca deuteroalkyl, or Ct-C4 fluoroalkyl. In some embodiments, R4 is hydrogen, C1-C4 alkyl, or Ci-C4 deuteroalkyl. In some embodiments, R4 is hydrogen, Ct-C2 alkyl, or Cl-C2 deuteroalkyl. In some embodiments, R4 is hydrogen, -CH3, -CH2D, -CHD2, or -CD3. In some embodiments, R4 is hydrogen. In some embodiments, R4 is -CH3. In some embodiments, R4 is -CD3.
[00130] In some embodiments, each R" is independently halogen, unsubstituted or substituted C1-C6 alkyl, unsubstituted or substituted CI-Co fluoroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -OR', -C(=0)R', -CO7R16, -C(=0)N(t16)2, _N(tt6)2, _N-Rtoc(_0)R17, _SO2R17, or -SO2N(R16)2. In some embodiments, each R13 is independently halogen, unsubstituted or substituted CI-C6 alkyl, unsubstituted or substituted Ci-C6 fluoroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -C(=0)106, -CO2R'6, or -C(=0)N(R16)2. In some embodiments, each R"
is independently halogen, Cl-C6 alkyl, Cl-C6 fluoroalkyl, C3-C6 cycloalkyl, 4-to 6-membered heterocycloalkyl, -C(=0)R16, _CO2R16, or -C(=0)N(R16)2. In some embodiments, each R13 is independently halogen, CI-Ca alkyl, or Ci-Cafluoroalkyl. In some embodiments, each R13 is independently -F, -Cl, -CH3, or -CF3.
[00131] In some embodiments, q is 0, 1, 2, 3, or 4. In some embodiments, q is 0, 1, 2, or 3. In some embodiments, q is 1, 2, or 3. In some embodiments, q is 1 or 2. In some embodiments, q is 1. In some embodiments, q is 2. In some embodiments, q is 0; and Ring B is therefore unsubstituted.
[00132] In some embodiments, R2 is -C(=0)R14, -Q=0)N-Ri4Ri5, or -C(=0)0R14.
[00133] In some embodiments, R2 is -C(=0)R14.
[00134] In some embodiments, R2 is -C(=0)NR14IC-rs 15 or -C(=0)01t44.
[00135] In some embodiments, the compound is a compound of Formula (IX), Formula (X), or Formula (XI):

Fit Rt NH NH
Bt I _r Nlj (R7R) 0 R14 n (R7 0 NRi 4 n ;
A' n Al /N- , A9 410 Alik2 R15 A80.' 0 A6 As A6 Formula (IX) Formula (X) N H
N
H N B2-1. N R1 ( R6 n 0 0 tek-As As Formula (XI) or a pharmaceutically acceptable salt, tautomer, or solvate thereof; wherein A', Az, A6, A7, As, and A9 are as defined herein.
[00136] In some embodiments, (i) Al and A2 are each C; and A6, A', A8, and A9 are each independently CR8 or N;
(ii) Al is N; A2 is C; A6, A7, and A8 are each independently CR8 or N; and A9 is C(-0);
(iii) Al is C; A2 is N; A6 is C(=0), and A7, A8, and A9 are each independently CR8 or N, or (iv) A' and A2 are each C; one of A6, A7, PO, and A9 is NW, wherein A6, A7, A8, or A9 adjacent to the Nits is C(=0) and the remaining members of A6, A7, A8, and A9 are each independently CR8 or N.
[00137] In some embodiments, the compound is a compound of Formula (IX), or a pharmaceutically acceptable salt, tautomer, or solvate thereof In some embodiments, the compound is a compound of Formula (X), or a pharmaceutically acceptable salt, tautomer, or solvate thereof. In some embodiments, the compound is a compound of Formula (XI), or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[00138] In some embodiments, the compound is a compound of Formula (IXa), Formula (Xa), or Formula (X1a):

R4..NH N H
o , N 0 N
====.I R1 RI

Re 7 -)"-- 0 R = = id (R7) R6 Z ,R

n (Re)p Formula (IXa) Formula (Xa) R4,NH

-( Re n \ R7 0 0 Formula (XIa) or a pharmaceutically acceptable salt, tautomer, or solvate thereof; wherein Ag is Cle or N.
[00139] In some embodiments, the compound is a compound of Formula (IXa), or a pharmaceutically acceptable salt, tautomer, or solvate thereof, In some embodiments, the compound is a compound of Formula (Xa), or a pharmaceutically acceptable salt, tautomer, or solvate thereof In some embodiments, the compound is a compound of Formula (XIa), or a pharmaceutically acceptable salt, tautomer, or solvate thereof, In some embodiments, Ag is CRg.
In some embodiments, Ag is N.
[00140] In some embodiments, the compound is a compound of Formula (IXb), Formula (Xb), or Formula (XIb):

'NH 'NH
B.

HN-1B2.LN- R1 HN
132-"L N-R1 f Re ( Re ,R14 r, kR7 0 R14 n 0 N

(R5)p¨t Formula (IXb) Formula (Xb) -NH
o , N

( Re n R7 it14 (R8) P N
Formula (XIb) or a pharmaceutically acceptable salt, tautomer, or solvate thereof; wherein A8 is CR8 or N.
In some embodiments, the compound is a compound of Formula (IXb), or a pharmaceutically acceptable salt, tautomer, or solvate thereof. In some embodiments, the compound is a compound of Formula (Xb), or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
In some embodiments, the compound is a compound of Formula (Xfb), or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[00141] In some embodiments, the compound is a compound of Formula (IXc), Formula (Xc), or Formula (Mc):

-NH N H
B 1, B 1, H NI B2N, ( R6 ( R6 ,R14 \ R7 0 R i . .d n R7 ON

N N (R8)p N
Formula (IXe) Formula (Xc) Fe NH
B
N

n R7 0 o N N
Formula (XIc) or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
In some embodiments, the compound is a compound of Formula (IXc), or a pharmaceutically acceptable salt, tautomer, or solvate thereof. In some embodiments, the compound is a compound of Formula (Xc), or a pharmaceutically acceptable salt, tautomer, or solvate thereof.

In some embodiments, the compound is a compound of Formula (XIc), or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[00142] In some embodiments, the compound is a compound of Formula (IXd), Formula (Xd), or Formula (XId):
Rt NH RtNH

HNB2N. R1 R

( / R6 R6 ,Ria õ kR7 0 R14 õ N

(R8) N
Formula (IXd) Formula (Xd) R4,NH
B, 0.-1 -1N
HN B2--L,N,R1 ( R6 \ R7 0 0 N
(R8) __ P N
Formula (XId) or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[00143] In some embodiments, the compound is a compound of Formula (IXd), or a pharmaceutically acceptable salt, tautomer, or solvate thereof. Ti' some embodiments, the compound is a compound of Formula (Xd), or a pharmaceutically acceptable salt, tautomer, or solvate thereof In some embodiments, the compound is a compound of Formula (XId), or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[00144] In some embodiments, the compound is a compound of Formula (IXe), Formula (Xe), or Formula (XIe):
R4,NH Rt NH
Ot(13.`1=N 01131 N
HN BN-R1 ,R1 R6 4 R6 , \ R7 0 R-1 r, (z R7 0 R14 N

(R8)__( (118)p __ Re R8 Formula (IXe) Formula (Xe) -NH
o , N
HNBiN"R1 ( R6 1117Z7 0 0R,14 (R8)p-t Formula (XIe) or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[00145] In some embodiments, the compound is a compound of Formula (IXe), or a pharmaceutically acceptable salt, tautomer, or solvate thereof. In some embodiments, the compound is a compound of Formula (Xe), or a pharmaceutically acceptable salt, tautomer, or solvate thereof. In some embodiments, the compound is a compound of Formula (XIe), or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[00146] In some embodiments, R4 is hydrogen, CI-C6 alkyl, CI-C6 deuteroalkyl, or Ci-C6 fluoroalkyl. In some embodiments, le is hydrogen, Cl-C6 alkyl, or Ci-C6 deuteroalkyl. In other embodiments, R4 is hydrogen, CI-Ca alkyl, Ct-Ca deuteroalkyl, or Ct-Ca fluoroalkyl. In some embodiments, R4 is hydrogen, Ci-C4 alkyl, or Ci-C4 deuteroalkyl. In some embodiments, R4 is hydrogen, C1-C2 alkyl, or Ci-C2 deuteroalkyl. In some embodiments, R4 is hydrogen, -CH3, -CH2D, -CHD2, or -CD3. In sonic embodiments, R4 is hydrogen. In some embodiments, R4 is -CH3. In some embodiments, R4 is -CD3.
[00147] In some embodiments, le is hydrogen, CI-C6 alkyl, or Cl-C6 fluoroalkyl. In some embodiments, R1 is hydrogen, C1-C4 alkyl, or Ci-C4 fluoroalkyl. In some embodiments, R1 is hydrogen or CI-C6 alkyl. In some embodiments, R1 is hydrogen or Ci-C4 alkyl.
In some embodiments, R' is hydrogen, methyl, ethyl, propyl, isopropyl, or butyl. In some embodiments, R1 is hydrogen or methyl. In some embodiments, TO is hydrogen. In some embodiments, R1 is methyl.
[00148] In some embodiments, R1 and R15 are taken together with the intervening atoms to which they are attached to form an unsubstituted or substituted 5- or 6-membered monocyclic heterocycle. In some embodiments, R1 and R15 are taken together with the intervening atoms to which they are attached to form an unsubstituted or substituted 5- or 6-membered monocyclic heterocycloalkyl. In some embodiments, R1 and R15 are taken together with the intervening atoms to which they are attached to form an unsubstituted or substituted 5-membered monocyclic heterocycle. In some embodiments, R1 and R15 are taken together with the intervening atoms to which they are attached to form an unsubstituted or substituted 5-m emb ered m on ocy cl i c heterocycl oal kyl .
[00149] In some embodiments, le is hydrogen.
[00150] In some embodiments, R" is hydrogen, unsubstituted or substituted CI-C6 alkyl, Ci-C6 deuteroalkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Ci-C6 heteroalkyl, unsubstituted or substituted monocyclic carbocycle, unsubstituted or substituted bicyclic carbocycle, unsubstituted or substituted monocyclic heterocycle, or unsubstituted or substituted bicyclic heterocycle In some embodiments, R14 is unsubstituted or substituted Ci-C6 alkyl, Ci-C6 deuteroalkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Ci-C6 heteroalkyl, unsubstituted or substituted monocyclic carbocycle, unsubstituted or substituted bicyclic carbocycle, unsubstituted or substituted monocyclic heterocycle, or unsubstituted or substituted bicyclic heterocycle In some embodiments, R" is unsubstituted or substituted Cl-C6 alkyl, Cl-C6 deuteroalkyl, unsubstituted or substituted Cl-C6 heteroalkyl, unsubstituted or substituted C3-C6 cycloalkyl, or unsubstituted or substituted 4- to 6-membered heterocycloalkyl.
[00151] In some embodiments, R" is hydrogen, unsubstituted or substituted CI-C6 alkyl, un substituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Cl-C6 heteroalkyl, unsubstituted or substituted monocyclic carbocycle, unsubstituted or substituted bicyclic carbocycle, unsubstituted or substituted monocyclic heterocycle, or unsubstituted or substituted bicyclic heterocycle.
In some embodiments, it'4 is unsubstituted or substituted Ci-C6 alkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Ci-C6 heteroalkyl, unsubstituted or substituted monocyclic carbocycle, unsubstituted or substituted bicyclic carbocycle, unsubstituted or substituted monocyclic heterocycle, or unsubstituted or substituted bicyclic heterocycle. In some embodiments, R" is unsubstituted or substituted CI-C6 alkyl, unsubstituted or substituted Ci-C6 heteroalkyl, unsubstituted or substituted C3-C6 cycloalkyl, or unsubstituted or substituted 4- to 6-membered heterocycloalkyl.
[00152] In some embodiments, R1-4 is unsubstituted or substituted C1-C6 alkyl, Ci-C6 dcutcroalkyl, unsubstituted or substituted C3-C6 cycloalkyl, or unsubstituted or substituted 4- to 6-membered heterocycloalkyl; wherein the substituted alkyl, substituted heteroalkyl, substituted cycloalkyl, or substituted heterocycloalkyl is substituted with one or more Rs groups. In some embodiments, It'4 is unsubstituted or substituted C1-C6 alkyl, unsubstituted or substituted C3-C6 cycloalkyl, or unsubstituted or substituted 4- to 6-membered heterocycloalkyl;
wherein the substituted alkyl, substituted heteroalkyl, substituted cycloalkyl, or substituted heterocycloalkyl is substituted with one or more Rs groups. In some embodiments, R" is unsubstituted or substituted Ci-C6 alkyl, Cl-C6 deuteroalkyl, unsubstituted or substituted C3-C6 cycloalkyl, or unsubstituted or substituted 4- to 6-membered heterocycloalkyl; wherein the substituted alkyl, substituted heteroalkyl, substituted cycloalkyl, or substituted heterocycloalkyl is substituted with one or more RS groups independently selected from the group consisting of deuterium, halogen, Ci-C6 alkyl, -CN, -OR', and -N(R')2. In some embodiments, R1/ is unsubstituted or substituted CI-Cs alkyl, unsubstituted or substituted C3-C6 cycloalkyl, or unsubstituted or substituted 4- to 6-membered heterocycloalkyl; wherein the substituted alkyl, substituted heteroalkyl, substituted cycloalkyl, or substituted heterocycloalkyl is substituted with one or more Rs groups independently selected from the group consisting of deuterium, halogen, CI-C6 alkyl, -CN, -0R18, and -N(R18)2. In some embodiments, R14 is unsubstituted or substituted Ci-C6 alkyl, unsubstituted or substituted C3-C4 cycloalkyl, or unsubstituted or substituted 4-membered heterocycloalkyl; wherein the substituted alkyl, substituted heteroalkyl, substituted cycloalkyl, or substituted heterocycloalkyl is substituted with one or more R5 groups independently selected from the group consisting of deuterium, halogen, -CN, -NH2, -OH, -NH(CH3), -N(CH3)2, -CH3, -CH2CH3, -CHF2, -CF3, -OCH3, -OCHF2, and -0CF3 In some embodiments, R" is methyl, -CD3, \1-1 /..4;
ethyl, isopropyl, t-butyl, cyclopropyl, cyclobutyl, azetidinyl, oxetanyl, /
f(v.,F As .0F /Icy/ F /(vsõF se,44 õ04,1<?H
V
N) CF3 . In some embodiments, R14 is methyl, -CD3, ethyl, tk.iv0H Ary isopropyl, t-butyl, cyclopropyl, cyclobutyl, azetidinyl, oxetanyl, sõF AvsoF F ./(v.õF F ##(,<C2H
, or if(t\N`== In some embodiments, R14 is methyl, ethyl, isopropyl, t-butyl, cyclopropyl, azetidinyl, oxetanyl, /4.,<DH iecc\N
, or [00153] In some embodiments, when R2 is -C(-0) Nitta¨

K
R14 and R' are taken together with the intervening atoms to which they are attached to form an unsubstituted or substituted 4- to 6-membered monocyclic heterocycle. In some embodiments, R14 and R15 are taken together with the intervening atoms to which they are attached to form an unsubstituted or substituted 4- to 6-membered monocyclic heterocycloalkyl.
[00154] In some embodiments, B1 is CR12a; and B2 is CR12b; or B1 is N; and B2 is CR12b; or B1 is CR12'; and B2 is N; or B1 is N; and B2 is N. In some embodiments, B1 is CR12a; and B2 is cRim. In some embodiments, B1 is N; and B2 is CR12b. In some embodiments, B1 is CR12a; and B2 is N. In some embodiments, B1 is N; and B2 is N.
[00155] In some embodiments, B1 is CR12a; and B2 is CR' 2b; or Ti1 is N; and B2 is CR12b.
[00156] In some embodiments, R12a and R121) are each independently hydrogen, halogen, unsubstituted or substituted C1-C6 alkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-Co alkynyl, unsubstituted or substituted CI-Co fluoroalkyl, unsubstituted or substituted C1-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -OR', -C(=0)R', -CO2R', -C(=0)N(R16)2, -N(RI6)2, -NRi6c(_o)R17, _sRio, _s(_0)R17, _s02--rc17, or -SO2N(R16)2 [00157] In some embodiments, R12 and R12b are each independently hydrogen, halogen, Cl-C6 alkyl, C,-C6 fluoroalkyl, -CN, -OH, -0R17, -CO2R16, -C(=0)N(R16)2, -N(R16)2, -SO2R17, or -SO2N(R16)2. In some embodiments, R12a and R121' are each independently hydrogen, halogen, Ci-05 alkyl, C,-C6 fluoroalkyl, -CN, -OH, -C(=0)N(R16)2, -N 006)2, or -SO2N(R16)2. In some embodiments, and R12h are each independently hydrogen, halogen, C,-C6 alkyl, C,-C6 fluoroalkyl, -CN, -OH, -0R17, or -N(R16)2. In some embodiments, R12a and R12b are each independently hydrogen, halogen, CI-C4 alkyl, Cl-C4 fluoroalkyl, -CN, -OH, -0R17, or -N(R16)2.
In some embodiments, R12 and R12b are each independently hydrogen, halogen, Ci-C4 alkyl, Cl-C4 fluoroalkyl, or -CN. In some embodiments, R12a and R12" are each independently hydrogen, halogen, or -CN. In some embodiments, R123 and RITh are each independently hydrogen or halogen. In some embodiments, R12a and R12b are each independently hydrogen, fluoro, or chloro. In some embodiments, R12a and R12b are each independently hydrogen or fluoro. In some embodiments, RI-2a and Rilb are each hydrogen.
[00158] In some embodiments, B1 and B2 are each independently CH, CF, or N. In some embodiments, B1 and B2 are each independently CH or N.
[00159] In some embodiments, B1 is CH or CF; and B2 is CH or CF; or BI- is N;
and B2 is CH
or CF; or B1 is CH or CF; and B2 is N; or B1 is N; and B2 is N. In some embodiments, BI is CH;
and B2 is CH; or B1 is N; and B2 is CH; or B1 is CH; and B2 is N; or B1 is N;
and B2 is N.
[00160] In some embodiments, R3 and R12' are taken together with the intervening atoms to which they are attached to form a substituted or unsubstituted 5- or 6-membered heterocycle. In some embodiments, R3 and R12a are taken together with the intervening atoms to which they are attached to form a substituted or unsubstituted 5-membered heterocycle. In some embodiments, R3 and R1-2 are taken together with the intervening atoms to which they are attached to form a R4, ,R3 õ
N R
C31,L
B2' 7 substituted or unsubstituted pyrazolidinone ring. In some embodiments, is sN¨NH N R
I N
I I
V-'62-- 7 B2- 7 . In some embodiments, is RIn some R4õR3 NR12 sN¨NH

ONI I

embodiments, is [00161] In some embodiments, the compound is a compound of Formula (XII):

N¨NH
ON

H

r, 'Al , A

e e Formula (XII) or a pharmaceutically acceptable salt, tautomer, or solvate thereof; wherein Al, Az, A6, A7, A8, and A9 are as defined herein.
[00162] In some embodiments, (i) A' and A2 are each C; and A6, A', A8, and A9 are each independently CR8 or N;
(ii) A" is N; A2 is C; A6, A7, and A8 are each independently CR8 or N; and A9 is C(=0);
(iii) is C; A2 is N; A6 is C(=0); and A7, A8, and A9 are each independently CR8 or N;
or (iv) A' and A2 are each C; one of A6, A7, V, and A9 is NR', wherein A6, A7, A8, or A9 adjacent to the NR' is C(=0) and the remaining members of A6, A], A8, and A9 are each independently CR8 or N.
[00163] In some embodiments, le is hydrogen, CI-C6 alkyl, CI-C6 deuteroalkyl, or Ci-C6 fluoroalkyl. In some embodiments, Ie is hydrogen, Cl-C6 alkyl, or Cl-C6 deuteroalkyl. In other embodiments, R4 is hydrogen, Ci-C4 alkyl, Ct-C4 deuteroalkyl, or Ct-C4 fluoroalkyl. In some embodiments, R4 is hydrogen, Ci-C4 alkyl, or Ci-C4 deuteroalkyl. In some embodiments, 114 is hydrogen, CI -C2 alkyl, or C1-C2 deuteroalkyl. In some embodiments, R4 is hydrogen, -CII3, -CH2D, -CHD2, or -CD3. In some embodiments, R4 is hydrogen. In some embodiments, R4 is -CH3. In some embodiments, R4 is -CD3.
[00164] In some embodiments, R2 is a Ring B that is an unsubstituted or substituted heterocycle or unsubstituted or substituted carbocycle, wherein if Ring B is substituted then Ring B is substituted with q instances of R13. In some embodiments, R2 is a Ring B that is an unsubstituted or substituted monocyclic 6-membered heteroaryl, wherein if Ring B is substituted then Ring B
is substituted with q instances of R13. In some embodiments, R2 is a Ring B
that is an unsubstituted or substituted pyridinyl or unsubstituted or substituted pyrimidinyl, wherein if Ring B is substituted then Ring B is substituted with q instances of Rn.
[00165] In some embodiments, R2 is -C(=0)Rm, -C(=0) NRI4R15, or -C(=0)ORN. In some embodiments, R2 is -C(=0)R14.
[00166] In some embodiments, each R16 is independently hydrogen, substituted or unsubstituted Ci-C6 alkyl, substituted or unsubstituted Ci-C6 fluoroalkyl, substituted or unsubstituted Ci-Cs heteroalkyl, substituted or unsubstituted C3-C7 cycloalkyl, or substituted or unsubstituted monocyclic 3- to 8-membered heterocycloalkyl; or two R16 on the same N atom are taken together with the N atom to which they are attached to form a substituted or unsubstituted N-containing heterocycloalkyl. In some embodiments, each R16 is independently hydrogen, CI-C6 alkyl, C1-C6 fluoroalkyl, Cl-C6 heteroalkyl, C3-C7 cycloalkyl, or monocyclic 3-to 8-membered heterocycloalkyl; or two R15 on the same N atom are taken together with the N
atom to which they are attached to form a 4- to 6-membered N-containing heterocycloalkyl.
[00167] In some embodiments, each R'7 is independently substituted or unsubstituted Ci-Cs alkyl, substituted or unsubstituted Ci-C6 fluoroalkyl, substituted or unsubstituted Ci-C6 heteroalkyl, substituted or unsubstituted C3-C7 cycloalkyl, or substituted or unsubstituted monocyclic 3- to 8-membered heterocycloalkyl. In some embodiments, each R17 is independently Cl-C6 alkyl, CI-Cs fluoroalkyl, Ci-C6 heteroalkyl, C3-C7 cycloalkyl, or monocyclic 3- to 8-membered heterocycloalkyl.
[00168] In some embodiments, compounds described herein have the following structure:

HN
o- 0 HN N õR2 R6 z i=

A Pat2 (R8)) [00169] In some embodiments, F1', R2, R4, Z, n, R6, R7, A4, A2, Ring A, le and p are as 3 b Al \

described herein. In some embodiments, BI-, R2, R4, z, n, R6, R7, and (R8) are as described herein. In some embodiments, BI-, R2, ¨4, K Z, n, R6, R7, Al, A2, Ring A, Rg and p are as a b Al \
A
described in Table 1. In some embodiments, B4, R2, R4, ¨, n, R6, R7, and (R8) are as described in Table 1.
[00170] Any combination of the groups described above for the various variables is contemplated herein. Throughout the specification, groups and sub stituents thereof are chosen by one skilled in the field to provide stable moieties and compounds.
[00171] Exemplary compounds described herein include the compounds described in the following Tables:
Table 1:
,R4 HN

HN N ,R2 1R6' Al 140 C2)A):
A
(R8)p a b Cpd No. 13' R2 R4 Z
R6 R n A
(R8)p 0 a¨

b N
a F
r Y

\ b N

3 CH \--kv -CD3 NCH3 H H 1 a&\ b N

4 CH \<-11--,v -CD3 NCH3 H H 1 a7Y\ b N N

CH \-.11,õv -CD3 NCH3 H H 1 b N

6 N -CD3 NCH3 H H 1 a I b N N

7 N -CD3 NCH3 H H 1 aZ;)µ b N
0 a 8 CH \,-*,v -CD3 NCH3 H H 1 NTTA b ftrµj 9 CH \J-1-,v. -CD3 NCH3 H H 1 b a¨^7 b Cpd No. 13' R2 R4 Z
R6 127 n A
(R8)p a N .""Ab 11 N -CD3 NCH3 H H 1 a b a b NC
a ¨

N
NC
O a 14 CH vky -CD3 NCH3 H H 1 b O a 15 CH Nc.)1,,,v -CH3 NCH3 H H 1 I b O a 16 N -CD3 NCH3 _______________ H H 1 NTTA b O a 17 CH viLv -CD3 NCD3 H H 1 NI-TA b N
O a N b a -^7 b Cpd No. 13' R2 R4 Z
R6 127 n A
(R8)p 0 a ¨

b N
a _ \b N

:
21 N Nc.)-1. -CD3 NCH3 D D 1 &µ b F N

a 22 CH \\,,,ILv -CD3 NCH3 D D 1 6) b F N
a a 24 CH \--11.,y - CD3 NCH3 D D 1 7Yµb N
0 a 25 CH \icy - CD3 NCH3 D

N

a 26 N \icy. -CD3 NCH3 D D 1 I -õI*N

a bN, Cpd No. 13' R2 R4 Z R6 127 n A
(R8)p 27 N -CD3 NCH3 H H 1 a TIA b N,N 0 28 CH \\):1, -CD3 NCH3 H H 1 a 7171A b N,N 0 O a 29 N \-11, -CH3 NCH3 H H 1 I b O a 30 CH \--11-"v -CH3 NCH3 H H 1 Nyi. b a O a 32 N -CD3 NCH3 (R)-CH3 H 1 µb N
O a ¨
33 N -CD3 NCH3 (S)-CH3 H 1 b 1001721 Compounds in Table 1 are named:
1: 6-(cyclopropanecarboxamido)-N-(methyl-d3)-4-((6-methy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-y1)amino)pyridazine-3-carboxamide;
2: 6-((5-fluoropyridin-2-yl)amino)-N-(methyl-d3)-4-46-methyl-5,6-dihydrobenzo[h][1,6]naphthyridin-7-yl)amino)pyridazine-3-carboxamide; and 3: 6-(cyclopropanecarboxamido)-N-(methyl-d3)-4((6-methy1-5, 6-dihydrobenzo[h] [1 ,6]naphthyri di n-7-y1 )amino)ni cotinami de;
4: 6-(cyclopropanecarboxamido)-N-(methyl-d3)-44(6-methy1-5,6-dihydropyrimido[5,4-c]quinolin-7-yl)amino)nicotinamide;

5: 6-(cyclopropanecarboxamido)-4-((3 -fluoro-6-methyl-5 ,6-dihydrobenzo[h] 11 ,6]naphthyri din-7-yl)amino)-N-(methyl -d3 )nicotinamide;

6: 6-(cyclopropanecarboxamido)-N-(methyl-d3)-44(6-methy1-5,6-dihydropyrimido[5,4-c]quinolin-7-yl)amino)pyridazine-3 -carboxamide;

7: 6-(cyclopropanecarboxamido)-4-((3 -fluoro-6-methyl-5 ,6-dihydrobenzo[h] [I
,6]naphthyri din-7-yl)amino)-N-(methyl -d3 )pyri dazine-3-carboxamide;

8: 6-(cy clopropanecarb oxami do)-N-(m ethyl -d3)-44(6-methy1-5, 6-dihydropyrazino[2,3-c]quinolin-7-yl)amino)nicotinamide;

9: 6-(cyclopropanecarboxamido)-442,6-dimethy1-1-oxo-1,2,5,6-tetrahydrobenzo[c][2,6]naphthyridin-7-yl)amino)-N-(methyl-d3)nicotinamide;

10: 6-(cy clopropanecarboxamido)-N-(methyl-d3 )-4((6-methy1-5,6-di hydropyrazino [2,3 -c]quinolin-7-yl)amino)pyridazine-3 -carboxamide;

11: 6-(cy clopropanecarboxamido)-4-42,6-dimethyl -1 -oxo-1,2,5,6-tetrahydroben zo[c] [2,6]n aphthyri di n -7-y1 )ami no)-N-(m ethyl -d3)pyri dazi ne-3 -carboxam i de;

12: 4-((3-cyano-6-methyl-5,6-dihydrobenzo[h][ 1, 6]naphthyridin-7-yl)amino)-6-(cyclopropanecarb oxamido)-N-(methyl-d3)nicotinamide;

13: 4-((3-cyano-6-methyl-5,6-dihydrobenzo[h][ 1, 6]naphthyridin-7-yl)amino)-6-(cyclopropanecarb oxami do)-N-(methyl-d3)pyridazi ne-3 -carboxamide;

14: 6-(cy clopropanecarboxamido)-N-(methyl-d3 )-4((6-methy1-5,6-di hydropyrazino [2,3 -c] [1, 7]naphthyridin-7-yl)amino)nicotinamide;

15: 6-(cy clopropanecarboxamido)-N-methy1-4-((6-methyl- 5,6-dihydrobenzo[h] 11,61naphthyridin-7-yl)amino)nicotinamide;

16: 6-(cy clopropanecarboxamido)-N-(methyl-d3 )-4((6-methy1-5,6-di hydropyrazino [2,3 -c]quinolin-7-yl)amino)pyridazine-3 -carboxamide;

17: 6-(cy clopropanecarboxamido)-N-(methyl-d3 )-44(6-(m ethyl-d3)-5,6-dihy dropyrazino 12,3 -c]quinolin-7-yl)amino)nicotinamidc;

18: 6-(cy clopropanecarboxamido)-N-(methyl-d3)-4-((6-(methyl-d3)-5,6-dihy dropyrazino [2,3 -c]quinolin-7-yl)amino)pyridazine-3 -carboxamide;

19: 6-(cy clopropanecarboxamido)-N-(methyl-d3 )-4-((6-methyl-5,6-di hydropyrido [3 ,4-1-1] [1 ,6]naphthyri di n-7-y1 )amino)ni cotinami de;

20: 6-(cy clopropanecarboxamido)-N-(methyl-d3)-4-((6-methy1-5,6-dihydrobenzo[h] [1,6]naphthyri di n-7-y1-5,5-d2)am ino)ni cotinami de;

21: 6-(cyclopropanecarboxamido)-4-43-fluoro-6-methyl-5,6-dihydrobenzo[h][1,6]naphthyridin-7-y1-5,5-d2)amino)-N-(methyl-d3)pyridazine-3-carboxamide;

22: 6-(cyclopropanecarboxamido)-4-((3-fluoro-6-methy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-y1-5,5-d2)amino)-N-(methyl-d3)nicotinamide;

23: 6-(cyclopropanecarboxamido)-4-((2,6-dimethy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-yl-5,5 -d2)amino)-N -(methyl-d3)pyri dazine-3 -carboxami de;

24: 6-(cyclopropanecarboxamido)-4-((2,6-dimethy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-y1-5,5-d2)amino)-N-(methyl-d3)nicotinamide;

25: 6-(cyclopropanecarboxamido)-N-(methyl-d3)-44(6-methy1-2-(trifluoromethyl)-5,6-dihydrobenzo[h][1,6]naphthyridin-7-y1-5,5-d2)amino)nicotinamide;

26: 6-(cyclopropanecarboxamido)-N-(methyl-d3)-44(6-methy1-2-(trifluoromethyl)-5,6-dihydrobenzo[h][1,6]naphthyridin-7-y1-5,5-d2)amino)pyridazine-3 -carboxamide;

27: 6-(cyclopropanecarboxamido)-4-((2,6-dimethyl-1-oxo-1,2,5,6-tetrahydropyridazino[4,5-c]quinolin-7-yl)amino)-N-(methyl-d3)pyridazine-3-carboxamide;

28: 6-(cyclopropanecarboxamido)-4-42,6-dimethyl-l-oxo-1,2,5,6-tetrahydropyridazino[4,5-c]qui n ol n -7-y1 )am i no)-N-(ni ethyl -d3)ni coti nami de;

29: 6-(cyclopropanecarboxamido)-N-methyl-4-((6-methy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-yl)amino)pyridazine-3-carboxamide;

30: 6-(cyclopropanecarboxamido)-N-methyl-4-((6-methy1-5,6-dihydropyrazino[2,3-c]quinolin-7-yl)amino)nicotinamide;

31: 6-(cyclopropanecarboxamido)-4-((10-fluoro-5-methy1-5,6-dihydrophenanthridin-4-yDamino)-N-(methyl-d3)pyridazine-3-carboxamide;

32: (R)-6-(cyclopropanecarboxamido)-445,6-dimethy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-yl)amino)-N-(methyl-d3)pyridazine-3-carboxamide;

33: (S)-6-(cyclopropanecarboxamido)-4-((5,6-dimethy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-yl)amino)-N-(methyl-d3)pyridazine-3-carboxamide.
[00173] In some embodiments, provided herein is a pharmaceutically acceptable salt of a compound that is described in Table 1.
[00174] In another aspect of the invention, the compound is a compound selected from:
3: 6-(cyclopropanecarboxamido)-N-(methyl-d3)-4-((6-methy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-y1)amino)nicotinamide;
15: 6-(cyclopropanecarboxamido)-N-methy1-4-((6-methy1-5,6-dihydrobenzo[h][1,61naphthyridin-7-y1)amino)nicotinamide;

34: 6-(cyclopropanecarboxamido)-4-((2,5-dimethy1-4,5-dihydro-2H-pyrazolo[4,3-c]quinolin-6-yl)ami no)-N-m ethyl pyri dazine-3 -carboxami de;

35: 442,5-dimethy1-4,5-dihydro-2H-pyrazolo[4,3-c]quinolin-6-yl)amino)-645-fluoropyridin-2-yl)amino)-N-methylnicotinamide;

36: 442,5-dimethy1-4,5-dihydro-2H-pyrazolo[4,3-c]quinolin-6-yl)amino)-6-((2,6-dimethylpyrimidin-4-y1)amino)-N-methylnicotinamide;

37: 6-(cyclopropanecarboxamido)-4-((2,5-dimethy1-4,5-dihydro-2H-[1,2,3]triazolo[4,5-c]quinolin-6-yl)amino)-N-methylnicotinamide; and

38: 6-(cyclopropanecarboxamido)-4-((2,5-dimethy1-4,5-dihydropyrazolo[1,5-a]quinoxalin-6-yl)amino)-N-methylpyridazine-3-carboxamide;
or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
[00175] In some embodiments, the compound is 6-(cyclopropanecarboxamido)-N-(methyl-d3)-4-((6-methy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-yl)amino)nicotinamide (Compound 3), which has the following structure:
NI

D3C,NA'-e'', 0 H
N N
[00176] In some embodiments, the compound is 6-(cyclopropanecarboxamido)-N-methy1-4-((6-methy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-y1)amino)nicotinamide (Compound 15), which has the following structure:
NI

I
N 1.1-)Cv [00177] In some embodiments, the compound is 6-(cyclopropanecarboxamido)-4-((2,5-dimethy1-4,5-dihydro-2H-pyrazolo [4,3 -c]quinolin-6-yl)amino)-N-methylpyridazine-3 -carboxami de (Compound 34), which has the following structure.

O HN

NNN
[00178] In some embodiments, the compound is 4-((2,5-dimethy1-4,5-dihydro-2H-pyrazolo[4,3-c]quinolin-6-yl)amino)-645-fluoropyridin-2-y1)amino)-N-methylnicotinamide (Compound 35), which has the following structure:
O HN
N
H
[00179] In some embodiments, the compound is 44(2,5-dimethy1-4,5-dihydro-2H-pyrazolo[4,3-c]quinolin-6-yl)amino)-642,6-dimethylpyrimidin-4-y1)amino)-N-methylnicotinamide (Compound 36), which has the following structure:
O HN
NN
N N
[00180] In some embodiments, the compound is 6-(cyclopropanecarboxamido)-4-((2,5-dimethy1-4,5-dihydro-2H41,2,3]triazolo[4,5-c]quinolin-6-yDamino)-N-methylnicotinamide (Compound 37), which has the following structure:
N-N
/
z O HN
'-N-ItTC 0 [00181] In some embodiments, the compound is 6-(cyclopropanecarboxamido)-4-((2,5-dim ethyl -4,5-di hydropyrazol o[1,5-a] qui n oxali n-6 -yl)am i no)-N-m ethylpyri dazi ne-3-carboxamide (Compound 38), which has the following structure:
rels1 H
N N
[00182] In one aspect, compounds described herein are in the form of pharmaceutically acceptable salts. In addition, the compounds described herein can exist in unsolvated as well as solvated forms with pharmaceutically acceptable solvents such as water, ethanol, and the like.
The solvated forms of the compounds presented herein are also considered to be disclosed herein.
[00183] "Pharmaceutically acceptable," as used herein, refers a material, such as a carrier or diluent, which does not abrogate the biological activity or properties of the compound, and is relatively nontoxic at the concentration or amount used, i.e., the material is administered to an individual without causing undesirable biological effects or interacting in a deleterious manner with any of the components of the composition in which it is contained.
[00184] The term "pharmaceutically acceptable salt" refers to a form of a therapeutically active agent that consists of a cationic form of the therapeutically active agent in combination with a suitable anion, or in alternative embodiments, an anionic form of the therapeutically active agent in combination with a suitable cation. Handbook of Pharmaceutical Salts:
Properties, Selection and Use. International Union of Pure and Applied Chemistry, Wiley-VCH 2002.
S.M. Berge, L.D. Bighley, D.C. Monkhouse, J. Pharm. Sci. 1977, 66, 1-19. P. H. Stahl and C. G. Wermuth, editors, Handbook of Pharmaceutical Salts: Properties, Selection and Use, WeinheimiZurich:Wiley-VCH/VHCA, 2002. Pharmaceutical salts typically are more soluble and more rapidly soluble in stomach and intestinal juices than non-ionic species and so are useful in solid dosage forms. Furthermore, because their solubility often is a function of pH, selective dissolution in one or another part of the digestive tract is possible and this capability can be manipulated as one aspect of delayed and sustained release behaviors.
Also, because the salt-forming molecule can be in equilibrium with a neutral form, passage through biological membranes can be adjusted.
[00185] In some embodiments, pharmaceutically acceptable salts are obtained by reacting a compound of Formula (I) with an acid. In some embodiments, the compound of Formula (I) (i.e.

free base form) is basic and is reacted with an organic acid or an inorganic acid. Inorganic acids include, but are not limited to, hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid, nitric acid, and metaphosphoric acid. Organic acids include, but are not limited to, 1-hydroxy-2-naphthoic acid; 2,2-dichloroacetic acid; 2-hydroxyethanesulfonic acid; 2-oxoglutaric acid; 4-acetamidobenzoic acid; 4-aminosalicylic acid; acetic acid; adipic acid; ascorbic acid (L);
aspartic acid (L); benzenesulfonic acid; benzoic acid; camphoric acid (+);
camphor-10-sulfonic acid (+); capric acid (decanoic acid); caproic acid (hexanoic acid); caprylic acid (octanoic acid);
carbonic acid; cinnamic acid; citric acid; cyclamic acid; dodecylsulfuric acid; ethane-1,2-disulfonic acid; ethanesulfonic acid; formic acid; fumaric acid; galactaric acid; gentisic acid;
glucoheptonic acid (D); gluconic acid (D); glucuronic acid (D); glutamic acid;
glutaric acid;
glycerophosphoric acid; glycolic acid; hippuric acid; isobutyric acid; lactic acid (DL);
lactobionic acid; lauric acid; maleic acid; malic acid (- L); malonic acid;
mandelic acid (DL);
methanesulfonic acid; naphthalene-1,5-disulfonic acid; naphthalene-2-sulfonic acid; nicotinic acid; oleic acid; oxalic acid; palmitic acid; pamoic acid; phosphoric acid;
proprionic acid;
pyroglutamic acid (- L); salicylic acid; sebacic acid; stearic acid; succinic acid; sulfuric acid;
tartaric acid (+ L); thiocyanic acid; toluenesulfonic acid (p); and undecylenic acid.
[00186] In some embodiments, a compound of Formula (I) is prepared as a chloride salt, sulfate salt, bromide salt, rn esyl ate salt, maleate salt, citrate salt or phosphate salt [00187] In some embodiments, pharmaceutically acceptable salts are obtained by reacting a compound of Formula (I) with a base. In some embodiments, the compound of Formula (I) is acidic and is reacted with a base. In such situations, an acidic proton of the compound of Formula (I) is replaced by a metal ion, e.g., lithium, sodium, potassium, magnesium, calcium, or an aluminum ion. In some cases, compounds described herein coordinate with an organic base, such as, but not limited to, ethanolamine, diethanolamine, triethanolamine, tromethamine, meglumine, N-methylglucamine, dicyclohexylamine, tris(hydroxymethyl)methylamine. In other cases, compounds described herein form salts with amino acids such as, but not limited to, arginine, lysine, and the like. Acceptable inorganic bases used to form salts with compounds that include an acidic proton, include, but are not limited to, aluminum hydroxide, calcium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium hydroxide, lithium hydroxide, and the like. In some embodiments, the compounds provided herein are prepared as a sodium salt, calcium salt, potassium salt, magnesium salt, meglumine salt, N-methylglucamine salt or ammonium salt.
[00188] It should be understood that a reference to a pharmaceutically acceptable salt includes the solvent addition forms. In some embodiments, solvates contain either stoichiometric or non-stoichiometric amounts of a solvent, and are formed during the process of crystallization with pharmaceutically acceptable solvents such as water, ethanol, and the like.
Hydrates are formed when the solvent is water, or al coholates are formed when the solvent is alcohol Solvates of compounds described herein are conveniently prepared or formed during the processes described herein. In addition, the compounds provided herein optionally exist in unsolvated as well as solvated forms.
[00189] The methods and formulations described herein include the use of N-oxides (if appropriate), or pharmaceutically acceptable salts of compounds having the structure of Formula (I), as well as active metabolites of these compounds having the same type of activity.
[00190] In some embodiments, sites on the organic radicals (e.g. alkyl groups, aromatic rings) of compounds of Formula (I) are susceptible to various metabolic reactions.
Incorporation of appropriate substituents on the organic radicals will reduce, minimize or eliminate this metabolic pathway. In specific embodiments, the appropriate substituent to decrease or eliminate the susceptibility of the aromatic ring to metabolic reactions is, by way of example only, a halogen, deuterium, an alkyl group, a haloalkyl group, or a deuteroalkyl group.
[00191] In another embodiment, the compounds described herein are labeled isotopically (e.g.
with a radioisotope) or by another other means, including, but not limited to, the use of chromophores or fluorescent moieties, bioluminescent labels, or chemiluminescent labels.
[00192] Compounds described herein include i sotopically-labeled compounds, which are identical to those recited in the various formulae and structures presented herein, but for the fact that one or more atoms are replaced by an atom having an atomic mass or mass number different from the atomic mass or mass number usually found in nature. Examples of isotopes that can be incorporated into the present compounds include isotopes of hydrogen, carbon, nitrogen, oxygen, sulfur, fluorine chlorine, iodine, phosphorus, such as, for example, 2H, 3H, 13C, 14C, '5N, 180, 170, 35s, 18F, 36C1, 1231, 1241, 1251, 1311, 32F and 33P. In one aspect, isotopically-labeled compounds described herein, for example those into which radioactive isotopes such as 3H and 14C are incorporated, are useful in drug and/or substrate tissue distribution assays. In one aspect, substitution with isotopes such as deuterium affords certain therapeutic advantages resulting from greater metabolic stability, such as, for example, increased in vivo half-life or reduced dosage requirements.
[00193] In some embodiments, the compounds of Formula (I) posscss one or more stereocenters and each stereocenter exists independently in either the R or S
configuration. In some embodiments, the compound of Formula (I) exists in the R configuration.
In some embodiments, the compound of Formula (I) exists in the S configuration. The compounds presented herein include all di astereomeric, individual enantiorners, atropisomers, and epimeric forms as well as the appropriate mixtures thereof. The compounds and methods provided herein include all cis, trans, syn, anti, entgegen (E), and zusammen (Z) isomers as well as the appropriate mixtures thereof.
1001941 Individual stereoisomers are obtained, if desired, by methods such as, stereoselective synthesis and/or the separation of stereoisomers by chiral chromatographic columns or the separation of diastereomers by either non-chiral or chiral chromatographic columns or crystallization and recrystallization in a proper solvent or a mixture of solvents. In certain embodiments, compounds of Formula (I) are prepared as their individual stereoisomers by reacting a racemie mixture of the compound with an optically active resolving agent to form a pair of diastereoisomeric compounds/salts, separating the diastereomers and recovering the optically pure individual enantiomers. In some embodiments, resolution of individual enantiomers is carried out using covalent diastereomeric derivatives of the compounds described herein. In another embodiment, diastereomers are separated by separation/resolution techniques based upon differences in solubility. In other embodiments, separation of stereoisomers is performed by chromatography or by the forming diastereomeric salts and separation by recrystallization, or chromatography, or any combination thereof. Jean Jacques, Andre Collet, Samuel H. Wilen, "Enantiomers, Racemates and Resolutions-, John Wiley And Sons, Inc., 1981. In some embodiments, stereoisomers are obtained by stereoselective synthesis.
[00195] In some embodiments, compounds described herein are prepared as prodnigs A
-prodrug" refers to an agent that is converted into the parent drug in vivo.
Prodrugs are often useful because, in some situations, they are easier to administer than the parent drug. They are, for instance, bioavailable by oral administration whereas the parent is not.
Further or alternatively, the prodrug also has improved solubility in pharmaceutical compositions over the parent drug In some embodiments, the design of a prodnig increases the effective water solubility. An example, without limitation, of a prodrug is a compound described herein, which is administered as an ester (the "prodrug") but then is metabolically hydrolyzed to provide the active entity. A further example of a prodrug is a short peptide (polyaminoacid) bonded to an acid group where the peptide is metabolized to reveal the active moiety. In certain embodiments, upon in vivo administration, a prodrug is chemically converted to the biologically, pharmaceutically or therapeutically active form of the compound. In certain embodiments, a prodrug is enzymatically metabolized by one or more steps or processes to the biologically, pharmaceutically or therapeutically active form of the compound.
1001961 Prodrugs of the compounds described herein include, but are not limited to, esters, ethers, carbonates, thiocarbonates, N-acyl derivatives, N-acyloxyalkyl derivatives, N-alkyloxyacyl derivatives, quaternary derivatives of tertiary amines, N-Mannich bases, Schiff bases, amino acid conjugates, phosphate esters, and sulfonate esters. See for example Design of Prodrugs, Bundgaard, A. Ed., Elseview, 1985 and Method in Enzymology, Widder, K. et al., Ed.; Academic, 1985, vol. 42, p. 309-396; Bundgaard, H. "Design and Application of Prodrugs"
in A Textbook of Drug Design and Development, Krosgaard-Larsen and H.
Bundgaard, Ed., 1991, Chapter 5, p. 113-191; and Bundgaard, H., Advanced Drug Delivery Review, 1992, 8, 1-38, each of which is incorporated herein by reference. In some embodiments, a hydroxyl group in the compounds disclosed herein is used to form a prodrug, wherein the hydroxyl group is incorporated into an acyloxyalkyl ester, alkoxycarbonyloxyalkyl ester, alkyl ester, aryl ester, phosphate ester, sugar ester, ether, and the like. In some embodiments, a hydroxyl group in the compounds disclosed herein is a prodrug wherein the hydroxyl is then metabolized in vivo to provide a carboxylic acid group. In some embodiments, a carboxyl group is used to provide an ester or amide (i.e. the prodrug), which is then metabolized in vivo to provide a carboxylic acid group. In some embodiments, compounds described herein are prepared as alkyl ester prodrugs.
[00197] Prodrug forms of the herein described compounds, wherein the prodrug is metabolized in vivo to produce a compound of Formula (I) as set forth herein are included within the scope of the claims. In some cases, some of the herein-described compounds is a prodrug for another derivative or active compound.
[00198] In some embodiments, any one of the hydroxyl group(s), amino group(s) and/or carboxylic acid group(s) are function alized in a suitable manner to provide a prodmg moiety. In some embodiments, the prodrug moiety is as described above.
[00199] In additional or further embodiments, the compounds described herein are metabolized upon administration to an organism in need to produce a metabolite that is then used to produce a desired effect, including a desired therapeutic effect.
[00200] A "metabolite" of a compound disclosed herein is a derivative of that compound that is formed when the compound is metabolized. The term "active metabolite" refers to a biologically active derivative of a compound that is formed when the compound is metabolized. The term "metabolized," as used herein, refers to the sum of the processes (including, but not limited to, hydrolysis reactions and reactions catalyzed by enzymes) by which a particular substance is changed by an organism. Thus, enzymes may produce specific structural alterations to a compound. For example, cytochrome P450 catalyzes a variety of oxidative and reductive reactions while uridinc diphosphatc glucuronyltransfcrascs catalyze the transfer of an activated glucuronic-acid molecule to aromatic alcohols, aliphatic alcohols, carboxylic acids, amines and free sulfhydryl groups. Metabolites of the compounds disclosed herein are optionally identified either by administration of compounds to a host and analysis of tissue samples from the host, or by incubation of compounds with hepatic cells in vitro and analysis of the resulting compounds.

[00201] In some instances, heterocyclic rings may exist in tautomeric forms.
In such situations, it is understood that the structures of said compounds are illustrated or named in one tautomeric form but could be illustrated or named in the alternative tautomeric foim. The alternative tautomeric forms are expressly included in this disclosure, such as, for example, the structures illustrated below. For example, pyridones could exist in the following tautomeric forms:
OH 0 0 0+ 0" 0 NH N = N+
, and =
; all of which are encapsulated within the group, "substituted pyridines." Similarly, triazolones could exist in the following tautomeric forms, which include zwitterionic forms:

N-N N-N N-N e N-N
,¨OH ¨ )-0 = ¨
HOH
N
, and ; all of which are encapsulated within the group, "substituted 5-membered heteroaryl."
Similarly, pyrazoles, triazoles, pyrimidines, and the like are known to tautomerize; for the purpose of this disclosure, all tautomeric forms (including charged and zwitterionic tautomers) are considered within the scope of the present disclosure.
Synthesis of Compounds [00202] Compounds of Formula (I) described herein are synthesized using standard synthetic techniques or using methods known in the art in combination with methods described herein.
[00203] Unless otherwise indicated, conventional methods of mass spectroscopy, NMR, HPLC
are employed.
[00204] Compounds are prepared using standard organic chemistry techniques such as those described in, for example, March's Advanced Organic Chemistry, 6th Edition, John Wiley and Sons, Inc. Alternative reaction conditions for the synthetic transformations described herein may be employed such as variation of solvent, reaction temperature, reaction time, as well as different chemical reagents and other reaction conditions.
[00205] In some embodiments, compounds described herein are prepared as described in Scheme A.

Scheme A:
NH R4 Rt NH NH

A
CI B2 CI >
_IL R2 a or b Z
k n Z
n A
N
A A
Variables are as defined in Formula (I).
[00206] In some embodiments, nucleophilic substitution of one chloro group of intermediate A
with the free amino group of B affords intermediate C. In some embodiments, for example when intermediate A is a pyridazine compound (BI- = N), this substitution can be carried out with a suitable Lewis acid such as Zn(0Ac)2. In other embodiments, for example when intermediate B
is a pyridine compound (B1 = CH), this substitution is carried out by deprotonation of the amino group with a suitable base, such as LDA. In still other embodiments, intermediate C may be accessed by a cross-coupling reaction of intermediates A and B. Cross-coupling reactions may be organometallic cross-couplings such as Suzuki-Miyaura reactions, Buchwald-Hartwig reactions, Heck reactions, Ullman couplings, Chan-Lam couplings, and the like.
Finally, in some embodiments, intermediate C is converted to the final compound D (e.g., compound 1) via a cross-coupling reaction. Cross-coupling reactions may be organometallic cross-couplings such as Suzuki-Miyaura reactions, Buchwald-Hartwig reactions, Heck reactions, Ullman couplings, Chan-Lam couplings, and the like.
[00207] In some embodiments, compounds are prepared as described in the Examples.
Certain Terminology [00208] Unless otherwise stated, the following terms used in this application have the definitions given below. The use of the term "including" as well as other forms, such as "include", "includes," and "included," is not limiting. The section headings used herein are for organizational purposes only and are not to be construed as limiting the subject matter described.
[00209] As used herein, Cl-C includes Cl-C2, Ci-C3 . . . C,-C. By way of example only, a group designated as "Ci-C6" indicates that there are one to six carbon atoms in the moiety, i.e.
groups containing 1 carbon atom, 2 carbon atoms, 3 carbon atoms or 4 carbon atoms. Thus, by way of example only, "Ci-C4 alkyl" indicates that there are one to four carbon atoms in the alkyl group, i.e., the alkyl group is selected from among methyl, ethyl, propyl, iso-propyl, n-butyl, iso-butylõsec-butyl, and 1-butyl.

[00210] An "alkyl" group refers to an aliphatic hydrocarbon group. The alkyl group is branched or straight chain. In some embodiments, the "alkyl" group has 1 to 10 carbon atoms, i.e. a Ci-Cioalkyl. Whenever it appears herein, a numerical range such as "1 to 10"
refers to each integer in the given range; e.g.,"1 to 10 carbon atoms" means that the alkyl group consist of 1 carbon atom, 2 carbon atoms, 3 carbon atoms, etc., up to and including 10 carbon atoms, although the present definition also covers the occurrence of the term "alkyl" where no numerical range is designated. In some embodiments, an alkyl is a Ci-C6 alkyl. In one aspect the alkyl is methyl, ethyl, propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl, or t-butyl. Typical alkyl groups include, but are in no way limited to, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tertiary butyl, pentyl, neopentyl, or hexyl.
[00211] An "alkylene" group refers to a divalent alkyl radical. Any of the above mentioned monovalent alkyl groups may be an alkylene by abstraction of a second hydrogen atom from the alkyl. In some embodiments, an alkylene is a CI-C6 alkylene. In other embodiments, an alkylene is a Cl-C4a1kylene. Typical alkylene groups include, but are not limited to, -CH2-, -CH2CH2-, -CH2CH2CH2-, -CH2CH2CH2CH2-, and the like. In some embodiments, an alkylene is -CH2-.
[00212] An "alkoxy- group refers to a (alkyl)O- group, where alkyl is as defined herein.
[00213] The term "alkylamine" refers to the ¨N(alkyl)xl-ly group, where x is 0 and y is 2, or where x is 1 and y is 1,01- where x is 2 and y is O.
[00214] An -hydroxyalkyl" refers to an alkyl in which one hydrogen atom is replaced by a hydroxyl. In some embodiments, a hydroxyalkyl is a C1-C4hydroxyalkyl. Typical hydroxyalkyl groups include, but are not limited to, -CH2OH, -CH2CH2OH, -CH2CH2CH2OH, -CH2CH2CH2CH2OH, and the like.
[00215] An "aminoalkyl" refers to an alkyl in which one hydrogen atom is replaced by an amino. In some embodiments, aminoalkyl is a C1-C4aminoalkyl. Typical aminoalkyl groups include, but are not limited to, -CH2NH2, -CH2CH2NH2, -CH2C1-12CH2N112, -CH2CH2CH2CH2NH2, and the like.
[00216] The term "alkenyl" refers to a type of alkyl group in which at least one carbon-carbon double bond is present. In one embodiment, an alkenyl group has the formula ¨C(R)=CR2, wherein R refers to the remaining portions of the alkenyl group, which may be the same or different. In some embodiments, R is H or an alkyl. In some embodiments, an alkenyl is selected from ethenyl (i.e., vinyl), propenyl (i.e., allyl), butenyl, pentenyl, pentadienyl, and the like. Non-limiting examples of an alkenyl group include -CH=CH2, -C(CH3)=CH2, -CH=CHCH3, -C(CH3)=CHCH3, and ¨CH2CH=CH2.
[00217] The term "alkynyl" refers to a type of alkyl group in which at least one carbon-carbon triple bond is present. In one embodiment, an alkenyl group has the formula -C=C-R, wherein R

refers to the remaining portions of the alkynyl group. In some embodiments, R
is H or an alkyl.
In some embodiments, an alkynyl is selected from ethynyl, propynyl, butynyl, pentynyl, hexynyl, and the like. Non-limiting examples of an alkynyl group include -CCH, -CCCH.3 -CCCH2CH3, -CH2CCH.
[00218] The term "heteroalkyl" refers to an alkyl group in which one or more skeletal atoms of the alkyl are selected from an atom other than carbon, e.g., oxygen, nitrogen (e.g. ¨NH-, -N(alkyl)-, sulfur, or combinations thereof. A heteroalkyl is attached to the rest of the molecule at a carbon atom of the heteroalkyl. In one aspect, a heteroalkyl is a Ci-C6heteroa1kyl.
[00219] The term "aromatic" refers to a planar ring having a delocalized 7-electron system containing 4n+2 it electrons, where n is an integer. The term "aromatic"
includes both carbocyclic aryl ("aryl", e.g., phenyl) and heterocyclic aryl (or "heteroaryl"
or "heteroaromatic") groups (e.g., pyridine). The term includes monocyclic or fused-ring polycyclic (i.e., rings which share adjacent pairs of carbon atoms) groups.
[00220] The term "carbocyclic" or "carbocycle" refers to a ring or ring system where the atoms forming the backbone of the ring are all carbon atoms. The term thus distinguishes carbocyclic from "heterocyclic" rings or "heterocycles" in which the ring backbone contains at least one atom which is different from carbon. In some embodiments, at least one of the two rings of a bicyclic carbocycle is aromatic. In some embodiments, both rings of a bicyclic carbocycle are aromatic. Carbocycles include aryls and cycloalkyls.
[00221] As used herein, the term "aryl" refers to an aromatic ring wherein each of the atoms forming the ring is a carbon atom. In one aspect, aryl is phenyl or a naphthyl. In some embodiments, an aryl is a phenyl. In some embodiments, an aryl is a phenyl, naphthyl, indanyl, indenyl, or tetrahydronaphthyl. In some embodiments, an aryl is a Co-Cioaryl.
Depending on the structure, an aryl group is a monoradical or a diradical (i.e., an arylene group).
[00222] The term "cycloalkyl" refers to a monocyclic or polycyclic aliphatic, non-aromatic radical, wherein each of the atoms forming the ring (i.e. skeletal atoms) is a carbon atom. In some embodiments, cycloalkyls are spirocyclic or bridged compounds. In some embodiments, cycloalkyls are optionally fused with an aromatic ring, and the point of attachment is at a carbon that is not an aromatic ring carbon atom. Cycloalkyl groups include groups having from 3 to 10 ring atoms. In some embodiments, cycloalkyl groups are selected from among cyclopropyl, cyclobutyl, cyclopentyl, cyclopentenyl, cyclohexyl, cyclohexenyl, cycloheptyl, cyclooctyl, spiro[2 2]pentyl, norbornyl and bicycle[l 1 1 ]pentyl Tn some embodiments, a cycloalkyl is a C3-05cycloalkyl. In some embodiments, a cycloalkyl is a C3-C4cycloalkyl.
1002231 The term "halo" or, alternatively, "halogen" or "halide" means fluoro, chloro, bromo or iodo. In some embodiments, halo is fluoro, chloro, or bromo.

[00224] The term "fluoroalkyl" refers to an alkyl in which one or more hydrogen atoms are replaced by a fluorine atom. In one aspect, a fluoroalkyl is a Ci-C6fluoroalkyl [00225] The term "heterocycle" or "heterocyclic" refers to heteroaromatic rings (also known as heteroaryls) and heterocycloalkyl rings containing one to four heteroatoms in the ring(s), where each heteroatom in the ring(s) is selected from 0, S and N, wherein each heterocyclic group has from 3 to 10 atoms in its ring system, and with the proviso that any ring does not contain two adjacent 0 or S atoms. Non-aromatic heterocyclic groups (also known as heterocycloalkyls) include rings having 3 to 10 atoms in its ring system and aromatic heterocyclic groups include rings having 5 to 10 atoms in its ring system. The heterocyclic groups include benzo-fused ring systems. Examples of non-aromatic heterocyclic groups are pyrrolidinyl, tetrahydrofuranyl, dihydrofuranyl, tetrahydrothienyl, oxazolidinonyl, tetrahydropyranyl, dihydropyranyl, tetrahydrothiopyranyl, piperidinyl, morpholinyl, thiomorpholinyl, thioxanyl, piperazinyl, aziridinyl, azetidinyl, oxetanyl, thietanyl, homopiperidinyl, oxepanyl, thiepanyl, oxazepinyl, diazepinyl, thiazepinyl, 1,2,3,6-tetrahydropyridinyl, pyrrolin-2-yl, pyrrolin-3-yl, indolinyl, 2H-pyranyl, 4H-pyranyl, dioxanyl, 1,3-dioxolanyl, pyrazolinyl, dithianyl, dithiolanyl, dihydropyranyl, dihydrothienyl, dihydrofuranyl, pyrazolidinyl, imidazolinyl, imidazolidinyl, 3-azabicy clo[3.1.0]hexanyl, 3-azabicyclo[4.1.0]heptanyl, 3H-indolyl, indolin-2-onyl, isoindolin-l-onyl , i soi ndoli onyl , 3,4-di hydroi soqui nol i n-1(2H)-onyl, 3,4-di hydroqui nol i n -2(1H)-onyl, isoindoline-1,3-dithionyl, benzo[d]oxazol-2(3H)-onyl, 1H-benzo[d]imidazol-2(314)-onyl, benzo[d]thiazol-2(3H)-onyl, and quinolizinyl. Examples of aromatic heterocyclic groups are pyridinyl, imidazolyl, pyrimidinyl, pyrazolyl, triazolyl, pyrazinyl, tetrazolyl, fury!, thienyl, isoxazolyl, thiazolyl, oxazolyl, isothiazolyl, pyrrolyl, quinolinyl, isoquinolinyl, indolyl, benzimidazolyl, benzofuranyl, cinnolinyl, indazolyl, indolizinyl, phthalazinyl, pyridazinyl, triazinyl, isoindolyl, pteridinyl, purinyl, oxadiazolyl, thiadiazolyl, furazanyl, benzofurazanyl, benzothiophenyl, benzothiazolyl, benzoxazolyl, quinazolinyl, quinoxalinyl, naphthyridinyl, and furopyridinyl. The foregoing groups are either C-attached (or C-linked) or N-attached where such is possible. For instance, a group derived from pyrrole includes both pyrrol-1-y1 (N-attached) or pyrrol-3-y1 (C-attached). Further, a group derived from imidazole includes imidazol-1-y1 or imidazol-3-y1 (both N-attached) or imidazol-2-yl, imidazol-4-y1 or imidazol-5-yl (all C-attached). The heterocyclic groups include benzo-fused ring systems.
Non-aromatic heterocycles are optionally substituted with one or two oxo (=0) moieties, such as pyrrolidin-2-one. In some embodiments, at least one of the two rings of a bicyclic heterocycle is aromatic. In some embodiments, both rings of a bicyclic heterocycle are aromatic.
[00226] The terms "heteroaryl" or, alternatively, "heteroaromatic" refers to an aryl group that includes one or more ring heteroatoms selected from nitrogen, oxygen and sulfur. Illustrative examples of heteroaryl groups include monocyclic heteroaryls and bicyclic heteroaryls.
Monocyclic heteroaryls include pyridinyl, imidazolyl, pyrimidinyl, pyrazolyl, triazolyl, pyrazinyl, tetrazolyl, furyl, thienyl, isoxazolyl, thiazolyl, oxazolyl, isothiazolyl, pyrrolyl, pyridazinyl, triazinyl, oxadiazolyl, thiadiazolyl, and furazanyl. Monocyclic heteroaryls include indolizine, indole, benzofuran, benzothiophene, indazole, benzimidazole, purine, quinolizine, quinoline, isoquinoline, cinnoline, phthalazine, quinazoline, quinoxaline, 1,8-naphthyridine, and pteridine. In some embodiments, a heteroaryl contains 0-4 N atoms in the ring.
In some embodiments, a heteroaryl contains 1-4 N atoms in the ring. In some embodiments, a heteroaryl contains 0-4 N atoms, 0-1 0 atoms, and 0-1 S atoms in the ring. In some embodiments, a heteroaryl contains 1-4 N atoms, 0-1 0 atoms, and 0-1 S atoms in the ring In some embodiments, heteroaryl is a C1-C9heteroaryl. In some embodiments, monocyclic heteroaryl is a Ci-05heteroaryl. In some embodiments, monocyclic heteroaryl is a 5-membered or 6-membered heteroaryl. In some embodiments, bicyclic heteroaryl is a Co-C9heteroaryl [00227] A "heterocycloalkyl" group refers to a cycloalkyl group that includes at least one heteroatom selected from nitrogen, oxygen and sulfur. In some embodiments, a heterocycloalkyl is fused with an aryl or heteroaryl. In some embodiments, the heterocycloalkyl is oxazolidinonyl, pyrrolidinyl, tetrahydrofuranyl, tetrahydrothienyl, tetrahydropyranyl, tetrahydrothiopyranyl, pi peri di nyl , morplioli nyl, thi oni orphol i nyl, pi perazinyl , pi peri di n-2-onyl, pyrrolidine-2,5-dithionyl, pyrrolidine-2,5-dionyl, pyrrolidinonyl, imidazolidinyl, imidazolidin-2-onyl, or thiazolidin-2-onyl. In one aspect, a heterocycloalkyl is a C2-Cioheterocycloalkyl. In another aspect, a heterocycloalkyl is a C4-Cioheterocycloalkyl. In some embodiments, a heterocycloalkyl is monocyclic or bicyclic. In some embodiments, a heterocycloalkyl is monocyclic and is a 3, 4, 5, 6, 7, or 8-membered ring. In some embodiments, a heterocycloalkyl is monocyclic and is a 3, 4, 5, or 6-membered ring. In some embodiments, a heterocycloalkyl is monocyclic and is a 3 or 4-membered ring. In some embodiments, a heterocycloalkyl contains 0-2 N atoms in the ring. In some embodiments, a heterocycloalkyl contains 0-2 N atoms, 0-2 0 atoms and 0-1 S atoms in the ring.
[00228] The term "bond" or "single bond" refers to a chemical bond between two atoms, or two moieties when the atoms joined by the bond are considered to be part of larger substructure. In one aspect, when a group described herein is a bond, the referenced group is absent thereby allowing a bond to be formed between the remaining identified groups.
[00229] The term "moiety" refers to a specific segment or functional group of a molecule.
Chemical moieties are often recognized chemical entities embedded in or appended to a molecule.

[00230] The term "optionally substituted" or "substituted" means that the referenced group is optionally substituted with one or more additional group(s) individually and independently selected from halogen, -CN, -NH2, -NH(alkyl), -N(alkyl)2, -OH, -CO2H, -0O2alkyl, -C(=0)NH2, -C(=0)NH(alkyl), -C(=0)N(alky1)2, -S(=0)2NH2, -S(=0)2NH(alkyl), -S(=0)2N(alky1)2, alkyl, cycloalkyl, fluoroalkyl, heteroalkyl, alkoxy, fluoroalkoxy, heterocycloalkyl, aryl, heteroaryl, aryloxy, alkylthio, arylthio, alkylsulfoxide, arylsulfoxide, alkylsulfone, and arylsulfone. In some other embodiments, optional substituents are independently selected from halogen, -CN, -NH2, -NH(CH3), -N(CH3)2, -OH, -CO2H, -0O2(C1-C4alkyl), -C(=0)NH2, -C(=0)NH(Ci-C4alkyl), -C(=0)N(Ci-C4alky1)2, -S(=0)2N1H2, -S(=0)2NH(Ci-C4alkyl), -S(=0)2N(Ci-Caalkyl)2, C1-C4alkyl, C3-C6cycloalkyl, Ci-C4fluoroalkyl, Ci-C4heteroalkyl, Ci-C4alkoxy, Ci-C4fluoroalkoxy, -SC1-C4alkyl, -S(=0)C1-C4alkyl, and -S(=0)2C1-C4alkyl. In some embodiments, optional substituents are independently selected from halogen, -CN, -NH2, -OH, H(CH3), -N(CH3)2, -CH3, -CH7CH3, -CHF), -CF3, -OCH3, -OCHT7, and -0CF3. In some embodiments, substituted groups are substituted with one or two of the preceding groups. In some embodiments, an optional substituent on an aliphatic carbon atom (acyclic or cyclic) includes oxo (=0).
[00231] In some embodiments, each substituted alkyl, substituted fluoroalkyl, substituted heteroalkyl, substituted carbocycle, and substituted heterocycle is substituted with one or more -11S groups independently selected from the group consisting of deuterium, halogen, Ci-C6 alkyl, monocyclic earboeyele, monocyclie heterocycle, -CN, -OR's, -CO2R18, -C(=O)N
(R'8)2, -N-(Ri8).25 NRi8c(_0)R193 sR185 S(=0)R19, -SO2R19, or -SO2N(R18)2; each R18 is independently selected from hydrogen, Ci-C6 alkyl, Ci-C6 fluoroalkyl, Ci-C6 heteroalkyl, C3-C6 cycloalkyl, C2-C6 heterocycloalkyl, phenyl, benzyl, 5-membered heteroaryl and 6-membered heteroaryl; or two R" groups are taken together with the N atom to which they are attached to form a N-containing heterocycle; each R19 is independently selected from C1-C6 alkyl, Ci-C6 fluoroalkyl, Ci-C6 heteroalkyl, C3-C6 cyeloalkyl, C2-C6 heterocycloalkyl, phenyl, benzyl, 5-membered heteroaryl and 6-membered heteroaryl.
[00232] The term "acceptable" with respect to a formulation, composition or ingredient, as used herein, means having no persistent detrimental effect on the general health of the subject being treated.
[00233] The term "modulate" as used herein, means to interact with a target either directly or indirectly so as to alter the activity of the target, including, by way of example only, to enhance the activity of the target, to inhibit the activity of the target, to limit the activity of the target, or to extend the activity of the target.
[00234] The term "modulator" as used herein, refers to a molecule that interacts with a target either directly or indirectly. The interactions include, but are not limited to, the interactions of an agonist, partial agonist, an inverse agonist, antagonist, degrader, or combinations thereof. In some embodiments, a modulator is an antagonist. In some embodiments, a modulator is an inhibitor.
[00235] The terms "administer," "administering", "administration," and the like, as used herein, refer to the methods that may be used to enable delivery of compounds or compositions to the desired site of biological action. These methods include, but are not limited to oral routes, intraduodenal routes, parenteral injection (including intravenous, subcutaneous, intraperitoneal, intramuscular, intravascular or infusion), topical and rectal administration.
Those of skill in the art are familiar with administration techniques that can be employed with the compounds and methods described herein. In some embodiments, the compounds and compositions described herein are administered orally.
[00236] The terms "co-administration" or the like, as used herein, are meant to encompass administration of the selected therapeutic agents to a single patient, and are intended to include treatment regimens in which the agents are administered by the same or different route of administration or at the same or different time.
[00237] The terms "effective amount- or "therapeutically effective amount,- as used herein, refer to a sufficient amount of an agent or a compound being administered, which will relieve to some extent one or more of the symptoms of the disease or condition being treated. The result includes reduction and/or alleviation of the signs, symptoms, or causes of a disease, or any other desired alteration of a biological system. For example, an "effective amount"
for therapeutic uses is the amount of the composition comprising a compound as disclosed herein required to provide a clinically significant decrease in disease symptoms. An appropriate "effective"
amount in any individual case is optionally determined using techniques, such as a dose escalation study.
[00238] The terms "enhance" or "enhancing," as used herein, means to increase or prolong either in potency or duration a desired effect. Thus, in regard to enhancing the effect of therapeutic agents, the term "enhancing" refers to the ability to increase or prolong, either in potency or duration, the effect of other therapeutic agents on a system. An "enhancing-effective amount," as used herein, refers to an amount adequate to enhance the effect of another therapeutic agent in a desired system.
[00239] The term "pharmaceutical combination" as used herein, means a product that results from the mixing or combining of more than one active ingredient and includes both fixed and non-fixed combinations of the active ingredients. The term "fixed combination"
means that the active ingredients, e.g. a compound of Formula (I), or a pharmaceutically acceptable salt thereof, and a co-agent, are both administered to a patient simultaneously in the form of a single entity or dosage. The term "non-fixed combination" means that the active ingredients, e.g. a compound of Formula (I), or a pharmaceutically acceptable salt thereof and a co-agent, are administered to a patient as separate entities either simultaneously, concurrently or sequentially with no specific intervening time limits, wherein such administration provides effective levels of the two compounds in the body of the patient. The latter also applies to cocktail therapy, e.g. the administration of three or more active ingredients.
[00240] The terms "article of manufacture" and "kit" are used as synonyms.
[00241] The term "subject" or "patient" encompasses mammals. Examples of mammals include, but are not limited to, any member of the Mammalian class: humans, non-human primates such as chimpanzees, and other apes and monkey species; farm animals such as cattle, horses, sheep, goats, swine; domestic animals such as rabbits, dogs, and cats;
laboratory animals including rodents, such as rats, mice and guinea pigs, and the like. In one aspect, the mammal is a human [00242] The terms "treat," "treating" or "treatment," as used herein, include alleviating, abating or ameliorating at least one symptom of a disease or condition, preventing additional symptoms, inhibiting the disease or condition, e.g., arresting the development or progression of the disease or condition, relieving the disease or condition, causing regression of the disease or condition, relieving a secondary condition caused_ by the disease or condition, or stopping the symptoms of the disease or condition either prophylactically and/or therapeutically.
Pharmaceutical Compositions 1002431 In some embodiments, the compounds described herein are formulated into pharmaceutical compositions. Pharmaceutical compositions are formulated in a conventional manner using one or more pharmaceutically acceptable inactive ingredients that facilitate processing of the active compounds into preparations that are used pharmaceutically. Proper formulation is dependent upon the route of administration chosen. A summary of pharmaceutical compositions described herein is found, for example, in Remington: The Science and Practice of Pharmacy, Nineteenth Ed (Easton, Pa.: Mack Publishing Company, 1995), Hoover, John E., Remington's Pharmaceutical Sciences, Mack Publishing Co., Easton, Pennsylvania 1975;
Liberman, H.A. and Lachman, L., Eds., Pharmaceutical Dosage Forms, Marcel Decker, New York, N.Y., 1980; and Pharmaceutical Dosage Forms and Drug Delivery Systems, Seventh Ed.
(Lippincott Williams & Wilkins1999), herein incorporated by reference for such disclosure.
1002441 A compound or a pharmaceutical composition of the present disclosure is, in some embodiments, useful for the treatment of a TYK2 mediated disease or disorder.
In some embodiments, the pharmaceutical composition is effective at treating a disease or disorder wherein TYK2 is overexpressed or hyperactive. In some embodiments, the pharmaceutical composition is effective at treating a disease or disorder which would benefit from a reduction in TYK2 activity or expression.
1002451 In some embodiments, the pharmaceutical composition is useful in the treatment of disease or disorder associated with high levels of cytokines driven by TYK2, such as interferons (e.g. IFN-a, IFN-13, IFN-K, IFN-6, IFN-s, IFN-r, IFN-co, and (also known as limitin), and interleukins (e.g. IL-4, LL-6, IL-10, IL-1 1, LL-12, IL-13, IL-22, IL-23, IL-27, IL-31, oncostatin M, ciliary neurotrophic factor, cardiotrophin 1, cardiotrophin-like cytokine, and LIT. In some embodiments, the disease or disorder is an inflammatory disease or disorder, an autoimmune disease or disorder, a respiratory disease or disorder, type 1 diabetes, and interferonopathies such as Alcardi-Goutieres syndrome, or combinations thereof.
[00246] In some embodiments, the pharmaceutical composition is useful in the treatment of an inflammatory disease or disorder. In some embodiments, the inflammatory disease or disorder is an auto-inflammatory disease or disorder, a host-mediated inflammatory disease or disorder, an injury-related inflammatory disease or disorder, an infection-related inflammatory disease or disorder, a hyperproliferative (e.g., cancer, fibrosis) mediated inflammatory disease or disorder.
In some embodiments, the inflammatory disease or disorder or infection-related inflammatory disease or disorder is a respiratory disease or disorder. In some embodiments, the respiratory disease or disorder is associated with a viral in microbial infection In some embodiments, the respiratory disease or disorder is a problematic immune response to a viral or microbial infection. In some embodiments, the respiratory disease or disorder is associated with a coronavirus such as MERS-CoV, SARS-CoV-1, or SARS-CoV-2. In some embodiments, the pharmaceutical composition is effective in decreasing symptoms associated with COVID-19, or an immune response associated therewith.
[00247] In some embodiments, the pharmaceutical composition is useful in the treatment of an autoimmune disease or disorders. In some embodiments, an autoimmune disease or disorder is rheumatoid arthritis, multiple sclerosis, psoriasis, psoriatic arthritis, lupus, systemic lupus erythematosus, Sjogren's syndrome, ankylosing spondylitis, vitiligo, atopic dermatitis, scleroderma, alopecia, hidradenitis suppurativa, uveitis, dry eye, intestinal bowel disease, Crohn's disease, ulcerative colitis, celiac disease, Bechet's disease, type 1 diabetes, systemic sclerosis, and idiopathic pulmonary fibrosis. In some embodiments, an autoimmunc disease or disorder is lupus or systemic lupus erythematosus. In some embodiments, an autoimmune disease or disorder is psoriasis. In some embodiments, an autoimmune disease or disorder is irritable bowel disease (IBS) or irritable bowel disease with diarrhea (IB S-D). In some embodiments, an autoimmune disease or disorder is dry eye or uveitis. In some embodiments, an autoimmune disease or disorder is Crohn's disease. In some embodiments, an autoimmune disease or disorder is atopic dermatitis.
1002481 In some embodiments, the compounds described herein are administered either alone or in combination with pharmaceutically acceptable carriers, excipients or diluents, in a pharmaceutical composition. Administration of the compounds and compositions described herein can be effected by any method that enables delivery of the compounds to the site of action. These methods include, though are not limited to delivery via enteral routes (including oral, gastric or duodenal feeding tube, rectal suppository and rectal enema), parenteral routes (injection or infusion, including intraarterial, intracardiac, intradermal, intraduodenal, intramedullary, intramuscular, intraosseous, intraperitoneal, intrathecal, intravascular, intravenous, intravitreal, epidural and subcutaneous), inhalational, transdermal, transmucosal, sublingual, buccal and topical (including epicutaneous, deiiiial, enema, eye drops, ear drops, intranasal, vaginal) administration, although the most suitable route may depend upon for example the condition and disorder of the recipient. By way of example only, compounds described herein can be administered locally to the area in need of treatment, by for example, topical application such as creams or ointments. Additional examples of local administration of the present compounds include eye drops, ocular creams, gels or hydrogels, implants.
transdermal patches, or drug depots In some embodiments, a pharmaceutical composition is administered orally (e.g., in a liquid formulation, tablet, capsule, nebulized liquid, aerosolized liquid, dry powder spray).
1002491 In some embodiments, pharmaceutical compositions suitable for oral administration are presented as discrete units such as capsules, cachets or tablets each containing a predetermined amount of the active ingredient; as a powder or granules; as a solution or a suspension in an aqueous liquid or a non-aqueous liquid; or as an oil-in-water liquid emulsion or a water-in-oil liquid emulsion. In some embodiments, the active ingredient is presented as a bolus, electuary or paste.
[00250] Pharmaceutical compositions which can be used orally include tablets, push-fit capsules made of gelatin, as well as soft, sealed capsules made of gelatin and a plasticizer, such as glycerol or sorbitol. Tablets may be made by compression or molding, optionally with one or more accessory ingredients. Compressed tablets may be prepared by compressing in a suitable machine the active ingredient in a free-flowing form such as a powder or granules, optionally mixed with binders, inert diluents, or lubricating, surface active or dispersing agents. Molded tablets may be made by molding in a suitable machine a mixture of the powdered compound moistened with an inert liquid diluent. In some embodiments, the tablets are coated or scored and are formulated so as to provide slow or controlled release of the active ingredient therein.

All formulations for oral administration should be in dosages suitable for such administration.
The push-fit capsules can contain the active ingredients in admixture with filler such as lactose, binders such as starches, and/or lubricants such as talc or magnesium stearate and, optionally, stabilizers. In soft capsules, the active compounds may be dissolved or suspended in suitable liquids, such as fatty oils, liquid paraffin, or liquid polyethylene glycols.
In some embodiments, stabilizers are added. Dragee cores are provided with suitable coatings. For this purpose, concentrated sugar solutions may be used, which may optionally contain gum arabic, talc, polyvinyl pyrrolidone, carbopol gel, polyethylene glycol, and/or titanium dioxide, lacquer solutions, and suitable organic solvents or solvent mixtures. Dyestuffs or pigments may be added to the tablets or Dragee coatings for identification or to characterize different combinations of active compound doses.
[00251] In some embodiments, pharmaceutical compositions are formulated for parenteral administration by injection, e.g., by bolus injection or continuous infusion Formulations for injection may be presented in unit dosage form, e.g., in ampoules or in multi-dose containers, with an added preservative. The compositions may take such forms as suspensions, solutions or emulsions in oily or aqueous vehicles, and may contain formulatory agents such as suspending, stabilizing and/or dispersing agents. The compositions may be presented in unit-dose or multi-dose containers, for example sealed ampoules and vials, and may be stored in powder form or in a freeze-dried (lyophilized) condition requiring only the addition of the sterile liquid carrier, for example, saline or sterile pyrogen-free water, immediately prior to use.
Extemporaneous injection solutions and suspensions may be prepared from sterile powders, granules and tablets of the kind previously described.
[00252] Pharmaceutical compositions may also be formulated as a depot preparation. Such long acting formulations may be administered by implantation (for example subcutaneously). Thus, for example, the compounds may be formulated with suitable polymeric or hydrophobic materials (for example, as an emulsion in an acceptable oil) or ion exchange resins, or as sparingly soluble derivatives, for example, as a sparingly soluble salt.
[00253] Pharmaceutical compositions may be administered topically, that is by non-systemic administration. This includes the application of a compound of the present invention externally to the epidermis or the buccal cavity and the installation of such a compound into the car, eye and nose, such that the compound does not significantly enter the blood stream. In contrast, systemic administration refers to oral, intravenous, intraperitoneal and intramuscular administration.
[00254] Pharmaceutical compositions suitable for topical administration include liquid or semi-liquid preparations suitable for penetration through the skin to the site of inflammation such as gels, liniments, lotions, creams, ointments or pastes, and drops suitable for administration to the eye, ear or nose. The active ingredient may comprise, for topical administration, from 0.001% to 10% w/w, for instance from 1% to 2% by weight of the foimulation.
[00255] Pharmaceutical compositions for administration by inhalation are conveniently delivered from an insufflator, nebulizer pressurized packs or other convenient means of delivering an aerosol spray. Pressurized packs may comprise a suitable propellant such as dichlorodifluoromethane, trichloraluoromethane, dichlorotetrafluoroethane, carbon dioxide or other suitable gas. In the case of a pressurized aerosol, the dosage unit may be determined by providing a valve to deliver a metered amount. Alternatively, for administration by inhalation or insufflation, pharmaceutical preparations may take the form of a dry powder composition, for example a powder mix of the compound and a suitable powder base such as lactose or starch.
The powder composition may be presented in unit dosage form, in for example, capsules, cartridges, gelatin or blister packs from which the powder may be administered with the aid of an inhalator or insufflator.
[00256] It should be understood that in addition to the ingredients particularly mentioned above, the compounds and compositions described herein may include other agents conventional in the art having regard to the type of formulation in question, for example those suitable for oral administration may include flavoring agents Methods of Dosing and Treatment Regimens [00257] In one embodiment, the compound described herein, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, are used in the preparation of medicaments for the treatment of diseases or conditions in a mammal that would benefit from modulation of TYK2 activity.
Methods for treating any of the diseases or conditions described herein in a mammal in need of such treatment, involves administration of pharmaceutical compositions that include at least one compound described herein, or a pharmaceutically acceptable salt, active metabolite, prodrug, or pharmaceutically acceptable solvate thereof, in therapeutically effective amounts to said mammal.
[00258] In certain embodiments, the compositions containing the compound(s) described herein are administered for prophylactic and/or therapeutic treatments. In certain therapeutic applications, the compositions are administered to a patient already suffering from a disease or condition, in an amount sufficient to cure or at least partially arrest at least one of the symptoms of the disease or condition. Amounts effective for this use depend on the severity and course of the disease or condition, previous therapy, the patient's health status, weight, and response to the drugs, and the judgment of the treating physician. Therapeutically effective amounts are optionally determined by methods including, but not limited to, a dose escalation and/or dose ranging clinical trial.
[00259] In prophylactic applications, compositions containing the compounds described herein are administered to a patient susceptible to or otherwise at risk of a particular disease, disorder or condition. Such an amount is defined to be a "prophylactically effective amount or dose." In this use, the precise amounts also depend on the patient's state of health, weight, and the like.
When used in patients, effective amounts for this use will depend on the severity and course of the disease, disorder or condition, previous therapy, the patient's health status and response to the drugs, and the judgment of the treating physician. In one aspect, prophylactic treatments include administering to a mammal, who previously experienced at least one symptom of the disease being treated and is currently in remission, a pharmaceutical composition comprising a compound described herein, or a pharmaceutically acceptable salt thereof, in order to prevent a return of the symptoms of the disease or condition.
[00260] In certain embodiments wherein the patient's condition does not improve, upon the doctor's discretion the administration of the compounds are administered chronically, that is, for an extended period of time, including throughout the duration of the patient's life in order to ameliorate or otherwise control or limit the symptoms of the patient's disease or condition.
[00261] Once improvement of the patient's conditions has occurred, a maintenance dose is administered if necessary. Subsequently, in specific embodiments, the dosage or the frequency of administration, or both, is reduced, as a function of the symptoms, to a level at which the improved disease, disorder or condition is retained. In certain embodiments, however, the patient requires intermittent treatment on a long-term basis upon any recurrence of symptoms.
[00262] The amount of a given agent that corresponds to such an amount varies depending upon factors such as the particular compound, disease condition and its severity, the identity (e.g., weight, sex) of the subject or host in need of treatment, but nevertheless is determined according to the particular circumstances surrounding the case, including, e.g., the specific agent being administered, the route of administration, the condition being treated, and the subject or host being treated.
[00263] In general, however, doses employed for adult human treatment are typically in the range of 0.01 mg-2000 mg per day. In one embodiment, the desired dose is conveniently presented in a single dose or in divided doses administered simultaneously or at appropriate intervals, for example as two, three, four or more sub-doses per day.
[00264] In one embodiment, the daily dosages appropriate for the compound described herein, or a pharmaceutically acceptable salt thereof, described herein are from about 0.01 to about 50 mg/kg per body weight. In some embodiments, the daily dosage or the amount of active in the dosage form are lower or higher than the ranges indicated herein, based on a number of variables in regard to an individual treatment regime. In various embodiments, the daily and unit dosages are altered depending on a number of variables including, but not limited to, the activity of the compound used, the disease or condition to be treated, the mode of administration, the requirements of the individual subject, the severity of the disease or condition being treated, and the judgment of the practitioner.
[00265] Toxicity and therapeutic efficacy of such therapeutic regimens are determined by standard pharmaceutical procedures in cell cultures or experimental animals, including, but not limited to, the determination of the LD50 and the ED50 The dose ratio between the toxic and therapeutic effects is the therapeutic index and it is expressed as the ratio between LD50 and ED50. In certain embodiments, the data obtained from cell culture assays and animal studies are used in formulating the therapeutically effective daily dosage range and/or the therapeutically effective unit dosage amount for use in mammals, including humans. In some embodiments, the daily dosage amount of the compounds described herein lies within a range of circulating concentrations that include the ED50 with minimal toxicity. In certain embodiments, the daily dosage range and/or the unit dosage amount varies within this range depending upon the dosage form employed and the route of administration utilized.
[00266] Tn any of the aforementioned aspects are further embodiments in which the effective amount of the compound described herein, or a pharmaceutically acceptable salt thereof, is: (a) systemically administered to the mammal; and/or (b) administered orally to the mammal; and/or (c) intravenously administered to the mammal; and/or (d) administered by injection to the mammal; and/or (e) administered topically to the mammal; and/or (f) administered non-systemically or locally to the mammal [00267] In any of the aforementioned aspects are further embodiments comprising single administrations of the effective amount of the compound, including further embodiments in which (i) the compound is administered once a day; or (ii) the compound is administered to the mammal multiple times over the span of one day.
[00268] In any of the aforementioned aspects are further embodiments comprising multiple administrations of the effective amount of the compound, including further embodiments in which (i) the compound is administered continuously or intermittently: as in a single dose; (ii) the time between multiple administrations is every 6 hours; (iii) the compound is administered to the mammal every 8 hours; (iv) the compound is administered to the mammal every 12 hours;
(v) the compound is administered to the mammal every 24 hours. In further or alternative embodiments, the method comprises a drug holiday, wherein the administration of the compound is temporarily suspended or the dose of the compound being administered is temporarily reduced; at the end of the drug holiday, dosing of the compound is resumed. In one embodiment, the length of the drug holiday varies from 2 days to I year.
Combination Treatments [00269] In certain instances, it is appropriate to administer at least one compound described herein, or a pharmaceutically acceptable salt thereof, in combination with one or more other therapeutic agents.
[00270] In one embodiment, the therapeutic effectiveness of one of the compounds described herein is enhanced by administration of an adjuvant (i.e., by itself the adjuvant has minimal therapeutic benefit, but in combination with another therapeutic agent, the overall therapeutic benefit to the patient is enhanced). Or, in some embodiments, the benefit experienced by a patient is increased by administering one of the compounds described herein with another agent (which also includes a therapeutic regimen) that also has therapeutic benefit.
[00271] In one specific embodiment, a compound described herein, or a pharmaceutically acceptable salt thereof, is co-administered with a second therapeutic agent, wherein the compound described herein, or a pharmaceutically acceptable salt thereof, and the second therapeutic agent modulate different aspects of the disease, disorder or condition being treated, thereby providing a greater overall benefit than administration of either therapeutic agent alone.
[00272] In any case, regardless of the disease, disorder or condition being treated, the overall benefit experienced by the patient may simply be additive of the two therapeutic agents or the patient may experience a synergistic benefit.
[00273] For combination therapies described herein, dosages of the co-administered compounds vary depending on the type of co-drug employed, on the specific drug employed, on the disease or condition being treated and so forth. In additional embodiments, when co-administered with one or more other therapeutic agents, the compound provided herein is administered either simultaneously with the one or more other therapeutic agents, or sequentially.
[00274] In combination therapies, the multiple therapeutic agents (one of which is one of the compounds described herein) are administered in any order or even simultaneously. If administration is simultaneous, the multiple therapeutic agents are, by way of example only, provided in a single, unified form, or in multiple forms (e.g., as a single pill or as two separate pills).
[00275] The compounds described herein, or a pharmaceutically acceptable salt thereof, as well as combination therapies, are administered before, during or after the occurrence of a disease or condition, and the timing of administering the composition containing a compound varies. Thus, in one embodiment, the compounds described herein are used as a prophylactic and are administered continuously to subjects with a propensity to develop conditions or diseases in order to prevent the occurrence of the disease or condition. In another embodiment, the compounds and compositions are administered to a subject during or as soon as possible after the onset of the symptoms. In specific embodiments, a compound described herein is administered as soon as is practicable after the onset of a disease or condition is detected or suspected, and for a length of time necessary for the treatment of the disease. In some embodiments, the length required for treatment varies, and the treatment length is adjusted to suit the specific needs of each subject.
EXAMPLES
[00276] As used above, and throughout the description of the invention, the following abbreviations, unless otherwise indicated, shall be understood to have the following meanings.
Abbreviations:
ACN acetonitrile CAN ceric ammonium nitrate DCM dichloromethane DIBAL diisobutylaluminum hydride DIPEA N,N-dii sopropyl ethyl amine DMA dimethylacetamide DMF N,N-dimethylformamide DMSO dimethylsulfoxide Et0Ac ethyl acetate EGTA ethylene glycol-bis(0-aminoethyl ether)-N,N,N',N'-tetraacetic acid ES electrospray FBS fetal bovine serum GST glutathione S-transferase HEK human embryonic kidney HEPES 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid IHMDS bis(trimethylsilyl)amide HPLC high pressure liquid chromatography HTRF homogenous time resolved fluorescence IC50 half maximal inhibitory concentration IFN interferon IL interl eukin IPA isopropyl alcohol JAK Janus kinase LCMS liquid chromatography-mass spectrometry MDI metered drug inhalant MW microwave NMR nuclear magnetic resonance SEAP secreted embryonic alkaline phosphatase STAT signal transducer and activator of transcription T3P propanephosphonic acid anhydride TBAF tetra-n-butylammonium fluoride TBDMS tert-butyl dimethyl silyl TBDPS tert-butyldiphenylsilyl TEA triethylamine TFA trifluoroacetic acid THY tetrahydrofuran TLC thin-layer chromatography TYK non-receptor tyrosine-protein kinase [00277] The following examples are provided for illustrative purposes only and not to limit the scope of the claims provided herein Synthesis of Compounds Example 1: Preparation of 6-methy1-5,6-dihydrobenzo[h]11,61naphthyridin-7-amine (1-1):
F

i) MrteN161.1121, Me0H
I ..., ci).L
(13cc)20 II) NaBH4, 0 C-rt, 2 h I
___________________________________ ..- -=
1 KOAc, 1,4-dioxane NE1 TEIF6k,hD,CrtM ..õ-"-.,,,"-.1 N_Boc Pd(dPPOCl2-CH2C12 Step-1 Step-2 Step-3 I-1 a I-1 b I-1c I I I I
NLN.- N TFA, DCM N Pd/C, H2 / N
0 C to rt, 2 h Me0H, rt, 2 h F _____________________________________ " N __________ ' N
.- .-Step-4 Step-5 I-1d 1-le I-1 [00278] Step-1: 1-(2-chloropyridin-3-y1)-N-methylmethanamine (1-1b): To a stirred solution of 2-chloropyridine-3-carbaldehyde I-la (5.00 g, 35.3 mmol) in Me0H (50 mL) was added 2M
MeNTI7 in Et0H (6.00 mL, 63.6 mmol), and the reaction mixture was stirred for 16 h (reaction progress was monitored by TLC). After complete consumption of starting material, reaction mixture was cooled to 0 C and NaBH4 (10.5 g, 293 mmol) was added to it portion-wise. The reaction mixture was all owed to warm to room temperature over 2 h. After completion (as indicated by TLC), volatiles were removed under reduced pressure and water (50 mL) was added to it Extraction was carried out using DCM (50 mL x 3); the combined organic extracts were washed with brine (50 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to afford 1-(2-chloropyridin-3-y1)-N-methylmethanamine I-lb (5.5 g) as a pale yellow oil. LCMS (ES) In/z; 157.1 [M-FHr.
[00279] Step-2: tert-butyl ((2-ehloropyridin-3-yl)methyl)(methyl)carbamate (1-1e): To a stirred solution of I-lb (5.00 g, 31.9 mmol) in DCM (80.0 mL) was added TEA
(22.4 mL, 160 mmol) and (Boc)20 (36.7 mL, 160 mmol). The reaction mixture was stirred at room temperature for 16 h. The reaction progress was monitored by LCMS. After completion, volatiles were removed under reduced pressure and water (50 mL) was added to it. Extraction was carried out using DCM (50 mL x 3) The combined organic extracts were washed with brine (50 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by Combi -Flash (using gradient elution of 0-20% Et0Ac in hexane) to afford desired compound tert-butyl ((2-chloropyridin-3-yl)methyl)(methyl)carbamate I-lc (7.00 g) as a pale yellow oil. LCMS (ES) m/z; 257.1 [M-PFIr.
[00280] Step-3: tert-butyl ((2-(2-fluoro-3-nitrophenyl)pyridin-3-yl)methyl)(methyl)carbamate (1-1d): Argon gas was purged through a stirred suspension oft-lc (3.0 g, 11.7 mmol), 2-(2-fluoro-3-nitropheny1)-4,4,5,5-tetramethy1-1,3,2-dioxaborolane (3.43 g, 12.9 mmol) and KOAc (3.44 g, 35.1 mmol) in 1,4-dioxane (25.0 mL) for 15 min. To this was then added Pd(dppf)C12.DCM (61.2 mg, 0.0749 mmol). The reaction mixture was then stirred at 80 C for 16 h in a sealed tube. It was then cooled to room temperature, filtered through celite bed and washed with Et0Ac (50 mL x 2). The combined filtrate was concentrated under reduced pressure and the residue was purified by Combi-Flash (using gradient elution of 0-30% Et0Ac in hexane) to afford tert-butyl ((2-(2-fluoro-3-nitrophenyl)pyridin-3-yl)methyl)(methyl)carbamate I-1d (1.3 g) as a yellow oil. LCMS (ES) m/z; 362.2 [M+11]+.
[00281] Step-4: 6-methyl-7-nitro-5,6-dihydrobenzo[h][1,6]naphthyridine (I-le):
To a stirred solution of I-1d (1.3 g, 3.6 mmol) in DCM (10.0 mL) was added TFA (5.0 mL) at 0 C
under nitrogen atmosphere and the reaction mixture was allowed to warm to room temperature over 2 h. The progress of the reaction was monitored by LCMS. After completion, volatiles were removed under reduced pressure and saturated NaHCO3 solution (50 mL) was added to the residue. Extraction was carried out using DCM (3 x 30 mL); the combined organic extracts were washed with water (20 mL), brine (20 mL), dried over anhydrous Na2SO4, filtered and evaporated under reduced pressure to afford 6-methyl-7-nitro-5,6-dihydrobenzo[h][1,6]naphthyridine 1-le (0.68 g) as a brown solid. LCMS (ES) nilz; 242.1 [M+H].
[00282] Step-5: 6-methyl-5,6-dihydrobenzo[h] 11,61naphthyridin-7-amine (1-1):
To a stirred solution of 1-le (0.278, 1.12 mmol) in Me0H (20.0 mL) was added 10% Pd/C (59 mg) at room temperature. The reaction mixture was then stirred under hydrogen atmosphere (balloon) for 2 h.
After completion, the catalyst was filtered off through celite and washed with Me0H (5 mL x 2). The filtrate was concentrated under reduced pressure. The residue was then stirred in pentane (15 mL), filtered and dried to afford desired compound 6-methy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-amine I-I (0.2 g) as an orange solid. LCMS
(ES) nilz;
212.0 [M+H]t. IH NMR (400 MHz, DMSO-do) 6 8.52 (dd, Ji = 1.2 Hz, J2 = 4.8 Hz, 1H); 7.69 (d, J= 6.0 Hz, 1H); 7.46 (dd, Ji = 1.2 Hz, J2 = 7.6 Hz, 1H); 7.30 (dd, Ji =
4.8 Hz, J2 = 7.2 Hz, 1H); 6.96 (t, J= 7.6 Hz, 1H); 6.74 (dd, Ji = 1.2 Hz, J2 = 7.6 Hz, 1H); 4.95 (s, 2H); 4.14 (s, 2H), 2.40 (s, 311).
Example 2: Preparation of 6-m ethyl-5,6-dihydropyrimido[5,4-c[quinolin-7-amine (I-2):

B
methylacrylate sq. Li0H.H20, THF Br A
Eaton's reagent r 11101 AcOH, 90 C, 48 h Br Me0H, 2 h, rt 70 C, 16h Step-1 Step-2 Step-3 I-2a I-2b I-2c HN ZnCl2, NI-140Ac Bon-NI-12, Cs2CO3 Br Mel, K2CO3 Br CH(OEt)3, toluene, NN
Pd(OAc)2, Xantphos 0 DMF, 80 C, 24 h 0 100 C, 24 h Br 1,4-dioxane, 100 C, 16 h Step-4 Step-5 Step-I-2d I-2e I-2f , N
N TFA, DCM
I _I
1,0y N I

0 C-rt, 3 0 h H

0 Step-7 1-2g 1-2 [00283] Step-1: methyl 3-((2-bromophenyl)amino)propanoate (I-2b): A mixture of bromoaniline I-2a (6.00 g, 34.9 mmol) and methyl prop-2-enoate (9.48 mL, 105 mmol) in AcOH (3.99 mL, 69.8 mmol) was stirred at 90 C for 48 h in a sealed tube. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction mixture was cooled to room temperature and concentrated under reduced pressure Saturated NaHCO3 solution (100 mL) was added to it and extraction was carried out using Et0Ac (70 mL
x 3). The combined organic extracts were washed with brine (70 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by Combi-Flash (using gradient elution of 0-10% Et0Ac in hexane) to afford methyl 3-((2-bromophenyl)amino)propanoate I-2b (3.1 g) as a viscous liquid. LCMS (ES) in/z;
258.0 [M+H].
1002841 Step-2: 3-((2-bromophenyl)amino)propanoic acid (1-2c): To a stirred solution of 1-2b (2.50g, 9.69 mmol) in THF:Me0H (8.0:8.0:8.0 mL) was added an aqueous solution of Li0H-H20 (1.22 g, 29.1 mmol, in 8 mL water) and stirred for 2 h at room temperature. After completion, volatiles were removed under reduced pressure and the aqueous layer was washed with diethyl ether (30 mL x 2). The aqueous layer was then acidified using IN
HC1 and extraction was carried out using Et0Ac (50 mL x 3). The combined organic extracts were washed with brine (50 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to afford 3-((2-bromophenyl)amino)propanoic acid I-2c (1.9 g) as a thick oil.
LCMS (ES) nilz; 244.0 [M-41]+.
1002851 Step-3: 8-bromo-2,3-dihydroquinolin-4(1H)-one (I-2d): A solution of 1-2c (2.5 g, 10.2 mmol) in Eaton's reagent (100 mL) was stirred at 80 C for 16 h. It was then cooled to room temperature and ice cold water (100 mL) was added to it. The aqueous layer was then made alkaline by slow addition of 50% aqueous NaOH solution. Extraction was carried out using Et0Ac (100 mL x 2). The combined organic extracts were washed with brine (50 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure.
The residue was purified by Conibi -Flash (using gradient elution of 0-10% FAO Ac in hexane) to afford desired compound 8-bromo-2,3-dihydroquinolin-4(1H)-one I-2d (1.8 g) as a pale yellow oil. LCMS
(ES) m/z; 226.0 [M-41] .
1002861 Step-4: 8-bromo-1-methy1-2,3-dihydroquinolin-4(1H)-one (I-2e): To a stirred solution of I-2d (2.5 g, 11.1 mmol) in anhydrous DATE' (25 mL) was added anhydrous K2CO3 (4.58 g, 33.3 mmol) and stirred for 10 min at room temperature. To this was then added iodomethane (1.38 mL, 22.2 mmol) and the reaction mixture was allowed to stir at 80 C for 24 h in a sealed tube. The progress of the reaction was monitored by TLC. After completion, water (70 mL) was added to it and extraction was carried out using Et0Ac (70 mL x 3). The combined organic extracts were washed with water (75 mL x 2), brine (100 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The resulting crude was purified by Combi-Flash (using gradient elution of 0-10% Et0Ac in hexane) to afford desired compound 8-bromo-1-methy1-2,3-dihydroquinolin-4(1H)-one I-2e (1.1 g) as a yellow solid.
LCMS (ES) in/z;
239.9 [M+H]t.
1002871 Step-5: 7-bromo-6-methyl-5,6-dihydropyrimido15,4-elquinolone (I-21):
To a stirred solution of anhydrous ZnC12 (56.8 mg, 0.416 mmol) and triethylorthoformate (1.85 g, 12.5 mmol) in anhydrous toluene (10.0 mL) was added I-2e (1.08, 4.16 mmol) and N1140Ac (0.648, 8.33 mmol). The reaction mixture was then allowed to stir at 100 C for 24 h in a sealed tube.

After completion, the reaction mixture was cooled to room temperature and saturated NaHCO3 solution (30 mL) was added to it. Extraction was carried out using Et0Ac (30 mL x 3); the combined organic extracts were washed with brine (50 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by Combi-Flash (using gradient elution of 0-20% Et0Ac in hexane) to afford desired compound 7-bromo-6-methy1-5,6-dihydropyrimido[5,4-c]quinolone I-21' (0.62 g) as a pale yellow solid. LCMS (ES) In/z; 276.0 [M+H]+.
1002881 Step-6: tert-butyl (6-methyl-5,6-dihydropyrimido[5,4-dquinolin-7-yl)earbamate (I-2g): Argon gas was purged through a stirred suspension of I-2f (1.3 g, 4.71 mmol), tert-butyl carbamate (1.1 g, 9.42 mmol) and Cs2CO3 (3.07 g, 9.42 mmol) in 1,4-dioxane (10 mL) for 15 min. To this was then added [5-(diphenylphosphany1)-9,9-dimethy1-9H-xanthen-4-ylidiphenylphosphane (0.27 g, 0.47 mmol) and Pd(OAc)2 (0.11 g, 0.47 mmol). The reaction mixture was then stirred at 100 C for 16 h in a sealed tube. It was then cooled to room temperature, filtered through Celite bed and washed with Et0Ac (50 mL x 2).
The combined filtrate was concentrated under reduced pressure and the residue was purified by Combi-Flash (using gradient elution of 0-50% Et0Ac in hexane) to afford I-2g (1.3 g). LCMS
(ES) nilz;
313.0 [M-FI-1]+.
1002891 Step-7: 6-methy1-5,6-dihydropyr1mid015,4-clquinolin-7-amine (1-2): To a stirred solution of 1-2g (1.3 g, 4.16 mmol) in DCM (20.0 mL) was added TFA (5.0 mL) at 0 C under nitrogen atmosphere and the reaction mixture was allowed to warm to room temperature over 2 h. The progress of the reaction was monitored by TLC. After completion, volatiles were removed under reduced pressure and saturated NaHCO3 solution (50 mL) was added to the residue_ Extraction was carried out using Et0Ac (3 x 30 mL); the combined organic extracts were washed with water (30 mL), brine (30 mL), dried over anhydrous Na2SO4, filtered and evaporated under reduced pressure to afford 1-2 (0.7 g). LCMS (ES) rn/z; 213.2 [M+11] . 1H
NMR (400 MHz, DMSO-d6) 6 9.07 (s, 1H); 8.66 (s, 1H); 7.44 (dd, Ji = 1.6 Hz, J2 = 7.6 Hz, 1H); 6.99 (t, J= 7.6 Hz, 1H); 6.83 (dd, Ji = 1.2 Hz, J2 = 7.6 Hz, 1H); 5.07 (s, 2H); 4.17 (s, 2H);
2.39 (s, 3H).

Example 3: Preparation of 6-m ethyl-5,6-dihydropyrazino[2,3-c[quinolin-7-amine (I-3):
>%0 F

Pc1(0Ac)2, SPhos DIPEA : T 2 h, rt Boc Na 0 H C

-rt, THF
C,l, 2 T h ElF
(Boc)20 Me 70 C, 16 h H
CI N
HCI salt Step-1 CI N Step-2 ClN Step-3 I-3a I-3b 1-3c Raney Ni TFA, N DCM N
02N y I 0 C to rt 16 h 021'.1 Me0H, rt, 1 h H2N
Step-4 I Step-5 I-3d I-3e 1-3 [00290] Step-1: tert-butyl ((3-chloropyrazin-2-ylimethyl)carbamate (I-3b): To a stirred solution of 1-3a (6.00 g, 33.3 mmol) in THF (100.0 mL) were added DLPEA (11.4 mL, 66.7 mmol) and (Boc)20 (7.61 mL, 33.3 mmol) at 0 'C. The reaction mixture was then stirred at room temperature for 2 h. After completion, water (50 mL) was added to it and and extracted with Et0Ac (2 x 60 mL). The combined organic extracts were washed with brine (50 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The resulting crude was purified by Combi-Flasli (using gradient elution 0-20% Et0Ac in Heptane) to afford desired compound tert-butyl ((3-chloropyrazin-2-yl)methyl)carbamate I-3b (7.0 g) as an off-white solid.
LCMS (ES) m/z; 244.1 [M+Hr.
[00291] Step-2: tert-butyl ((3-chloropyrazin-2-yl)methyl)(methyl)carbamate (I-3c): To a stirred solution of I-3b (9.50 g, 39.0 mmol) in TI-fF (100.0 mL) was added sodium hydride (60%
in mineral oil) (2.34 g, 58.5 mmol) at 0 C and stirred for 1 h at the same temperature. To this was then added iodomethane (7.28 mL, 117 mmol) at 0 C. It was then slowly allowed to warm to room temperature over 1 h. After complete consumption of starting material, water (50.0 mL) was added to it and extracted with Et0Ac (3 x 70 mL). The combined organic extracts were washed with brine (50 mL), dried over anhydrous Na2SO4, filtered and concentrated under vacuum. The resulting crude was purified by Combi-Flash (using gradient elution 0-20% Et0Ac in Heptane) to afford desired compound tert-butyl ((3-chloropyrazin-2-yl)methyl)(methyl)carbamate I-3c (7.0 g) as a yellow liquid. LCMS (ES) nviz;
258.1 [M-41]'.
[00292] Step-3: tert-butyl ((3-(2-fluoro-3-nitrophenyl)pyrazin-2-yl)methyl)(methyl)carbamate (I-3d): Argon gas was purged through a stirred suspension of I-3c (2.5 g, 9.7 mmol), 2-(2-fluoro-3-nitropheny1)-4,4,5,5-tetramethy1-1,3,2-dioxaborolane (3.89 g, 14.6 mmol) and KF (1.69 g, 29.1 mmol) in THE' (30.0 mL) for 15 min. To this was then added Pd(OAc)2 (0.109 g, 0.485 mmol) and dicyclohexyl({2',6'-dimethoxy-[1, 1'-bipheny11-2-ylpphosphane (0.398 g, 0.97mm01). The reaction mixture was then stirred at 70 'V for 16 h in a sealed tube. It was then cooled to room temperature, filtered through celite bed and washed with Et0Ac (50 mL x 2). The combined filtrate was concentrated under reduced pressure and the residue was purified by Combi-Flash (using gradient elution of 0-30% Et0Ac in hexane) to afford tert-butyl ((3-(2-fluoro-3-nitrophenyl)pyrazin-2-yl)methyl)(methyl)carbamate I-3d (3.3 g) as a yellow solid. LCMS (ES) rn/z; 363.2 [M+H]t [00293] Step-4: 6-methyl-7-nitro-5,6-dihydropyrazino[2,3-c[quinoline (I-3e):
To a stirred solution of 1-3d (3.8 g, 10.5 mmol) in DCM (60.0 mL) was added TFA (20.0 mL) at 0 'V under nitrogen atmosphere and the reaction mixture was allowed to warm to room temperature over 16 h. After completion, volatiles were removed under reduced pressure and saturated NaHCO3 solution (50 mL) was added to the residue. Extraction was carried out using Et0Ac (2 x 50 mL);
the combined organic extracts were washed with water (20 mL), brine (10 mL), dried over anhydrous Na7SO4, filtered and evaporated under reduced pressure to afford 6-methy1-7-nitro-5,6-dihydropyrazino[2,3-c]quinoline I-3e (2.2 g) as an orange solid. LCMS (ES) in/z; 243.1 [M+H]+.
[00294] Step-5: 6-methyl-5,6-dihydropyrazino[2,3-e[quinolin-7-amine (1-3): To a stirred solution of Raney Ni (500 mg, 8.52 mmol) in Me0H (30.0 mL) was added hydrazine hydrate (5.27 mIõ 108.0 mmol) and 1-3e (2.10 g, 8.67 mmol) in Me0H (30.0 niI,) at 0 C. The reaction mixture was then stirred at room temperature. After completion (as indicated by LCMS), it was filtered through celite bed and washed with 20% Me0H in DCM (30 mL x 2). The combined filtrate was concentrated under pressure and the residue was purified by Combi-Flash (using gradient elution of 0-55% Et0Ac in hexane) to afford desired compound 6-methy1-5,6-dihydropyrazino[2,3-c]quinolin-7-amine 1-3 (1_80 g) as a yellow solid. LCMS
(ES) nilz; 213.1 [M+H]'. 1H NMR (400 MHz, DMSO-d6) 6 8.57 (d, J = 2.8 Hz, 1H); 8.51 (d, J = 2.4 Hz, 1H);
7.42(dd,J1= 1.2 Hz, J2 = 7.6 Hz, 1H); 7.01 (t, J = 8.0 Hz, 1H); 6.81 (dd, =
1.2 Hz, J2 = 8.0 Hz, 1H); 5.08 (s, 2H); 4.24 (s, 2H); 2.46 (s, 3H).

Example 4: Preparation of 6-(methyl-d3)-5,6-dihydropyrazino12,3-clquinolin-7-amine (I-4):

Boc,N,CD3 Pd(OAc)2, SPhos N NaH, CD3I, THF N CI KF, THF
Boc, 0 C-rt 2 h CD 3 70 C, 16 h I C)2N
N
CI Step-1 N" N-Boc Step-2 I-3b I-4a I-4b Raney Ni TFA, DCM D3C 'N N-) NH2NH2.H20 D3C,N
0 C-rt, 16 h 02N IV1e0H, nt, 1 h. H2N
N
Step-3 Step-4 I-4c 1-4 [00295] Step-1: tert-butyl ((3-chloropyrazin-2-ylUnethyl)(methyl-d3)carbamate (I-4a): I-4a (2.5 g) was synthesized by following procedure as described for the synthesis of 1-3 (step-2) using I-3b (3.0 g, 12.3 mmol) and iodomethane-d3 (1.15 mL, 18.5 mmol) as the starting materials. LCMS (ES)n/; 261.1 [M+H]t 1002961 Step-2: tert-butyl ((3-(2-fluoro-3-nitrophenyl)pyrazin-2-yl)methyl)(methyl-d3)carbamate (I-4b): I-4b (2.9 g) was synthesized by following procedure as described for the synthesis of 1-3 (step-3) using I-4a (2.5 g, 9.59 mmol) and 2-(2-fluoro-3-nitropheny1)-4,4,5,5-tetramethy1-1,3,2-dioxaborolane (3.84 g, 14.4 mmol) as the starting materials.
LCMS (ES) m/z;
366.1 [M+H]t.
[00297] Step-3: 6-(methyl-d3)-7-nitro-5,6-dihydropyrazino[2,3-c[quinoline (I-4c): I-4c (1.8 g) was synthesized by following procedure as described for the synthesis of I-3 (step-4) using I-4b (2.9 g, 7.94 mmol) as the starting material. LCMS (ES) m/z; 246.1 [M-41]".
[00298] Step-4: 6-(methyl-d3)-5,6-dihydropyrazino[2,3-e[quinolin-7-amine (I-4): 1-4 (1.6 g) was synthesized by following procedure as described for the synthesis of I-3 (step-5) using I-4c (1.9 g, 7.75 mmol) as the starting material. LCMS (ES) m/z; 216.0 [M+Hr. 1H
NMR (400 MHz, DMS046) c5 8.57 (d, J= 2.4 Hz, 1H), 8.51 (d, J= 2.8 Hz, 1H); 7.42 (dd, Ji = 1.6 Hz, J2 =
7.6 Hz, 11-1); 7.01 (t, J= 8.0 Hz, 1H); 6.82 (dd, Ji = 1.2 Hz, J2 = 8.0 Hz, 1H); 5.07 (s, 2H); 4.24 (s, 2H).

Example 5: 6-methyl-5,6-dihydropyrazino[2,3-c][1,7]naphthyridin-7-amine (I-5):
CI F CI
Nbi _B7 F
N I i) 4 M HCI in 1,4-dioxane N 0 C-rt, 4 h Pd2(db03, [(t-Bu)3PHIE/F4 ii) DIPEA, 1,4-dioxane Boc,N CsF, THF, 50 C, 16 h 85 C, 5 h ,õ.
CI N Step-1 N Boc Step-2 CI
N
1-3c I-5a I-5b cyclopropanecarboxamide Pd2(dba)3, Xentphos, Cs2CO3 N eq. Li0H.H20, THF
1,4-dioxane, 130 C, 16 h 50 C, 16 h _________________________________ -Step-3 HN N Step-4 \y-Co I-5c 1-5 [00299] Step-1: tert-butyl ((3-(2-chloro-3-fluoropyridin-4-yl)pyrazin-2-yOmethyl)(methypcarbamate (I-5a): Argon gas was purged through a solution of I-3c (5.3 g, 20.6 mmol), (2-chloro-3-fluoropyridin-4-yl)boronic acid (12.6 g, 72.0 mmol) and CsF (9.37 g, 61.7 mmol) in THF (50.0 mL) for 15 min. To this was then added tri-tert-butylphosphonium tetrafluoroborate (0.36 g, 1.23 mmol) and tris(1,5-diphenylpenta-1,4-dien-3-one) dipalladium (0.94 g, 1.03 mmol). The reaction mixture was then stirred at 50 C for 16 h in a sealed tube After completion, the reaction mixture was filtered through celite bed and washed with Et0Ac (50 mL x 2). The combined filtrate was concentrated under reduced pressure and the residue was purified by Combi -Flash (using gradient elution of 0-30% Et0Ac in hexane) to afford tert-butyl ((3-(2-chloro-3-fluoropyridin-4-yl)pyrazin-2-yOmethyl)(methyl)carbamate I-5a (3.8 g) as a yellow oil. LCMS (ES) m/z; 353.1 [M-PH]t [00300] Step-2: 7-chloro-6-methyl-5,6-dihydropyrazino12,3-c]11,71naphthyridine (I-5b): A
4M solution of HC1 in 1,4-dioxane (80 mL) was added to I-5a (4.1 g, 11.6 mmol) at 0 C and the reaction mixture was stirred at room temperature for 16 h. After completion, volatiles were removed under reduced pressure and dried (co-evaporation with 1,4-dioxane). To this was then added 1,4-dioxane (40 mL) and DIPEA (13.6 mL, 79.2 mmol) at room temperature.
The reaction mixture was then stirred at 85 C for 5 h. After completion, volatiles were removed under reduced pressure and residue was purified by Combi-Flash (using gradient elution of 0-55% Et0Ac in hexane) to afford desired compound 7-chloro-6-methy1-5,6-dihydropyrazino[2,3-c][1,7]naphthyridine I-5b (2.4 g) as a yellow solid. LCMS (ES) m/z; 233.1 [M-h1-1]' .
[00301] Step-3: N-(6-methy1-5,6-dihydropyrazino[2,3-c][1,7]naphthyridin-7-y1)cyclopropanecarboxamide (I-5c): Argon gas was purged through a stirred suspension of I-5b (2.3 g, 9.89 mmol), cyclopropanecarboxamide (1.68 g, 19.8 mmol) and Cs2CO3 (9.66 g, 29.7 mmol) in 1,4-dioxane (30 mL) for 15 min. To this was then added [5-(diphenylphosphany1)-9,9-dimethy1-911-xanthen-4-yl]diphenylphosphane (0.57 g, 0.989 mmol) and Pd2(dba)3 (0.9 g, 0.989 mmol). The reaction mixture was then stirred at 130 C for 16 h in a sealed tube. It was then cooled to room temperature, filtered through celite bed and washed with Et0Ac (50 mL x 2).
The filtrate was concentrated under reduced pressure and the residue was purified by Combi-Flash (using gradient elution of 0-80% Et0Ac in hexane) to afford N-(6-methy1-5,6-dihydropyrazino[2,3-c][1,7]naphthyridin-7-y1)cyclopropanecarboxamide 1-5c (1.8 g) as a pale yellow solid. LCMS (ES) m/z; 282.1 [M+H].
[00302] Step-4: 6-methy1-5,6-dihydropyrazino12,3-c][1,71naphthyridin-7-amine (1-5): To a stirred solution of I-5c (1.8 g, 6.4 mmol) in THF (20 mL) was added an aqueous solution of Li0H-H20 (1.07 g, 25.6 mmol, ins mL water) and the reaction mixture was stirred at 50 C for 16 h. After completion, it was cooled to room temperature and water (20 mL) was added to it.
Extraction was carried out using 10% Me0H in DCM (50 mL x 2); the combined organic extracts were washed with brine (50 mL), dried over anhydrous Na2SO4, filtered and evaporated under reduced pressure. The residue was purified by Combi-Flash (using gradient elution of 0-10% Me0H in DCM) to afford desired compound 6-methy1-5,6-dihydropyrazino[2,3-c][1,7]riaphthyridin-7-ami ne I-5 (0.8 g) as a yellow solid. T,CMS (ES) 111/7;
214.1 [M+Hr.
NMR (400 MHz, CDC13) 6 8.59 (d, J= 2.4 Hz, 1H); 8.54 (d, J= 2.4 Hz, 1H); 8.03 (d, J= 5.2 Hz, 1H); 7.59 (d, J= 5.2 Hz, 1H); 4.93 (s, 2H); 4.36 (s, 2H); 2.65 (s, 3H).
Example 6: Preparation of 6-methyl-5,6-dihydropyrido [3,4-h] [1,6]naphthyridin-7-amine (1-6):
CI F
Nn_ BoH
Boc i) 4 M HCI in 1,4-dioxane ral Pd2(dba)3, [(t-Bu)3PHpF4 ii) DIPEA, 1,4-dioxane Boc,Nrr CsF, THF, 50 C, 16 h 85 C, 5 h I
C, N Step-1 CI N Step-2 CINI-6a 1-6 b cyclopropanecarboxamide N NI
Pd2(dba)3, Xantphos, Cs2CO3 1,4-dioxane, 130 C, 16 h N aq. LIOH.H20, THF
60 C, 16 h Step-3 HN N Step-4 ,KyLO
I-6c 1-6 [00303] Step-1: tert-butyl ((2'-chloro-3'-fluoro-12,4'-bipyridin1-3-yOmethyl)(methypcarbamate (1-6a): 1-6a (5.9 g) was synthesized by following procedure as described for the synthesis of 1-5 (step-1) using 1-1c (6.0 g, 19.9 mmol) and (2-chloro-3-fluoropyridin-4-yl)boronic acid (8.73 g, 49.8 mmol) as the starting materials.
LCMS (ES) m/z;
352.1 [M+H]t.
[00304] Step-2: 7-chloro-6-methyl-5,6-dihydropyrido[3,4-h][1,61naphthyridine (I-6b): I-6b (4.1 g) was synthesized by following procedure as described for the synthesis of 1-5 (step-2) using I-6a (6.0 g, 20.8 mmol) as the starting material. LCMS (ES) m/z; 232.0 [M+Hr.
[00305] Step-3: N-(6-methyl-5,6-dihydropyrido[3,4-h][1,6[naphthyridin-7-y1)cyclopropanecarboxamide (I-6c): I-6c (1.3 g) was synthesized by following procedure as described for the synthesis of 1-5 (step-3) using 1-6b (4.0 g, 7.18 mmol) and cyclopropanecarboxamide (1.22 g, 14.4 mmol) as the starting materials. LCMS
(ES) m/z; 281.0 [M+H]
[00306] Step-4: 6-methyl-5,6-dihydropyrido13,4-h]11,61naphthyridin-7-amine (I-6): 1-6 (0.45 g) was synthesized by following procedure as described for the synthesis of 1-5 (step-4) using I-6c (1.3 g, 4.64 mmol) as the starting material. LCMS (ES) m/z; 213.1 [M-hEl]t 1H NMR
(400 MHz, CDC13) 6 11-1N-MR (400 MHz, CDC13) 6 8.67 (dd, II= 1.6 Hz, J2 = 8.0 Hz, 1H); 8.03 (d, J= 5.2 Hz, 1H); 7 60-7.49 (m, 2H); 7.37-7.26 (m, 1H); 4.89 (s, 2H); 4.20 (s, 2H); 2 56 (s, 3H).
Example 7: Preparation of 6-methyl-5,6-dihydrobenzo[h]11,61naphthyridin-5,5-d2-7-amine (I-7):
MeNH2, Me0H
rt' D D
16 h aq. NaHCO3 HATU, DIPEA 0 0 THF NaBD4, Me0H
(Boc)20 DMF, rt N.O., -78 C-0 C, 1 h D 0 C-rt, 2 h (e. THF, 16 h, rt I I I
N CI
Step-1 N CI Step-2 Step-3 Nr- CI
Step-4 N CI
I-7a I-7b I-7c I-7d F
0.13 co NO, D Pd(OAc)2, SPhos I D I D I
D
Boc KF, THF Boe,N N TFA, DCM D N Pd/C, H2 D
N
D
70 C, 16 h 0 C-it, 16 11,. DMeOH' rt' N CI Step-6 Step-6 Step-7 I-7e I-7f I-7g 1-7 [00307] Step-1: 2-chloro-N-methoxy-N-methylnicotinamide (I-7b): To a stirred solution of I-7a (4.5 g, 28.6 mmol) in DMIT (40 mL) were added DIPEA (14.6 mL, 85.7 mmol) and IIATU
(21.7 g, 57.1 mmol) at 0 C. To this was then added N,0-dimethylhydroxylamine hydrochloride (5.57 g, 57.1 mmol) and the reaction mixture was allowed to stir at room temperature for 2 h.
After complete consumption of starting material, water (30 mL) was added and extracted with Et0Ac (75 x 3 mL). The combined organic extracts were washed with brine (50 mL
x 2), dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by Combi-Flash (using gradient elution of (0-50% Et0Ac in Heptane) to afford 2-chloro-N-methoxy-N-methylnicotinamide I-7b (3.5 g) as an off-white solid. LCMS (ES) in/z; 201.1 [M+1-1] .
[00308] Step-2: 2-chloronicotinaldehyde-d (1-7c): To a stirred solution of I-7b (3.2 g, 16.0 mmol) in anhydrous THE (15.0 mL) was added LiAlD4 (0.65 g, 16.0 mmol) portion-wise at -78 'C. It was then stirred at 0 'V for 1 h. After completion, saturated NH4CI
solution (20 mL) was added to it and extraction was carried out using Et0Ac (50 mL x 3). The combined organic extracts were washed with brine (50 mL x 2), dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by Combi-Flash (using gradient elution of 0-25% Et0Ac in Heptane) to afford 2-chloronicotinaldehyde-d I-7c (6 g) as an-off white solid.
LCMS (ES) nilz; 143.1 [M+H].
[00309] Step-3: 1-(2-chloropyridin-3-y1)-N-methylmethan-d2-amine (I-7d): To a stirred solution of I-7c (1.1 g, 7.72 mmol) in Me0H (15.0 mL) were added TEA (2.3 mL, 15.4 mmol) and methyl amine hydrochloride (1.04 g, 15.4 mmol) at 0 C . The reaction mixture was stirred for 16 h at room temperature. After completion, it was cooled to 0 C and NaBD4 (0.65 g, 15.4 mmol) was added to it portion-wise. The reaction mixture was stirred at room temperature for 2 h. After completion, saturated NaHCO3 solution (10 mL) was added to it and washed with Et0Ac (10 mL x 2). The resulting aqueous NaHCO3 solution containing 1-(2-chloropyridin-3-y1)-N-methylmethan-d2-amine I-7d was used for the next step. LCMS (ES) m/z;
159.1 [M-h1-1]'.
[00310] Step-4: tert-butyl ((2-chloropyridin-3-yl)methyl-d2)(methyl)carbamate (I-7e): A
solution of (Boc),70 (9.0 mL, 39.4 mmol) in THF (20 mL) was added to an aqueous NaHCO3 solution containing I-7d and the reaction mixture was stirred at room temperature for 16 h. After completion, water (50 mL) was added to it and extraction was carried out using Et0Ac (30 mL x 3). The combined organic extracts were washed with brine (50 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by Combi-Flash (using gradient elution of 0-10% Et0Ac in hexane) to afford desired compound tert-butyl ((2-chloropyridin-3-yl)methyl-d2)(methyl)carbamate I-7e (1.2 g) as a colorless thick oil. LCMS
(ES) in/; 259. [m-q-i].
[00311] Step-5: tert-butyl ((2-(2-fluoro-3-nitrophenyl)pyridin-3-yl)m ethyl-d2)(methyl)carbamate (I-71): I-7f (1.3 g) was synthesized by following procedure as described for the synthesis of 1-3 (step-3) using I-7e (1.0 g, 3.86 mmol) and 2-(2-fluoro-3-nitropheny1)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.55 g, 5.8 mmol) as the starting materials. LCMS (ES) m/z; 364.1 [MA-1r [00312] Step-6: 6-methyl-7-nitro-5,6-dihydrobenzo[h]11,61naphthyridine-5,5-d2 (I-7g): I-7g (0.75 g) was synthesized by following procedure as described for the synthesis of I-3 (step-4) using I-7e (1.4 g, 3.86 mmol) as the starting material. LCMS (ES) m/z; 244.1 [M+H]P.
[00313] Step-7: 6-methyl-5,6-dihydrobenzo[h][1,6]naphthyridin-5,5-d2-7-amine (I-7): To a stirred solution of I-7g (0.75 g, 3.08 mmol) in Me0H (20.0 mL) was added 10%
Pd/C (250 mg) at room temperature. It was then allowed to stir under hydrogen atmosphere (H2 balloon) for 2 h.
After completion, the catalyst was filtered off through celite bed and washed with Me0H (20 mL x 2). The combined filtrate was concentrated under reduced pressure and the residue was purified by Combi -Flash (using gradient elution of 0-55% Et0Ac in hexane) to afford 6-methyl-5,6-dihydrobenzo[h][1,6]naphthyridin-5,5-d2-7-amine 1-7 (0.54) as a yellow solid. LCMS (ES) m/z; 214.0 [M-HEIr 11-1 NMR (400 MHz, DMSO-d6) 6 8.61 (dd,.// = 1.6 Hz, J2 =
4.8 Hz, 1H);
7.75 (dd, .// = 1.2 Hz, J2 = 7.6 Hz, 1H),7.53 (dd, = 1.2 Hz, J2 = 7.6 Hz, 1H); 7.21 (dd, = 4.8 Hz, .12 = 7.2 Hz, 1H); 7.11 (t, = 7.6 Hz, 1H); 6.82 (dd, = 1.2 Hz, .12 = 7.6 Hz, 1H); 4.17 (s, 2H); 2.53 (s, 3H).
Example 8: Preparation of 3-fluoro-6-methyl-5,6-dihydrobenzo[h1[1,6]naphthyridin-5,5-d2-7-amine (1-8):
N i) MeN H2, Me0H
rt, 16 h HATU, D1PEA I 0 THF ii)NaBD,s, Me0H F
I'`=-=
DMF, rt F -78 C-0 C, 1 h I D
Step-1 Step-2 Step-3 N CI N CI N CI N CI
I-8a I-8b .>% F
No2 eq. NaHCO3 Pd(OAc)2, SPhos 1 , D
D I
(Boc)20 F D ,Boc KF, THF ,IN N TFA, DCM D
N Pd/C, H2 D N
THF, 16 h, rt N 70 C, 16 h Boc Me0H rt 2 h Step-4 CI Step-5 Step-6 Step-7 I-8f I-8g [00314] Step-1: 2-chloro-5-fluoro-N-methoxy-N-methylnicotinamide (I-8b): I-8b (2.6 g) was synthesized by following procedure as described for the synthesis of 1-7 (step-1) using I-8a (2.5 g, 14.2 mmol) as the starting material. LCMS (ES) m/z; 219.1 [M+H].
1003151 Step-2: 2-chloro-5-fluoronicotinaldehyde-d (I-8c): I-8c (1.5 g) was synthesized by following procedure as described for the synthesis of 1-7 (step-2) using I-8b (2.5 g, 11.4 mmol) as the starting material. LCMS (ES) m/z; 161.0 [M+H]
[00316] Step-3-4: tert-butyl ((2-chloro-5-fluoropyridin-3-yflmethyl-d2)(methyl)carbamate (I-8e): I-8e (1.3 g) was synthesized by following procedure as described for the synthesis of 1-7 (step-3-4) using 1-8c (2.0 g, 12.5 mmol) as the starting material. LCMS (ES) m/z; 277.1 [M+H].

[00317] Step-5: tert-butyl ((5-fluoro-2-(2-11uoro-3-nitrophenyl)pyridin-3-yl)methyl-d2)(methyl)carbamate (I-81): I-8f (1.0 g) was synthesized by following procedure as described for the synthesis of 1-3 (step-3) using I-8e (0.9 g, 3.25 mmol) and 2-(2-fluoro-3-nitropheny1)-4,4,5,5-tetramethy1-1,3,2-dioxaborolane (1.3 g, 4.88 mmol) as the starting materials. LCMS (ES) m/z; 382.1 [M+Hr.
[00318] Step-6: 3-fluoro-6-methy1-7-nitro-5,6-dihydrobenzo[h][1,6]naphthyridine-5,5-d2 (I-8g): I-8g (0.75 g) was synthesized by following procedure as described for the synthesis of I-3 (step-4) using 1-8f(1.3 g, 3.41 mmol) as the starting material. LCMS (ES) m/z; 262.1 [M+1-1] .
[00319] Step-7: 3-fluoro-6-methy1-5,6-dihydrobenzo[h]11,61naphthyridin-5,5-d2-7-amine (I-8): 1-8 (0.8 g) was synthesized by following procedure as described for the synthesis of 1-7 (step-7) using I-8g (1.1 g, 4.21 mmol) as the starting material. LCMS (ES) m/z; 232.2 [M-hEl]+.
Example 9: Preparation of 2,6-dimethy1-5,6-dihydrobenzo[h][1,6[naphthyridin-5,5-d2-7-amine (I-9):
i) MeNH2, Me0H
H rt, 16 h D D
, ,..... oti HATU, DIPEA
I
.......C1ILCI N CI LiAID4, THF a) NaBD4, Me0H
-78 C-0 C, 1 h -...õ D 0 C-rt, 2 h . 1 ----, N-Step-1 ' I I
I
Step-2 ,..---..N-..-----õCI
Step-3 N CI N
I-9a I-9b I-9c I-9d B
cy.13õNo2 aq. NaHCO3 (Boc)20 D D Pd(OAc)2, SPhos I .---' I /
D I
/
D
I
THF, 16 h, rt,,,,c 70 6, 16 h 016 h Me0H, rt, 2 h.
N_Boc * I , I
KF, THF Boc,N ---, N TFA, DCM D
___________________________________________________________ - -- D
Step-4 N CI Step-5 Step-6 Step-7 I-9e 1-9f 1-9g [00320] Step-1: 2-chloro-N-methoxy-N,6-dimethylnicotinamide (I-9b): I-9b (2.6 g) was synthesized by following procedure as described for the synthesis of I-7 (step-1) using I-9a (2.5 g, 14.2 mmol) as the starting material. LCMS (ES) in/z; 215.1 [M-F1-11+.
[00321] Step-2: 2-chloro-6-methylnicotinaldehyde-d (I-9c): I-9c (5.8 g) was synthesized by following procedure as described for the synthesis of 1-7 (step-2) using I-9b (5.0 g, 29.1 mmol) as the starting material. LCMS (ES) ni/z; 157.0 [M+H] .
[00322] Step-3-4: tert-butyl ((2-chloro-6-methylpyridin-3-yl)methyl-d2)(methyl)carbamate (I-9e): I-9e (3.3 g) was synthesized by following procedure as described for the synthesis of 1-7 (step-3-4) using 1-9c (2.3 g, 14.7 mmol) as the starting material. LCMS (ES) m/z; 273.1 [M+H]t [00323] Step-5: tert-butyl 42-(2-fluoro-3-nitropheny1)-6-methylpyridin-3-yl)methyl-d2)(methyl)carbamate (I-91): I-9f (2.8 g) was synthesized by following procedure as described for the synthesis of 1-3 (step-3) using I-9e (3.5 g, 12.8 mmol) and 2-(2-fluoro-3-nitrophenyI)-4,4,5,5-tetramethy1-1,3,2-dioxaborolane (5.14 g, 19.2 mmol) as the starting materials. LCMS
(ES) m/z; 378.2 [M+H]h.
[00324] Step-6: 2,6-dimethy1-7-nitro-5,6-dihydrobenzo[h]11,61naphthyridine-5,5-d2 (1-9g):
I-9g (1.5 g) was synthesized by following procedure as described for the synthesis of 1-3 (step-4) using I-9f (2.8 g, 7.42 mmol) as the starting material. LCMS (ES) m/z;
258.1 [M+Hr.
[00325] Step-7: 2,6-dimethy1-5,6-dihydrobenzo[h][1,6]naphthyridin-5,5-d2-7-amine (I-9):
1-9 (0.49 g) was synthesized by following procedure as described for the synthesis of 1-7 (step-7) using I-9g (0.6 g, 2.33 mmol) as the starting material. LCMS (ES) ni/z;
228.2 I_M+H_I . 1H
NMR (400 MHz, DMSO-d6) 6 7.54 (d, J= 7.6 Hz, 1H); 7.42 (dd, Ji = 1.2 Hz, J2 =
8.0 Hz, 1H);
7.12 (d, J = 8.0 Hz, 1H); 6.91 (t, J = 7.6 Hz, 1H); 6.99 (dd, Ji = 1.6 Hz, J2 = 7.6 Hz, 1H); 4.91 (s, 2H); 2.45 (s, 3H); 2.35 (s, 3H).
Example 10: Preparation of 6-methyl-2-(trifluoromethyl)-5,6-dihydrobenzo[h]111,61naphthyridin-5,5-d2-7-amine (I-10):
I) MeNh12, Me0H
HATU, DIPEA 0 rt, 16 h LiA1134, THF 0 NaBD4,MeOH D D
OH
DMF, rt N...0-, -78 C-0 C, 1 h D o C 2 h =-===
CX.11.-I I I I
H
Step-1 Step-2 Step-3 F3C N CI F3C N CI F3C N CI F30 NI' CI
I-10a I-10b I-10c I-10d eq. NaHCO3 Pd(OAc)2, SPhos D I D I
(Boc)20 THF, 1h, KF, THF goo,. N
oTrC-,ArtDCM16h, D N m e0H pd/c ,rt" i-122 h D N
6 rt N C N
I I
step-4 F3C Nr CI 70 '16 h . D D F
Step-5 Step-6 Step-7 I-10e I-10f I-10g [00326] Step-1: 2-chloro-N-methoxy-N-methyl-6-(trifluoromethyl)nicotinamide (I-10b): I-10b (5.7 g) was synthesized by following procedure as described for the synthesis of 1-7 (step-1) using I-10a (5.0g. 22.2 mmol) as the starting material. LCMS (ES) nilz; 269.1 [M+Hr.
[00327] Step-2: 2-chloro-6-(trifluoromethyl)nieotinaldehyde-d (I-10e): I-1 0e (3.2 g) was synthesized by following procedure as described for the synthesis of I-7 (step-2) using I-10b (5.7 g, 21.2 mmol) as the starting material. LCMS (ES) m/z; 211.0 [M+11]'.
[00328] Step-3-4: tert-butyl 42-chloro-6-(trifluoromethyl)pyridin-3-yl)methyl-d2)(methyl)carbamate (I-10e): I-10e (2.2 g) was synthesized by following procedure as described for the synthesis of 1-7 (step-3-4) using I-10c (3.2 g, 15.2 mmol) as the starting material. LCMS (ES) m/z; 327.1 [M+Hr.
[00329] Step-5: tert-butyl 42-(2-fluoro-3-nitropheny1)-6-(trifluoromethyl)pyridin-3-y1)methyl-d2)(methyl)carbamate (I-10f): I-10f (2.6 g) was synthesized by following procedure as described for the synthesis of 1-3 (step-3) using I-10e (2.2 g, 6.73 mmol) and 2-(2-fluoro-3-nitropheny1)-4,4,5,5-tetramethy1-1,3,2-dioxaborolane (2.7 g, 10.1 mmol) as the starting materials. LCMS (ES) m/z; 432.2 [M+Hr.
[00330] Step-6: 6-methyl-7-nitro-2-(trifluoromethyl)-5,6-dihydrobenzo[h][1,61naphthyridine-5,5-d2 (I-10g): I-10g (1.48) was synthesized by following procedure as described for the synthesis of 1-3 (step-4) using 1-10f (2.6 g, 6.03 mmol) as the starting material. LCMS (ES) m/z; 312.1 [M+H].
[00331] Step-7: 6-methyl-2-(trifluoromethyl)-5,6-dihydrobenzo[h]11,61naphthyridin-5,5-d2-7-amine (1-10): 1-10 (1.2 g) was synthesized by following procedure as described for the synthesis of 1-7 (step-7) using I-10g (1.4 g, 4.63 mmol) as the starting material. LCMS (ES) m/z;
282.1 [M+H]t. NMR (400 MHz, DMSO-do) 6 7.99 (d, J= 7.6 Hz, 1H); 7.79 (d, J=
7.6 Hz, 1H); 7.45 (dd, Jj = 1.6 Hz, J2 = 8.0 Hz, 1H); 7.00 (t, J= 7.6 Hz, 1H); 6.81 (dd, Ji = 1.2 Hz, J2 =
8.0 Hz, 111), 5.04 (s, 2H), 2.37 (s, 3H).
Example 11: Preparation of 7-amino-2,6-dimethyl-5,6-dihydropyridazino14,5-elquinolin-1(2H)-one (I-11):
(E)-styrylboronic acid K2CO3, Pd(PPh3)2Cl2 T01-IsF0:H4,2N0a(12 :41.) CI .-0 Nal, DMF 0 1,4-diexanemater (2:1) .. 0 N., 160 C, 36 h CI 90 "C, 2h rt, 16 h Ii I I N N
Step-1 I 7 Ph o I Step-2 Step-3 I-11a 1-lib I-11e 1-11d >%
CT 4,o' hl(3 i) MeN H2, Me0H Bee, rt, 16 h o aq. NaHCO3 0 Pd(OAc)2, SPhos ii) NaBH4, Me0H (Boc)20 II KF, TI-IF F YN
0 C-rt, 2 h CI
re. THF, 16 h, rt BgThJ=-- 70 C, 16 h Step-4 N Step-5 Step-6 tii 0 1-11e I-11f 1-119 Hydrazine hydrate N
TFA, DCM Thµl N
I Raney Nickel, Me0H I I
0 C-rt, 16 h... 0 C-rt. 1 h H2N
Step-7 iii0 Step-8 iLi0 I-11h 1-11 [00332] Step-1: 4-ehloro-5-iodo-2-methylpyridazin-3(211)-one (I-11b): To a stirred solution of 1-ha (36.0 g, 201.0 mmol) in DMF (360 mL) was added sodium iodide (90.4 g, 603.0 mmol) at room temperature. The reaction was then stirred at 160 C for 36 h. After completion, it was cooled to room temperature and ice cold water (700 mL) was added to it.
Extraction was carried out using Et0Ac (3 x 100 mL), the combined organic extracts were washed with brine (100 mL
x 2), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The resulting crude was dissolved in Me0H (170.0 mL) at 65 C and then water (340 mL) was added to it with continuous stirring. The precipitated solid was filtered, washed with water (200 mL) and dried. It was then stirred in n-pentane (100 mL), filtered and dried to afford desired compound 4-chloro-5-iodo-2-methyl-2,3-dihydropyridazin-3-one I-11 b (11.6 g) as a pale brown solid. LCMS (ES) m/z; 271.0 [M+H]. 1H NMR (400 M_Hz, CDC13) 67.96 (s, 1H);
3.78 (s, 3H).
[00333] Step-2: (E)-4-ehloro-2-methyl-5-styrylpyridazin-3(211)-one (I-11c): To a stirred solution of 1-lib (11.6 g, 35.6 mmol) in 1,4-dioxane (100.0 mL) and water (50.0 mL) were added (E)-styrylboronic acid (5.3 g, 35.6 mmol) and potassium carbonate (7.38 g, 534 mmol).
Argon gas was purged through it for 10 min. To this was then added PdC1_2(PPh3)2. (1.0 g, 1.42 mmol) and the reaction was stirred at 90 'V for 2 h in a sealed tube. After complete consumption of starting material, it was cooled to room temperature and diluted with Et0Ac (300 mL). The organic layer was washed with water (80 mL), brine (100 mL x 2), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The residue was washed with DCM
(50 mL), n-pentane (80 mL) and dried under reduced pressure to afford (E)-4-chloro-2-methy1-5-styrylpyridazin-3(2H)-one I-11c (7.0 g) as a pale yellow solid. LCMS (ES) rn /z: 247.0 [M+H]t 11-1 NMR (4001V[Elz, CDC13) 6 8.05 (s, 1H); 7.59-7.58 (m, 2H); 7.42-7.38 (m, 3H); 7.29 (s, 2H); 3.84 (s, 3H).
[00334] Step-3: 5-chloro-l-methy1-6-oxo-1,6-dihydropyridazine-4-carbaldehyde (1-11d):
To a stirred solution of I-11c (7.0 g, 28.4 mmol) in TIEF (70.0 mL) and water (35.0 mL) was added osmium tetrc-pcide (2 5 wt.% in n-butanol) (14 4 niIõ 1.42 mmol) at room temperature and stirred for 30 min. To this was then added NaI04 (12.1 g, 56.8 mmol) portion wise and the reaction was stirred for another 16 h at room temperature. After completion of the reaction, water (60 mL) was added to it and extraction was carried out using Et0Ae (3 x 70 mL). The combined organic extracts were washed with brine (100 mL x 2), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by Combi-Flash (using gradient elution of 0-2% Me0H in DCM) to afford desired compound 5-chloro-1-methy1-6-oxo-1,6-dihydropyridazine-4-carbaldehyde 1-11d (2.5 g) as a pale yellow solid. 1H NAAR (400 MHz, CDC13) 6 10.43 (s, 1H); 8.08 (s, 1H); 3.90 (s, 3H).
[00335] Step-4-5: tert-butyl ((5-chloro-1-methyl-6-oxo-1,6-dihydropyridazin-4-yl)methyl)(methyl)carbamate (I-11f): I-11f (2.0 g) was synthesized by following procedure as described for the synthesis of 1-7 (step-3-4) using I-11d (4.0 g, 23.2 mmol) as the starting material and NaBH4 (1.71 g, 46.4 mmol) as a reducing agent. LCMS (ES)in/z;
288.0 [M-41] .
[00336] Step-6: tert-butyl ((5-(2-fluoro-3-nitropheny1)-1-methyl-6-oxo-1,6-dihydropyridazin-4-yl)methyl)(methyl)carbamate (I-11g): 1-11g (2.3 g) was synthesized by following procedure as described for the synthesis of 1-3 (step-3) using I-11f (1.5 g, 5.21 mmol) and 2-(2-fluoro-3-nitropheny1)-4,4,5,5-tetramethy1-1,3,2-dioxaborolane (2.10 g, 7.82 mmol) as the starting materials. LCMS (ES) rn/z; 393.2 [M+Hr.

[00337] Step-7: 2,6-dimethy1-7-nitro-5,6-dihydropyridazino[4,5-c]quinolin-1(211)-one 11 i): I-11h (1.4 g) was synthesized by following procedure as described for the synthesis of 1-3 (step-4) using 1-11h (2.3 g, 5.86 mmol) as the starting material. LCMS (ES) m/z; 273.0 [M+H]t [00338] Step-8: 7-amino-2,6-dimethy1-5,6-dihydropyridazino14,5-clquinolin-1(2H)-one (I-11): I-11 (0.65 g) was synthesized by following procedure as described for the synthesis of 1-3 (step-5) using I-11h (1.3 g, 4.77 mmol) as the starting material. LCMS (ES) m/z; 243.1 [M+H]t 'H NMR (400 MHz, CDC13) 6 8.32 (dd, ii = 1.2 Hz, J2 = 8.0 Hz, 1H); 7.68 (s, 1H); 7.09 (t, J =
8.0 Hz, 111); 6.83 (dd, ii = 1.2 Hz, d2 = 8.0 Hz, 1H); 4.06 (s, 2H); 3.97 (s, 21-1); 3.89 (s, 3H);
2.49 (s, 3H).
Example 12: 3-fluoro-6-methyl-5,6-dihydrobenzo[h][1,6]naphthyridin-7-amine (I-12):
>t .9B gio NO
i) MeN H2, Me0H
0 rt, 16 h aq. NaHCO3 Pd(0Ac)2, THE
ii) NaBH4, MeON F (Boo)20 F
,Boc KF, SPhos H 0 C-rt, 2 h THF, 16 h, rt 70 C, 16 h I I I
NCI Step-1 N CI Step-2 N CI Step-3 I-12a I-12b I-12c I I
BooõN N TFA, DCM N Pd/C, H2 N
0 C-rt, 2 h Me0H, rt, 2 h Step-4 Step-5 N

I-12d I-12e 1-12 [00339] Step-1-2: tert-butyl ((2-chloro-5-fluoropyridin-3-yl)methyl)(methyl)carbamate (I-12c): I-12c (3.5 g) was synthesized by following procedure as described for the synthesis of 1-7 (step-3-4) using I-12a (4.5 g, 28.2 mmol) as the starting material. LCMS (ES) m/z; 275.1 [M+1-1] .
[00340] Step-3: tert-butyl ((5-fluoro-2-(2-11uoro-3-nitrophenyl)pyridin-3-yl)methyl)(methyl)carbamate (1-12d): 1-12d (1.6 g) was synthesized by following procedure as described for the synthesis of 1-3 (step-3) using I-12c (3.5 g, 12.7 mmol) and 2-(2-fluoro-3-nitropheny1)-4,4,5,5-tetramethy1-1,3,2-dioxaborolane (4.42 g, 16.6 mmol) as the starting materials. LCMS (ES) m/z; 380.1 [M+1-1]+.
[00341] Step-4: 3-fluoro-6-methy1-7-nitro-5,6-dihydrobenzo111111,61naphthyridine (I-12e):
I-12e (0.6 g) was synthesized by following procedure as described for the synthesis of 1-3 (step-4) using 1-12d (1.6 g, 4.22 mmol) as the starting material. LCMS (ES) m/z;
260.1 [M+H]t [00342] Step-5: 3-fluoro-6-methy1-5,6-dihydrobenzo[h]11,61naphthyridin-7-amine (I-12):
1-12 (0.3 g) was synthesized by following procedure as described for the synthesis of 1-7 (step-7) using I-112e (0.6 g, 2.31 mmol) as the starting material. LCMS (ES) in/z;
230.2 [M+H]t. 111 NMR (400 MHz, DMSO-d6) 6 8.48 (dõI = 2.4 Hz, 1H); 7.68 (dd, Ii = 2.8 Hz, J2 =
8.4 Hz, 1H);
7.37 (dd, Ii = 2.4 Hz, J2 = 8.0 Hz, 1H); 6.93 (t, J= 7.6 Hz, 1H); 6.71 (dd, Ji = 2.8 Hz, J2 = 8.0 Hz, 1H); 4.97 (s, 2H): 4.14 (s, 2H); 2.36 (s, 3H).
Example 13: Preparation of 4,6-dichloro-N-methylpyridazine-3-carboxamide (A-1):
i) oxalyl chloride, DCM
cat. DMF, rt, 2 h ii) CH3NH2.HCI, DIPEA
, , LiO)YL, DCM rt 16 h I
H I
N,N-;.----,CI Step-1 N,N-5--,.CI
A-la A-1 [00343] To a stirred solution of A-la (10.0 g, 50.3 mmol) in anhydrous DCM
(100 mL) was added catalytic amount of DIV1F (2 to 3 drops) and oxalyl chloride (9.11 mL, 101.0 mmol) drop wise at 0 C. The reaction mixture was then allowed to warm to room temperature over 2 h.
After completion, volatiles were removed under reduced pressure and the residue was dried. It was then dissolved in anhydrous DCM (50 mL) and added to a stirred solution of methylamine hydrochloride (5.09 g, 75.4 mmol) and DIPEA (13.2 mL, 75.4 mmol) in DCM (50 mL) at 0 C
under nitrogen atmosphere. The reaction mixture was then stirred at room temperature for 16 h.
Water (50 mL) was then added to it and the organic layer was separated. It was then washed with saturated NaHCO3 solution (30 mL), brine (50 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The residue was then purified by Combi-Flash (using gradient elution of 0-40% Et0Ac in hexane) to afford desired compound 4,6-dichloro-N-methylpyridazine-3-carboxamide A-1 (3.2 g) as an off-white solid. LCMS (ES) m/z; 206.0 [M+H] .
Example 14: Preparation of 4,6-dichloro-N-(methyl-d3)pyridazine-3-carboxamide (A-2):
i) oxalyl chloride, DCM
cat. DMF, rt, 2 h 0 CI 0 Cl Li0 NI1 ,N.'-: CI
"J Step-1 Y ii) CD3NH2.HCI, DIPEA
DCM, rt, 16 h .._ ID3C'N--iyõ.., H NI, NI:..------õCl A-1 a A-2 [00344] To a stirred solution of A-la (5.0 g, 25.1 mmol) in anhydrous DCM (40 mL) was added catalytic amount of DMF (2 to 3 drops) and oxalyl chloride (4.6 mL, 50.3 mmol) drop wise at 0 'C. The reaction mixture was then allowed to warm to room temperature over 2 h.
After completion, volatiles were removed under reduced pressure and the residue was dried. It was then dissolved in anhydrous DCM (25 mL) and added to a stirred solution of methan-d3-amine hydrochloride (2.13 g, 30.2 mmol) and DIPEA (13.2 mL, 75.4 mmol) in anhydrous DCM
(25 mL) at 0 C under nitrogen atmosphere The reaction mixture was then stirred at room temperature for 16 h. Water (50 mL) was then added to it and the organic layer was separated. It was then washed with saturated NaHCO3 solution (30 mL), brine (50 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The residue was then purified by Combi-Flash (using gradient elution of 0-40% Et0Ac in hexane) to afford desired compound 4,6-dichloro-N-(methyl-d3)pyridazine-3-carboxamide A-2 (2.6 g) as an off-white solid. LCMS
(ES) m/z; 209.0 [M+Ht Example 15: Preparation of 4,6-diehloro-N-(methyl-d3)nieotinamide (A-3):
i) oxalyl chloride, DCM
cat. DMF, it, 2 h ii) CD3NF12.HCI, DIPEA
DCM, it, 16 h D3C..
HO INCI s*--.
H ii Step-1 NCI
A-3a A-3 [00345] A-3 (2.6 g) was synthesized by following procedure as described for the synthesis of A-2 using A-3a (3 g) as the starting material. LCMS (ES) m/z 208.0 [M+1-1]'.
Example 16: Preparation of 4,6-dichloro-N-methylnicotinamide (A-4):
i) oxalyl chloride, DCM
cat. DMF, it, 2 h HOr'-=
II) CH3NH2.HCI, DIPEA
DCM, rt, 16 h CI Step-1 A-3a A-4 [00346] A-4 (2.5 g) was synthesized by following procedure as described for the synthesis of A-1 using A-3a (3 g) as the starting material. LCMS (ES) m/z; 204.9 [M+H].
Example 17: Preparation of 4-bromo-6-ehloro-N-(methyl-d3)nicotinamide (A-5):
CD3NH2.HCI
0 Br 0 Br HATU, DIPEA
HO -"'(1 DCM, 0 C-rt, 3 h D3C, )Y) N CI Step-1 N CI
A-5a A-5 1003471 To a stirred solution of A-5a (4.75 g, 20.1 mmol), methan-d3-amine hydrochloride (1.7 g, 24.1 mmol) and DIPEA (10.4 mL, 60.3 mmol) in DCM (15 mL) was added HATU
(11.5 g, 30.1 mmol) at 0 C and the reaction mixture was allowed to stir at room temperature for 3 h.
After completion, water (50 mL) was added to it and extracted with DCM (75 mL
x 2). The combined organic extracts were washed with brine (50 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure The residue was then purified by Combi-Flash (using gradient elution 0-20% Et0Ac in Heptane) to afford desired compound 4-bromo-6-chloro-N-(methyl-d3)nicotinamide A-7 (3.1 g) as an off-white solid. LCMS (ES) m/z; 252.0 [M+1-1] .
Example 18: Preparation of 6-(eyelopropanecarboxamido)-N-(methyl-d3)-4-((6-methyl-5,6-dihydrobenzo[h][1,6]naphthyridin-7-yl)amino)pyridazine-3-earboxamide (Compound 1) 3c,N j(NrICI
N cyclopropanecarboxamide N
A-2 r4 CI Cs2CO3, Xantphos N LiHMDS, DMA Pd2(dba)3, 1,4-dioxane 0 C, 1 h 130 C, 3h Step-1 Dac,N Step-2 Isl:N CI
1-1 1a Compound 1 [00348] Step-1: 6-chloro-N-(methyl-d3)-44(6-inethyl-5,6-dihydrobenzo[h][1,61naphthyridin-7-yl)amino)pyridazine-3-carboxamide (1a): To a stirred solution of I-1 (0.35 g, 1.66 mmol) and A-2 (0.74 g, 2.48 mmol) in anhydrous DMA (10.0 mL) was added a 1M solution of LiHMDS (in THF) (6.63 mL, 6.63 mmol) drop wise at 0 'C. The reaction mixture was then allowed to stir at the same temperature for 1 h, while monitoring reaction progress by TLC. After completion, it was quenched by addition of water (20 mL) and extraction was carried out using 10% Me0H in DCM (30 mL x 3). The combined organic extracts were washed with brine (30 mL), dried over anhydrous Na7SO4, filtered and concentrated under reduced pressure. The residue was then purified by Combi-Flash (using gradient elution of 0-5% Me0H in DCM) to afford desired compound 6-chloro-N-(methyl-d3)-4-06-methy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-yDamino)pyridazine-3-carboxamide 1a (0.27 g) as an off-white solid. LCMS (ES) in/z; 384.2 [M-41]+.
[00349] Step-2: 6-(eyeloproparieearboxamido)-N-(methyl-d3)-4-46-methyl-5,6-dihydrobenzo[h][1,6]naphthyridin-7-y1)amino)pyridazine-3-carboxamide (Compound 1):
Argon gas was purged through a stirred suspension of 6-chloro-N-(methyl-d3)-446-methy1-5,6-dihydrobenzo[h]11,61naphthyridin-7-yl)amino) pyridazine-3-carboxamide 1a (0.27 g, 0.703 mmol), cyclopropanecarboxamide (0.078 g, 0.914 mmol) and Cs2CO3 (0.46 g, 1.41 mmol) in 1,4-dioxane (8.0 mL) for 15 min. To this was then added [5-(diphenylphosphany1)-9,9-dimethyl-9H-xanthen-4-yl]diphenylphosphane (0.041 g, 0.07 mmol) and Pd2(dba)3 (0.064 g, 0.07 mmol).
The reaction mixture was then stirred at 130 C for 3 h in a sealed tube.
After completion, it was cooled to room temperature and filtered through Celite bed. It is washed with Et0Ac (50 mL x 2) and the filtrate was concentrated under reduced pressure. The residue was purified by Combi-Flash (using gradient elution of 0-5% Me0H in DCM) to afford desired compound (cyclopropanecarboxamido)-N-(methyl-d3)-446-methy1-5,6-dihydrobenzo[h]11,61naphthyridin-7-yl)amino)pyridazine-3-carboxamide 1 (0.15 g) as a pale yellow solid. LCMS (ES) m/z; 433.2 [M-H]. 111 NIVIR (400 MHz, DMSO-d6) 6 11.27 (s, 1H);
10.86 (s, 1H); 9.07 (s, 1H); 8.56 (d, J = 3.2 Hz, 1H); 8.19 (s, 1H); 8.02 (d, J= 7.6 Hz, 1H); 7.72 (d, J = 6.8 Hz, 1H); 743 (d, I = 7.6 Hz, 1H); 7.36-7.33 (m, 1H); 7.24 (apparent t, J = 7.6 Hz, 1H); 4.24 (s, 2H); 2.44 (s, 3H); 2.10-2.00 (m, 1H); 0.82-0.72 (m, 4H).
Example 19: 6-(cyclopropanecarboxamido)-N-(methyl-d3)-4-((6-methy1-5,6-dihydropyrazino[2,3-c][1,71naphthyridin-7-yl)amino)nicotinamide (Compound 14):
NIM
N I
-µ's N cyclopropanecarboxamide 0 Br Cs2CO3, Xantphos '*--N ,N) Dac, )1,,....cl..x Pd2(d1:1123),.4;Itoxane H2N 'Nl rl 1 --' N , I +
._..j.
N CI Step-I ,N
:-.N1 D3C, 1 Cs2CO3, Xantphos Pd2(dba)3. 1,4-dioxene 130 *C, 3 h Step-2 D3C, N

il'ArLI
r-II

N CI H
1-5 A-5 14a Compound 14 [00350] Step-1: 6-chloro-N-(methyl-d3)-4-((6-methy1-5,6-dihydropyrazino[2,3-c][1,7]naphthyridin-7-yl)amino)nicotinamide (11a): 14a (0.15 g) was synthesized by following procedure as described for the synthesis of compound 1 (step-2) using 1-5 (0.203 g, 0.95 mmol) and A-5 (0.28, 0.792 mmol) as the starting materials. LCMS (ES) in/z; 385.1 [M+H].
[00351] Step-2: 6-(cyclopropanecarboxamido)-N-(methyl-d3)-4-46-methy1-5,6-dihydropyrazino[2,3-c][1,71naphthyridin-7-yl)amino)nicotinamide (Compound 14):

Compound 14 (51 mg) was synthesized by following procedure as described for the synthesis of compound 1 (step-2) using 14a (0.18 g, 0.468 mmol) and cyclopropanecarboxamide (0.06 g, 0.702 mmol) as the starting materials. LCMS (ES) in/z; 434.3 [M+H]. 1-1-1NMR
(400 MHz, DMSO-d6) 6 11.68(s, 111); 10.67(s, 1H); 9.49(s, 1H); 8_63 (dd, li = 2.4 Hz, ./2= 8.4 Hz, 2H);
8.55 (s, 1H); 8.51 (s, 1H); 8.13 (d, J= 5.2 Hz, 1H); 7.58 (d, 1= 5.2 Hz, 1H);
4.37 (s, 2H); 2.55 (s, 3H); 1.97-1.95 (m, 1H); 0.77-0.73 (m, 4H).
[00352] The following compounds were synthesized by following the procedures described in the previous examples, using appropriate intermediates. For final Buchwald coupling, corresponding amine coupling partners (e.g., 2-amino-5-fluoropyridine or 2-amino-4,6-dimethylpyrimidine) or amide coupling partner (e.g., cyclopropanecarboxamide) were used, as appropriate.

Compound Structure Analytical Data No.
LCMS (ES) in/z; 460.2 [M-H]t 1H NMR (400 NI
MHz, DMSO-d6) 6 10.89 (s, 1H); 10.18 (s, 1H);
,.N
9.05 (s, 1H); 8.57 (d, J= 3.2 Hz, 1H); 8.17 (s, 0 HN 1H); 8.04 (s, 1H); 8.00 (d, J=
7.6 Hz, 1H); 7.76-D3c_N)y, H I 7.66 (m, 3H); 7.57 (d, J= 8.0 Hz, 1H); 7.38-7.30 (m, 2H); 4.26 (s, 2H); 2.48 (s, 3H).
LCMS (ES) in/z; 430.2 [M-H_I+. 1H NMR (400 MHz, DMSO-d6) 6 10.71 (s, 1H); 10.52 (s, 1H);
I 8.58 (dd, Ji= 1.6 Hz, .12 = 4.8 Hz, 1H); 8.53 (s, N
1H); 8.50 (s, 1H); 8.11 (s, 1H); 7.96 (dd,.// = 0.8 HN 3 Hz, J2 = 7.6 Hz, 1H); 7.74 (dd, = 1.2 Hz, J2 =
D3c,)L)0 7.6 Hz, 1H); 7.43 (dd, Ji = 1.2 Hz, J2 = 8.0 Hz, H I
Thsr'..N)-C7 1H); 7.38-7.34 (m, 1H); 7.23 (apparent t, J= 8.0 Hz, 1H); 4.26 (s, 2H); 2.46 (s, 3H); 2.01-1.96 (m, 1H); 0.80-0.74 (m, 4H).
LCMS (ES) in/z; 433.3 [M-41]+. 111 NMR (400 N MHz, DMSO-d6) 6 10.73 (s, 1H);
10.54 (s, 1H);
9.16 (s, 1H); 8.73 (s, 1H); 8.56 (s, 1H); 8.51 (s, 4 HN 1H); 8.07 (s, 1H); 7.98 (ddõ/i -0.8 Hz, J2 - 7.6 D3C,N,IL& 0 Hz, 1H); 7.55 (d, J= 7.6 Hz, 1H); 7.28 (app t, J
H I õILv = 8.0 Hz, 1H); 4.32 (s, 2H); 2.44 (s, 3H); 2.01-N N
1.95 (m, 1H); 0.80-0.77 (m, 4H).
LCMS (ES) m/z; 450.2 [M1-H]. 'H NMR (400 MHz, DMSO-d6) 6 10.71 (s; 1H); 10.52 (s, 1H);
N 8.57 (d, J= 2.8 Hz, 1H); 8.54 (s, 111); 8.50 (s, 1H); 8.10 (s, 1H); 7.90 (dd, Ji = 1.2 Hz, J2 = 7.6 HN Hz, 1H); 7.74 (dd, Ji= 2.8 Hz, J2 = 8.8 Hz, 1H);

D3C..rsj 7.43 (d, J= 6.8 Hz, 1H); 7.24 (t, J= 8.0 Hz, 1H);
y 0 H I õkv 428 (s, 2H); 246 (s, 3H); 200-1 96 (in, 1H);
N N
0.78-0.76 (m, 4H).

Compound Structure Analytical Data No.
LCMS (ES) m/z; 434.2 [M+H]t 1H NMR (400 I I
N MHz, DMSO-d6) 6 11.30 (s, 1H);
10.88 (s, 1H);
9.16 (s, 1H); 9.10 (s, 1H); 8.74 (s, 1H); 8.16 (s, 6 1H); 8.07 (dd, Ji = 0.8 Hz, J2 = 7.6 Hz, 1H); 7.58 o HN
(d, J= 6.8 Hz, 1H); 7.31 (app t, J= 8.0 Hz, 1H);
D3C,N)yL 0 NIN NL õjt...\/ 4.33 (s, 2H); 2.44 (s, 3H); 2.11-2.07 (m, 1H);
0.84-0.80 (m, 4H).
LCMS (ES) m/z; 451.2 I_M-httr. 1H NMR (400 MHz, DMSO-d6) 6 11.28 (s, 1H); 10.88 (s, 1H);
9.08 (s, 1H); 8.58 (d, .1= 2.8 Hz, 1H); 8.20 (s, 1H); 8.00 (dd, Ji = 1.2 Hz, J2 = 8.0 Hz, 1H); 7.74 O HN (dd, = 2.8 Hz, J2 = 8.8 Hz, 1H); 7.46 (d, J-DfAC, 6.8 Hz, 1H); 7.28 (t, J= 8.0 Hz, 1H); 4.29 (s, H I
NN N
, )-Lv 2H); 2.47 (s, 3H); 2.11-2.05 (m, 1H); 0.83-0.79 (m, 4H).
LCMS (ES) m/z; 433.3 [M+Hr. 1H NMR (400 N MHz, DMSO-d6) 6 10.75 (s, 1H);
10.59 (s, 1H);
FJ 8.64 (d, J= 2.4 Hz, 1H); 8.58-8.56 (m, 2H); 8.51 8 HN (s, 1H); 8.11 (s, 1H); 7.92 (d, J= 7.6 Hz, 1H);

7.50 (dõ I- 7.6 Hz, 1H); 7.29 (tõ I- 7.6 Hz, 1H);
D3C.,N) 0 I v 4.37 (s, 2H); 2.55 (s, 3H); 2.00-1.95 (m, 1H);
H
0.78-0.76 (m, 4H).
LCMS (ES) m/z; 429.3 [M-H]. 1H NMR (400 MHz, DMSO-d6) 10.72 (s, 1H); 10.50 (s, 1H)N. ;
NI
8.56 (d, J= 1.2 Hz, 2H); 8.47 (s, 1H); 8.09 (s, 1H); 7.93 (dd, Jr= 1.2 Hz, J2 = 7.6 Hz, 1H); 7.71 15 0 HN (dd, = 1.2 Hz, J2 = 8.0 Hz, 1H);
7.41 (d, J-0 6.8 Hz, 1H); 7.36-7.32 (m, 1H);
7.20 (apparent t, I N NV
J= 8.0 Hz, 1H); 4.23 (s, 2H); 2.78 (d, J= 4.4 Hz, 3H); 243 (s, 3H); 1 97-1 91 (rn, 1H); 0 76-0 70 (m, 4H).

Compound Structure Analytical Data No.
N LCMS (ES) m/z; 434.3 [M+H]t 1HINMR (400 N MI-1z, DMSO-d6) 6 11.31 (s, 1H);
10.93 (s, 1H);
9.11(s, 1H); 8.64 (d, J= 2.4 Hz, 1H); 8.58 (d, J
16 HN = 2.8 Hz, 1H); 8.20 (s, 1H); 8.01 (dd, = 1.2 D3CN)Yj Hz, J2 = 8.0 Hz, 1H); 7.53 (d, J= 6.8 Hz, 1H);
, 0 = N I .. 7.32 (t, J= 8.0 Hz, 1H);
4.38 (s, 2H); 2.55 (s, N N
3H); 2.11-2.06 (m, 1H); 0.84-0.80 (m, 4H).
LCMS (ES) m/z; 436.3 I_M-PHJ+. 1I-INMR (400 N
MHz, DMSO-d6) 6 10.68 (s, 1H); 10.58 (s, 1H);
N
8.63 (d, = 2.4 Hz, 1H); 8.57 (d, = 2.4 Hz, 1H); 8.55 (s, 1H); 8.51 (s, 1H); 8.10 (s, 1H); 7.93 0 HN (dd, Ji = 1.2 Hz, J2 = 7.6 Hz, 1H); 7.52 (dd, Ji -D3C,N). 0 1.2 Hz, J2 = 7.6 Hz, 1H); 7.28 (t, J= 7.6 Hz, 1H);
= 'NAV 4.37 (s, 2H); 2.02-1.97 (m, tH); 0.80-0.75 (m, 4H).
N LCMS (ES) m/z; 437.3 [M+Ht lEINMR (400 N MI-1z, DMSO-d6) 6 11.30 (s, 1H);
10.91 (s, 1H);
rõ..N 9.10 (s, 1H); 8_62 (d, J = 2.8 Hz, 1H); 8.56 (d, J
18 0 HN = 2.4 Hz, 1H); 8.18 (s, 1H);
7.98 (dd, Ji = 0.8 Hz, .1:2 - 8.0 Hz, I H); 7.52 (dd,J10.8Hz,J2-D3C,NI)Y-I`i N
= k. N I HAv 8.0 Hz, 1H); 7.30 (t, J= 8.0 Hz, 1H); 4.36 (s, pi 2H); 2.10-2.02 (m, 1H); 0.82-0.76 (m, 4H).
LCMS (ES) m/z; 433.2 [M+H]. 1FINMIR (400 MHz, DMSO-d6) c 11.64 (s, 1H); 10.71 (s, 1H), 9.53 (s, 1H); 8.62 (d, J= 4.8 Hz, 1H); 8.60 (s, 19 1H); 8.55 (s, 1H); 8.13 (d, J=
5.6 Hz, 1H); 7.79 D3C, (d, J = 8.0 Hz, 1H); 7.67 (d, J
= 5.2 Hz, 1H);
N'k=
LNNtL.77.48-7.44 (m, 1H); 4.31 (s, 2H); 2.51 (s, 3H);
H
2.03-1.97 (m, 1H); 0.82-0.76 (m, 4H).

Compound Structure Analytical Data No.
LCMS (ES) m/z; 434.3 [M H]t 1-FINMR (400 MHz, DMSO-d6) 6 10.71 (s, 1H); 10.52 (s, 1H);
D I
N 8.58 (dd, = 1.6 Hz, J2 = 4.8 Hz, 1H); 8.53 (s, 1H); 8.50 (s, 1H); 8.11 (s, 1H); 7.96 (dd, = 1.2 20 HN Hz, J2 = 7.6 Hz, 1H); 7.74 (dd, = 1.6 Hz, J2=

D3Crsj)-1 7.6 Hz, 1H); 7.43 (dd, = 0.8 Hz, J2 = 8.0 Hz, , 0 I 1H); 7.38-7.34 (m, 1H); 7.23 (t, J= 7.6 Hz, 1H);
N
2.50 (s, 3H); 2.01-L93 (m, tH); 0.78-0.74 (m, 4H).
LCMS (ES) m/z; 453.3 [M+H]. 11-1 NMR (400 1 MHz, DMSO-d6) 6 11.28 (s, 1H);
10.89 (s, 1H);
N
9.09 (s, 1H); 8.58 (d, J= 2.8 Hz, 1H); 8.20 (s, 21 1H); 8.00 (dd, Ji = 1.2 Hz, J2 =
8.0 Hz, 1H); 7.75 0 HN (dd, = 2.8 Hz, J2 = 8.8 Hz, 1H);
7.46 (d, J =
D3C.,N)yL 0 6.8 Hz, 1H); 7.28 (t, J= 8.0 Hz, 1H); 2.47 (s, NNNA
3H); 2.11-2.07 (m, 1H); 0.83-0.79 (m, 4H).
LCMS (ES) m/z; 452.3 [M-4-1]'. 11-1 NMR (400 1 MHz, DMSO-d6) 6 10.71 (s, 1H);
10.53 (s, 1H);
N
8.57 (d, J= 2.8 Hz, 1H); 8.54(s, 1H); 8.50(s, 22 1H); 8.10 (s, 1H); 7.91 (d, J=
7.2 Hz, 1H); 7.74 0 HN (dd, .h = 2.8 Hz, ./2= 8.8 Hz, 1H); 7.43 (d, =
D3C,N4,..-11...,õ 0 H 1 6.8 Hz, 1H); 7.24 (t, J= 8.0 Hz, 1H); 2.46 (s, 3H); 2.01-1.97 (m, 1H); 0.79-0.76 (m, 4H).
LCMS (ES) rn/z; 449.3 [MH-1]+. 'H NMR (400 NI
MHz, DMSO-d6) 6 11.27 (s, 1H); 10.88 (s, 1H);
9.08 (s, 1H); 8.21 (s, 1H); 8.03 (dd, Ji = 1.2 Hz, 23 0 HN J2 = 7.6 Hz, 1H); 7.62 (d, J=
7.6 Hz, 1H); 7.44 D3CNJL.L 0 (d, J = 7.2 Hz, 1H); 7.27-7.22 (m, 2H); 2.55 (s, H 3H), 2.45 (s, 3H), 2.10-2.06 (m, 1H), 0.83-0.79 (m, 4H).

Compound Structure Analytical Data No.
LCMS (ES) m/z; 448.3 [M+H]t NMR (400 Nz, DMS0-6/6) 6 10.72 (s, 1H); 10.53 (s, 1H);
8.54 (s, 1H); 8.49 (s, 1H); 8.11 (s, 1H); 7.94 (dd, 24 0 HN Ji = 1.2 Hz, J2 = 8.0 Hz, 1H);
7.62 (d, J= 8.0 Hz, D3CN) 1H); 7.42 (d, J= 8.0 Hz, 1H);
7.24-7.20 (m, 2H);
, 0 H I 2.54 (s 3H). 2.45 (s, 3H); 2.01-1.97 (m, 1H);
0.80-0.75 (m, 4H).
CF3 LCMS (ES) in/z; 502.3 I_M-41_1'.
1H NMR (400 N MHz, DMSO-d6) 6 10.73 (s, 1H);
10.56 (s, 1H);
8.55 (s, 1H); 8.51 (s, 1H); 8.10 (s, 1H); 8.04 (d, 25 = 7.6 Hz, 1f1); 7.95 (dd, Ji =
1.2 Hz, J2 = 7.6 Hz, O HN

0 1H); 7.86 (d, J= 7.6 Hz, 1H);
7.50 (d, J= 8.0 H I jcv Hz, 1H); 7.28 (t, J = 8.0 Hz, 1H); 2.51 (s, 3H);
2.01-1.95 (m, 1H); 0.80-0.72 (m, 4H).

LCMS (ES) m/z; 503.3 [M-41]+. 11-1 NMR (400 N
MHz, DMSO-d6) 6 11.30 (s, 1H); 10.90 (s, 1H);
9.10 (s, 1H); 8.18 (s, 1H); 8.02-7.98 (m, 2H);

O HN 7.86 (d, J = 8.0 Hz, 1H);
7.51 (d, J = 7.6 Hz, D3C..
0 1H); 7.29 (t, J= 8.0 Hz, 1H);
2.47 (s, 3H); 2.10-NNN H I
2.02 (m, 1H); 0.82-078 (m, 4H).
N,-- LCMS (ES) in,/z; 464.2 [M+H]t 1H
NMR (400 MHz, DMSO-do) o 11.30 (s, 1H); 10.85 (s, 1H);

9.10 (s, 1H); 8.62 (dd, Ji = 0.8 Hz, J2 = 8.0 Hz, 27 1H); 8.17 (s, 1H); 7.97 (s, 1H);
7.47 (d, J = 7.2 O HN
D3CN)..y.L....s Hz, 1H); 7.25 (t, J= 8.0 Hz, 1H); 4.11 (s, 2H);
, 0 H 3.77 (s, 3H); 2.45 (s, 3H); 2.09-2.07 (m, 1H);
N N
0.83-0.79 (m, 4H)_ Compound Structure Analytical Data No.
N, N LCMS (ES) in/z; 463.3 [M+H]t -IHNMIR (400 0 MHz, DMSO-d6) (510.71 (s, 1H);
10,49 (s, 1H);
8.56-8.52 (m, 2H); 8.49 (s, 1H); 8.06 (s, 1H);

0 HN 7.96 (s, 1H); 7.44 (d, J= 7.2 Hz, 1H); 7.20 (t, J=
D,c, N) 8.0 Hz, 11-1); 4.10 (s, 2H); 3.77 (s, 3H); 2.46 (s, N N 3H); 2.01-1.95 (m, 1H); 0.80-0.74 (m, 4H).
Example A-1: Oral Tablet [00353] A tablet is prepared by mixing 20-50% by weight of a compound of Formula (Al), or a pharmaceutically acceptable salt thereof, 20-50% by weight of microcrystalline cellulose, 1-10%
by weight of low-substituted hydroxypropyl cellulose, and 1-10% by weight of magnesium stearate or other appropriate excipients. Tablets are prepared by direct compression. The total weight of the compressed tablets is maintained at 100 -500 mg.
Example A-2: Topical Cream [00354] A topical cream (or an ointment, gel, oil, or the like) is prepared by mixing a compound of Formula (Al) with a non-toxic vehicle such as an oil and water emulsion, optionally diluted with additional buffering agents, stabilizing agents, scent ingredients, emulsifiers, oils, alcohols, or other excipients A cream, for purposes of the present disclosure, encompasses topical compositions of various viscosities (e.g., lotions, ointments, pastes, gels, tinctures, and the like).
Example A-3: Eye Drops [00355] Eye drops comprising a compound of Formula (Al) are prepared by dissolving an appropriate amount of the compound in water or a buffered solution (e g , buffered for salinity and/or pH), and optionally diluted with additional excipients or vehicles. An eye drop may be further compounded with stabilizers, time-release polymers, or other diluents to enhance the therapeutic effect or duration of action at the treated site (e.g., ocular tissues or surrounding areas). Viscous liquids and gels are also included within the definition of eye drops.

Example A-4: Metered-Dose Inhaler (MDI) [00356] A compound of Formula (Al) is dissolved in a liquid or liquified gas propellant, optionally in combination with stabilizing or flavor excipients, to be administered via an aerosol spray in a metered dose to a patient's lungs or respiratory tract. The aerosol may optionally be further compounded with a bronchodilator, a corticosteroid, or a combination of the two. An MDI for use with a compound of Formula (Al) may be self-administered, or in the case of critical host-mediated lung inflammation requiring artificial ventilation (e.g., Covid-19 associated respiratory inflammation), the inhalant may be administered via tracheal intubation, nasopharyngeal catheterization, or similar devices in accordance with advanced airway management procedures.
Example B-1: HEK-BlueTM IL-23 and IFNa/fl Reporter Assays for Profiling TYK2 Pseudokinase (JI12) Inhibition [00357] HEKBlueTM IL-23 and IFNa/13 cells with a stably-integrated cytokine receptor and STAT3 or STAT1 express STAT-inducible secreted embryonic alkaline phosphatase (SEAP) reporter gene upon cytokine stimulation. These cells are plated in DMEM
(Gibco) containing 10% heat-inactivated FBS (Gibco) and 100 U/mL PenStrep (Gibco) at 37 C under 5% CO2 conditions for 20-22 hours The cells are then pretreated with serially diluted test compounds for 60 min prior to stimulation with either 10 ng/mL human recombinant 1L-23 (Miltenyl Biotech) or lng/mL human recombinant lFNa (InvivoGen) for 22- 24 hours for LL-23 or 16-18 h for IFNa. SEAP induction is measured using the QUANTI BlueTM Solution (InvivoGen) according to the manufacturer's instructions. Inhibition data are calculated by comparison to no inhibitor control wells for 0% inhibition and non-stimulated control wells for 100%
inhibition. Dose response curves are generated to determine the concentration required to inhibit 50% of cellular response (IC50) as derived by non-linear regression analysis.
[00358] Table B-1 provides TYK2 inhibitory activity of illustrative compounds, where A
means IC50 <30 nM; B means ICso is between 30 and 300 nA/I; C means ICso is between 300 and 1000 nM; D means ICso > 1000 nM; n/a means no observed activity at 1000 nM, and n.d.
means not determined.
Table B-1: Representative TYK2 Inhibitory Activity Compound No. IL23 IFNa Compound No. 1123 IFNa Compound No. IL23 IFNa Compound No. IL23 IFNa 21 A B 37 A n.d.
22 A B 38 A n.d.
Example B-2: HTRF-Based Selectivity Assay:
1003591 The ability of compounds to inhibit the activity of JAK1, JAK2, JAK3 and TYK2 is measured using a recombinant purified His or GST-tagged catalytic domain for each enzyme (JAK1, JAK2 and TYK2 are generated in-house, JAK3 was purchased from Cama biosciences, Cat# 08-046) in an HTRF format biochemical assay. The reactions employs a commercial peptide substrate from Cisbio (Cat# 62TKOPEC). The basic assay protocol is as follows: first, 2.5 I, of diluted compounds (4x) in DMSO are dispensed into a 384-well Optiplate. Next, 2.5 gL of enzyme (final concentrations for enzymes are: TYK2- 700 ng/mL, JAK1-80.6 ng/mL, JAK2- 2.1 ng/mL and JAK3- 171.8 ng/mL) is added and incubated at RT for 5-20 min. Finally, 1 of mixture of 2X ATP [Final concentration 20 M for TYK2, 21.43 [iM for JAK1, 14.7 1,1M
for JAK2 and 2.12 tIM for JAK3] + 2X Substrate [Final concentration 217 nM for TYK2, 454.7 nM for JAK1, 200 nM for JAK2 and 257.4 nM for JAK3] is added to 384 well Optiplate.
Composition of Kinase assay buffer used in the assay is as follows: HEPES
50mM, EGTA
1mM, MgCl2 10mM, DTT 2mM, Tween-20 0.01% and water. Then the plates are shaken and then incubated at 26.5 C for 60 min. At the end of the incubation, 101aL of mixture of 2X
detection mix [(EU3+Cryptate(1X) + Streptavidin-XL665(final concentration:
62.5nM) (HTRF
KinEASE-TK kit Cat462TKOPEC)] is added to the assay plate, shaken and incubated at 26.5 C
for 60 min Plates are then read on a Perkin Elmer Envision for HTRF signal (665 nm reading /
615 nm reading). After normalization to untreated controls, the percent inhibition of the HTRF
signal at each compound concentration is calculated. The plot of percent inhibition versus the log of compound concentration is fit with a 4-parameter dose response equation to calculate IC50 values.
[00360] Table B-2 provides selectivity data of illustrative compounds across the JAK family (TYK2, JAK1, JAK2, and JAK3) at the kinase domain (JH1), where A means ICso <
30 nM; B
means IC50 is between 30 and 300 nM; C means IC50 is between 300 and 1000 nM;
D means IC50> 1000 nM; and n/a means no observed activity at 1000 n1\4.
Table B-2: HTRF-Based TYK2 Selectivity Data Cmpd No. TYK2-JH1 JAK1-JH1 JAK2-JH1 JAK3-JH1 Example B-3: HEKBlueTM IL-2 and IFN7 Reporter Assays for determining selectivity [00361] HIEKBlueTM IL-2 and IFNy reporter cells with a stably-integrated cytokine receptor and STAT5 or STAT1 express STAT-inducible secreted embryonic alkaline phosphatase (SEAP) reporter gene upon cytokine stimulation. These cells were plated in DMEM (Gibco) containing 10% heat-inactivated FBS (Gibco) and 100 U/mL PenStrep (Gibco) at 37 C under 5% CO2 conditions for 20-22 hours. The cells were then pretreated with serially diluted test compounds for 60 min prior to stimulation with either 4 ng/mL human recombinant IL-2 (Miltenyl Biotech) or 50 ng/mL human recombinant IFNy (InvivoGen) for 24 hours. SEAP
induction was measured using the QUANTI-Bluem Solution (InvivoGen) according to the manufacturer's instructions. Inhibition data were calculated by comparison to no inhibitor control wells for 0% inhibition and non-stimulated control wells for 100%
inhibition. Dose response curves were generated to determine the concentration required to inhibit 50% of cellular response (TC50) as derived by non-linear regression analysis 1003621 Table B-3 provides selectivity data (SEAP) of illustrative compounds for LL-2 and IFN- y, where A means IC50 <30 nM; B means ICso is between 30 and 300 nM; C
means IC50 is between 300 and 1000 nM, D means IC50 > 1000 nM; and n/a means no observed activity at 1000 nM.
Table B-3: SEAP Selectivity Assay Data at IL-2 and IFN-y Compound No. 1L-2 IFN-y Compound No. 1L-2 1FN-y 1003631 The examples and embodiments described herein are for illustrative purposes only and various modifications or changes suggested to persons skilled in the art are to be included within the spirit and purview of this application and scope of the appended claims

Claims

111What is claimed is:
1. A compound of Formula (I):
or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
Ring A is an unsubstituted or substituted 6-membered heterocyclic ring wherein Al and A2 are independently N or C, wherein if Ring A is substituted then Ring A is substituted with p instances of le;
each R8 is independently hydrogen, halogen, unsubstituted or substituted C1-C6 alkyl, unsubstituted or substituted Cl-C6 deuteroalkyl, unsubstituted or substituted Ch alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Ci-C 6 fluoroalkyl, unsubstituted or substituted Cr-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -OR'', -C(=0)R1 6, -CO2R16, -C(=0)N(R16)2, -N(R' 6)2, -NR'6C(=0)R'7, -SR'', -S(=0)R1 7, -S02R1 7, or -SO2N(Rl6)2, wherein if R8 is attached to a nitrogen atom, then R8 is hydrogen, unsubstituted or substituted Ci-C6 alkyl, unsubstituted or substituted C1-C6 deuteroalkyl, unsubstituted or substituted C 6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Cr-C 6 fluoroalkyl, unsubstituted or substituted Cr-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -C(-0)R16, -CO2Rl6, -C(=0)N(R1-6)2, -S(-0)R17, -502R17, or -SO2N(R16)2, or two R8 attached to the same carbon atom are taken together to form =0, =S, or =1\11-1;
z is _moo-, _0_, _S-, -S(=0)-, or -S02-;
Itm is hydrogen, Cr-C6 alkyl, Cr-C6 deuteroalkyl, Ci-C6 fluoroalkyl, C3-C6 cycloalkyl, or monocyclic heterocycle, X', X2, and X' are each independently CRH or N;
each R11 is independently hydrogen, halogen, unsubstituted or substituted C1-alkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted C1-C6 fluoroalkyl, unsubstituted or substituted C1-C 6 heteroalkyl, un substituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -OR17, -C(=c)R16, -CO2R16, -C(=0)N(R16)2, N(R16)2, NR16C(_0)R17, SR16, s(_0)R17, 502R17, or -SO2N(R16)2;
B1 is N or CR12a;
B2 is N or CR1 2b, R and Ri2b are each independently hydrogen, halogen, unsubstituted or substituted C1-C6 alkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted CI-C6 fluoroalkyl, unsubstituted or substituted Cl-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -C(=0)R16, -CO2R16, -C(=0)N(R16)2, -NR16)2, 0)R17, -SR16, -S(=0)R17, -SO2R17, or -SO2N(R16)2;
R1 is hydrogen, Ci-C6 alkyl, or Ci-C6 fluoroalkyl;
R2 is a Ring B that is an unsubstituted or substituted heterocycle or unsubstituted or substituted carbocycle, wherein if Ring B is substituted then Ring B is substituted with q instances of R'1;
each R13 is independently halogen, unsubstituted or substituted Ci-C6 alkyl, unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted C1-C6 fluoroalkyl, unsubstituted or substituted Cl-C6 heteroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -C(=0)R'6, -CO2R'6, -C(=0)N(R16)2, _N(R16)2, _NR16C(_0)R17, _SR16, _s(_0)R17,502R17, or -SO2N(R16)2;
or two R13 groups on adjacent atoms of Ring B are taken together with the intervening atoms to which they are attached to form an unsubstituted or substituted 5- or 6-membered monocyclic carbocycle or an unsubstituted or substituted 5- or 6-membered monocyclic heterocycle;
or R2 is -C(=0)R14, _C(_(D)NR14R15, or -C(=0)0R14;
RIA is hydrogen, unsubstituted or substituted Cl-C6 alkyl, Ci-C6 deuteroalkyl unsubstituted or substituted C2-C6 alkenyl, unsubstituted or substituted C2-C6 alkynyl, unsubstituted or substituted Ci-C6 heteroalkyl, unsubstituted or substituted monocyclic carbocycle, unsubstituted or substituted bicyclic carbocycle, unsubstituted or substituted monocyclic heterocycle, or unsubstituted or sub stituted bi cycl i c heterocycl e;
R15 is hydrogen, C1-C6 alkyl, or CI -C6 fluoroalkyl;
or R14 and R15 are taken together with the intervening atoms to which they are attached to form an unsubstituted or substituted 4- to 6-membered monocyclic heterocycle;
or R' and R' 5 are taken together with the intervening atoms to which they are attached to form an unsubstituted or substituted 5- or 6-membered monocyclic heterocycle;
W is -NR3- or -0-;
R3 i s hydrogen, Cl-C6 alkyl, Ci-C6 deuteroalkyl, C1-C6 fluoroalkyl, C 3-C6 cycloalkyl, or monocyclic heterocycle;
i s hydrogen, C1-C6 alkyl, CI-C6 deuteroalkyl, CI-C6 fluoroalkyl, C 3-C6 cycloalkyl, or monocyclic heterocycle;
or R3 and R4 are taken together with the N atom to which they are attached to form a substituted or unsubstituted N-containing heterocycle;
or R3 and R12a are taken together with the intervening atoms to which they are attached to form a substituted or un substituted 5- or 6-membered heterocycl e;
R5 is hydrogen, Ci -C6 alkyl, C1 -C6 fluoroalkyl, C3-C6 cycloalkyl, or monocyclic heterocycle;
each R6 and R7 is independently hydrogen, deuterium, halogen, Ci-C6 alkyl, Ci-deuteroalkyl, Cl-C6 fluoroalkyl, C3-C6 cycloalkyl, or monocyclic heterocycle, -CN, -OH, -OR', -C(=0)R'6, -0O2R16, -C(=0)N(R'6)2, -N(R'6)2, -NR 16C(_c)Rt7, _SRt6, S(=0)R17, -S021117, or -SO2N(R16)2;
or one R6 and one R7 attached to the same carbon atom are taken together with the carbon atom to which they are attached to form C=0 or C3-C4 cycloalkyl;
each R16 is independently hydrogen, substituted or unsubstituted Ci-C6 alkyl, substituted or unsubstituted Ci-C6 fluoroalkyl, substituted or unsubstituted Ci-C6 heteroalkyl, substituted or unsubstituted C3-C7 cycloalkyl, substituted or unsubstituted monocyclic 3- to 8-membered hacrocycloalkyl, substituted or unsubstitutcd phenyl, or substituted or unsubstituted monocyclic heteroaryl;
or two R16 on the same N atom are taken together with the N atom to which they are attached to form a substituted or unsubstituted N-containing heterocycle; and each R17 is independently substituted or unsubstituted Cl-C6 alkyl, substituted or unsubstituted CI-C6 fluoroalkyl, substituted or unsubstituted CI-C6 heteroalkyl, substituted or unsubstituted C3-C7 cycloalkyl, substituted or unsubstituted monocyclic 3- to 8-membered heterocycloalkyl, substituted or unsubstituted phenyl, or substituted or unsubstituted monocyclic heteroaryl;
wherein each substituted alkyl, substituted fluoroalkyl, substituted deuteroalkyl, substituted alkoxy, substituted fluoroalkoxy, substituted heteroalkyl, substituted carbocycle, and substituted heterocycle is substituted with one or more Rs groups independently selected from the group consisting of deuterium, halogen, Cl-C6 alkyl, monocyclic carbocycle, monocyclic heterocycle, -CN, -CH7CN, -OR", -CH20108, -CO2R18, -CH2CO2R18, -C(-0)N(R18)2, -CH2C(=0)N(R18)2, -N(R18)2, -CH2N(R18)2, -NR"C(=0)R18, -CH2NR18C(=0)R", -NR"SO2R19, -CH2NR18S02R19, -SR", -CH2SR18, -S(=0)109, -CH2S(=0)109, -SO2R1-9, -CH2S02R1-9, -SO2N(R18)2, or -CH2S02N(R")2;
each R" is independently selected from hydrogen, CI-C6 alkyl, CI-C6 fluoroalkyl, Ci-C6 heteroalkyl, G3-C6 cycloalkyl, C2-C6 heterocycloalkyl, phenyl, benzyl, 5-membered heteroaryl and 6-membered heteroaryl;
or two R18 groups are taken together with the N atom to which they are attached to form a N-containing heterocycle;
each R" is independently selected from Ci-C6 alkyl, Cl-C6 heteroalkyl, C3-C6 cycloalkyl, C2-C6 heterocycloalkyl, phenyl, benzyl, 5-membered heteroaryl, and 6-membered heteroaryl;
n is 1, 2, or 3;
p is 0, 1, 2, 3, or 4; and q is 0, 1, 2, 3, or 4.
2. The compound of claim 1, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein R1 is hydrogen or Cl-C4 alkyl.
3. The compound of claim 1 or claim 2, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein R5 is hydrogen or Cl-C4 alkyl.
4. The compound of any one of claims 1-3, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein R5 is hydrogen.
5. The compound of any onc of claims 1-4, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein W is -NR3-.
6. The compound of claim 5, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein re is hydrogen, C i-C4 alkyl, or CI-C4 deuteroalkyl.
7. The compound of claim 5 or claim 6, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein 1 is hydrogen.

8. The compound of any one of claims 1-7, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein ie is hydrogen, C1-C24 alkyl, or C i-C4 deuteroalkyl.
9. The compound of claim 1 having a structure of Formula (II):
or a pharmaceutically acceptable salt, tautomer, or solvate thereof 10. The compound of any one of claims 1-9, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
X1 is CR", X2 is CR", and X3 is CR";
or is CR", X2 is CR", and X3 is N;
or X' is CR", X2 is N, and X3 is CR";
or Xl is CR", X2 is N, and X3 is N;
or X1 is N, X2 is CR", and X3 is CR";
or XI is N, X2 is CR11, and X3 is N;
or X' is N, X2 is N, and X3 is CR11.
11. The compound of any one of claims 1-10, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
XI is CR", X2 is CR", and X3 is CR";
or X1 is CR", X2 is CR", and X3 is N;
or Xl is CR", X2 is N, and X3 is CR";
or Xl is N, X2 is CR11, and X3 is CR".
12. The compound of any one of claims 1-11, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
Xl is CR", X2 is CR", and X3 is CR".
13. The compound of any one of claims 1-12, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein each R" is independently hydrogen, halogen, Cl-C6 alkyl, Ci-C6 fluoroalkyl, -CN, -OH, -0R1-7, or -N(R16)2.
14. The compound of any one of claims 1-13, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein each RH is independently hydrogen or fluoro.

15. The compound of claim 1 having a structure of Formula (IV).
or a phaunaceutically acceptable salt, tautomet, or solvate thereof.
16. The compound of any one of claims 1-15, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein Ring A is an unsubstituted or substituted 6-membered heteroaryl ring wherein A' and A' are independently N or C, wherein if Ring A is substituted then Ring A is substituted with p instances of R8.
17. The compound of any one of claims 1-16, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein Ring A is an unsubstituted or substituted pyridine, unsubstituted or substituted pyridazine, unsubstituted or substituted pyrimidine, unsubstituted or substituted pyrazine, unsubstituted or substituted triazine, or unsubstituted or substituted pyridone, wherein if Ring A is substituted then Ring A is substituted with p instances of 18. The compound of any one of claims 1-17, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein Ring A is an unsubstituted or substituted pyridine, unsubstituted or substituted pyrimidine, unsubstituted or substituted pyrazine, or unsubstituted or substituted pyridone, wherein if Ring A is substituted then Ring A is substituted with p instances of R8.
19. The compound of any one of claims 1-18, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein Ring A is an un substituted or substituted pyri done;
wherein if Ring A is substituted then Ring A is substituted with p instances of R8.
20. The compound of any one of claims 1-18, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein Ring A is an unsubstituted or substituted pyridine, or unsubstituted or substituted pyrimidine, wherein if Ring A is substituted then Ring A
i s substituted with p instances of 118 21. The compound of claim 1 having a structure of Formula (VI):

or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
(i) A' and A2 are each C; and A6, A7, Ag, and A9 are each independently Cle or N;
(ii) i s N; A2 i s C; A6, A7, and Ag are each independently Clr or N; and A9 is C(=0);
(iii) Al is C; A2 is N; A6 is C(-0); and A7, A8, and A9are each independently CR8 or N;
or (iv) Al and A2 are each C; one of A6, A7, A8, and A9is NR8, wherein A6, A7, Ag, or A9 adjacent to the NR8 is C(-0) and the remaining members of A6, A7, Ag, and A9are each independently CR8 or N.
22. The compound of claim 21, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
A' is C; A2 is C; A6 is N; A7 is CRg; Ag is CRg; and A9 is CRg;
or Al is C; A2 is C; A6 i s CR8; A7 is N; Ag is CRg; and A9 is CRg;
or A' is C; A2 is C; A6 is CR8; A7 is CR8; g is N; and A9 is CR8;
or Al is C; A2 is C; A6 is CR8; A7 is CR8; Ag is CRg; and A9 is N;
or Al is N; A2 is C; A6 is CRg; A7 is CRg; Ag is CRg; and A9 is C(=0);
or Al is C; A2 is N; A6 is C(-0); A7 is CR8; A8 is CR8; and A9 is CRg;
or Al is C; A2 is C; A6 is Nits; A7 is C(=0); A8 is CR8; and A9 is CRg;
or Al is C; A2 is C; A6 is C(=0); A7 is NR8; A8 is CR8; and A9 is CRg;
or Al is C; A2 is C; A6 is CR8; A7 is NR8; A8 is C(-0); and A9 is CR8;
or Al is C; A2 is C; A6 is CR8; A7 is C(-0); A8 is NR8; and A9 is CR8;
or Al is C; A2 is C; A6 is CRg; A7 is CRg; Ag is NR8; and A9 is C(=0);
or Al is C; A2 is C; A6 is CRg; A7 is CRg; Ag is C(=0); and A9 is NRg;
or Al is C; A2 is C; A6 i s N; A7 is N; A8 is CR8; and A9 is CR8;
or Al is C; A2 is C; A6 is N; A7 is CR8; A8 is N; and A9 is CR8;
or Al is C; A2 is C; A6 is N; A7 is CR8; A8 is CR8; and A9 is N;
or Al is C; A2 is C; A6 i s CR8; A7 is N; A8 is N; and A9 is CR8;
or Al is C; A2 is C; A6 is CRg; A7 is N; A8 is CRg; and A9 is N;

or A-1 is C, A2 is C; A6 is Cle; A7 is Cle; A8 is N; and A9 is N.
23. The compound of claim 21, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
Al is C; A2 is C; A6 is N; A7 is CR8: Ag is CR8; and A9 is CR8;
or Al is C; A2 is C; A6 is N; A7 is CR8; A8 is N; and A9 is CR8;
or Al is C, A2 is C; A6 is N; A7 is Cle; A8 is Cle; and A9 is N;
or A' is C; A2 is C; A6 is C(=0); A7 is Nle; A8 is CR8; and A9 is CR8 24. The compound of claim 21 having a structure of Formula (V1a):
or a pharmaceutically acceptable salt, tautomer, or solvate thereof; wherein A8 is Cle or N.
25. The compound of claim 21 having a structure of Formula (VIb) or Formula (VIc):
or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
26. The compound of any one of claims 1-25, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein each R8 is independently hydrogen, halogen, unsubstituted or substituted Ci-C6 alkyl, unsubstituted or substituted C1-C6 deuteroalkyl, unsubstituted or substituted CI-C6 fluoroalkyl, unsubstituted or substituted carbocycle, n substituted or substituted heterocycle, -CN, -OH, -0R17, -C(=0)R -CO2R16, or -C (=0)N(R16)2; wherein if R8 is attached to a nitrogen atom, then R8 is hydrogen, unsubstituted or substituted Ci-C6 alkyl, unsubstituted or substituted C1-C6 deuteroalkyl, unsubstituted or substituted C1-C6 fluoroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -C(=0)R16, -CO2R1-6, or -C(=0)N(RI-6)2.
27. The compound of any one of claims 1-26, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein each R8 is independently hydrogen, -C1, -F, methyl, ethyl, isopropyl, -CD3, -CH2OH, -CF3, cyclopropyl, oxetanyl, azetidinyl, -CN, -OH, -CO2H, or -CO2CH3; wherein if R8 is attached to a nitrogen atom, then R8 is hydrogen, methyl, ethyl, isopropyl, -CD3, -CH2OH, -CF3, cyclopropyl, oxetanyl, azetidinyl, -CO2H, or -CO2CH3.
28. The compound of any one of claims 1-27, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein each R8 is independently hydrogen, methyl, -CD3, -OH, -CH2OH, -CF3, oxetanyl, -CN, or -CO2CH3; wherein if R8 is attached to a nitrogen atom, then R8 is hydrogen, methyl, -CD3, -CH2OH, oxetanyl, or -CO2CH3.
29. The compound of any one of claims 1-28, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein each R6 and R7 is independently hydrogen, deuterium, halogen, CI-C4 alkyl, or CI-C4 deuteroalkyl.
30. The compound of any one of claims 1-29, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein each R6 and R7 is independently hydrogen, deuterium, F, or m ethyl 3 1 . The compound of any one of claims 1-30, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein Z is -NR1 -, -0-, or -802-.
32. The compound of any one of claims 1-31, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein Z is -NR1 - or -0-.
33. The compound of any one of claims 1-32, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein Z is -NR1 -.
34. The compound of any one of claims 1-33, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein Rm is hydrogen, C1-C4 alkyl, CI-CI
deuteroalkyl, or cyclopropyl.
35. The compound of any one of claims 1-32, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein Z is -0-.
36. The compound of any onc of claims 1-35, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein R2 is a Ring B that is an unsubstituted or substituted heterocycle or unsubstituted or substituted carbocycle, wherein if Ring B is substituted then Ring B is substituted with q instances of RE.
37. The compound of any one of claims 1-36, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:

R2 is a Ring B that is an unsubstituted or substituted monocy clic carbocycle, unsubstituted or substituted bicyclic carbocycle, unsubstituted or substituted monocyclic heterocycle, or unsubstituted or substituted bicyclic heterocycle, wherein if Ring B is substituted then Ring B is substituted with q instances of R1-3.
38. The compound of any one of claims 1-37, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
R2 is a Ring B that is an unsubstituted or substituted phenyl, unsubstituted or substituted monocyclic 6-membered heteroaryl, or unsubstituted or substituted monocyclic 5-membered heteroaryl, wherein if Ring B is substituted then Ring B is substituted with q instances of R13.
39. The compound of any one of claims 1-38, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
R2 is a Ring B that is an unsubstituted or substituted phenyl or unsubstituted or substituted monocyclic 6-membered heteroaryl, wherein if Ring B is substituted then Ring B is substituted with q instances of R13.
40. The compound of any one of claims 1-39, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
R2 i s a Ring B that i s an unsubstituted or substituted phenyl, unsubstituted or substituted pyridinyl, unsubstituted or substituted pyrimidinyl, unsubstituted or substituted pyrazinyl, or unsubstituted or substituted pyridazinyl, wherein if Ring B i s substituted then Ring B is substituted with q instances of R13.
41. The compound of any one of claims 1-40, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
R2 is a Ring B that is an unsubstituted or substituted pyridinyl or unsubstituted or substituted pyrimidinyl, wherein if Ring B is substituted then Ring B is substituted with q instances of R1'.
42. The compound of any one of claims 1-41, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
R2 is a Ring B that is an unsubstituted or substituted pyridinyl, wherein if Ring B is substituted thcn Ring B is substituted with q instances of R13.
43. The compound of any one of claims 1-39, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:

R2 i s and q is 0, 1, 2, 3, or 4.
44. The compound of any one of claims 1-39, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
Ring B is , and q is 0, 1, 2, 3, or 4.
45. The compound of claim 1 having a structure of Formula (VIII):
or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
V is N, CH, or CR13;
q is 1, 2, 3, or 4;
Al and A' are each C; and A6, A7, A8, and A9 are each independently CR8 or N.
46. The compound of claim 45 having a structure of Formula (Villa):
or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein A8 is CR8 or N.
47. The compound of any one of claims 45-46, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein V is N.

48. The compound of any one of claims 45-46, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein V is CH or CR13.
49. The compound of any one of claims 1-48, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein each R13 is independently halogen, unsubstituted or substituted Cl-C6 alkyl, unsubstituted or substituted Cl-C6 fluoroalkyl, unsubstituted or substituted carbocycle, unsubstituted or substituted heterocycle, -CN, -OH, -OR', -C(=0)R16, -CO2R' 6, -C(=0)N(R1 6)2, -N(R16)2, _N-R16C(=c)R17, _SO2R1 7, or -SO2N(R16)2.
50. The compound of any one of claims 1-49, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein each R13 is independently -F, -C1, -CH3, or -CF3.
1 . The compound of any one of claims 1-35, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein R2 is -C(=0)R14, -C(_0)NRI4R1.5, or -C(=0)0R14.
52. The compound of claim 51, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein R2 is -C(=0)R14.
53. The compound of claim 51, having a structure of Formula (IX):
or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
A1 and A2 are each C; and each of A6, A7, A8, and A9 are independently CR8 or N.
54. The compound of claim 53, having a structure of Formula (IXa):
or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein A' is Cle or N.
55. The compound of any one of claims 51-54, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein R14 is unsubstituted or substituted C1-C6 alkyl, unsubstituted or substituted C3-C4 cycloalkyl, or unsubstituted or substituted 4-membered heterocycloalkyl; wherein the substituted alkyl, substituted heteroalkyl, substituted cycloalkyl, or substituted heterocycloalkyl is substituted with one or more RS
groups independently selected from the group consisting of deuterium, halogen, -CN, -NH2, -OH, -NH(CH3), -N(CH3)2, -CH3, -CH2CH3, -CHF2, -CF3, -OCH3, -OCHE', and -0CF3.
56. The compound of any one of claims 1-55, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
B1 is CR12a; and B2 is CR121);
or B1 is N; and B2 is CR12b;
or B1 is CR12a; and B2 is N;
or B1 is N; and B2 is N.
57. The compound of any one of claims 1-56, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein:
TV is CR'', and 112 is CR12h;
or B1 is N; and B2 is CR12b.
58. The compound of any one of claims 1-57, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein R12a and R121' are each independently hydrogen, halogen, Cl-C4 alkyl, Ci-C4 fluoroalkyl, or -CN.
59. The compound of any one of claims 1-58, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, wherein R12a and R121' are each hydrogen.
60. A compound selected from:
1: 6-(cyclopropanecarboxamido)-N-(methyl-d3)-4-06-methy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-yl)amino)pyridazine-3-carboxamide;
2: 6-((5-fluoropyridin-2-yl)amino)-N-(methyl-d3)-4-06-methyl-5,6-dihydrobenzo[h][1,6]naphthyridin-7-yl)amino)pyridazine-3-carboxamide; and 3: 6-(cyclopropanccarboxamido)-N-(methyl-d3)-4-06-methyl-5,6-dihydrobenzo[h][1,6]naphthyridin-7-yl)amino)nicotinamide;
4: 6-(cyclopropanecarboxamido)-N-(methyl-d3)-446-methy1-5,6-dihydropyrimido[5,4-c]quinolin-7-yl)amino)nicotinamide;
5: 6-(cy cl opropanecarboxami do)-443 -fluoro-6-m ethyl -5, 6-dihydrobenzo[h][1,6]naphthyridin-7-yl)amino)-N-(methyl-d3)nicotinamide;

6: 6-(cy c1opropanecarboxamido)-N-(m ethy1-d3)-4-((6-m ethy1-5,6-dihy dropyrimido[5,4-c] quinolin-7-yl)amino)pyri dazine-3 -carboxami de;
7: 6-(cy clopropanecarb oxami do)-4-((3 -fluoro-6-methy1-5, 6-dihydrob enzo [h] [1,6]naphthyri di n-7-yl)amino)-N-(m ethyl-d3)pyri dazine-3-carb oxamide;
8: 6-(cy clopropanecarb oxami do)-N-(m ethyl -d3)-4-06-m ethy1-5,6-dihy dropyrazino [2,3 -c] quinolin-7-yl)amino)nicotinamide;
9: 6-(cy clopropanecarb oxami do)-44(2,6-dimethy1-1- oxo-1,2,5, 6-tetrahydrobenzo[c] [2, 6]naphthyridin-7-y1)amino)-N-(methy1-d3)nicotinami de;
10: 6-(cyclopropanecarboxamido)-N-(m ethyl-d3)-4-((6 -methy1-5,6- di hy dropyrazino [2,3 -c] quinolin-7-yl)amino)pyridazine-3 -carboxamide;
11: 6-(cyclopropanecarboxamido)-4-((2,6-dimethyl-1-oxo-1,2,5,6-tetrahydrobenzo[c] [2, 6]naphthyridin-7-y1)ami no)-N-(methy1 -d3)pyridazine-3 -carb oxamide;
12: 4-((3-cyano-6-methy1-5,6-dihydrobenzo [h] [1, 6]naphthyridin-7-yl)amin o)-(cycloprop anecarb oxami do)-N-(methyl-d3)nicotinamide;
13: 4-((3-cyano-6-methy1-5,6-dihydrobenzo [h] [1, 6]naphthyridin-7-yl)amin o)-(cycl oprop a n ecarboxam i do)-N-(ni ethyl -d3)pyri dazi ne-3-carboxam i de;
14: 6-(cyclopropanecarboxamido)-N-(m ethyl-d3)-4-((6 -methy1-5,6- di hy dropyrazino [2,3 -c] [1,7]naphthyridin-7-yeamino)nicotinamide;
15: 6-(cyclopropanecarboxamido)-N-methy1-4-((6-methy1-5,6-dihydrob enzo[h] [1,6]naphthyri di n-7-yl)amino)ni cotinamide;
16: 6-(cyclopropanecarboxamido)-N-(m ethyl-d3)-4-((6 -methy1-5,6- di hy dropyrazino [2,3 -c] quinolin-7-yl)amino)pyridazine-3 -carboxamide;
17: 6-(cyclopropanecarboxamido)-N-(m ethyl-d3)-4-((6-(methyl-d3)-5,6-dihydropyrazino [2,3 -c]quinolin-7-yl)amino)nicotinamide;
18: 6-(cy cl opropanecarb oxami do)-N-(m ethyl-d3)-4-((6-(methyl-d3)-5,6-dihydropyrazino [2,3 -c]quinolin-7-yl)amino)pyridazine-3 -carboxamide, 19: 6-(cyclopropanecarboxamido)-N-(m ethyl-d3)-4-((6 -methy1-5,6- di hy dropyrido [3 ,4-h] [1, 6]naphthyridin-7-yl)amino)nicotinamide;
20: 6-(cy cl opropanecarb oxami do)-N-(m ethyl-d3)-4-((6-methy1-5,6-dihydrob enzo [h] [1,6]naphthyri di n-7-y1-5,5-d2)amino)nicotinamide;
21: 6-(cy cl opropanecarb oxami do)-443-fluoro-6-methy1-5,6-di hydrob enzo[h] [1,6]naphthyri di n-7-y1-5,5-d2)amino)-N-(m ethyl -d3)pyri dazin e-3 -carb oxamide;

22: 6-(cy clopropanecarboxamido)-443-fluoro-6-methy1-5,6-di hydrob enzo[h] [1,6]naphthyri di n-7-yl -5,5-d2)ami no)-N-(m ethyl -d3)ni coti n am i de;
23: 6-(cyclopropanecarboxamido)-4-((2,6-dimethy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-y1-5,5-d2)amino)-N-(methyl-d3)pyridazine-3-carboxamide;
24: 6-(cyclopropanecarboxamido)-4-((2,6-dimethy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-y1-5,5-d2)amino)-N-(methyl-d3)nicotinamide;
25: 6-(cyclopropanecarboxamido)-N-(methyl-d3)-44(6-methy1-2-(trifluoromethyl)-5,6-dihydrobenzo[h][1,6]naphthyridin-7-y1-5,5-d2)amino)nicotinamide;
26: 6-(cyclopropanecarboxamido)-N-(methyl-d3)-44(6-methy1-2-(trifluoromethyl)-5,6-dihydrobenzo[h][1,6]naphthyridin-7-y1-5,5-d2)amino)pyridazine-3-carboxamide;
27: 6-(cyclopropanecarboxamido)-4-((2,6-dimethyl-1-oxo-1,2,5,6-tetrahydropyridazino[4,5-c]quinolin-7-yl)amino)-N-(methyl-d3)pyridazine-3-carboxamide;
28: 6-(cyclopropanecarboxamido)-4-((2,6-dimethyl-1-oxo-1,2,5,6-tetrahydropyridazino[4,5-c]quinolin-7-yl)amino)-N-(methyl-d3)nicotinamide;
29: 6-(cyclopropanecarboxamido)-N-methy1-4-((6-methy1-5,6-di hydrob en zo[li ] [1,6]naplithyri di n-7-y1 )am i no)pyri clazi n e-3-carboxami de;
30: 6-(cyclopropanecarboxamido)-N-methy1-4-((6-methy1-5,6-dihydropyrazino[2,3-c]quinolin-7-y1)amino)nicotinamide;
31: 6-(cyclopropanecarboxamido)-4410-fluoro-5-methy1-5,6-dihydrophenanthridin-yl)amino)-N-(methyl-d3)pyridazine-3-carboxamide;
32: (R)-6-(cyclopropanecarboxamido)-445,6-dimethy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-yl)amino)-N-(methyl-d3)pyridazine-3-carboxamide; and 33: (S)-6-(cyclopropanecarboxamido)-4-((5,6-dimethy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-yl)amino)-N-(methyl-d3)pyridazine-3-carboxamide;
or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
61. A pharmaceutical composition comprising the compound of any onc of claims 1-60, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, and a pharmaceutically acceptable excipient.
62. A method of treating a TYK2-mediated disease or condition in a patient in need thereof, comprising administering to the patient a therapeutically effective amount of a compound of any one of claims 1-60, or a pharmaceutically acceptable salt, tautomer, or solvate thereof 63. A method of treating an inflammatory disease or condition or autoimmune disease or condition in a patient in need thereof, comprising administering to the patient a therapeutically effective amount of a compound of any one of claims 1-60, or a pharmaceutically acceptable salt, tautomer, or solvate thereof 64. The method of claim 62 or claim 63, wherein the disease or condition is selected from rheumatoid arthritis, multiple sclerosis, psoriasis, psoriatic arthritis, lupus, systemic lupus erythematosus, Sj Ogren's syndrome, ankylosing spondylitis, vitiligo, atopic dermatitis, scleroderma, alopecia, hidradenitis suppurativa, uveitis, dry eye, intestinal bowel disease, Crohn's disease, ulcerative colitis, celiac disease, Bechet's disease, type 1 diabetes, systemic sclerosis, and idiopathic pulmonary fibrosis.
65 The method of any one of claims 62-64, wherein the compound is administered topically.
66. The method of claim 65, wherein the compound is provided in a gel, cream, ointment, liquid, or transdermal patch.
67. The method of any one of claims 62-64, wherein the compound is administered by ophthalmic administration.
6g The method of claim 67, wherein the compound is provided in a li quid solution, suspension, gel, depot, or other preparation that can be administered to the eye or surrounding tissue (e.g., eye drops).
69. A compound selected from:
3: 6-(cyclopropanecarboxamido)-N-(methyl-d3)-4-((6-methy1-5, dihydrobenzo[h][1,6]naphthyridin-7-yl)amino)nicotinamide;
15: 6-(cyclopropanecarboxamido)-N-methy1-4-((6-methy1-5,6-dihydrobenzo[h][1,6]naphthyridin-7-y1)amino)nicotinamide;
34: 6-(cyclopropanecarboxamido)-4-((2,5-dimethy1-4,5-dihydro-2H-pyrazolo[4,3-c]quinolin-6-yl)amino)-N-methylpyridazine-3-carboxamide;
35: 4-((2,5-dimethy1-4,5-dihydro-2H-pyrazolo[4,3-c]quinolin-6-yl)amino)-645-fluoropyridin-2-yDamino)-N-methylnicotinamide;
36: 44(2,5-dimethy1-4,5-dihydro-2H-pyrazolo[4,3-c]quinolin-6-yl)amino)-6-((2,6-dimethylpyrimidin-4-y1)amino)-N-methylnicotinamide;
37: 6-(cyclopropanecarboxamido)-442,5-dimethy1-4,5-dihydro-2H-[1,2,3]triazolo[4,5-c]quinolin-6-yl)amino)-N-methylnicotinamide; and 38: 6-(cycl opropanecarboxami do)-4-((2,5-dim ethyl -4,5-di hydropyrazol o [1,5-a]quinoxalin-6-yl)amino)-N-methylpyridazine-3-carboxamide;

or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
70. A pharmaceutical composition comprising the compound of claim 69, or a pharmaceutically acceptable salt, tautomer, or solvate thereof, and a pharmaceutically acceptable excipient.
71. A method of treating a TYK2-mediated disease or condition in a patient in need thereof, comprising administering to the patient a therapeutically effective amount of a compound of claim 69, or a pharmaceutically acceptable salt, tautomer, or solvate thereof.
72. A method of treating an inflammatory disease or condition or autoimmune disease or condition in a patient in need thereof, comprising administering to the patient a therapeutically effective amount of a compound of claim 69, or a pharmaceutically acceptable salt, tautomer, or solvate thereof 73. The method of claim 71 or claim 72, wherein the disease or condition is selected from rheumatoid arthritis, multiple sclerosis, psoriasis, psoriatic arthritis, lupus, systemic lupus erythematosus, SjOgren's syndrome, ankylosing spondylitis, vitiligo, atopic dermatitis, scleroderma, alopecia, hidradenitis suppurativa, uveitis, dry eye, intestinal bowel disease, Crohn's disease, ulcerative colitis, celiac disease, Bechet's disease, type 1 di abetes, systerni c scl erosi s, and i di opathi c pul m on ary fibrosi s 74. The method of any one of claims 71-73, wherein the compound is administered topically.
75. The method of claim 74, wherein the compound is provided in a gel, cream, ointment, liquid, or transdermal patch.
76. The method of any one of claims 71-73, wherein the compound is administered by ophthalmic administration.
77. The method of claim 76, wherein the compound is provided in a liquid solution, suspension, gel, depot, or other preparation that can be administered to the eye or surrounding tissue (e.g., eye drops).