Indene compounds, pharmaceutical compositions thereof, and their therapeutic applications

A method of treating, preventing, or ameliorating one or more symptoms of a fibrotic disease in a subject, comprising administering to the subject in need thereof a therapeutically effective amount of a therapeutically effective amount of a compound of Formula (I-A):

• or an enantiomer, a mixture of enantiomers, a diastereomer, a mixture of two or more diastereomers, a tautomer, a mixture of two or more tautomers, or an isotopic variant thereof;
• or a pharmaceutically acceptable salt, solvate, hydrate, or prodrug thereof;
• wherein:
• R1 is (a) hydrogen, deuterium, cyano, halo, or nitro;
• or (b) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-10 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, or heterocyclyl;
• R2 is —CN, —C(O)OR2a, —C(O)NR2bR2c, —C(O)N(R2b)OR2e, —OR2a, —NR2bR2c, or heteroaryl;
• wherein R2a, R2b, and R2c are each independently hydrogen, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-10 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, or heterocyclyl;
• R3, R4, R5, and R6 are each independently (a) hydrogen, deuterium, cyano, halo, or nitro;
• (b) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-10 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, or heterocyclyl;
• or (c) —C(O)R1a, —C(O)OR1a, —C(O)NR1bR1c, —C(NR1a)NR1bR1c, —OR1a, —OC(O)R1a, —OC(O)OR1a, —OC(O)NR1bR1c, —OC(NR1a)NR1bR1c, —OS(O)R1a, —OS(O)2R1a, —OS(O)NR1bR1c, —OS(O)2NR1bR1c, —NR1bR1c, —NR1aC(O)R1d, —NR1aC(O)OR1d, —NR1aC(O)NR1bR1c, —NR1aC(NR1d)NR1bR1c, —NR1aS(O)R1d, —NR1aS(O)2R1d, —NR1aS(O)NR1bR1c, —NR1aS(O)2NR1bR1c, —SR1a, —S(O)R1a, —S(O)2R1a, —S(O)NR1bR1c, or —S(O)2NR1bR1c,
• each R7 is independently (a) deuterium, cyano, halo, or nitro;
• (b) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-10 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, or heterocyclyl;
• or (c) —C(O)R1a, —C(O)OR1a, —C(O)NR1bR1c, —C(NR1a)NR1bR1c, —OR1a, —OC(O)R1a, —OC(O)OR1a, —OC(O)NR1bR1c, —OC(NR1a)NR1bR1c, —OS(O)R1a, —OS(O)2R1a, —OS(O)NR1bR1c, —OS(O)2NR1bR1c, —NR1bR1c, —NR1aC(O)R1d, —NR1aC(O)OR1d, —NR1aC(O)NR1bR1c, —NR1aC(NR1d)NR1bR1c, —NR1aS(O)R1d, —NR1aS(O)2R14, —NR1aS(O)NR1bR1c, —NR1aS(O)2NR1bR1c, —SR1a, —S(O)R1a, —S(O)2R1a, —S(O)NR1bR1c, or —S(O)2NR1bR1c, or two adjacent R7 together with the phenyl group to which they are attached form naphthyl or bicyclic heteroaryl;
• RC is (a) hydrogen, deuterium, cyano, halo, or nitro;
• or (b) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-10 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, or heterocyclyl;
• or (c) —OR1a, —NR1bR1c, or —NR1aC(O)R1d,
• L is C1-6 alkylene or C2-6 alkenylene;
• n is an integer of 0, 1, 2, 3, or 4;
• and
• each R1a, R1b, R1c, and R1d is independently hydrogen, deuterium, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-10 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, or heterocyclyl;
• or R1a and R1c together with the C and N atoms to which they are attached form heterocyclyl;
• or R1b and R1c together with the N atom to which they are attached form heterocyclyl;
• wherein each alkyl, alkylene, alkenyl, alkenylene, alkynyl, cycloalkyl, aryl, aralkyl, heteroaryl, and heterocyclyl is optionally substituted with one or more, in one embodiment, one, two, three, or four, substituents Q, wherein each Q is independently selected from:
• (a) deuterium, cyano, halo, nitro, and oxo;
• (b) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-10 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, and heterocyclyl, each of which is further optionally substituted with one or more, in one embodiment, one, two, three, or four, substituents Qa;
• and (c) —C(O)Ra, —C(O)ORa, —C(O)NRbRc, —C(O)SRa, —C(NRa)NRbRc, —C(S)Ra, —C(S)ORa, —C(S)NRbRc, —ORa, —OC(O)Ra, —OC(O)ORa, —OC(O)NRbRc, —OC(O)SRa, —OC(NRa)NRbRc, —OC(S)Ra, —OC(S)ORa, —OC(S)NRbRc, —OS(O)Ra, —OS(O)2Ra, —OS(O)NRbRc, —OS(O)2NRbRc, —NRbRc, —NRaC(O)Rd, —NRaC(O)OR4, —NRaC(O)NRbRc, —NRaC(O)SRd, —NRaC(NRd)NRbRc, —NRaC(S)Rd, —NRaC(S)OR4, —NRaC(S)NRbRc, —NRaS(O)Rd, —NRaS(O)2R4, —NRaS(O)NRbRc, —NRaS(O)2NRbRc, —SRa, —S(O)Ra, —S(O)2Ra, —S(O)NRbRc, and —S(O)2NRbRc, wherein each Ra, Rb, Rc, and Rd is independently (i) hydrogen or deuterium;
• (ii) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-10 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, or heterocyclyl, each of which is optionally substituted with one or more, in one embodiment, one, two, three, or four, substituents Qa;
• or (iii) Rb and Rc together with the N atom to which they are attached form heterocyclyl optionally substituted with one or more, in one embodiment, one, two, three, or four, substituents Qa,
• wherein each Qa is independently selected from:
• (a) deuterium, cyano, halo, nitro, and oxo;
• (b) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-10 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, and heterocyclyl;
• and (c) —C(O)Re, —C(O)ORe, —C(O)NRfRg, —C(O)SRe, —C(NRe)NRfRg, —C(S)Re, —C(S)ORe, —C(S)NRfRg, —ORe, —OC(O)Re, —OC(O)ORe, —OC(O)NRfRg, —OC(O)SRe, —OC(NRe)NRfRg, —OC(S)Re, —OC(S)ORe, —OC(S)NRfRg, —OS(O)Re, —OS(O)2Re, —OS(O)NRfRg, —OS(O)2NRÎR8, —NRfRg, —NReC(O)Rh, —NReC(O)ORf, —NReC(O)NRfRg, —NReC(O)SRf, —NReC(NRh)NRfRg, —NReC(S)Rh, —NReC(S)ORf, —NReC(S)NRÎR8, —NReS(O)Rh, —NReS(O)2Rh, —NReS(O)NRfRg, —NReS(O)2NRfRg, —SRe, —S(O)Re, —S(O)2Re, —S(O)NRfRg, and —S(O)2NRfRg;
• wherein each Re, Rf, Rg, and Rhis independently (i) hydrogen or deuterium;
• (ii) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-10 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, or heterocyclyl;
• or (iii) Rf and Rg together with the N atom to which they are attached form heterocyclyl.