Macrocyclic serine protease inhibitors, pharmaceutical compositions thereof, and their use for treating HCV infections

摘要

Provided herein are macrocyclic serine protease inhibitor compounds, for example, of Formula I, and pharmaceutical compositions and processes of preparation thereof. Also provided are methods of their use for the treatment of an HCV infection in a host in need thereof.;

主权项

1. A compound of Formula I:or an isotopic variant thereof; or a pharmaceutically acceptable salt, thereof; wherein:
RA is (i) hydrogen or halogen; or (ii) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-10 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, or heterocyclyl; and RB is a moiety (Ia) or (Ib): wherein:
each Z is independently CR1 or N;R1, R2, R5, R6, R7, and R8 are each independently (i) hydrogen, halo, cyano, trifluoromethyl, or nitro; (ii) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-10 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, or heterocyclyl; or (iii) —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, —P(O)R1aR1d, —P(O)(OR1a)R1d, —P(O)(OR1a)(OR1d), —SR1a, —S(O)R1a, —S(O)2R1a, —S(O)NR1bR1c, or —S(O)2NR1bR1c; andeach R1a, R1b, R1c, and R1d is independently hydrogen, C1-C6 alkyl, C2-C6 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, alkenyl, alkynyl, cycloalkyl, aryl, aralkyl, heteroaryl, and heterocyclyl is optionally substituted with one or more substituents Q, where each Q is independently (a) oxo, 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, each of which is further optionally substituted with one, two, three, or four, substituents Qa; or (c) —C(O)Ra, —C(O)ORa, —C(O)NRbRc, —C(NRa)NRbRc, —ORa, —OC(O)Ra, —OC(O)ORa, —OC(O)NRbRc, —OC(═NRa)NRbRc, —OS(O)Ra, —OS(O)2Ra, —OS(O)NRbRc, —OS(O)2NRbRc, —NRbRc, —NRaC(O)Rd, —NRaC(O)ORd, —NRaC(O)NRbRc, —NRaC(═NRd)NRbRc, —NRaS(O)Rd, —NRaS(O)2Rd, —NRaS(O)NRbRc, —NRaS(O)2NRbRc, —P(O)RaRd, —P(O)(ORa)Rd, —P(O)(ORa)(ORd), —SRa, —S(O)Ra, —S(O)2Ra, —S(O)NRbRc, or —S(O)2NRbRc, wherein each Ra, Rb, Rc, and Rd is independently (i) hydrogen; (ii) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-10 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, or heterocyclyl, each optionally substituted with 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, two, three, or four, substituents Qa; wherein each Qa is independently (a) oxo, 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)Re, —C(O)ORe, —C(O)NRfRg,—C(NRe)NRfRg, —ORe, —OC(O)Re, —OC(O)ORe, —OC(O)NRfRg, —OC(═NRe)NRfRg, —OS(O)Re, —OS(O)2Re, —OS(O)NRfRg, —OS(O)2NRfRg, —NRfRg, —NReC(O)Rh, —NReC(O)ORf, —NReC(O)NRfRg, —NReC(═NRh)NRfRg, —NReS(O)Rh, —NReS(O)2Rh, —NReS(O)NRfRg, —NReS(O)2NRfRg, —P(O)ReRh, —P(O)(ORe)Rh, —P(O)(ORe)(ORh), —SRe, —S(O)Re, —S(O)2Re, —S(O)NRfRg, or —S(O)2NRfRg; wherein each Re, Rf, Rg, and Rh is independently (i) hydrogen; (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.