Pyrimidinyl and 1,3,5-triazinyl benzimidazole sulfonamides and their use in cancer therapy

A compound of Formula IA, IB, or IC:

• or an enantiomer, a mixture of enantiomers, or a mixture of two or more diastereomers thereof;
• or a pharmaceutically acceptable salt, solvate, hydrate, or prodrug thereof;
• wherein:
• each RI and R2 is independently (a) hydrogen, cyano, halo, or nitro;
• (b) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-7 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, or heterocyclyl;
• or (c) —C(O)R1a, —C(O)OR1b, —C(O)NR1bR1c, —C(NR)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;
• wherein each R1a, R1b, R1c, and R1d is independently (i) hydrogen;
• (ii) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-7 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, or heterocyclyl;
• or (iii) R1b and R1c together with the N atom to which they are attached form heterocyclyl;
• each R3 and R4 is independently hydrogen or C1-6 alkyl;
• or R3 and R4 are linked together to form a bond, C1-6 alkylene, C1-6 heteroalkylene, C2-6 alkenylene, or C2-6 heteroalkenylene;
• each R5 is independently C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-7 cycloalkyl, C3-7 cycloalkyl-C1-6 alkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, C1-6 alkyl-heteroaryl, heterocyclyl, C1-6 alkyl-heterocyclyl, or —NR5mR5n, where R5m and R5n are each independently hydrogen, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-7 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, or heterocyclyl;
• each R6 is independently hydrogen or C1-6 alkyl;
• A, B, D, and E are each independently a bond, C, O, N, S, NR7, C(O), CR7, or CR7R7′, where each R7 and R7′ is independently hydrogen, halo, C1-6 alkyl, C2-6 alkenyl, or C2-6 alkynyl;
• wherein the bonds between A, B, D, and E may be saturated or unsaturated;
• with the proviso that no more than one of A, B, D, and E are a bond;
• Q is C1-6 alkylene, C2-6 alkenylene, C2-6 alkynylene, C3-7 cycloalkylene, C6-14 arylene, heteroarylene, or heterocyclylene;
• each T1 is independently a bond, C1-6 alkylene, —O—, or —NR8—;
• each T2 is independently a bond, C1-6 alkylene, or —NR8—;
• wherein each R8 is independently hydrogen, C1-6 alkyl, C2-6 alkenyl, or C2-6 alkynyl;
• and
• with the proviso that at least one of the two atoms that are directly attached to the —SO2— group is nitrogen;
• X, Y, and Z are each independently a nitrogen atom or CR9, with the proviso that at least two of X, Y, and Z are nitrogen atoms;
• where R9 is hydrogen or C1-6 alkyl;
• wherein each alkyl, alkylene, heteroalkylene, alkenyl, alkenylene, heteroalkenylene, alkynyl, alkynylene, cycloalkyl, cycloalkylene, aryl, arylene, heteroaryl, heteroarylene, heterocyclyl, and heterocyclylene in R1, R2, R3, R4, R5, R6, R7, R8, R9, R1a, R1b, R1c, R1d, R5m, R5n, Q, T1, and T2, is optionally substituted with one or more groups, each independently selected from (a) cyano, halo, and nitro;
• (b) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-7 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, and heterocyclyl, each optionally substituted with one or more, in one embodiment, one, two, three, or four, substituents Q1;
• and (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, —SRa, —S(O)Ra, —S(O)2Ra, —S(O)NRbRc, and —S(O)2NRbRc, wherein each Ra, Rb, Re, and Rd is independently (i) hydrogen;
• (ii) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-7 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, or heterocyclyl, each optionally substituted with one or more, in one embodiment, one, two, three, or four, substituents Q1;
• 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 Q1;
• wherein each Q1 is independently selected from the group consisting of (a) cyano, halo, and nitro;
• (b) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-7 cycloalkyl, C6-14 aryl, C7-15 aralkyl, heteroaryl, and heterocyclyl;
• and (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)ORh, —NReC(O)NRfRg, —NReC(═NRh)NRfRg, —NReS(O)Rh, —NReS(O)2Rh, —NReS(O)NRfRg, —NReS(O)2NRfRg, —S(O)Re, —S(O)2Re, —S(O)NRfRg, and —S(O)2NRfRg;
• wherein each Re, Rf, Rg, and Rh is independently (i) hydrogen;
• (ii) C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-7 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.