Imidazopyridazine il-17 inhibitor compounds

A compound of Formula (I):

• or a pharmaceutically acceptable salt thereof, wherein:
• R1 is:
• R1a independently for each occurrence is —C(1-3)alkyl or —C(3-5)cycloalkyl, wherein the —C(1-3)alkyl is unsubstituted or substituted with one to five fluorine atoms, or when m1 is 2, two geminal R1a groups together with the carbon atom to which they are attached form a spiro C(3-5)cycloalkyl;
• R1b independently for each occurrence is halo or —C(1-3)alkyl, wherein the —C(1-3)alkyl is unsubstituted or substituted with one to five fluorine atoms, or when n is 2, two R1b groups together with the carbon atoms to which they are attached form a fused C(3-7)cycloalkyl, wherein the C(3-7)cycloalkyl is unsubstituted or substituted with one to five fluorine atoms;
• n is 1 or 2;
• m1, m2, and m3 are independently 0, 1, or 2;
• R2 is H, —C(1-3)alkyl, —C(3-5)cycloalkyl, —C(1-3)alkyl-O—C(1-3)alkyl, —C(1-3)alkyl-O—C(3-5)cycloalkyl, or 4- to 6-membered heterocyclyl, wherein the —C(1-3)alkyl, —C(3-5)cycloalkyl, —C(1-3)alkyl-O—C(1-3)alkyl, and —C(1-3)alkyl-O—C(3-5)cycloalkyl groups are unsubstituted or substituted with one to six R2a groups;
• R2a independently for each occurrence is fluorine or —CN;
• R3 is —C(1-10)alkyl, —C(1-6)alkyl-O—C(1-6)alkyl, —C(1-6)alkyl-O—C(3-5)cycloalkyl, —C(1-6)alkyl-O—C(3-5)cycloalkyl-C(1-3)alkyl, —C(3-8)cycloalkyl, or —C(1-3)alkyl-(C(3-5)cycloalkyl)1-2, each of which is unsubstituted or substituted with one to six fluorine atoms;
• R4 is a 5-membered heteroaryl that is unsubstituted or substituted with one to two R4a groups;
• and
• R4a is halo, —C(1-6)alkyl, —O—C(1-6)alkyl, —C(1-6)alkyl-O—C(1-6)alkyl, or —C(0-2)alkyl-C(3-6)cycloalkyl, wherein the —C(1-6)alkyl, —O—C(1-6)alkyl, —C(1-6)alkyl-O—C(1-6)alkyl, and —C(0-2)alkyl-C(3-6)cycloalkyl are unsubstituted or substituted with one to six substituents independently selected from fluorine, —CH3, —CD3, —CD2CD3, —CH2F, —CHF2, and —CF3.