Heterocyclic GLP-1 agonists

A compound of Formula (I-A4-1), or a pharmaceutically acceptable salt thereof:

• wherein:
• is a single bond or a double bond;
• R0-1 is selected from the group consisting of hydrogen and (C1-C3)alkyl;
• X4 is selected from the group consisting of N and CRy;
• Ry is selected from the group consisting of hydrogen, —OH, (C1-C6)alkyl, (C1-C6)haloalkyl, (C1-C6)alkoxy, (C1-C6)haloalkoxy, CN, and halogen;
• T2 is (C1-C3)alkyl which is substituted with a substituent selected from the group consisting of (C1-C3)alkoxy, S(O)2(C1-C3 alkyl), (C3-C6)cycloalkyl, 3- to 6-membered heterocycloalkyl, phenyl, and 5- to 6-membered heteroaryl, wherein the phenyl or 5- to 6-membered heteroaryl are each optionally substituted with halogen or (C1-C3)alkyl;
• Raa is selected from the group consisting of hydrogen and (C1-C3)alkyl;
• Ring C is selected from the group consisting of phenyl and 6-membered heteroaryl;
• b is 0, 1, or 2;
• and
• each occurrence of Rb is independently selected from the group consisting of (C1-C6)alkyl, (C1-C6)haloalkyl, (C1-C6)alkoxy, (C1-C6)haloalkoxy, halogen, and CN.