Phenyl and tertbutylacetic acid substituted pyridinones having anti-HIV effects

A compound of Formula I:

• wherein:
• R1 is phenyl optionally substituted by one to four substituents selected from C1-3alkyl, halogen, or —CH2CH2CH2O— wherein this group is bonded to adjacent carbon atoms on the phenyl to form a ring;
• L is a bond, C1-3alkylene, —SO2—, —SO2CH2—, —NHSO2—, —NHSO2CH2—, —C(O)—, —C(O)NH—, —C(O)NHCH2—, —C(O)OCH2—, —C(O)C(O)—, —CH2C(O)—, C3-7heteroaryl, or —C3-7heteroarylNH—, wherein each heteroaryl comprises one to three heteroatoms selected from S, N, and O;
• R2 is H, cyclohexyl, or phenyl wherein said cyclohexyl and phenyl are optionally substituted by one to three substituents selected from C1-3alkyl and halogen
• R3 is H or —NHSO2R4 wherein R4 is C1-8alkyl and wherein said alkyl can include cycloalkyl portions.