Benzodiazepine derivatives as RSV inhibitors

A compound represented by Formula (Ib):

• or a pharmaceutically acceptable salt thereof, wherein:
• R1 is hydrogen or methyl;
• R2 and R5 are each independently hydrogen or methyl;
• A is selected from the groups below:
• R3 is phenyl optionally substituted with one to three substituents selected from the group consisting of hydrogen, halo, —CF3, —OCF3, —CH3, —SO2Me, and cyano;
• R4 is selected from aryl and heteroaryl;
• wherein R4 is optionally substituted with 1 to 3 substituents independently selected from halo, —CH3, —CF3, —OCF3, —CN, —NH2, —OH, —CH2N(CH3)2, —C(O)CH3, —NH—(C1-C6)alkyl, —NH—(C1-C6)alkyl-(C1-C6)alkoxy, —SO2—(C1-C6)alkyl, —SO2—NH—(C1-C6)alkyl, —NH—SO2—(C1-C6)alkyl, 3- to 12-membered heterocyclyl, aryl, heteroaryl, C1-C8-alkyl, C2-C8-alkenyl, C3-C8-cycloalkyl, C3-C8-cycloalkenyl, C1-C8-alkoxy, CH3OCH2—, CH3OCH2CH2O—,
• each R6 is independently selected from halogen, methyl, CF3 and cyano;
• and n is 0 to 2.